Merge branch 'master' into valid_deriver_2
This commit is contained in:
Eelco Dolstra
GitHub
commit
919781cacc
44 changed files with 1012 additions and 290 deletions
|
|
@ -1 +1 @@
|
|||
|
||||
This section lists advanced topics related to builds and builds performance
|
||||
|
|
|
|||
|
|
@ -31,15 +31,18 @@ store already contains a file with the same hash and base name.
|
|||
Otherwise, the file is downloaded, and an error is signaled if the
|
||||
actual hash of the file does not match the specified hash.
|
||||
|
||||
This command prints the hash on standard output. Additionally, if the
|
||||
option `--print-path` is used, the path of the downloaded file in the
|
||||
Nix store is also printed.
|
||||
This command prints the hash on standard output.
|
||||
The hash is printed using base-32 unless `--type md5` is specified,
|
||||
in which case it's printed using base-16.
|
||||
Additionally, if the option `--print-path` is used,
|
||||
the path of the downloaded file in the Nix store is also printed.
|
||||
|
||||
# Options
|
||||
|
||||
- `--type` *hashAlgo*\
|
||||
Use the specified cryptographic hash algorithm, which can be one of
|
||||
`md5`, `sha1`, `sha256`, and `sha512`.
|
||||
Use the specified cryptographic hash algorithm,
|
||||
which can be one of `md5`, `sha1`, `sha256`, and `sha512`.
|
||||
The default is `sha256`.
|
||||
|
||||
- `--print-path`\
|
||||
Print the store path of the downloaded file on standard output.
|
||||
|
|
|
|||
|
|
@ -7,7 +7,8 @@ under `src/{library_name}/tests` using the
|
|||
[googletest](https://google.github.io/googletest/) and
|
||||
[rapidcheck](https://github.com/emil-e/rapidcheck) frameworks.
|
||||
|
||||
You can run the whole testsuite with `make check`, or the tests for a specific component with `make libfoo-tests_RUN`. Finer-grained filtering is also possible using the [--gtest_filter](https://google.github.io/googletest/advanced.html#running-a-subset-of-the-tests) command-line option.
|
||||
You can run the whole testsuite with `make check`, or the tests for a specific component with `make libfoo-tests_RUN`.
|
||||
Finer-grained filtering is also possible using the [--gtest_filter](https://google.github.io/googletest/advanced.html#running-a-subset-of-the-tests) command-line option, or the `GTEST_FILTER` environment variable.
|
||||
|
||||
## Functional tests
|
||||
|
||||
|
|
|
|||
|
|
@ -1,236 +1,269 @@
|
|||
# Glossary
|
||||
|
||||
- [derivation]{#gloss-derivation}\
|
||||
A description of a build task. The result of a derivation is a
|
||||
store object. Derivations are typically specified in Nix expressions
|
||||
using the [`derivation` primitive](./language/derivations.md). These are
|
||||
translated into low-level *store derivations* (implicitly by
|
||||
`nix-env` and `nix-build`, or explicitly by `nix-instantiate`).
|
||||
- [derivation]{#gloss-derivation}
|
||||
|
||||
[derivation]: #gloss-derivation
|
||||
A description of a build task. The result of a derivation is a
|
||||
store object. Derivations are typically specified in Nix expressions
|
||||
using the [`derivation` primitive](./language/derivations.md). These are
|
||||
translated into low-level *store derivations* (implicitly by
|
||||
`nix-env` and `nix-build`, or explicitly by `nix-instantiate`).
|
||||
|
||||
- [store derivation]{#gloss-store-derivation}\
|
||||
A [derivation] represented as a `.drv` file in the [store].
|
||||
It has a [store path], like any [store object].
|
||||
[derivation]: #gloss-derivation
|
||||
|
||||
Example: `/nix/store/g946hcz4c8mdvq2g8vxx42z51qb71rvp-git-2.38.1.drv`
|
||||
- [store derivation]{#gloss-store-derivation}
|
||||
|
||||
See [`nix derivation show`](./command-ref/new-cli/nix3-derivation-show.md) (experimental) for displaying the contents of store derivations.
|
||||
A [derivation] represented as a `.drv` file in the [store].
|
||||
It has a [store path], like any [store object].
|
||||
|
||||
[store derivation]: #gloss-store-derivation
|
||||
Example: `/nix/store/g946hcz4c8mdvq2g8vxx42z51qb71rvp-git-2.38.1.drv`
|
||||
|
||||
- [instantiate]{#gloss-instantiate}, instantiation\
|
||||
Translate a [derivation] into a [store derivation].
|
||||
See [`nix derivation show`](./command-ref/new-cli/nix3-derivation-show.md) (experimental) for displaying the contents of store derivations.
|
||||
|
||||
See [`nix-instantiate`](./command-ref/nix-instantiate.md).
|
||||
[store derivation]: #gloss-store-derivation
|
||||
|
||||
[instantiate]: #gloss-instantiate
|
||||
- [instantiate]{#gloss-instantiate}, instantiation
|
||||
|
||||
- [realise]{#gloss-realise}, realisation\
|
||||
Ensure a [store path] is [valid][validity].
|
||||
Translate a [derivation] into a [store derivation].
|
||||
|
||||
This means either running the `builder` executable as specified in the corresponding [derivation] or fetching a pre-built [store object] from a [substituter].
|
||||
See [`nix-instantiate`](./command-ref/nix-instantiate.md).
|
||||
|
||||
See [`nix-build`](./command-ref/nix-build.md) and [`nix-store --realise`](@docroot@/command-ref/nix-store/realise.md).
|
||||
[instantiate]: #gloss-instantiate
|
||||
|
||||
See [`nix build`](./command-ref/new-cli/nix3-build.md) (experimental).
|
||||
- [realise]{#gloss-realise}, realisation
|
||||
|
||||
[realise]: #gloss-realise
|
||||
Ensure a [store path] is [valid][validity].
|
||||
|
||||
- [content-addressed derivation]{#gloss-content-addressed-derivation}\
|
||||
A derivation which has the
|
||||
[`__contentAddressed`](./language/advanced-attributes.md#adv-attr-__contentAddressed)
|
||||
attribute set to `true`.
|
||||
This means either running the `builder` executable as specified in the corresponding [derivation] or fetching a pre-built [store object] from a [substituter].
|
||||
|
||||
- [fixed-output derivation]{#gloss-fixed-output-derivation}\
|
||||
A derivation which includes the
|
||||
[`outputHash`](./language/advanced-attributes.md#adv-attr-outputHash) attribute.
|
||||
See [`nix-build`](./command-ref/nix-build.md) and [`nix-store --realise`](@docroot@/command-ref/nix-store/realise.md).
|
||||
|
||||
- [store]{#gloss-store}\
|
||||
The location in the file system where store objects live. Typically
|
||||
`/nix/store`.
|
||||
See [`nix build`](./command-ref/new-cli/nix3-build.md) (experimental).
|
||||
|
||||
From the perspective of the location where Nix is
|
||||
invoked, the Nix store can be referred to
|
||||
as a "_local_" or a "_remote_" one:
|
||||
[realise]: #gloss-realise
|
||||
|
||||
+ A [local store]{#gloss-local-store} exists on the filesystem of
|
||||
the machine where Nix is invoked. You can use other
|
||||
local stores by passing the `--store` flag to the
|
||||
`nix` command. Local stores can be used for building derivations.
|
||||
- [content-addressed derivation]{#gloss-content-addressed-derivation}
|
||||
|
||||
+ A *remote store* exists anywhere other than the
|
||||
local filesystem. One example is the `/nix/store`
|
||||
directory on another machine, accessed via `ssh` or
|
||||
served by the `nix-serve` Perl script.
|
||||
A derivation which has the
|
||||
[`__contentAddressed`](./language/advanced-attributes.md#adv-attr-__contentAddressed)
|
||||
attribute set to `true`.
|
||||
|
||||
[store]: #gloss-store
|
||||
[local store]: #gloss-local-store
|
||||
- [fixed-output derivation]{#gloss-fixed-output-derivation}
|
||||
|
||||
- [chroot store]{#gloss-chroot-store}\
|
||||
A [local store] whose canonical path is anything other than `/nix/store`.
|
||||
A derivation which includes the
|
||||
[`outputHash`](./language/advanced-attributes.md#adv-attr-outputHash) attribute.
|
||||
|
||||
- [binary cache]{#gloss-binary-cache}\
|
||||
A *binary cache* is a Nix store which uses a different format: its
|
||||
metadata and signatures are kept in `.narinfo` files rather than in a
|
||||
[Nix database]. This different format simplifies serving store objects
|
||||
over the network, but cannot host builds. Examples of binary caches
|
||||
include S3 buckets and the [NixOS binary cache](https://cache.nixos.org).
|
||||
- [store]{#gloss-store}
|
||||
|
||||
- [store path]{#gloss-store-path}\
|
||||
The location of a [store object] in the file system, i.e., an
|
||||
immediate child of the Nix store directory.
|
||||
The location in the file system where store objects live. Typically
|
||||
`/nix/store`.
|
||||
|
||||
Example: `/nix/store/a040m110amc4h71lds2jmr8qrkj2jhxd-git-2.38.1`
|
||||
From the perspective of the location where Nix is
|
||||
invoked, the Nix store can be referred to
|
||||
as a "_local_" or a "_remote_" one:
|
||||
|
||||
[store path]: #gloss-store-path
|
||||
+ A [local store]{#gloss-local-store} exists on the filesystem of
|
||||
the machine where Nix is invoked. You can use other
|
||||
local stores by passing the `--store` flag to the
|
||||
`nix` command. Local stores can be used for building derivations.
|
||||
|
||||
- [file system object]{#gloss-store-object}\
|
||||
The Nix data model for representing simplified file system data.
|
||||
+ A *remote store* exists anywhere other than the
|
||||
local filesystem. One example is the `/nix/store`
|
||||
directory on another machine, accessed via `ssh` or
|
||||
served by the `nix-serve` Perl script.
|
||||
|
||||
See [File System Object](@docroot@/architecture/file-system-object.md) for details.
|
||||
[store]: #gloss-store
|
||||
[local store]: #gloss-local-store
|
||||
|
||||
[file system object]: #gloss-file-system-object
|
||||
- [chroot store]{#gloss-chroot-store}
|
||||
|
||||
- [store object]{#gloss-store-object}\
|
||||
A [local store] whose canonical path is anything other than `/nix/store`.
|
||||
|
||||
A store object consists of a [file system object], [reference]s to other store objects, and other metadata.
|
||||
It can be referred to by a [store path].
|
||||
- [binary cache]{#gloss-binary-cache}
|
||||
|
||||
[store object]: #gloss-store-object
|
||||
A *binary cache* is a Nix store which uses a different format: its
|
||||
metadata and signatures are kept in `.narinfo` files rather than in a
|
||||
[Nix database]. This different format simplifies serving store objects
|
||||
over the network, but cannot host builds. Examples of binary caches
|
||||
include S3 buckets and the [NixOS binary cache](https://cache.nixos.org).
|
||||
|
||||
- [input-addressed store object]{#gloss-input-addressed-store-object}\
|
||||
A store object produced by building a
|
||||
non-[content-addressed](#gloss-content-addressed-derivation),
|
||||
non-[fixed-output](#gloss-fixed-output-derivation)
|
||||
derivation.
|
||||
- [store path]{#gloss-store-path}
|
||||
|
||||
- [output-addressed store object]{#gloss-output-addressed-store-object}\
|
||||
A [store object] whose [store path] is determined by its contents.
|
||||
This includes derivations, the outputs of [content-addressed derivations](#gloss-content-addressed-derivation), and the outputs of [fixed-output derivations](#gloss-fixed-output-derivation).
|
||||
The location of a [store object] in the file system, i.e., an
|
||||
immediate child of the Nix store directory.
|
||||
|
||||
- [substitute]{#gloss-substitute}\
|
||||
A substitute is a command invocation stored in the [Nix database] that
|
||||
describes how to build a store object, bypassing the normal build
|
||||
mechanism (i.e., derivations). Typically, the substitute builds the
|
||||
store object by downloading a pre-built version of the store object
|
||||
from some server.
|
||||
Example: `/nix/store/a040m110amc4h71lds2jmr8qrkj2jhxd-git-2.38.1`
|
||||
|
||||
- [substituter]{#gloss-substituter}\
|
||||
An additional [store]{#gloss-store} from which Nix can obtain store objects instead of building them.
