Scan for build directory absolute Windows path after building

[DavidEGrayson]

Several issues reported to the MINGW-packages repository resulted from the Windows path to the packager's MSYS2 installation accidentally being baked into the package itself:

• https://github.com/Alexpux/MINGW-packages/issues/816
• https://github.com/Alexpux/MINGW-packages/issues/775
• https://github.com/Alexpux/MINGW-packages/pull/776
• https://github.com/Alexpux/MINGW-packages/issues/402
• https://github.com/Alexpux/MINGW-packages/issues/381
• https://github.com/Alexpux/MINGW-packages/issues/248

I would suggest adding a pass to makepkg that scans the package for this issue. Something like this could go a long way:

grep -Fr `cygpath -w /` $pkgdir && echo "warning: absolute path to build directory found in package"

[yfwz100]

I suggest the detection command changed to

grep -Fr `cygpath -m /` $pkgdir && echo "warning: absolute path to build directory found in package"

cygpath -w / fail to detect path with '/' as separator.

[DavidEGrayson]

Thanks, that's a good idea. I don't know which version is more common (the one with forward slashes or backslashes). We might as well check for both.

[DavidEGrayson]

makepkg already has a feature for warning about build directory references:

https://github.com/Alexpux/MSYS2-pacman/blob/master/scripts/libmakepkg/lint_package/build_references.sh.in

I am working on a pull request that improves that script.

[yfwz100]

:+1: