This should fix#7366 for now, but using the (IMHO) pragmatic approach
of extending the sed expression to recognize strings.
However, this approach is obviously not parsing the full AST, nor does
it wrap Python itself (as pointed out by @spwhitt in #7366) but tries to
match Python strings as best as possible without getting TOO unreadable.
We also use a little bit of Nix to help generating the SED expression,
because doing the whole quote matching block over and over again would
be quite repetitious and error-prone to change. The reason why I'm using
imap here is that we need to have unique labels to avoid jumping into
the wrong branch.
So the new expression is not only able to match continous regions of
triple-quoted strings, but also regions with only one quote character
(even with escaped inner quotes) and empty strings.
However, what it doesn't correctly recognize is something like this:
"string1" "string2" "multi
line
string"
Which is very unlikely that we'll find something like this in the wild.
Of course, we could handle it as well, but it would mean that we need to
substitute the current line into hold space until we're finished parsing
the strings, branch off to another label where we match multiline
strings of all sorts and swap hold/pattern space and finally print the
result. So to summarize: The SED expression would be 3 to 4 times bigger
than now and we gain very little from that.
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
This reverts commit 79a5fec9c0.
meta.broken uses 'throw' under the hood so it can not improve the
current situation. Reverting to previous behaviour gives us correct
error message to the user indicating that interpreter is not supported.
Correcting Hydra output is out of scope of Python packaging.
We have tons of evaluation errors on Hydra because it tries to build
known broken packages. Re-using meta.broken makes sure these packages
aren't evaluated in the first place.
Propagation is not needed anymore, as we have more powerful apis today
than this dirty hack. See nix-shell tool and python.buildEnv function
in nixpkgs manual.
when you run nix-shell 2 times at the same time of project (but different
branches) you get collision in names inside /tmp folder. i solved this by
hashing current path of developing folder and using that as indentifier while
still keeping name at the end.
diff --git a/pkgs/development/python-modules/generic/default.nix
b/pkgs/development/python-modules/generic/default.nix index 4c9c53a..6ec7934
100644 --- a/pkgs/development/python-modules/generic/default.nix +++
b/pkgs/development/python-modules/generic/default.nix @@ -161,11 +161,12 @@ if
disabled then throw "${name} not supported for interpreter ${python.executabl
shellHook = attrs.shellHook or ''
if test -e setup.py; then
- mkdir -p /tmp/$name/lib/${python.libPrefix}/site-packages
+ tmp_path=/tmp/`pwd | md5sum | cut -f 1 -d " "`-$name
+ mkdir -p $tmp_path/lib/${python.libPrefix}/site-packages
${preShellHook}
- export PATH="/tmp/$name/bin:$PATH"
- export PYTHONPATH="/tmp/$name/lib/${python.libPrefix}/site-packages:$PYTHONPATH"
- ${python}/bin/${python.executable} setup.py develop --prefix /tmp/$name
+ export PATH="$tmp_path/bin:$PATH"
+ export PYTHONPATH="$tmp_path/lib/${python.libPrefix}/site-packages:$PYTHONPATH"
+ ${python}/bin/${python.executable} setup.py develop --prefix $tmp_path
${postShellHook}
fi
'';
Not really critical for anything we have in <nixpkgs> I guess, but
skipping lines three times really was a workaround and we're better off
just appending the lines ending with backslash to the pattern space so
we can accumulate all the crap until the last line of crap (crap, that
is "broken lines").
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
The bazaar package is still broken even with 5f01cc7, because __future__
imports need to be the first imports before anything else. So this time
I'm going to make the sed expression with explicit branching so we can
properly match all the occasions we want to skip and insert the line
modifying sys.argv[0] only _once_ and leave the command block after
that one substitution. So no ugly swaps between hold and pattern space.
The label which is resonsible for not escaping the command block is "r"
and we jump to it as long as we need to skip something from the start of
the file.
While at it, I'm not only skipping every line with __future__ in it but
also backslashes at the end of the line, so for example:
```python
from __future__ import shiny_feature1, \
shiny_feature2, \
shiny_feature3
```
... will now be properly skipped as well.
Tested against bazaar and nixops.
Thanks to @edolstra for reporting this.
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
Fixes issues introduced by 24ef871e6a.
The problem here is that "import sys; sys.argv[0] = ..." is just
appended after the first "#!", which in turn breaks things such as
encoding specifications. A second problem - although not very common -
is when there's another #! within the script.
This should take care of both cases.
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
Before we used `easy_install` command to handle installation
in one shot, now this is split into two phases:
- buildPhase: python setup.py build
- installPhase: python setup.py install
Each of those commands have the ability to pass extra
parameters through buildPythonPackage parameters as
`setupPyInstallFlags` and `setupPyBuildFlags`.
Phases now correctly execute post/pre hooks.
In configurePhase we inject setuptools dependency before distutils
is imported to apply monkeypatching by setuptools that is needed
for special features to apply.
We don't have to reorder default phases anymore, as test
phase comes after build and that works.
I rewrote offineDistutils into distutils-cfg with a bit cleaner
syntax and ability to specify extraCfg to the config file.
Plone packages are failing and garbas said he will adopt them to
the new functions. The rest of the packages I fixed and these commits
shouldn't break any package (according to my testings) and they introduce
16 new jobs and fix 38 that were broken before.
This reverts commit edd160452e.
If we propagate it, derivations that use a python package will also
get the recursivePthLoader needed to process the pth files of the
package.
