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Fix absolute paths for Cygwin #1970

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Merged
gaborbernat merged 8 commits into from
Oct 12, 2020
Merged

Fix absolute paths for Cygwin #1970

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63050db
Fix absolute paths for Cygwin
davidcoghlan Oct 6, 2020
0779f40
Remove Cygwin from the list, rely on the shell script for that
davidcoghlan Oct 9, 2020
b6cd6cc
Improved formatting
davidcoghlan Oct 9, 2020
30f4aeb
Update tests to handle mingw + msys explicitly
davidcoghlan Oct 9, 2020
05e8a92
Add changelog entry
davidcoghlan Oct 9, 2020
75a8a04
lint errors
davidcoghlan Oct 9, 2020
a34b438
Add msys support to the activation script
davidcoghlan Oct 9, 2020
a27fe8b
Fix script error & linting
davidcoghlan Oct 9, 2020
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2 changes: 1 addition & 1 deletion src/virtualenv/activation/bash/activate.sh
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Expand Up @@ -46,7 +46,7 @@ deactivate () {
# unset irrelevant variables
deactivate nondestructive

VIRTUAL_ENV='__VIRTUAL_ENV__'
VIRTUAL_ENV="$(if [ "$OSTYPE" = "cygwin" ]; then cygpath -u '__VIRTUAL_ENV__'; else echo '__VIRTUAL_ENV__'; fi;)"

@gaborbernat gaborbernat Oct 9, 2020

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I'd rather have this line un-changed and have a follow-up line that normalizes the env-var (if needed). Let's not cramp things in a single line.

export VIRTUAL_ENV

_OLD_VIRTUAL_PATH="$PATH"
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2 changes: 1 addition & 1 deletion src/virtualenv/activation/via_template.py
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Expand Up @@ -34,7 +34,7 @@ def generate(self, creator):

def replacements(self, creator, dest_folder):
current_platform = sysconfig.get_platform()
platforms = ["mingw", "cygwin", "msys"]
platforms = ["mingw", "msys"]

@davidcoghlan davidcoghlan Oct 9, 2020

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I can remove this section of code entirely if you prefer, just wondered if this would be safer.

@gaborbernat gaborbernat Oct 9, 2020

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I mean someone needs to check if mings, msys works same/different, and if is there a cygpath there. There're also tests you need to ammend/remove.

@davidcoghlan davidcoghlan Oct 9, 2020

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I download MinGW/MSYS -- as I understand it, MSYS is an environment built on top of the MinGW tools (http://www.mingw.org/wiki/MSYS). The string that gets returned from sysconfig.get_platform() depends on which flavour you install, but they are all different versions of the same thing.

Running it locally, it seems that MSYS wants paths in the form /c/somePath, and it does not understand Cygwin-style paths:

dn_co@DESKTOP-1TDKNNU /c/Users/dn_co
$ cd /cygdrive/c/
sh: cd: /cygdrive/c/: No such file or directory

So I think the current implementation is good for MSYS/MinGW.

@gaborbernat gaborbernat Oct 9, 2020

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It would suffer though from the same problem as cygwin does. Does msys has it's own variant of cygpath that we should be using to offer same guarantees we're offering for cygwin?

@gaborbernat gaborbernat Oct 9, 2020

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https://stackoverflow.com/a/12063651 has some detailed answer to this

@davidcoghlan davidcoghlan Oct 9, 2020

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👍 I can confirm that MSYS has cygpath, so we can approach it in the same way.

if any(platform in current_platform for platform in platforms):
pattern = re.compile("^([A-Za-z]):(.*)")
match = pattern.match(str(creator.dest))
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