From 34295941145b2df1b6c3a9b36c50ad2982227b2f Mon Sep 17 00:00:00 2001 From: Silvan Mosberger Date: Tue, 27 Feb 2024 23:26:40 +0100 Subject: [PATCH] lib.fileset: Fix tests on Darwin, more POSIX This was found when trying to run the fileset tests on Darwin (https://github.com/NixOS/nix/pull/9546#issuecomment-1967409445), which mysteriously fail on Darwin: test case at lib/fileset/tests.sh:342 failed: toSource { root = "/nix/store/foobar"; fileset = ./.; } should have errored with this regex pattern: lib.fileset.toSource: `root` \(/nix/store/foobar\) is a string-like value, but it should be a path instead. \s*Paths in strings are not supported by `lib.fileset`, use `lib.sources` or derivations instead. but this was the actual error: error: lib.fileset.toSource: `root` (/nix/store/foobar) is a string-like value, but it should be a path instead. Paths in strings are not supported by `lib.fileset`, use `lib.sources` or derivations instead. After dissecting this, I find out that apparently \s works on Linux, but not on Darwin for some reason! From the bash source code, it looks like with `REG_EXTENDED` is used for all platforms the same, so there's nothing odd there. It's almost impossible to know where comes from, but it looks to be a POSIX thing. So after digging through the almost impossible to find POSIX specifications (https://pubs.opengroup.org/onlinepubs/007908799/xbd/re.html#tag_007_003_005), I can indeed confirm that there's no mention of \s or the like! _However_, there is a mention of `[[:blank:]]`, so we'll use that instead. --- lib/fileset/tests.sh | 100 ++++++++++++++++++++++--------------------- 1 file changed, 52 insertions(+), 48 deletions(-) diff --git a/lib/fileset/tests.sh b/lib/fileset/tests.sh index 654a7cefc9f1..405fa04d8e06 100755 --- a/lib/fileset/tests.sh +++ b/lib/fileset/tests.sh @@ -345,13 +345,17 @@ checkFileset() { #### Error messages ##### +# We're using [[:blank:]] here instead of \s, because only the former is POSIX +# (see https://pubs.opengroup.org/onlinepubs/007908799/xbd/re.html#tag_007_003_005). +# And indeed, Darwin's bash only supports the former + # Absolute paths in strings cannot be passed as `root` expectFailure 'toSource { root = "/nix/store/foobar"; fileset = ./.; }' 'lib.fileset.toSource: `root` \(/nix/store/foobar\) is a string-like value, but it should be a path instead. -\s*Paths in strings are not supported by `lib.fileset`, use `lib.sources` or derivations instead.' +[[:blank:]]*Paths in strings are not supported by `lib.fileset`, use `lib.sources` or derivations instead.' expectFailure 'toSource { root = cleanSourceWith { src = ./.; }; fileset = ./.; }' 'lib.fileset.toSource: `root` is a `lib.sources`-based value, but it should be a path instead. -\s*To use a `lib.sources`-based value, convert it to a file set using `lib.fileset.fromSource` and pass it as `fileset`. -\s*Note that this only works for sources created from paths.' +[[:blank:]]*To use a `lib.sources`-based value, convert it to a file set using `lib.fileset.fromSource` and pass it as `fileset`. +[[:blank:]]*Note that this only works for sources created from paths.' # Only paths are accepted as `root` expectFailure 'toSource { root = 10; fileset = ./.; }' 'lib.fileset.toSource: `root` is of type int, but it should be a path instead.' @@ -361,9 +365,9 @@ mkdir -p {foo,bar}/mock-root expectFailure 'with ((import ).extend (import )).fileset; toSource { root = ./foo/mock-root; fileset = ./bar/mock-root; } ' 'lib.fileset.toSource: Filesystem roots are not the same for `fileset` and `root` \('"$work"'/foo/mock-root\): -\s*`root`: Filesystem root is "'"$work"'/foo/mock-root" -\s*`fileset`: Filesystem root is "'"$work"'/bar/mock-root" -\s*Different filesystem roots are not supported.' +[[:blank:]]*`root`: Filesystem root is "'"$work"'/foo/mock-root" +[[:blank:]]*`fileset`: Filesystem root is "'"$work"'/bar/mock-root" +[[:blank:]]*Different filesystem roots are not supported.' rm -rf -- * # `root` needs to exist @@ -372,8 +376,8 @@ expectFailure 'toSource { root = ./a; fileset = ./.; }' 'lib.fileset.toSource: ` # `root` needs to be a file touch a expectFailure 'toSource { root = ./a; fileset = ./a; }' 'lib.fileset.toSource: `root` \('"$work"'/a\) is a file, but it should be a directory instead. Potential solutions: -\s*- If you want to import the file into the store _without_ a containing directory, use string interpolation or `builtins.path` instead of this function. -\s*- If you want to import the file into the store _with_ a containing directory, set `root` to the containing directory, such as '"$work"', and set `fileset` to the file path.' +[[:blank:]]*- If you want to import the file into the store _without_ a containing directory, use string interpolation or `builtins.path` instead of this function. +[[:blank:]]*- If you want to import the file into the store _with_ a containing directory, set `root` to the containing directory, such as '"$work"', and set `fileset` to the file path.' rm -rf -- * # The fileset argument should be evaluated, even if the directory is empty @@ -382,36 +386,36 @@ expectFailure 'toSource { root = ./.; fileset = abort "This should be evaluated" # Only paths under `root` should be able to influence the result mkdir a expectFailure 'toSource { root = ./a; fileset = ./.; }' 'lib.fileset.toSource: `fileset` could contain files in '"$work"', which is not under the `root` \('"$work"'/a\). Potential solutions: -\s*- Set `root` to '"$work"' or any directory higher up. This changes the layout of the resulting store path. -\s*- Set `fileset` to a file set that cannot contain files outside the `root` \('"$work"'/a\). This could change the files included in the result.' +[[:blank:]]*- Set `root` to '"$work"' or any directory higher up. This changes the layout of the resulting store path. +[[:blank:]]*- Set `fileset` to a file set that cannot contain files outside the `root` \('"$work"'/a\). This could change the files included in the result.' rm -rf -- * # non-regular and non-symlink files cannot be added to the Nix store mkfifo a expectFailure 'toSource { root = ./.; fileset = ./a; }' 'lib.fileset.toSource: `fileset` contains a file that cannot be added to the store: '"$work"'/a -\s*This file is neither a regular file nor a symlink, the only file types supported by the Nix store. -\s*Therefore the file set cannot be added to the Nix store as is. Make sure to not include that file to avoid this error.' +[[:blank:]]*This file is neither a regular file nor a symlink, the only file types supported by the Nix store. +[[:blank:]]*Therefore the file set cannot be added to the Nix store as is. Make sure to not include that file to avoid this error.' rm -rf -- * # Path coercion only works for paths expectFailure 'toSource { root = ./.; fileset = 10; }' 'lib.fileset.toSource: `fileset` is of type int, but it should be a file set or a path instead.' expectFailure 'toSource { root = ./.; fileset = "/some/path"; }' 'lib.fileset.toSource: `fileset` \("/some/path"\) is a string-like value, but it should be a file set or a path instead. -\s*Paths represented as strings are not supported by `lib.fileset`, use `lib.sources` or derivations instead.' +[[:blank:]]*Paths represented as strings are not supported by `lib.fileset`, use `lib.sources` or derivations instead.' expectFailure 'toSource { root = ./.; fileset = cleanSourceWith { src = ./.; }; }' 'lib.fileset.toSource: `fileset` is a `lib.sources`-based value, but it should be a file set or a path instead. -\s*To convert a `lib.sources`-based value to a file set you can use `lib.fileset.fromSource`. -\s*Note that this only works for sources created from paths.' +[[:blank:]]*To convert a `lib.sources`-based value to a file set you can use `lib.fileset.fromSource`. +[[:blank:]]*Note that this only works for sources created from paths.' # Path coercion errors for non-existent paths expectFailure 'toSource { root = ./.; fileset = ./a; }' 'lib.fileset.toSource: `fileset` \('"$work"'/a\) is a path that does not exist. -\s*To create a file set from a path that may not exist, use `lib.fileset.maybeMissing`.' +[[:blank:]]*To create a file set from a path that may not exist, use `lib.fileset.maybeMissing`.' # File sets cannot be evaluated directly expectFailure 'union ./. ./.' 'lib.fileset: Directly evaluating a file set is not supported. -\s*To turn it into a usable source, use `lib.fileset.toSource`. -\s*To pretty-print the contents, use `lib.fileset.trace` or `lib.fileset.traceVal`.' +[[:blank:]]*To turn it into a usable source, use `lib.fileset.toSource`. +[[:blank:]]*To pretty-print the contents, use `lib.fileset.trace` or `lib.fileset.traceVal`.' expectFailure '_emptyWithoutBase' 'lib.fileset: Directly evaluating a file set is not supported. -\s*To turn it into a usable source, use `lib.fileset.toSource`. -\s*To pretty-print the contents, use `lib.fileset.trace` or `lib.fileset.traceVal`.' +[[:blank:]]*To turn it into a usable source, use `lib.fileset.toSource`. +[[:blank:]]*To pretty-print the contents, use `lib.fileset.trace` or `lib.fileset.traceVal`.' # Past