|
||||
Often the substituter is a [binary cache](#gloss-binary-cache), but any store can serve as substituter.
|
||||
[store path]: #gloss-store-path
|
||||
|
||||
See the [`substituters` configuration option](./command-ref/conf-file.md#conf-substituters) for details.
|
||||
- [file system object]{#gloss-store-object}
|
||||
|
||||
[substituter]: #gloss-substituter
|
||||
The Nix data model for representing simplified file system data.
|
||||
|
||||
- [purity]{#gloss-purity}\
|
||||
The assumption that equal Nix derivations when run always produce
|
||||
the same output. This cannot be guaranteed in general (e.g., a
|
||||
builder can rely on external inputs such as the network or the
|
||||
system time) but the Nix model assumes it.
|
||||
See [File System Object](@docroot@/architecture/file-system-object.md) for details.
|
||||
|
||||
- [Nix database]{#gloss-nix-database}\
|
||||
An SQlite database to track [reference]s between [store object]s.
|
||||
This is an implementation detail of the [local store].
|
||||
[file system object]: #gloss-file-system-object
|
||||
|
||||
Default location: `/nix/var/nix/db`.
|
||||
- [store object]{#gloss-store-object}
|
||||
|
||||
[Nix database]: #gloss-nix-database
|
||||
|
||||
- [Nix expression]{#gloss-nix-expression}\
|
||||
A high-level description of software packages and compositions
|
||||
thereof. Deploying software using Nix entails writing Nix
|
||||
expressions for your packages. Nix expressions are translated to
|
||||
derivations that are stored in the Nix store. These derivations can
|
||||
then be built.
|
||||
A store object consists of a [file system object], [reference]s to other store objects, and other metadata.
|
||||
It can be referred to by a [store path].
|
||||
|
||||
- [reference]{#gloss-reference}\
|
||||
A [store object] `O` is said to have a *reference* to a store object `P` if a [store path] to `P` appears in the contents of `O`.
|
||||
[store object]: #gloss-store-object
|
||||
|
||||
Store objects can refer to both other store objects and themselves.
|
||||
References from a store object to itself are called *self-references*.
|
||||
References other than a self-reference must not form a cycle.
|
||||
- [input-addressed store object]{#gloss-input-addressed-store-object}
|
||||
|
||||
[reference]: #gloss-reference
|
||||
A store object produced by building a
|
||||
non-[content-addressed](#gloss-content-addressed-derivation),
|
||||
non-[fixed-output](#gloss-fixed-output-derivation)
|
||||
derivation.
|
||||
|
||||
- [reachable]{#gloss-reachable}\
|
||||
A store path `Q` is reachable from another store path `P` if `Q`
|
||||
is in the *closure* of the *references* relation.
|
||||
- [output-addressed store object]{#gloss-output-addressed-store-object}
|
||||
|
||||
- [closure]{#gloss-closure}\
|
||||
The closure of a store path is the set of store paths that are
|
||||
directly or indirectly “reachable” from that store path; that is,
|
||||
it’s the closure of the path under the *references* relation. For
|
||||
a package, the closure of its derivation is equivalent to the
|
||||
build-time dependencies, while the closure of its output path is
|
||||
equivalent to its runtime dependencies. For correct deployment it
|
||||
is necessary to deploy whole closures, since otherwise at runtime
|
||||
files could be missing. The command `nix-store --query --requisites ` prints out
|
||||
closures of store paths.
|
||||
A [store object] whose [store path] is determined by its contents.
|
||||
This includes derivations, the outputs of [content-addressed derivations](#gloss-content-addressed-derivation), and the outputs of [fixed-output derivations](#gloss-fixed-output-derivation).
|
||||
|
||||
As an example, if the [store object] at path `P` contains a [reference]
|
||||
to a store object at path `Q`, then `Q` is in the closure of `P`. Further, if `Q`
|
||||
references `R` then `R` is also in the closure of `P`.
|
||||
- [substitute]{#gloss-substitute}
|
||||
|
||||
[closure]: #gloss-closure
|
||||
A substitute is a command invocation stored in the [Nix database] that
|
||||
describes how to build a store object, bypassing the normal build
|
||||
mechanism (i.e., derivations). Typically, the substitute builds the
|
||||
store object by downloading a pre-built version of the store object
|
||||
from some server.
|
||||
|
||||
- [output path]{#gloss-output-path}\
|
||||
A [store path] produced by a [derivation].
|
||||
- [substituter]{#gloss-substituter}
|
||||
|
||||
[output path]: #gloss-output-path
|
||||
An additional [store]{#gloss-store} from which Nix can obtain store objects instead of building them.
|
||||
Often the substituter is a [binary cache](#gloss-binary-cache), but any store can serve as substituter.
|
||||
|
||||
- [deriver]{#gloss-deriver}\
|
||||
The [store derivation] that produced an [output path].
|
||||
See the [`substituters` configuration option](./command-ref/conf-file.md#conf-substituters) for details.
|
||||
|
||||
- [validity]{#gloss-validity}\
|
||||
A store path is valid if all [store object]s in its [closure] can be read from the [store].
|
||||
[substituter]: #gloss-substituter
|
||||
|
||||
For a [local store], this means:
|
||||
- The store path leads to an existing [store object] in that [store].
|
||||
- The store path is listed in the [Nix database] as being valid.
|
||||
- All paths in the store path's [closure] are valid.
|
||||
- [purity]{#gloss-purity}
|
||||
|
||||
[validity]: #gloss-validity
|
||||
The assumption that equal Nix derivations when run always produce
|
||||
the same output. This cannot be guaranteed in general (e.g., a
|
||||
builder can rely on external inputs such as the network or the
|
||||
system time) but the Nix model assumes it.
|
||||
|
||||
- [user environment]{#gloss-user-env}\
|
||||
An automatically generated store object that consists of a set of
|
||||
symlinks to “active” applications, i.e., other store paths. These
|
||||
are generated automatically by
|
||||
[`nix-env`](./command-ref/nix-env.md). See *profiles*.
|
||||
- [Nix database]{#gloss-nix-database}
|
||||
|
||||
- [profile]{#gloss-profile}\
|
||||
A symlink to the current *user environment* of a user, e.g.,
|
||||
`/nix/var/nix/profiles/default`.
|
||||
An SQlite database to track [reference]s between [store object]s.
|
||||
This is an implementation detail of the [local store].
|
||||
|
||||
- [installable]{#gloss-installable}\
|
||||
Something that can be realised in the Nix store.
|
||||
Default location: `/nix/var/nix/db`.
|
||||
|
||||
See [installables](./command-ref/new-cli/nix.md#installables) for [`nix` commands](./command-ref/new-cli/nix.md) (experimental) for details.
|
||||
[Nix database]: #gloss-nix-database
|
||||
|
||||
- [NAR]{#gloss-nar}\
|
||||
A *N*ix *AR*chive. This is a serialisation of a path in the Nix
|
||||
store. It can contain regular files, directories and symbolic
|
||||
links. NARs are generated and unpacked using `nix-store --dump`
|
||||
and `nix-store --restore`.
|
||||
- [Nix expression]{#gloss-nix-expression}
|
||||
|
||||
- [`∅`]{#gloss-emtpy-set}\
|
||||
The empty set symbol. In the context of profile history, this denotes a package is not present in a particular version of the profile.
|
||||
A high-level description of software packages and compositions
|
||||
thereof. Deploying software using Nix entails writing Nix
|
||||
expressions for your packages. Nix expressions are translated to
|
||||
derivations that are stored in the Nix store. These derivations can
|
||||
then be built.
|
||||
|
||||
- [`ε`]{#gloss-epsilon}\
|
||||
The epsilon symbol. In the context of a package, this means the version is empty. More precisely, the derivation does not have a version attribute.
|
||||
- [reference]{#gloss-reference}
|
||||
|
||||
- [string interpolation]{#gloss-string-interpolation}\
|
||||
Expanding expressions enclosed in `${ }` within a [string], [path], or [attribute name].
|
||||
A [store object] `O` is said to have a *reference* to a store object `P` if a [store path] to `P` appears in the contents of `O`.
|
||||
|
||||
See [String interpolation](./language/string-interpolation.md) for details.
|
||||
Store objects can refer to both other store objects and themselves.
|
||||
References from a store object to itself are called *self-references*.
|
||||
References other than a self-reference must not form a cycle.
|
||||
|
||||
[string]: ./language/values.md#type-string
|
||||
[path]: ./language/values.md#type-path
|
||||
[attribute name]: ./language/values.md#attribute-set
|
||||
[reference]: #gloss-reference
|
||||
|
||||
- [experimental feature]{#gloss-experimental-feature}\
|
||||
Not yet stabilized functionality guarded by named experimental feature flags.
|
||||
These flags are enabled or disabled with the [`experimental-features`](./command-ref/conf-file.html#conf-experimental-features) setting.
|
||||
- [reachable]{#gloss-reachable}
|
||||
|
||||
See the contribution guide on the [purpose and lifecycle of experimental feaures](@docroot@/contributing/experimental-features.md).
|
||||
A store path `Q` is reachable from another store path `P` if `Q`
|
||||
is in the *closure* of the *references* relation.
|
||||
|
||||
- [closure]{#gloss-closure}
|
||||
|
||||
The closure of a store path is the set of store paths that are
|
||||
directly or indirectly “reachable” from that store path; that is,
|
||||
it’s the closure of the path under the *references* relation. For
|
||||
a package, the closure of its derivation is equivalent to the
|
||||
build-time dependencies, while the closure of its output path is
|
||||
equivalent to its runtime dependencies. For correct deployment it
|
||||
is necessary to deploy whole closures, since otherwise at runtime
|
||||
files could be missing. The command `nix-store --query --requisites ` prints out
|
||||
closures of store paths.
|
||||
|
||||
As an example, if the [store object] at path `P` contains a [reference]
|
||||
to a store object at path `Q`, then `Q` is in the closure of `P`. Further, if `Q`
|
||||
references `R` then `R` is also in the closure of `P`.
|
||||
|
||||
[closure]: #gloss-closure
|
||||
|
||||
- [output path]{#gloss-output-path}
|
||||
|
||||
A [store path] produced by a [derivation].
|
||||
|
||||
[output path]: #gloss-output-path
|
||||
|
||||
- [deriver]{#gloss-deriver}
|
||||
|
||||
The [store derivation] that produced an [output path].
|
||||
|
||||
- [validity]{#gloss-validity}
|
||||
|
||||
A store path is valid if all [store object]s in its [closure] can be read from the [store].
|
||||
|
||||
For a [local store], this means:
|
||||
- The store path leads to an existing [store object] in that [store].
|
||||
- The store path is listed in the [Nix database] as being valid.
|
||||
- All paths in the store path's [closure] are valid.
|
||||
|
||||
[validity]: #gloss-validity
|
||||
|
||||
- [user environment]{#gloss-user-env}
|
||||
|
||||
An automatically generated store object that consists of a set of
|
||||
symlinks to “active” applications, i.e., other store paths. These
|
||||
are generated automatically by
|
||||
[`nix-env`](./command-ref/nix-env.md). See *profiles*.
|
||||
|
||||
- [profile]{#gloss-profile}
|
||||
|
||||
A symlink to the current *user environment* of a user, e.g.,
|
||||
`/nix/var/nix/profiles/default`.
|
||||
|
||||
- [installable]{#gloss-installable}
|
||||
|
||||
Something that can be realised in the Nix store.
|
||||
|
||||
See [installables](./command-ref/new-cli/nix.md#installables) for [`nix` commands](./command-ref/new-cli/nix.md) (experimental) for details.
|
||||
|
||||
- [NAR]{#gloss-nar}
|
||||
|
||||
A *N*ix *AR*chive. This is a serialisation of a path in the Nix
|
||||
store. It can contain regular files, directories and symbolic
|
||||
links. NARs are generated and unpacked using `nix-store --dump`
|
||||
and `nix-store --restore`.
|
||||
|
||||
- [`∅`]{#gloss-emtpy-set}
|
||||
|
||||
The empty set symbol. In the context of profile history, this denotes a package is not present in a particular version of the profile.
|
||||
|
||||
- [`ε`]{#gloss-epsilon}
|
||||
|
||||
The epsilon symbol. In the context of a package, this means the version is empty. More precisely, the derivation does not have a version attribute.
|
||||
|
||||
- [string interpolation]{#gloss-string-interpolation}
|
||||
|
||||
Expanding expressions enclosed in `${ }` within a [string], [path], or [attribute name].
|
||||
|
||||
See [String interpolation](./language/string-interpolation.md) for details.
|
||||
|
||||
[string]: ./language/values.md#type-string
|
||||
[path]: ./language/values.md#type-path
|
||||
[attribute name]: ./language/values.md#attribute-set
|
||||
|
||||
- [experimental feature]{#gloss-experimental-feature}
|
||||
|
||||
Not yet stabilized functionality guarded by named experimental feature flags.
|
||||
These flags are enabled or disabled with the [`experimental-features`](./command-ref/conf-file.html#conf-experimental-features) setting.
|
||||
|
||||
See the contribution guide on the [purpose and lifecycle of experimental feaures](@docroot@/contributing/experimental-features.md).
|
||||
|
|
|
|||
|
|
@ -20,8 +20,8 @@ Link: <flakeref>; rel="immutable"
|
|||
|
||||
(Note the required `<` and `>` characters around *flakeref*.)
|
||||
|
||||
*flakeref* must be a tarball flakeref. It can contain flake attributes
|
||||
such as `narHash`, `rev` and `revCount`. If `narHash` is included, its
|
||||
*flakeref* must be a tarball flakeref. It can contain the tarball flake attributes
|
||||
`narHash`, `rev`, `revCount` and `lastModified`. If `narHash` is included, its
|
||||
value must be the NAR hash of the unpacked tarball (as computed via
|
||||
`nix hash path`). Nix checks the contents of the returned tarball
|
||||
against the `narHash` attribute. The `rev` and `revCount` attributes
|
||||
|
|
|
|||
|
|
@ -23,6 +23,8 @@
|
|||
- Introduce a new [`outputOf`](@docroot@/language/builtins.md#builtins-outputOf) builtin.
|
||||
It is part of the [`dynamic-derivations`](@docroot@/contributing/experimental-features.md#xp-feature-dynamic-derivations) experimental feature.
|
||||
|
||||
- Flake follow paths at depths greater than 2 are now handled correctly, preventing "follows a non-existent input" errors.
|
||||
|
||||
- [`nix-store --query`](@docroot@/command-ref/nix-store/query.md) gained a new type of query: `--valid-derivers`. It returns all `.drv` files in the local store that *can be* used to build the output passed in argument.
|
||||
This is in contrast to `--deriver`, which returns the single `.drv` file that *was actually* used to build the output passed in argument. In case the output was substituted from a binary cache,
|
||||
this `.drv` file may only exist on said binary cache and not locally.
|
||||
|
|
|
|||
|
|
@ -19,10 +19,12 @@
|
|||
then ""
|
||||
else "pre${builtins.substring 0 8 (self.lastModifiedDate or self.lastModified or "19700101")}_${self.shortRev or "dirty"}";
|
||||
|
||||
linux32BitSystems = [ "i686-linux" ];
|
||||
linux64BitSystems = [ "x86_64-linux" "aarch64-linux" ];
|
||||
linuxSystems = linux64BitSystems ++ [ "i686-linux" ];
|
||||
systems = linuxSystems ++ [ "x86_64-darwin" "aarch64-darwin" ];
|
||||
|
||||
linuxSystems = linux32BitSystems ++ linux64BitSystems;
|
||||
darwinSystems = [ "x86_64-darwin" "aarch64-darwin" ];
|
||||
systems = linuxSystems ++ darwinSystems;
|
||||
|
||||
crossSystems = [ "armv6l-linux" "armv7l-linux" ];
|
||||
|
||||
stdenvs = [ "gccStdenv" "clangStdenv" "clang11Stdenv" "stdenv" "libcxxStdenv" "ccacheStdenv" ];
|
||||
|
|
|
|||
|
|
@ -345,7 +345,7 @@ void LockFile::check()
|
|||
|
||||
for (auto & [inputPath, input] : inputs) {
|
||||
if (auto follows = std::get_if<1>(&input)) {
|
||||
if (!follows->empty() && !get(inputs, *follows))
|
||||
if (!follows->empty() && !findInput(*follows))
|
||||
throw Error("input '%s' follows a non-existent input '%s'",
|
||||
printInputPath(inputPath),
|
||||
printInputPath(*follows));
|
||||
|
|
|
|||
|
|
@ -1520,15 +1520,25 @@ static RegisterPrimOp primop_storePath({
|
|||
|
||||
static void prim_pathExists(EvalState & state, const PosIdx pos, Value * * args, Value & v)
|
||||
{
|
||||
auto & arg = *args[0];
|
||||
|
||||
/* We don’t check the path right now, because we don’t want to
|
||||
throw if the path isn’t allowed, but just return false (and we
|
||||
can’t just catch the exception here because we still want to
|
||||
throw if something in the evaluation of `*args[0]` tries to
|
||||
throw if something in the evaluation of `arg` tries to
|
||||
access an unauthorized path). */
|
||||
auto path = realisePath(state, pos, *args[0], { .checkForPureEval = false });
|
||||
auto path = realisePath(state, pos, arg, { .checkForPureEval = false });
|
||||
|
||||
/* SourcePath doesn't know about trailing slash. */
|
||||
auto mustBeDir = arg.type() == nString && arg.str().ends_with("/");
|
||||
|
||||
try {
|
||||
v.mkBool(state.checkSourcePath(path).pathExists());
|
||||
auto checked = state.checkSourcePath(path);
|
||||
auto exists = checked.pathExists();
|
||||
if (exists && mustBeDir) {
|
||||
exists = checked.lstat().type == InputAccessor::tDirectory;
|
||||
}
|
||||
v.mkBool(exists);
|
||||
} catch (SysError & e) {
|
||||
/* Don't give away info from errors while canonicalising
|
||||
‘path’ in restricted mode. */
|
||||
|
|
@ -1843,7 +1853,7 @@ static void prim_outputOf(EvalState & state, const PosIdx pos, Value * * args, V
|
|||
{
|
||||
SingleDerivedPath drvPath = state.coerceToSingleDerivedPath(pos, *args[0], "while evaluating the first argument to builtins.outputOf");
|
||||
|
||||
std::string_view outputName = state.forceStringNoCtx(*args[1], pos, "while evaluating the second argument to builtins.outputOf");
|
||||
OutputNameView outputName = state.forceStringNoCtx(*args[1], pos, "while evaluating the second argument to builtins.outputOf");
|
||||
|
||||
state.mkSingleDerivedPathString(
|
||||
SingleDerivedPath::Built {
|
||||
|
|
|
|||
|
|
@ -232,7 +232,7 @@ struct CurlInputScheme : InputScheme
|
|||
if (type != inputType()) return {};
|
||||
|
||||
// FIXME: some of these only apply to TarballInputScheme.
|
||||
std::set<std::string> allowedNames = {"type", "url", "narHash", "name", "unpack", "rev", "revCount"};
|
||||
std::set<std::string> allowedNames = {"type", "url", "narHash", "name", "unpack", "rev", "revCount", "lastModified"};
|
||||
for (auto & [name, value] : attrs)
|
||||
if (!allowedNames.count(name))
|
||||
throw Error("unsupported %s input attribute '%s'", *type, name);
|
||||
|
|
@ -310,6 +310,9 @@ struct TarballInputScheme : CurlInputScheme
|
|||
input = immutableInput;
|
||||
}
|
||||
|
||||
if (result.lastModified && !input.attrs.contains("lastModified"))
|
||||
input.attrs.insert_or_assign("lastModified", uint64_t(result.lastModified));
|
||||
|
||||
return {result.tree.storePath, std::move(input)};
|
||||
}
|
||||
};
|
||||
|
|
|
|||
157
src/libstore/build/create-derivation-and-realise-goal.cc
Normal file
157
src/libstore/build/create-derivation-and-realise-goal.cc
Normal file
|
|
@ -0,0 +1,157 @@
|
|||
#include "create-derivation-and-realise-goal.hh"
|
||||
#include "worker.hh"
|
||||
|
||||
namespace nix {
|
||||
|
||||
CreateDerivationAndRealiseGoal::CreateDerivationAndRealiseGoal(ref<SingleDerivedPath> drvReq,
|
||||
const OutputsSpec & wantedOutputs, Worker & worker, BuildMode buildMode)
|
||||
: Goal(worker, DerivedPath::Built { .drvPath = drvReq, .outputs = wantedOutputs })
|
||||
, drvReq(drvReq)
|
||||
, wantedOutputs(wantedOutputs)
|
||||
, buildMode(buildMode)
|
||||
{
|
||||
state = &CreateDerivationAndRealiseGoal::getDerivation;
|
||||
name = fmt(
|
||||
"outer obtaining drv from '%s' and then building outputs %s",
|
||||
drvReq->to_string(worker.store),
|
||||
std::visit(overloaded {
|
||||
[&](const OutputsSpec::All) -> std::string {
|
||||
return "* (all of them)";
|
||||
},
|
||||
[&](const OutputsSpec::Names os) {
|
||||
return concatStringsSep(", ", quoteStrings(os));
|
||||
},
|
||||
}, wantedOutputs.raw));
|
||||
trace("created outer");
|
||||
|
||||
worker.updateProgress();
|
||||
}
|
||||
|
||||
|
||||
CreateDerivationAndRealiseGoal::~CreateDerivationAndRealiseGoal()
|
||||
{
|
||||
}
|
||||
|
||||
|
||||
static StorePath pathPartOfReq(const SingleDerivedPath & req)
|
||||
{
|
||||
return std::visit(overloaded {
|
||||
[&](const SingleDerivedPath::Opaque & bo) {
|
||||
return bo.path;
|
||||
},
|
||||
[&](const SingleDerivedPath::Built & bfd) {
|
||||
return pathPartOfReq(*bfd.drvPath);
|
||||
},
|
||||
}, req.raw());
|
||||
}
|
||||
|
||||
|
||||
std::string CreateDerivationAndRealiseGoal::key()
|
||||
{
|
||||
/* Ensure that derivations get built in order of their name,
|
||||
i.e. a derivation named "aardvark" always comes before "baboon". And
|
||||
substitution goals and inner derivation goals always happen before
|
||||
derivation goals (due to "b$"). */
|
||||
return "c$" + std::string(pathPartOfReq(*drvReq).name()) + "$" + drvReq->to_string(worker.store);
|
||||
}
|
||||
|
||||
|
||||
void CreateDerivationAndRealiseGoal::timedOut(Error && ex)
|
||||
{
|
||||
}
|
||||
|
||||
|
||||
void CreateDerivationAndRealiseGoal::work()
|
||||
{
|
||||
(this->*state)();
|
||||
}
|
||||
|
||||
|
||||
void CreateDerivationAndRealiseGoal::addWantedOutputs(const OutputsSpec & outputs)
|
||||
{
|
||||
/* If we already want all outputs, there is nothing to do. */
|
||||
auto newWanted = wantedOutputs.union_(outputs);
|
||||
bool needRestart = !newWanted.isSubsetOf(wantedOutputs);
|
||||
wantedOutputs = newWanted;
|
||||
|
||||
if (!needRestart) return;
|
||||
|
||||
if (!optDrvPath)
|
||||
// haven't started steps where the outputs matter yet
|
||||
return;
|
||||
worker.makeDerivationGoal(*optDrvPath, outputs, buildMode);
|
||||
}
|
||||
|
||||
|
||||
void CreateDerivationAndRealiseGoal::getDerivation()
|
||||
{
|
||||
trace("outer init");
|
||||
|
||||
/* The first thing to do is to make sure that the derivation
|
||||
exists. If it doesn't, it may be created through a
|
||||
substitute. */
|
||||
if (auto optDrvPath = [this]() -> std::optional<StorePath> {
|
||||
if (buildMode != bmNormal) return std::nullopt;
|
||||
|
||||
auto drvPath = StorePath::dummy;
|
||||
try {
|
||||
drvPath = resolveDerivedPath(worker.store, *drvReq);
|
||||
} catch (MissingRealisation) {
|
||||
return std::nullopt;
|
||||
}
|
||||
return worker.evalStore.isValidPath(drvPath) || worker.store.isValidPath(drvPath)
|
||||
? std::optional { drvPath }
|
||||
: std::nullopt;
|
||||
}()) {
|
||||
trace(fmt("already have drv '%s' for '%s', can go straight to building",
|
||||
worker.store.printStorePath(*optDrvPath),
|
||||
drvReq->to_string(worker.store)));
|
||||
|
||||
loadAndBuildDerivation();
|
||||
} else {
|
||||
trace("need to obtain drv we want to build");
|
||||
|
||||
addWaitee(worker.makeGoal(DerivedPath::fromSingle(*drvReq)));
|
||||
|
||||
state = &CreateDerivationAndRealiseGoal::loadAndBuildDerivation;
|
||||
if (waitees.empty()) work();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void CreateDerivationAndRealiseGoal::loadAndBuildDerivation()
|
||||
{
|
||||
trace("outer load and build derivation");
|
||||
|
||||
if (nrFailed != 0) {
|
||||
amDone(ecFailed, Error("cannot build missing derivation '%s'", drvReq->to_string(worker.store)));
|
||||
return;
|
||||
}
|
||||
|
||||
StorePath drvPath = resolveDerivedPath(worker.store, *drvReq);
|
||||
/* Build this step! */
|
||||
concreteDrvGoal = worker.makeDerivationGoal(drvPath, wantedOutputs, buildMode);
|
||||
addWaitee(upcast_goal(concreteDrvGoal));
|
||||
state = &CreateDerivationAndRealiseGoal::buildDone;
|
||||
optDrvPath = std::move(drvPath);
|
||||
if (waitees.empty()) work();
|
||||
}
|
||||
|
||||
|
||||
void CreateDerivationAndRealiseGoal::buildDone()
|
||||
{
|
||||
trace("outer build done");
|
||||
|
||||
buildResult = upcast_goal(concreteDrvGoal)->getBuildResult(DerivedPath::Built {
|
||||
.drvPath = drvReq,
|
||||
.outputs = wantedOutputs,
|
||||
});
|
||||
|
||||
if (buildResult.success())
|
||||
amDone(ecSuccess);
|
||||
else
|
||||
amDone(ecFailed, Error("building '%s' failed", drvReq->to_string(worker.store)));
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
96
src/libstore/build/create-derivation-and-realise-goal.hh
Normal file
96
src/libstore/build/create-derivation-and-realise-goal.hh
Normal file
|
|
@ -0,0 +1,96 @@
|
|||
#pragma once
|
||||
|
||||
#include "parsed-derivations.hh"
|
||||
#include "lock.hh"
|
||||
#include "store-api.hh"
|
||||
#include "pathlocks.hh"
|
||||
#include "goal.hh"
|
||||
|
||||
namespace nix {
|
||||
|
||||
struct DerivationGoal;
|
||||
|
||||
/**
|
||||
* This goal type is essentially the serial composition (like function
|
||||
* composition) of a goal for getting a derivation, and then a
|
||||
* `DerivationGoal` using the newly-obtained derivation.
