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ci: fix python3 one-liner file truncation bug in pacman.conf rewrite

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The previous version called open(f,'w') before open(f).read() in the
same expression. Python evaluates the object (open for writing) first,
which truncates the file to zero before the read happens -- resulting
in an empty pacman.conf and a broken build.

Fix: read into a variable first, then write back. Also use ^/$ anchors
with re.MULTILINE so the pattern matches only lines that START with
SigLevel, leaving LocalFileSigLevel untouched. Tested locally against
a mock pacman.conf with the exact MSYS2 AppVeyor format.
This commit is contained in:
LD-RW 2026-04-10 22:39:14 +03:00
parent 3dadf00424
commit 048c46d35f
1 changed files with 2 additions and 2 deletions
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4
.appveyor.yml
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@ -39,10 +39,10 @@ install:
- set PATH=c:\msys64\%MSYSTEM%\bin;c:\msys64\usr\bin;%PATH%
- if defined MSVC call "c:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" %MSVC%
- if defined MSVC pacman --noconfirm -Rsc mingw-w64-%CPU%-gcc gcc
- bash -c "python3 -c \"import re; f='/etc/pacman.conf'; open(f,'w').write(re.sub(r'SigLevel\s*=\s*\S.*', 'SigLevel = Never', open(f).read()))\""
- bash -c "python3 -c \"import re; f='/etc/pacman.conf'; c=open(f).read(); open(f,'w').write(re.sub(r'^SigLevel\s*=.*$', 'SigLevel = Never', c, flags=re.MULTILINE))\""
- pacman --noconfirm -Syuu
- pacman --noconfirm -S msys2-keyring
- bash -c "python3 -c \"import re; f='/etc/pacman.conf'; open(f,'w').write(re.sub(r'SigLevel\s*=\s*Never', 'SigLevel = Required DatabaseOptional', open(f).read()))\""
- bash -c "python3 -c \"import re; f='/etc/pacman.conf'; c=open(f).read(); open(f,'w').write(re.sub(r'^SigLevel\s*=.*$', 'SigLevel = Required DatabaseOptional', c, flags=re.MULTILINE))\""
- pacman --noconfirm -Syuu
- pacman --noconfirm -S autoconf