versions of the internal representation are supported expectEqual '_coerce ": value" { _type = "fileset"; _internalVersion = 0; _internalBase = ./.; }' \ @@ -423,9 +427,9 @@ expectEqual '_coerce ": value" { _type = "fileset"; _internalVersion = 2; # Future versions of the internal representation are unsupported expectFailure '_coerce ": value" { _type = "fileset"; _internalVersion = 4; }' ': value is a file set created from a future version of the file set library with a different internal representation: -\s*- Internal version of the file set: 4 -\s*- Internal version of the library: 3 -\s*Make sure to update your Nixpkgs to have a newer version of `lib.fileset`.' +[[:blank:]]*- Internal version of the file set: 4 +[[:blank:]]*- Internal version of the library: 3 +[[:blank:]]*Make sure to update your Nixpkgs to have a newer version of `lib.fileset`.' # _create followed by _coerce should give the inputs back without any validation expectEqual '{ @@ -539,16 +543,16 @@ mkdir -p {foo,bar}/mock-root expectFailure 'with ((import ).extend (import )).fileset; toSource { root = ./.; fileset = union ./foo/mock-root ./bar/mock-root; } ' 'lib.fileset.union: Filesystem roots are not the same: -\s*First argument: Filesystem root is "'"$work"'/foo/mock-root" -\s*Second argument: Filesystem root is "'"$work"'/bar/mock-root" -\s*Different filesystem roots are not supported.' +[[:blank:]]*First argument: Filesystem root is "'"$work"'/foo/mock-root" +[[:blank:]]*Second argument: Filesystem root is "'"$work"'/bar/mock-root" +[[:blank:]]*Different filesystem roots are not supported.' expectFailure 'with ((import ).extend (import )).fileset; toSource { root = ./.; fileset = unions [ ./foo/mock-root ./bar/mock-root ]; } ' 'lib.fileset.unions: Filesystem roots are not the same: -\s*Element 0: Filesystem root is "'"$work"'/foo/mock-root" -\s*Element 1: Filesystem root is "'"$work"'/bar/mock-root" -\s*Different filesystem roots are not supported.' +[[:blank:]]*Element 0: Filesystem root is "'"$work"'/foo/mock-root" +[[:blank:]]*Element 1: Filesystem root is "'"$work"'/bar/mock-root" +[[:blank:]]*Different filesystem roots are not supported.' rm -rf -- * # Coercion errors show the correct context @@ -652,9 +656,9 @@ mkdir -p {foo,bar}/mock-root expectFailure 'with ((import ).extend (import )).fileset; toSource { root = ./.; fileset = intersection ./foo/mock-root ./bar/mock-root; } ' 'lib.fileset.intersection: Filesystem roots are not the same: -\s*First argument: Filesystem root is "'"$work"'/foo/mock-root" -\s*Second argument: Filesystem root is "'"$work"'/bar/mock-root" -\s*Different filesystem roots are not supported.' +[[:blank:]]*First argument: Filesystem root is "'"$work"'/foo/mock-root" +[[:blank:]]*Second argument: Filesystem root is "'"$work"'/bar/mock-root" +[[:blank:]]*Different filesystem roots are not supported.' rm -rf -- * # Coercion errors show the correct context @@ -761,8 +765,8 @@ rm -rf -- * # Also not the other way around mkdir a expectFailure 'toSource { root = ./a; fileset = difference ./. ./a; }' 'lib.fileset.toSource: `fileset` could contain files in '"$work"', which is not under the `root` \('"$work"'/a\). Potential solutions: -\s*- Set `root` to '"$work"' or any directory higher up. This changes the layout of the resulting store path. -\s*- Set `fileset` to a file set that cannot contain files outside the `root` \('"$work"'/a\). This could change the files included in the result.' +[[:blank:]]*- Set `root` to '"$work"' or any directory higher up. This changes the layout of the resulting store path. +[[:blank:]]*- Set `fileset` to a file set that cannot contain files outside the `root` \('"$work"'/a\). This could change the files included in the result.' rm -rf -- * # Difference actually works @@ -839,7 +843,7 @@ expectFailure 'fileFilter null (abort "this is not needed")' 'lib.fileset.fileFi # The second argument needs to be an existing path expectFailure 'fileFilter (file: abort "this is not needed") _emptyWithoutBase' 'lib.fileset.fileFilter: Second argument is a file set, but it should be a path instead. -\s*If you need to filter files in a file set, use `intersection fileset \(fileFilter pred \./\.\)` instead.' +[[:blank:]]*If you need to filter files in a file set, use `intersection fileset \(fileFilter pred \./\.