|
||||
*
|
||||
* In the (currently experimental) general inductive case of derivations
|
||||
* that are themselves build outputs, that first goal will be *another*
|
||||
* `CreateDerivationAndRealiseGoal`. In the (much more common) base-case
|
||||
* where the derivation has no provence and is just referred to by
|
||||
* (content-addressed) store path, that first goal is a
|
||||
* `SubstitutionGoal`.
|
||||
*
|
||||
* If we already have the derivation (e.g. if the evalutator has created
|
||||
* the derivation locally and then instructured the store to build it),
|
||||
* we can skip the first goal entirely as a small optimization.
|
||||
*/
|
||||
struct CreateDerivationAndRealiseGoal : public Goal
|
||||
{
|
||||
/**
|
||||
* How to obtain a store path of the derivation to build.
|
||||
*/
|
||||
ref<SingleDerivedPath> drvReq;
|
||||
|
||||
/**
|
||||
* The path of the derivation, once obtained.
|
||||
**/
|
||||
std::optional<StorePath> optDrvPath;
|
||||
|
||||
/**
|
||||
* The goal for the corresponding concrete derivation.
|
||||
**/
|
||||
std::shared_ptr<DerivationGoal> concreteDrvGoal;
|
||||
|
||||
/**
|
||||
* The specific outputs that we need to build.
|
||||
*/
|
||||
OutputsSpec wantedOutputs;
|
||||
|
||||
typedef void (CreateDerivationAndRealiseGoal::*GoalState)();
|
||||
GoalState state;
|
||||
|
||||
/**
|
||||
* The final output paths of the build.
|
||||
*
|
||||
* - For input-addressed derivations, always the precomputed paths
|
||||
*
|
||||
* - For content-addressed derivations, calcuated from whatever the
|
||||
* hash ends up being. (Note that fixed outputs derivations that
|
||||
* produce the "wrong" output still install that data under its
|
||||
* true content-address.)
|
||||
*/
|
||||
OutputPathMap finalOutputs;
|
||||
|
||||
BuildMode buildMode;
|
||||
|
||||
CreateDerivationAndRealiseGoal(ref<SingleDerivedPath> drvReq,
|
||||
const OutputsSpec & wantedOutputs, Worker & worker,
|
||||
BuildMode buildMode = bmNormal);
|
||||
virtual ~CreateDerivationAndRealiseGoal();
|
||||
|
||||
void timedOut(Error && ex) override;
|
||||
|
||||
std::string key() override;
|
||||
|
||||
void work() override;
|
||||
|
||||
/**
|
||||
* Add wanted outputs to an already existing derivation goal.
|
||||
*/
|
||||
void addWantedOutputs(const OutputsSpec & outputs);
|
||||
|
||||
/**
|
||||
* The states.
|
||||
*/
|
||||
void getDerivation();
|
||||
void loadAndBuildDerivation();
|
||||
void buildDone();
|
||||
|
||||
JobCategory jobCategory() const override {
|
||||
return JobCategory::Administration;
|
||||
};
|
||||
};
|
||||
|
||||
}
|
||||
|
|
@ -71,7 +71,7 @@ DerivationGoal::DerivationGoal(const StorePath & drvPath,
|
|||
, wantedOutputs(wantedOutputs)
|
||||
, buildMode(buildMode)
|
||||
{
|
||||
state = &DerivationGoal::getDerivation;
|
||||
state = &DerivationGoal::loadDerivation;
|
||||
name = fmt(
|
||||
"building of '%s' from .drv file",
|
||||
DerivedPath::Built { makeConstantStorePathRef(drvPath), wantedOutputs }.to_string(worker.store));
|
||||
|
|
@ -164,24 +164,6 @@ void DerivationGoal::addWantedOutputs(const OutputsSpec & outputs)
|
|||
}
|
||||
|
||||
|
||||
void DerivationGoal::getDerivation()
|
||||
{
|
||||
trace("init");
|
||||
|
||||
/* The first thing to do is to make sure that the derivation
|
||||
exists. If it doesn't, it may be created through a
|
||||
substitute. */
|
||||
if (buildMode == bmNormal && worker.evalStore.isValidPath(drvPath)) {
|
||||
loadDerivation();
|
||||
return;
|
||||
}
|
||||
|
||||
addWaitee(upcast_goal(worker.makePathSubstitutionGoal(drvPath)));
|
||||
|
||||
state = &DerivationGoal::loadDerivation;
|
||||
}
|
||||
|
||||
|
||||
void DerivationGoal::loadDerivation()
|
||||
{
|
||||
trace("loading derivation");
|
||||
|
|
@ -380,7 +362,12 @@ void DerivationGoal::gaveUpOnSubstitution()
|
|||
worker.store.printStorePath(i.first));
|
||||
}
|
||||
|
||||
addWaitee(worker.makeDerivationGoal(i.first, i.second, buildMode == bmRepair ? bmRepair : bmNormal));
|
||||
addWaitee(worker.makeGoal(
|
||||
DerivedPath::Built {
|
||||
.drvPath = makeConstantStorePathRef(i.first),
|
||||
.outputs = i.second,
|
||||
},
|
||||
buildMode == bmRepair ? bmRepair : bmNormal));
|
||||
}
|
||||
|
||||
/* Copy the input sources from the eval store to the build
|
||||
|
|
@ -452,7 +439,12 @@ void DerivationGoal::repairClosure()
|
|||
if (drvPath2 == outputsToDrv.end())
|
||||
addWaitee(upcast_goal(worker.makePathSubstitutionGoal(i, Repair)));
|
||||
else
|
||||
addWaitee(worker.makeDerivationGoal(drvPath2->second, OutputsSpec::All(), bmRepair));
|
||||
addWaitee(worker.makeGoal(
|
||||
DerivedPath::Built {
|
||||
.drvPath = makeConstantStorePathRef(drvPath2->second),
|
||||
.outputs = OutputsSpec::All { },
|
||||
},
|
||||
bmRepair));
|
||||
}
|
||||
|
||||
if (waitees.empty()) {
|
||||
|
|
@ -1483,7 +1475,7 @@ void DerivationGoal::waiteeDone(GoalPtr waitee, ExitCode result)
|
|||
if (!useDerivation) return;
|
||||
auto & fullDrv = *dynamic_cast<Derivation *>(drv.get());
|
||||
|
||||
auto * dg = dynamic_cast<DerivationGoal *>(&*waitee);
|
||||
auto * dg = tryGetConcreteDrvGoal(waitee);
|
||||
if (!dg) return;
|
||||
|
||||
auto outputs = fullDrv.inputDrvs.find(dg->drvPath);
|
||||
|
|
|
|||
|
|
@ -50,6 +50,13 @@ struct InitialOutput {
|
|||
std::optional<InitialOutputStatus> known;
|
||||
};
|
||||
|
||||
/**
|
||||
* A goal for building some or all of the outputs of a derivation.
|
||||
*
|
||||
* The derivation must already be present, either in the store in a drv
|
||||
* or in memory. If the derivation itself needs to be gotten first, a
|
||||
* `CreateDerivationAndRealiseGoal` goal must be used instead.
|
||||
*/
|
||||
struct DerivationGoal : public Goal
|
||||
{
|
||||
/**
|
||||
|
|
@ -66,8 +73,7 @@ struct DerivationGoal : public Goal
|
|||
std::shared_ptr<DerivationGoal> resolvedDrvGoal;
|
||||
|
||||
/**
|
||||
* The specific outputs that we need to build. Empty means all of
|
||||
* them.
|
||||
* The specific outputs that we need to build.
|
||||
*/
|
||||
OutputsSpec wantedOutputs;
|
||||
|
||||
|
|
@ -229,7 +235,6 @@ struct DerivationGoal : public Goal
|
|||
/**
|
||||
* The states.
|
||||
*/
|
||||
void getDerivation();
|
||||
void loadDerivation();
|
||||
void haveDerivation();
|
||||
void outputsSubstitutionTried();
|
||||
|
|
@ -334,7 +339,9 @@ struct DerivationGoal : public Goal
|
|||
|
||||
StorePathSet exportReferences(const StorePathSet & storePaths);
|
||||
|
||||
JobCategory jobCategory() override { return JobCategory::Build; };
|
||||
JobCategory jobCategory() const override {
|
||||
return JobCategory::Build;
|
||||
};
|
||||
};
|
||||
|
||||
MakeError(NotDeterministic, BuildError);
|
||||
|
|
|
|||
|
|
@ -73,7 +73,9 @@ public:
|
|||
void work() override;
|
||||
void handleEOF(int fd) override;
|
||||
|
||||
JobCategory jobCategory() override { return JobCategory::Substitution; };
|
||||
JobCategory jobCategory() const override {
|
||||
return JobCategory::Substitution;
|
||||
};
|
||||
};
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,5 +1,6 @@
|
|||
#include "worker.hh"
|
||||
#include "substitution-goal.hh"
|
||||
#include "create-derivation-and-realise-goal.hh"
|
||||
#include "derivation-goal.hh"
|
||||
#include "local-store.hh"
|
||||
|
||||
|
|
@ -15,7 +16,7 @@ void Store::buildPaths(const std::vector<DerivedPath> & reqs, BuildMode buildMod
|
|||
|
||||
worker.run(goals);
|
||||
|
||||
StorePathSet failed;
|
||||
StringSet failed;
|
||||
std::optional<Error> ex;
|
||||
for (auto & i : goals) {
|
||||
if (i->ex) {
|
||||
|
|
@ -25,8 +26,10 @@ void Store::buildPaths(const std::vector<DerivedPath> & reqs, BuildMode buildMod
|
|||
ex = std::move(i->ex);
|
||||
}
|
||||
if (i->exitCode != Goal::ecSuccess) {
|
||||
if (auto i2 = dynamic_cast<DerivationGoal *>(i.get())) failed.insert(i2->drvPath);
|
||||
else if (auto i2 = dynamic_cast<PathSubstitutionGoal *>(i.get())) failed.insert(i2->storePath);
|
||||
if (auto i2 = dynamic_cast<CreateDerivationAndRealiseGoal *>(i.get()))
|
||||
failed.insert(i2->drvReq->to_string(*this));
|
||||
else if (auto i2 = dynamic_cast<PathSubstitutionGoal *>(i.get()))
|
||||
failed.insert(printStorePath(i2->storePath));
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -35,7 +38,7 @@ void Store::buildPaths(const std::vector<DerivedPath> & reqs, BuildMode buildMod
|
|||
throw std::move(*ex);
|
||||
} else if (!failed.empty()) {
|
||||
if (ex) logError(ex->info());
|
||||
throw Error(worker.failingExitStatus(), "build of %s failed", showPaths(failed));
|
||||
throw Error(worker.failingExitStatus(), "build of %s failed", concatStringsSep(", ", quoteStrings(failed)));
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -124,8 +127,11 @@ void Store::repairPath(const StorePath & path)
|
|||
auto info = queryPathInfo(path);
|
||||
if (info->deriver && isValidPath(*info->deriver)) {
|
||||
goals.clear();
|
||||
// FIXME: Should just build the specific output we need.
|
||||
goals.insert(worker.makeDerivationGoal(*info->deriver, OutputsSpec::All { }, bmRepair));
|
||||
goals.insert(worker.makeGoal(DerivedPath::Built {
|
||||
.drvPath = makeConstantStorePathRef(*info->deriver),
|
||||
// FIXME: Should just build the specific output we need.
|
||||
.outputs = OutputsSpec::All { },
|
||||
}, bmRepair));
|
||||
worker.run(goals);
|
||||
} else
|
||||
throw Error(worker.failingExitStatus(), "cannot repair path '%s'", printStorePath(path));
|
||||
|
|
|
|||
|
|
@ -11,7 +11,7 @@ bool CompareGoalPtrs::operator() (const GoalPtr & a, const GoalPtr & b) const {
|
|||
}
|
||||
|
||||
|
||||
BuildResult Goal::getBuildResult(const DerivedPath & req) {
|
||||
BuildResult Goal::getBuildResult(const DerivedPath & req) const {
|
||||
BuildResult res { buildResult };
|
||||
|
||||
if (auto pbp = std::get_if<DerivedPath::Built>(&req)) {
|
||||
|
|
|
|||
|
|
@ -41,8 +41,24 @@ typedef std::map<StorePath, WeakGoalPtr> WeakGoalMap;
|
|||
* of each category in parallel.
|
||||
*/
|
||||
enum struct JobCategory {
|
||||
/**
|
||||
* A build of a derivation; it will use CPU and disk resources.
|
||||
*/
|
||||
Build,
|
||||
/**
|
||||
* A substitution an arbitrary store object; it will use network resources.
|
||||
*/
|
||||
Substitution,
|
||||
/**
|
||||
* A goal that does no "real" work by itself, and just exists to depend on
|
||||
* other goals which *do* do real work. These goals therefore are not
|
||||
* limited.
|
||||
*
|
||||
* These goals cannot infinitely create themselves, so there is no risk of
|
||||
* a "fork bomb" type situation (which would be a problem even though the
|
||||
* goal do no real work) either.
|
||||
*/
|
||||
Administration,
|
||||
};
|
||||
|
||||
struct Goal : public std::enable_shared_from_this<Goal>
|
||||
|
|
@ -110,7 +126,7 @@ public:
|
|||
* sake of both privacy and determinism, and this "safe accessor"
|
||||
* ensures we don't.
|
||||
*/
|
||||
BuildResult getBuildResult(const DerivedPath &);
|
||||
BuildResult getBuildResult(const DerivedPath &) const;
|
||||
|
||||
/**
|
||||
* Exception containing an error message, if any.
|
||||
|
|
@ -144,7 +160,7 @@ public:
|
|||
|
||||
void trace(std::string_view s);
|
||||
|
||||
std::string getName()
|
||||
std::string getName() const
|
||||
{
|
||||
return name;
|
||||
}
|
||||
|
|
@ -166,7 +182,7 @@ public:
|
|||
* @brief Hint for the scheduler, which concurrency limit applies.
|
||||
* @see JobCategory
|
||||
*/
|
||||
virtual JobCategory jobCategory() = 0;
|
||||
virtual JobCategory jobCategory() const = 0;
|
||||
};
|
||||
|
||||
void addToWeakGoals(WeakGoals & goals, GoalPtr p);
|
||||
|
|
|
|||
|
|
@ -2955,7 +2955,7 @@ bool LocalDerivationGoal::isReadDesc(int fd)
|
|||
}
|
||||
|
||||
|
||||
StorePath LocalDerivationGoal::makeFallbackPath(std::string_view outputName)
|
||||
StorePath LocalDerivationGoal::makeFallbackPath(OutputNameView outputName)
|
||||
{
|
||||
return worker.store.makeStorePath(
|
||||
"rewrite:" + std::string(drvPath.to_string()) + ":name:" + std::string(outputName),
|
||||
|
|
|
|||
|
|
@ -297,7 +297,7 @@ struct LocalDerivationGoal : public DerivationGoal
|
|||
* @todo Add option to randomize, so we can audit whether our
|
||||
* rewrites caught everything
|
||||
*/
|
||||
StorePath makeFallbackPath(std::string_view outputName);
|
||||
StorePath makeFallbackPath(OutputNameView outputName);
|
||||
};
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -117,7 +117,9 @@ public:
|
|||
/* Called by destructor, can't be overridden */
|
||||
void cleanup() override final;
|
||||
|
||||
JobCategory jobCategory() override { return JobCategory::Substitution; };
|
||||
JobCategory jobCategory() const override {
|
||||
return JobCategory::Substitution;
|
||||
};
|
||||
};
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -2,6 +2,7 @@
|
|||
#include "worker.hh"
|
||||
#include "substitution-goal.hh"
|
||||
#include "drv-output-substitution-goal.hh"
|
||||
#include "create-derivation-and-realise-goal.hh"
|
||||
#include "local-derivation-goal.hh"
|
||||
#include "hook-instance.hh"
|
||||
|
||||
|
|
@ -41,6 +42,24 @@ Worker::~Worker()
|
|||
}
|
||||
|
||||
|
||||
std::shared_ptr<CreateDerivationAndRealiseGoal> Worker::makeCreateDerivationAndRealiseGoal(
|
||||
ref<SingleDerivedPath> drvReq,
|
||||
const OutputsSpec & wantedOutputs,
|
||||
BuildMode buildMode)
|
||||
{
|
||||
std::weak_ptr<CreateDerivationAndRealiseGoal> & goal_weak = outerDerivationGoals.ensureSlot(*drvReq).value;
|
||||
std::shared_ptr<CreateDerivationAndRealiseGoal> goal = goal_weak.lock();
|
||||
if (!goal) {
|
||||
goal = std::make_shared<CreateDerivationAndRealiseGoal>(drvReq, wantedOutputs, *this, buildMode);
|
||||
goal_weak = goal;
|
||||
wakeUp(goal);
|
||||
} else {
|
||||
goal->addWantedOutputs(wantedOutputs);
|
||||
}
|
||||
return goal;
|
||||
}
|
||||
|
||||
|
||||
std::shared_ptr<DerivationGoal> Worker::makeDerivationGoalCommon(
|
||||
const StorePath & drvPath,
|
||||
const OutputsSpec & wantedOutputs,
|
||||
|
|
@ -111,10 +130,7 @@ GoalPtr Worker::makeGoal(const DerivedPath & req, BuildMode buildMode)
|
|||
{
|
||||
return std::visit(overloaded {
|
||||
[&](const DerivedPath::Built & bfd) -> GoalPtr {
|
||||
if (auto bop = std::get_if<DerivedPath::Opaque>(&*bfd.drvPath))
|
||||
return makeDerivationGoal(bop->path, bfd.outputs, buildMode);
|
||||
else
|
||||
throw UnimplementedError("Building dynamic derivations in one shot is not yet implemented.");
|
||||
return makeCreateDerivationAndRealiseGoal(bfd.drvPath, bfd.outputs, buildMode);
|
||||
},
|
||||
[&](const DerivedPath::Opaque & bo) -> GoalPtr {
|
||||
return makePathSubstitutionGoal(bo.path, buildMode == bmRepair ? Repair : NoRepair);
|
||||
|
|
@ -123,24 +139,46 @@ GoalPtr Worker::makeGoal(const DerivedPath & req, BuildMode buildMode)
|
|||
}
|
||||
|
||||
|
||||
template<typename K, typename V, typename F>
|
||||
static void cullMap(std::map<K, V> & goalMap, F f)
|
||||
{
|
||||
for (auto i = goalMap.begin(); i != goalMap.end();)
|
||||
if (!f(i->second))
|
||||
i = goalMap.erase(i);
|
||||
else ++i;
|
||||
}
|
||||
|
||||
|
||||
template<typename K, typename G>
|
||||
static void removeGoal(std::shared_ptr<G> goal, std::map<K, std::weak_ptr<G>> & goalMap)
|
||||
{
|
||||
/* !!! inefficient */
|
||||
for (auto i = goalMap.begin();
|
||||
i != goalMap.end(); )
|
||||
if (i->second.lock() == goal) {
|
||||
auto j = i; ++j;
|
||||
goalMap.erase(i);
|
||||
i = j;
|
||||
}
|
||||
else ++i;
|
||||
cullMap(goalMap, [&](const std::weak_ptr<G> & gp) -> bool {
|
||||
return gp.lock() != goal;
|
||||
});
|
||||
}
|
||||
|
||||
template<typename K>
|
||||
static void removeGoal(std::shared_ptr<CreateDerivationAndRealiseGoal> goal, std::map<K, DerivedPathMap<std::weak_ptr<CreateDerivationAndRealiseGoal>>::ChildNode> & goalMap);
|
||||
|
||||
template<typename K>
|
||||
static void removeGoal(std::shared_ptr<CreateDerivationAndRealiseGoal> goal, std::map<K, DerivedPathMap<std::weak_ptr<CreateDerivationAndRealiseGoal>>::ChildNode> & goalMap)
|
||||
{
|
||||
/* !!! inefficient */
|
||||
cullMap(goalMap, [&](DerivedPathMap<std::weak_ptr<CreateDerivationAndRealiseGoal>>::ChildNode & node) -> bool {
|
||||
if (node.value.lock() == goal)
|
||||
node.value.reset();
|
||||
removeGoal(goal, node.childMap);
|
||||
return !node.value.expired() || !node.childMap.empty();
|
||||
});
|
||||
}
|
||||
|
||||
|
||||
void Worker::removeGoal(GoalPtr goal)
|
||||
{
|
||||
if (auto drvGoal = std::dynamic_pointer_cast<DerivationGoal>(goal))
|
||||
if (auto drvGoal = std::dynamic_pointer_cast<CreateDerivationAndRealiseGoal>(goal))
|
||||
nix::removeGoal(drvGoal, outerDerivationGoals.map);
|
||||
else if (auto drvGoal = std::dynamic_pointer_cast<DerivationGoal>(goal))
|
||||
nix::removeGoal(drvGoal, derivationGoals);
|
||||
else if (auto subGoal = std::dynamic_pointer_cast<PathSubstitutionGoal>(goal))
|
||||
nix::removeGoal(subGoal, substitutionGoals);
|
||||
|
|
@ -198,8 +236,19 @@ void Worker::childStarted(GoalPtr goal, const std::set<int> & fds,
|
|||
child.respectTimeouts = respectTimeouts;
|
||||
children.emplace_back(child);
|
||||
if (inBuildSlot) {
|
||||
if (goal->jobCategory() == JobCategory::Substitution) nrSubstitutions++;
|
||||
else nrLocalBuilds++;
|
||||
switch (goal->jobCategory()) {
|
||||
case JobCategory::Substitution:
|
||||
nrSubstitutions++;
|
||||
break;
|
||||
case JobCategory::Build:
|
||||
nrLocalBuilds++;
|
||||
break;
|
||||
case JobCategory::Administration:
|
||||
/* Intentionally not limited, see docs */
|
||||
break;
|
||||
default:
|
||||
abort();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -211,12 +260,20 @@ void Worker::childTerminated(Goal * goal, bool wakeSleepers)
|
|||
if (i == children.end()) return;
|
||||
|
||||
if (i->inBuildSlot) {
|
||||
if (goal->jobCategory() == JobCategory::Substitution) {
|
||||
switch (goal->jobCategory()) {
|
||||
case JobCategory::Substitution:
|
||||
assert(nrSubstitutions > 0);
|
||||
nrSubstitutions--;
|
||||
} else {
|
||||
break;
|
||||
case JobCategory::Build:
|
||||
assert(nrLocalBuilds > 0);
|
||||
nrLocalBuilds--;
|
||||
break;
|
||||
case JobCategory::Administration:
|
||||
/* Intentionally not limited, see docs */
|
||||
break;
|
||||
default:
|
||||
abort();
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -267,9 +324,9 @@ void Worker::run(const Goals & _topGoals)
|
|||
|
||||
for (auto & i : _topGoals) {
|
||||
topGoals.insert(i);
|
||||
if (auto goal = dynamic_cast<DerivationGoal *>(i.get())) {
|
||||
if (auto goal = dynamic_cast<CreateDerivationAndRealiseGoal *>(i.get())) {
|
||||
topPaths.push_back(DerivedPath::Built {
|
||||
.drvPath = makeConstantStorePathRef(goal->drvPath),
|
||||
.drvPath = goal->drvReq,
|
||||
.outputs = goal->wantedOutputs,
|
||||
});
|
||||
} else if (auto goal = dynamic_cast<PathSubstitutionGoal *>(i.get())) {
|
||||
|
|
@ -522,11 +579,26 @@ void Worker::markContentsGood(const StorePath & path)
|
|||
}
|
||||
|
||||
|
||||