\)` instead.' expectFailure 'fileFilter (file: abort "this is not needed") null' 'lib.fileset.fileFilter: Second argument is of type null, but it should be a path instead.' expectFailure 'fileFilter (file: abort "this is not needed") ./a' 'lib.fileset.fileFilter: Second argument \('"$work"'/a\) is a path that does not exist.' @@ -1103,7 +1107,7 @@ rm -rf -- * # String-like values are not supported expectFailure 'fromSource (lib.cleanSource "")' 'lib.fileset.fromSource: The source origin of the argument is a string-like value \(""\), but it should be a path instead. -\s*Sources created from paths in strings cannot be turned into file sets, use `lib.sources` or derivations instead.' +[[:blank:]]*Sources created from paths in strings cannot be turned into file sets, use `lib.sources` or derivations instead.' # Wrong type expectFailure 'fromSource null' 'lib.fileset.fromSource: The source origin of the argument is of type null, but it should be a path instead.' @@ -1420,10 +1424,10 @@ expectEqual '(import '"$storePath"' { fs = lib.fileset; }).outPath' \""$storePat ## But it fails if the path is imported with a fetcher that doesn't remove .git (like just using "${./.}") expectFailure 'import "${./.}" { fs = lib.fileset; }' 'lib.fileset.gitTracked: The argument \(.*\) is a store path within a working tree of a Git repository. -\s*This indicates that a source directory was imported into the store using a method such as `import "\$\{./.\}"` or `path:.`. -\s*This function currently does not support such a use case, since it currently relies on `builtins.fetchGit`. -\s*You could make this work by using a fetcher such as `fetchGit` instead of copying the whole repository. -\s*If you can'\''t avoid copying the repo to the store, see https://github.com/NixOS/nix/issues/9292.' +[[:blank:]]*This indicates that a source directory was imported into the store using a method such as `import "\$\{./.\}"` or `path:.`. +[[:blank:]]*This function currently does not support such a use case, since it currently relies on `builtins.fetchGit`. +[[:blank:]]*You could make this work by using a fetcher such as `fetchGit` instead of copying the whole repository. +[[:blank:]]*If you can'\''t avoid copying the repo to the store, see https://github.com/NixOS/nix/issues/9292.' ## Even with submodules if [[ -n "$fetchGitSupportsSubmodules" ]]; then @@ -1447,15 +1451,15 @@ if [[ -n "$fetchGitSupportsSubmodules" ]]; then ## But it fails if the path is imported with a fetcher that doesn't remove .git (like just using "${./.}") expectFailure 'import "${./.}" { fs = lib.fileset; }' 'lib.fileset.gitTrackedWith: The second argument \(.*\) is a store path within a working tree of a Git repository. - \s*This indicates that a source directory was imported into the store using a method such as `import "\$\{./.\}"` or `path:.`. - \s*This function currently does not support such a use case, since it currently relies on `builtins.fetchGit`. - \s*You could make this work by using a fetcher such as `fetchGit` instead of copying the whole repository. - \s*If you can'\''t avoid copying the repo to the store, see https://github.com/NixOS/nix/issues/9292.' + [[:blank:]]*This indicates that a source directory was imported into the store using a method such as `import "\$\{./.\}"` or `path:.`. + [[:blank:]]*This function currently does not support such a use case, since it currently relies on `builtins.fetchGit`. + [[:blank:]]*You could make this work by using a fetcher such as `fetchGit` instead of copying the whole repository. + [[:blank:]]*If you can'\''t avoid copying the repo to the store, see https://github.com/NixOS/nix/issues/9292.' expectFailure 'import "${./.}/sub" { fs = lib.fileset; }' 'lib.fileset.gitTracked: The argument \(.*/sub\) is a store path within a working tree of a Git repository. - \s*This indicates that a source directory was imported into the store using a method such as `import "\$\{./.\}"` or `path:.`. - \s*This function currently does not support such a use case, since it currently relies on `builtins.fetchGit`. - \s*You could make this work by using a fetcher such as `fetchGit` instead of copying the whole repository. - \s*If you can'\''t avoid copying the repo to the store, see https://github.com/NixOS/nix/issues/9292.' + [[:blank:]]*This indicates that a source directory was imported into the store using a method such as `import "\$\{./.\}"` or `path:.`. + [[:blank:]]*This function currently does not support such a use case, since it currently relies on `builtins.fetchGit`. + [[:blank:]]*You could make this work by using a fetcher such as `fetchGit` instead of copying the whole repository. + [[:blank:]]*If you can'\''t avoid copying the repo to the store, see https://github.com/NixOS/nix/issues/9292.' fi rm -rf -- *