GoalPtr upcast_goal(std::shared_ptr<PathSubstitutionGoal> subGoal) {
|
||||
return subGoal;
|
||||
}
|
||||
GoalPtr upcast_goal(std::shared_ptr<DrvOutputSubstitutionGoal> subGoal) {
|
||||
GoalPtr upcast_goal(std::shared_ptr<PathSubstitutionGoal> subGoal)
|
||||
{
|
||||
return subGoal;
|
||||
}
|
||||
|
||||
GoalPtr upcast_goal(std::shared_ptr<DrvOutputSubstitutionGoal> subGoal)
|
||||
{
|
||||
return subGoal;
|
||||
}
|
||||
|
||||
GoalPtr upcast_goal(std::shared_ptr<DerivationGoal> subGoal)
|
||||
{
|
||||
return subGoal;
|
||||
}
|
||||
|
||||
const DerivationGoal * tryGetConcreteDrvGoal(GoalPtr waitee)
|
||||
{
|
||||
auto * odg = dynamic_cast<CreateDerivationAndRealiseGoal *>(&*waitee);
|
||||
if (!odg) return nullptr;
|
||||
return &*odg->concreteDrvGoal;
|
||||
}
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -4,6 +4,7 @@
|
|||
#include "types.hh"
|
||||
#include "lock.hh"
|
||||
#include "store-api.hh"
|
||||
#include "derived-path-map.hh"
|
||||
#include "goal.hh"
|
||||
#include "realisation.hh"
|
||||
|
||||
|
|
@ -13,6 +14,7 @@
|
|||
namespace nix {
|
||||
|
||||
/* Forward definition. */
|
||||
struct CreateDerivationAndRealiseGoal;
|
||||
struct DerivationGoal;
|
||||
struct PathSubstitutionGoal;
|
||||
class DrvOutputSubstitutionGoal;
|
||||
|
|
@ -31,9 +33,23 @@ class DrvOutputSubstitutionGoal;
|
|||
*/
|
||||
GoalPtr upcast_goal(std::shared_ptr<PathSubstitutionGoal> subGoal);
|
||||
GoalPtr upcast_goal(std::shared_ptr<DrvOutputSubstitutionGoal> subGoal);
|
||||
GoalPtr upcast_goal(std::shared_ptr<DerivationGoal> subGoal);
|
||||
|
||||
typedef std::chrono::time_point<std::chrono::steady_clock> steady_time_point;
|
||||
|
||||
/**
|
||||
* The current implementation of impure derivations has
|
||||
* `DerivationGoal`s accumulate realisations from their waitees.
|
||||
* Unfortunately, `DerivationGoal`s don't directly depend on other
|
||||
* goals, but instead depend on `CreateDerivationAndRealiseGoal`s.
|
||||
*
|
||||
* We try not to share any of the details of any goal type with any
|
||||
* other, for sake of modularity and quicker rebuilds. This means we
|
||||
* cannot "just" downcast and fish out the field. So as an escape hatch,
|
||||
* we have made the function, written in `worker.cc` where all the goal
|
||||
* types are visible, and use it instead.
|
||||
*/
|
||||
const DerivationGoal * tryGetConcreteDrvGoal(GoalPtr waitee);
|
||||
|
||||
/**
|
||||
* A mapping used to remember for each child process to what goal it
|
||||
|
|
@ -102,6 +118,9 @@ private:
|
|||
* Maps used to prevent multiple instantiations of a goal for the
|
||||
* same derivation / path.
|
||||
*/
|
||||
|
||||
DerivedPathMap<std::weak_ptr<CreateDerivationAndRealiseGoal>> outerDerivationGoals;
|
||||
|
||||
std::map<StorePath, std::weak_ptr<DerivationGoal>> derivationGoals;
|
||||
std::map<StorePath, std::weak_ptr<PathSubstitutionGoal>> substitutionGoals;
|
||||
std::map<DrvOutput, std::weak_ptr<DrvOutputSubstitutionGoal>> drvOutputSubstitutionGoals;
|
||||
|
|
@ -189,6 +208,9 @@ public:
|
|||
* @ref DerivationGoal "derivation goal"
|
||||
*/
|
||||
private:
|
||||
std::shared_ptr<CreateDerivationAndRealiseGoal> makeCreateDerivationAndRealiseGoal(
|
||||
ref<SingleDerivedPath> drvPath,
|
||||
const OutputsSpec & wantedOutputs, BuildMode buildMode = bmNormal);
|
||||
std::shared_ptr<DerivationGoal> makeDerivationGoalCommon(
|
||||
const StorePath & drvPath, const OutputsSpec & wantedOutputs,
|
||||
std::function<std::shared_ptr<DerivationGoal>()> mkDrvGoal);
|
||||
|
|
|
|||
|
|
@ -12,7 +12,7 @@
|
|||
|
||||
namespace nix {
|
||||
|
||||
std::optional<StorePath> DerivationOutput::path(const Store & store, std::string_view drvName, std::string_view outputName) const
|
||||
std::optional<StorePath> DerivationOutput::path(const Store & store, std::string_view drvName, OutputNameView outputName) const
|
||||
{
|
||||
return std::visit(overloaded {
|
||||
[](const DerivationOutput::InputAddressed & doi) -> std::optional<StorePath> {
|
||||
|
|
@ -36,7 +36,7 @@ std::optional<StorePath> DerivationOutput::path(const Store & store, std::string
|
|||
}
|
||||
|
||||
|
||||
StorePath DerivationOutput::CAFixed::path(const Store & store, std::string_view drvName, std::string_view outputName) const
|
||||
StorePath DerivationOutput::CAFixed::path(const Store & store, std::string_view drvName, OutputNameView outputName) const
|
||||
{
|
||||
return store.makeFixedOutputPathFromCA(
|
||||
outputPathName(drvName, outputName),
|
||||
|
|
@ -466,7 +466,7 @@ bool isDerivation(std::string_view fileName)
|
|||
}
|
||||
|
||||
|
||||
std::string outputPathName(std::string_view drvName, std::string_view outputName) {
|
||||
std::string outputPathName(std::string_view drvName, OutputNameView outputName) {
|
||||
std::string res { drvName };
|
||||
if (outputName != "out") {
|
||||
res += "-";
|
||||
|
|
@ -810,7 +810,7 @@ void writeDerivation(Sink & out, const Store & store, const BasicDerivation & dr
|
|||
}
|
||||
|
||||
|
||||
std::string hashPlaceholder(const std::string_view outputName)
|
||||
std::string hashPlaceholder(const OutputNameView outputName)
|
||||
{
|
||||
// FIXME: memoize?
|
||||
return "/" + hashString(htSHA256, concatStrings("nix-output:", outputName)).to_string(Base32, false);
|
||||
|
|
@ -963,7 +963,7 @@ void Derivation::checkInvariants(Store & store, const StorePath & drvPath) const
|
|||
const Hash impureOutputHash = hashString(htSHA256, "impure");
|
||||
|
||||
nlohmann::json DerivationOutput::toJSON(
|
||||
const Store & store, std::string_view drvName, std::string_view outputName) const
|
||||
const Store & store, std::string_view drvName, OutputNameView outputName) const
|
||||
{
|
||||
nlohmann::json res = nlohmann::json::object();
|
||||
std::visit(overloaded {
|
||||
|
|
@ -990,7 +990,7 @@ nlohmann::json DerivationOutput::toJSON(
|
|||
|
||||
|
||||
DerivationOutput DerivationOutput::fromJSON(
|
||||
const Store & store, std::string_view drvName, std::string_view outputName,
|
||||
const Store & store, std::string_view drvName, OutputNameView outputName,
|
||||
const nlohmann::json & _json,
|
||||
const ExperimentalFeatureSettings & xpSettings)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -55,7 +55,7 @@ struct DerivationOutput
|
|||
* @param drvName The name of the derivation this is an output of, without the `.drv`.
|
||||
* @param outputName The name of this output.
|
||||
*/
|
||||
StorePath path(const Store & store, std::string_view drvName, std::string_view outputName) const;
|
||||
StorePath path(const Store & store, std::string_view drvName, OutputNameView outputName) const;
|
||||
|
||||
GENERATE_CMP(CAFixed, me->ca);
|
||||
};
|
||||
|
|
@ -132,19 +132,19 @@ struct DerivationOutput
|
|||
* the safer interface provided by
|
||||
* BasicDerivation::outputsAndOptPaths
|
||||
*/
|
||||
std::optional<StorePath> path(const Store & store, std::string_view drvName, std::string_view outputName) const;
|
||||
std::optional<StorePath> path(const Store & store, std::string_view drvName, OutputNameView outputName) const;
|
||||
|
||||
nlohmann::json toJSON(
|
||||
const Store & store,
|
||||
std::string_view drvName,
|
||||
std::string_view outputName) const;
|
||||
OutputNameView outputName) const;
|
||||
/**
|
||||
* @param xpSettings Stop-gap to avoid globals during unit tests.
|
||||
*/
|
||||
static DerivationOutput fromJSON(
|
||||
const Store & store,
|
||||
std::string_view drvName,
|
||||
std::string_view outputName,
|
||||
OutputNameView outputName,
|
||||
const nlohmann::json & json,
|
||||
const ExperimentalFeatureSettings & xpSettings = experimentalFeatureSettings);
|
||||
};
|
||||
|
|
@ -405,7 +405,7 @@ bool isDerivation(std::string_view fileName);
|
|||
* This is usually <drv-name>-<output-name>, but is just <drv-name> when
|
||||
* the output name is "out".
|
||||
*/
|
||||
std::string outputPathName(std::string_view drvName, std::string_view outputName);
|
||||
std::string outputPathName(std::string_view drvName, OutputNameView outputName);
|
||||
|
||||
|
||||
/**
|
||||
|
|
@ -499,7 +499,7 @@ void writeDerivation(Sink & out, const Store & store, const BasicDerivation & dr
|
|||
* own outputs without needing to use the hash of a derivation in
|
||||
* itself, making the hash near-impossible to calculate.
|
||||
*/
|
||||
std::string hashPlaceholder(const std::string_view outputName);
|
||||
std::string hashPlaceholder(const OutputNameView outputName);
|
||||
|
||||
extern const Hash impureOutputHash;
|
||||
|
||||
|
|
|
|||
33
src/libstore/derived-path-map.cc
Normal file
33
src/libstore/derived-path-map.cc
Normal file
|
|
@ -0,0 +1,33 @@
|
|||
#include "derived-path-map.hh"
|
||||
|
||||
namespace nix {
|
||||
|
||||
template<typename V>
|
||||
typename DerivedPathMap<V>::ChildNode & DerivedPathMap<V>::ensureSlot(const SingleDerivedPath & k)
|
||||
{
|
||||
std::function<ChildNode &(const SingleDerivedPath & )> initIter;
|
||||
initIter = [&](const auto & k) -> auto & {
|
||||
return std::visit(overloaded {
|
||||
[&](const SingleDerivedPath::Opaque & bo) -> auto & {
|
||||
// will not overwrite if already there
|
||||
return map[bo.path];
|
||||
},
|
||||
[&](const SingleDerivedPath::Built & bfd) -> auto & {
|
||||
auto & n = initIter(*bfd.drvPath);
|
||||
return n.childMap[bfd.output];
|
||||
},
|
||||
}, k.raw());
|
||||
};
|
||||
return initIter(k);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
// instantiations
|
||||
|
||||
#include "create-derivation-and-realise-goal.hh"
|
||||
namespace nix {
|
||||
|
||||
template struct DerivedPathMap<std::weak_ptr<CreateDerivationAndRealiseGoal>>;
|
||||
|
||||
}
|
||||
73
src/libstore/derived-path-map.hh
Normal file
73
src/libstore/derived-path-map.hh
Normal file
|
|
@ -0,0 +1,73 @@
|
|||
#pragma once
|
||||
|
||||
#include "types.hh"
|
||||
#include "derived-path.hh"
|
||||
|
||||
namespace nix {
|
||||
|
||||
/**
|
||||
* A simple Trie, of sorts. Conceptually a map of `SingleDerivedPath` to
|
||||
* values.
|
||||
*
|
||||
* Concretely, an n-ary tree, as described below. A
|
||||
* `SingleDerivedPath::Opaque` maps to the value of an immediate child
|
||||
* of the root node. A `SingleDerivedPath::Built` maps to a deeper child
|
||||
* node: the `SingleDerivedPath::Built::drvPath` is first mapped to a a
|
||||
* child node (inductively), and then the
|
||||
* `SingleDerivedPath::Built::output` is used to look up that child's
|
||||
* child via its map. In this manner, every `SingleDerivedPath` is
|
||||
* mapped to a child node.
|
||||
*
|
||||
* @param V A type to instantiate for each output. It should probably
|
||||
* should be an "optional" type so not every interior node has to have a
|
||||
* value. For example, the scheduler uses
|
||||
* `DerivedPathMap<std::weak_ptr<CreateDerivationAndRealiseGoal>>` to
|
||||
* remember which goals correspond to which outputs. `* const Something`
|
||||
* or `std::optional<Something>` would also be good choices for
|
||||
* "optional" types.
|
||||
*/
|
||||
template<typename V>
|
||||
struct DerivedPathMap {
|
||||
/**
|
||||
* A child node (non-root node).
|
||||
*/
|
||||
struct ChildNode {
|
||||
/**
|
||||
* Value of this child node.
|
||||
*
|
||||
* @see DerivedPathMap for what `V` should be.
|
||||
*/
|
||||
V value;
|
||||
|
||||
/**
|
||||
* The map type for the root node.
|
||||
*/
|
||||
using Map = std::map<OutputName, ChildNode>;
|
||||
|
||||
/**
|
||||
* The map of the root node.
|
||||
*/
|
||||
Map childMap;
|
||||
};
|
||||
|
||||
/**
|
||||
* The map type for the root node.
|
||||
*/
|
||||
using Map = std::map<StorePath, ChildNode>;
|
||||
|
||||
/**
|
||||
* The map of root node.
|
||||
*/
|
||||
Map map;
|
||||
|
||||
/**
|
||||
* Find the node for `k`, creating it if needed.
|
||||
*
|
||||
* The node is referred to as a "slot" on the assumption that `V` is
|
||||
* some sort of optional type, so the given key can be set or unset
|
||||
* by changing this node.
|
||||
*/
|
||||
ChildNode & ensureSlot(const SingleDerivedPath & k);
|
||||
};
|
||||
|
||||
}
|
||||
|
|
@ -167,7 +167,7 @@ void drvRequireExperiment(
|
|||
|
||||
SingleDerivedPath::Built SingleDerivedPath::Built::parse(
|
||||
const Store & store, ref<SingleDerivedPath> drv,
|
||||
std::string_view output,
|
||||
OutputNameView output,
|
||||
const ExperimentalFeatureSettings & xpSettings)
|
||||
{
|
||||
drvRequireExperiment(*drv, xpSettings);
|
||||
|
|
@ -179,7 +179,7 @@ SingleDerivedPath::Built SingleDerivedPath::Built::parse(
|
|||
|
||||
DerivedPath::Built DerivedPath::Built::parse(
|
||||
const Store & store, ref<SingleDerivedPath> drv,
|
||||
std::string_view outputsS,
|
||||
OutputNameView outputsS,
|
||||
const ExperimentalFeatureSettings & xpSettings)
|
||||
{
|
||||
drvRequireExperiment(*drv, xpSettings);
|
||||
|
|
|
|||
|
|
@ -42,7 +42,7 @@ struct SingleDerivedPath;
|
|||
*/
|
||||
struct SingleDerivedPathBuilt {
|
||||
ref<SingleDerivedPath> drvPath;
|
||||
std::string output;
|
||||
OutputName output;
|
||||
|
||||
/**
|
||||
* Get the store path this is ultimately derived from (by realising
|
||||
|
|
@ -71,7 +71,7 @@ struct SingleDerivedPathBuilt {
|
|||
*/
|
||||
static SingleDerivedPathBuilt parse(
|
||||
const Store & store, ref<SingleDerivedPath> drvPath,
|
||||
std::string_view outputs,
|
||||
OutputNameView outputs,
|
||||
const ExperimentalFeatureSettings & xpSettings = experimentalFeatureSettings);
|
||||
nlohmann::json toJSON(Store & store) const;
|
||||
|
||||
|
|
|
|||
|
|
@ -11,7 +11,7 @@ std::string DownstreamPlaceholder::render() const
|
|||
|
||||
DownstreamPlaceholder DownstreamPlaceholder::unknownCaOutput(
|
||||
const StorePath & drvPath,
|
||||
std::string_view outputName,
|
||||
OutputNameView outputName,
|
||||
const ExperimentalFeatureSettings & xpSettings)
|
||||
{
|
||||
xpSettings.require(Xp::CaDerivations);
|
||||
|
|
@ -25,7 +25,7 @@ DownstreamPlaceholder DownstreamPlaceholder::unknownCaOutput(
|
|||
|
||||
DownstreamPlaceholder DownstreamPlaceholder::unknownDerivation(
|
||||
const DownstreamPlaceholder & placeholder,
|
||||
std::string_view outputName,
|
||||
OutputNameView outputName,
|
||||
const ExperimentalFeatureSettings & xpSettings)
|
||||
{
|
||||
xpSettings.require(Xp::DynamicDerivations);
|
||||
|
|
|
|||
|
|
@ -58,7 +58,7 @@ public:
|
|||
*/
|
||||
static DownstreamPlaceholder unknownCaOutput(
|
||||
const StorePath & drvPath,
|
||||
std::string_view outputName,
|
||||
OutputNameView outputName,
|
||||
const ExperimentalFeatureSettings & xpSettings = experimentalFeatureSettings);
|
||||
|
||||
/**
|
||||
|
|
@ -72,7 +72,7 @@ public:
|
|||
*/
|
||||
static DownstreamPlaceholder unknownDerivation(
|
||||
const DownstreamPlaceholder & drvPlaceholder,
|
||||
std::string_view outputName,
|
||||
OutputNameView outputName,
|
||||
const ExperimentalFeatureSettings & xpSettings = experimentalFeatureSettings);
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -399,8 +399,7 @@ StorePath resolveDerivedPath(Store & store, const SingleDerivedPath & req, Store
|
|||
store.printStorePath(drvPath), bfd.output);
|
||||
auto & optPath = outputPaths.at(bfd.output);
|
||||
if (!optPath)
|
||||
throw Error("'%s' does not yet map to a known concrete store path",
|
||||
bfd.to_string(store));
|
||||
throw MissingRealisation(bfd.drvPath->to_string(store), bfd.output);
|
||||
return *optPath;
|
||||
},
|
||||
}, req.raw());
|
||||
|
|
|
|||
|
|
@ -13,24 +13,36 @@
|
|||
|
||||
namespace nix {
|
||||
|
||||
/**
|
||||
* An (owned) output name. Just a type alias used to make code more
|
||||
* readible.
|
||||
*/
|
||||
typedef std::string OutputName;
|
||||
|
||||
/**
|
||||
* A borrowed output name. Just a type alias used to make code more
|
||||
* readible.
|
||||
*/
|
||||
typedef std::string_view OutputNameView;
|
||||
|
||||
struct OutputsSpec {
|
||||
/**
|
||||
* A non-empty set of outputs, specified by name
|
||||
*/
|
||||
struct Names : std::set<std::string> {
|
||||
using std::set<std::string>::set;
|
||||
struct Names : std::set<OutputName> {
|
||||
using std::set<OutputName>::set;
|
||||
|
||||
/* These need to be "inherited manually" */
|
||||
|
||||
Names(const std::set<std::string> & s)
|
||||
: std::set<std::string>(s)
|
||||
Names(const std::set<OutputName> & s)
|
||||
: std::set<OutputName>(s)
|
||||
{ assert(!empty()); }
|
||||
|
||||
/**
|
||||
* Needs to be "inherited manually"
|
||||
*/
|
||||
Names(std::set<std::string> && s)
|
||||
: std::set<std::string>(s)
|
||||
Names(std::set<OutputName> && s)
|
||||
: std::set<OutputName>(s)
|
||||
{ assert(!empty()); }
|
||||
|
||||
/* This set should always be non-empty, so we delete this
|
||||
|
|
@ -57,7 +69,7 @@ struct OutputsSpec {
|
|||
*/
|
||||
OutputsSpec() = delete;
|
||||
|
||||
bool contains(const std::string & output) const;
|
||||
bool contains(const OutputName & output) const;
|
||||
|
||||
/**
|
||||
* Create a new OutputsSpec which is the union of this and that.
|
||||
|
|
|
|||
|
|
@ -34,7 +34,7 @@ struct DrvOutput {
|
|||
/**
|
||||
* The name of the output.
|
||||
*/
|
||||
std::string outputName;
|
||||
OutputName outputName;
|
||||
|
||||
std::string to_string() const;
|
||||
|
||||
|
|
@ -84,7 +84,7 @@ struct Realisation {
|
|||
* Since these are the outputs of a single derivation, we know the
|
||||
* output names are unique so we can use them as the map key.
|
||||
*/
|
||||
typedef std::map<std::string, Realisation> SingleDrvOutputs;
|
||||
typedef std::map<OutputName, Realisation> SingleDrvOutputs;
|
||||
|
||||
/**
|
||||
* Collection type for multiple derivations' outputs' `Realisation`s.
|
||||
|
|
@ -146,7 +146,7 @@ public:
|
|||
MissingRealisation(DrvOutput & outputId)
|
||||
: MissingRealisation(outputId.outputName, outputId.strHash())
|
||||
{}
|
||||
MissingRealisation(std::string_view drv, std::string outputName)
|
||||
MissingRealisation(std::string_view drv, OutputName outputName)
|
||||
: Error( "cannot operate on output '%s' of the "
|
||||
"unbuilt derivation '%s'",
|
||||
outputName,
|
||||
|
|
|
|||
|
|
@ -14,6 +14,11 @@ void BaseError::addTrace(std::shared_ptr<AbstractPos> && e, hintformat hint, boo
|
|||
err.traces.push_front(Trace { .pos = std::move(e), .hint = hint, .frame = frame });
|
||||
}
|
||||
|
||||
void throwExceptionSelfCheck(){
|
||||
// This is meant to be caught in initLibUtil()
|
||||
throw SysError("C++ exception handling is broken. This would appear to be a problem with the way Nix was compiled and/or linked and/or loaded.");
|
||||
}
|
||||
|
||||
// c++ std::exception descendants must have a 'const char* what()' function.
|
||||
// This stringifies the error and caches it for use by what(), or similarly by msg().
|
||||
const std::string & BaseError::calcWhat() const
|
||||
|
|
|
|||
|
|
@ -214,4 +214,8 @@ public:
|
|||
}
|
||||
};
|
||||
|
||||
/** Throw an exception for the purpose of checking that exception handling works; see 'initLibUtil()'.
|
||||
*/
|
||||
void throwExceptionSelfCheck();
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -48,6 +48,23 @@ extern char * * environ __attribute__((weak));
|
|||
namespace nix {
|
||||
|
||||
void initLibUtil() {
|
||||
// Check that exception handling works. Exception handling has been observed
|
||||
// not to work on darwin when the linker flags aren't quite right.
|
||||
// In this case we don't want to expose the user to some unrelated uncaught
|
||||
// exception, but rather tell them exactly that exception handling is
|
||||
// broken.
|
||||
// When exception handling fails, the message tends to be printed by the
|
||||
// C++ runtime, followed by an abort.
|
||||
// For example on macOS we might see an error such as
|
||||
// libc++abi: terminating with uncaught exception of type nix::SysError: error: C++ exception handling is broken. This would appear to be a problem with the way Nix was compiled and/or linked and/or loaded.
|
||||
bool caught = false;
|
||||
try {
|
||||
throwExceptionSelfCheck();
|
||||
} catch (nix::Error _e) {
|
||||
caught = true;
|
||||
}
|
||||
// This is not actually the main point of this check, but let's make sure anyway:
|
||||
assert(caught);
|
||||
}
|
||||
|
||||
std::optional<std::string> getEnv(const std::string & key)
|
||||
|
|
|
|||
|
|
@ -500,6 +500,45 @@ static RegisterLegacyCommand r_nix_daemon("nix-daemon", main_nix_daemon);
|
|||
|
||||
struct CmdDaemon : StoreCommand
|
||||
{
|
||||
bool stdio = false;
|
||||
std::optional<TrustedFlag> isTrustedOpt = std::nullopt;
|
||||
|
||||
CmdDaemon()
|
||||
{
|
||||
addFlag({
|
||||
.longName = "stdio",
|
||||
.description = "Attach to standard I/O, instead of trying to bind to a UNIX socket.",
|
||||
.handler = {&stdio, true},
|
||||
});
|
||||
|
||||
addFlag({
|
||||
.longName = "force-trusted",
|
||||
.description = "Force the daemon to trust connecting clients.",
|
||||
.handler = {[&]() {
|
||||
isTrustedOpt = Trusted;
|
||||
}},
|
||||
.experimentalFeature = Xp::DaemonTrustOverride,
|
||||
});
|
||||
|
||||
addFlag({
|
||||
.longName = "force-untrusted",
|
||||
.description = "Force the daemon to not trust connecting clients. The connection will be processed by the receiving daemon before forwarding commands.",
|
||||
.handler = {[&]() {
|
||||
isTrustedOpt = NotTrusted;
|
||||
}},
|
||||
.experimentalFeature = Xp::DaemonTrustOverride,
|
||||
});
|
||||
|
||||
addFlag({
|
||||
.longName = "default-trust",
|
||||
.description = "Use Nix's default trust.",
|
||||
.handler = {[&]() {
|
||||
isTrustedOpt = std::nullopt;
|
||||
}},
|
||||
.experimentalFeature = Xp::DaemonTrustOverride,
|
||||
});
|
||||
}
|
||||
|
||||
std::string description() override
|
||||
{
|
||||
return "daemon to perform store operations on behalf of non-root clients";
|
||||
|
|
@ -516,7 +555,7 @@ struct CmdDaemon : StoreCommand
|
|||
|
||||
void run(ref<Store> store) override
|
||||
{
|
||||
runDaemon(false, std::nullopt);
|
||||
runDaemon(stdio, isTrustedOpt);
|
||||
}
|
||||
};
|
||||
|
||||
|
|
|
|||
|
|
@ -1,20 +1,44 @@
|
|||
R""(
|
||||
|
||||
# Example
|
||||
# Examples
|
||||
|
||||
* Run the daemon in the foreground:
|
||||
* Run the daemon:
|
||||
|
||||
```console
|
||||
# nix daemon
|
||||
```
|
||||
|
||||
* Run the daemon and listen on standard I/O instead of binding to a UNIX socket:
|
||||
|
||||
```console
|
||||
# nix daemon --stdio
|
||||
```
|
||||
|
||||
* Run the daemon and force all connections to be trusted:
|
||||
|
||||
```console
|
||||
# nix daemon --force-trusted
|
||||
```
|
||||
|
||||
* Run the daemon and force all connections to be untrusted:
|
||||
|
||||
```console
|
||||
# nix daemon --force-untrusted
|
||||
```
|
||||
|
||||
* Run the daemon, listen on standard I/O, and force all connections to use Nix's default trust:
|
||||
|
||||
```console
|
||||
# nix daemon --stdio --default-trust
|
||||
```
|
||||
|
||||
# Description
|
||||
|
||||
This command runs the Nix daemon, which is a required component in
|
||||
multi-user Nix installations. It runs build tasks and other
|
||||
operations on the Nix store on behalf of non-root users. Usually you
|
||||
don't run the daemon directly; instead it's managed by a service
|
||||
management framework such as `systemd`.
|
||||
management framework such as `systemd` on Linux, or `launchctl` on Darwin.
|
||||
|
||||
Note that this daemon does not fork into the background.
|
||||
|
||||
|
|
|
|||
|
|
@ -195,7 +195,7 @@ expect() {
|
|||
shift
|
||||
"$@" && res=0 || res="$?"
|
||||
if [[ $res -ne $expected ]]; then
|
||||
echo "Expected '$expected' but got '$res' while running '${*@Q}'" >&2
|
||||
echo "Expected exit code '$expected' but got '$res' from command ${*@Q}" >&2
|
||||
return 1
|
||||
fi
|
||||
return 0
|
||||
|
|
@ -209,7 +209,7 @@ expectStderr() {
|
|||
shift
|
||||
"$@" 2>&1 && res=0 || res="$?"
|
||||
if [[ $res -ne $expected ]]; then
|
||||
echo "Expected '$expected' but got '$res' while running '${*@Q}'" >&2
|
||||
echo "Expected exit code '$expected' but got '$res' from command ${*@Q}" >&2
|
||||
return 1
|
||||
fi
|
||||
return 0
|
||||
|
|
|
|||
|
|
@ -18,4 +18,6 @@ clearStore
|
|||
|
||||
drvDep=$(nix-instantiate ./text-hashed-output.nix -A producingDrv)
|
||||
|
||||
expectStderr 1 nix build "${drvDep}^out^out" --no-link | grepQuiet "Building dynamic derivations in one shot is not yet implemented"
|
||||
out2=$(nix build "${drvDep}^out^out" --no-link)
|
||||
|
||||
test $out1 == $out2
|
||||
|
|
|
|||
|
|
@ -146,5 +146,87 @@ EOF
|
|||
|
||||
git -C $flakeFollowsA add flake.nix
|
||||
|
||||
nix flake lock $flakeFollowsA 2>&1 | grep "warning: input 'B' has an override for a non-existent input 'invalid'"
|
||||
nix flake lock $flakeFollowsA 2>&1 | grep "warning: input 'B' has an override for a non-existent input 'invalid2'"
|
||||
nix flake lock "$flakeFollowsA" 2>&1 | grep "warning: input 'B' has an override for a non-existent input 'invalid'"
|
||||
nix flake lock "$flakeFollowsA" 2>&1 | grep "warning: input 'B' has an override for a non-existent input 'invalid2'"
|
||||
|
||||
# Now test follow path overloading
|
||||
# This tests a lockfile checking regression https://github.com/NixOS/nix/pull/8819
|
||||
#
|
||||
# We construct the following graph, where p->q means p has input q.
|
||||
# A double edge means that the edge gets overridden using `follows`.
|
||||
#
|
||||
# A
|
||||
# / \
|
||||
# / \
|
||||
# v v
|
||||
# B ==> C --- follows declared in A
|
||||
# \\ /
|
||||
# \\/ --- follows declared in B
|
||||
# v
|
||||
# D
|
||||
#
|
||||
# The message was
|
||||
# error: input 'B/D' follows a non-existent input 'B/C/D'
|
||||
#
|
||||
# Note that for `B` to resolve its follow for `D`, it needs `C/D`, for which it needs to resolve the follow on `C` first.
|
||||
flakeFollowsOverloadA="$TEST_ROOT/follows/overload/flakeA"
|
||||
flakeFollowsOverloadB="$TEST_ROOT/follows/overload/flakeA/flakeB"
|
||||
flakeFollowsOverloadC="$TEST_ROOT/follows/overload/flakeA/flakeB/flakeC"
|
||||
flakeFollowsOverloadD="$TEST_ROOT/follows/overload/flakeA/flakeB/flakeC/flakeD"
|
||||
|
||||
# Test following path flakerefs.
|
||||
createGitRepo "$flakeFollowsOverloadA"
|
||||
mkdir -p "$flakeFollowsOverloadB"
|
||||
mkdir -p "$flakeFollowsOverloadC"
|
||||
mkdir -p "$flakeFollowsOverloadD"
|
||||
|
||||
cat > "$flakeFollowsOverloadD/flake.nix" <<EOF
|
||||
{
|
||||
description = "Flake D";
|
||||
inputs = {};
|
||||
outputs = { ... }: {};
|
||||
}
|
||||
EOF
|
||||
|
||||
cat > "$flakeFollowsOverloadC/flake.nix" <<EOF
|
||||
{
|
||||
description = "Flake C";
|
||||
inputs.D.url = "path:./flakeD";
|
||||
outputs = { ... }: {};
|
||||
}
|
||||
EOF
|
||||
|
||||
cat > "$flakeFollowsOverloadB/flake.nix" <<EOF
|
||||
{
|
||||
description = "Flake B";
|
||||
inputs = {
|
||||
C = {
|
||||
url = "path:./flakeC";
|
||||
};
|
||||
D.follows = "C/D";
|
||||
};
|
||||
outputs = { ... }: {};
|
||||
}
|
||||
EOF
|
||||
|
||||
# input B/D should be able to be found...
|
||||
cat > "$flakeFollowsOverloadA/flake.nix" <<EOF
|
||||
{
|
||||
description = "Flake A";
|
||||
inputs = {
|
||||
B = {
|
||||
url = "path:./flakeB";
|
||||
inputs.C.follows = "C";
|
||||
};
|
||||
C.url = "path:./flakeB/flakeC";
|
||||
};
|
||||
outputs = { ... }: {};
|
||||
}
|
||||
EOF
|
||||
|
||||
git -C "$flakeFollowsOverloadA" add flake.nix flakeB/flake.nix \
|
||||
flakeB/flakeC/flake.nix flakeB/flakeC/flakeD/flake.nix
|
||||
|
||||
nix flake metadata "$flakeFollowsOverloadA"
|
||||
nix flake update "$flakeFollowsOverloadA"
|
||||
nix flake lock "$flakeFollowsOverloadA"
|
||||
|
|
|
|||
|
|
@ -1,4 +1,7 @@
|
|||
builtins.pathExists (builtins.toPath ./lib.nix)
|
||||
builtins.pathExists (./lib.nix)
|
||||
&& builtins.pathExists (builtins.toPath ./lib.nix)
|
||||
&& builtins.pathExists (builtins.toString ./lib.nix)
|
||||
&& !builtins.pathExists (builtins.toString ./lib.nix + "/")
|
||||
&& builtins.pathExists (builtins.toPath (builtins.toString ./lib.nix))
|
||||
&& !builtins.pathExists (builtins.toPath (builtins.toString ./bla.nix))
|
||||
&& builtins.pathExists ./lib.nix
|
||||
|
|
|
|||
|
|
@ -9,6 +9,7 @@ rm -rf $tarroot
|
|||
mkdir -p $tarroot
|
||||
cp dependencies.nix $tarroot/default.nix
|
||||
cp config.nix dependencies.builder*.sh $tarroot/
|
||||
touch -d '@1000000000' $tarroot $tarroot/*
|
||||
|
||||
hash=$(nix hash path $tarroot)
|
||||
|
||||
|
|
@ -36,6 +37,8 @@ test_tarball() {
|
|||
nix-build -o $TEST_ROOT/result -E "import (fetchTree { type = \"tarball\"; url = file:///does-not-exist/must-remain-unused/$tarball; narHash = \"$hash\"; })"
|
||||
expectStderr 102 nix-build -o $TEST_ROOT/result -E "import (fetchTree { type = \"tarball\"; url = file://$tarball; narHash = \"sha256-xdKv2pq/IiwLSnBBJXW8hNowI4MrdZfW+SYqDQs7Tzc=\"; })" | grep 'NAR hash mismatch in input'
|
||||
|
||||
[[ $(nix eval --impure --expr "(fetchTree file://$tarball).lastModified") = 1000000000 ]]
|
||||
|
||||
nix-instantiate --strict --eval -E "!((import (fetchTree { type = \"tarball\"; url = file://$tarball; narHash = \"$hash\"; })) ? submodules)" >&2
|
||||
nix-instantiate --strict --eval -E "!((import (fetchTree { type = \"tarball\"; url = file://$tarball; narHash = \"$hash\"; })) ? submodules)" 2>&1 | grep 'true'
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue