lib/oe/patch: fix handling of patches with no header
If a patch applied by a recipe has no header and we turn the recipe's source into a git tree (when PATCHTOOL = "git" or when using devtool extract / modify / upgrade), the commit message ends up consisting only of the original filename marker ("%% original patch: filename.patch"). When we come to do turn the commits back into a set of patches in extractPatches(), this first line ends up in the "Subject: " part of the file, but we were ignoring it because the line didn't start with the marker text. The end result was we weren't able to get the original patch name. Strip off any "Subject [PATCH x/y]" part before looking for the marker text to fix. This caused "devtool modify openssl" followed by "devtool update-recipe openssl" (without any changes in-between) to remove version-script.patch because that patch has no header and we weren't able to determine the original filename. (From OE-Core rev: d9971f5dc8eb7de551fd6f5e058fd24770ef5d78) Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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@ -428,6 +428,7 @@ class GitApplyTree(PatchTree):
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def extractPatches(tree, startcommit, outdir, paths=None):
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import tempfile
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import shutil
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import re
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tempdir = tempfile.mkdtemp(prefix='oepatch')
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try:
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shellcmd = ["git", "format-patch", startcommit, "-o", tempdir]
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@ -443,10 +444,13 @@ class GitApplyTree(PatchTree):
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try:
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with open(srcfile, 'r', encoding=encoding) as f:
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for line in f:
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if line.startswith(GitApplyTree.patch_line_prefix):
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checkline = line
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if checkline.startswith('Subject: '):
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checkline = re.sub(r'\[.+?\]\s*', '', checkline[9:])
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if checkline.startswith(GitApplyTree.patch_line_prefix):
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outfile = line.split()[-1].strip()
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continue
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if line.startswith(GitApplyTree.ignore_commit_prefix):
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if checkline.startswith(GitApplyTree.ignore_commit_prefix):
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continue
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patchlines.append(line)
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except UnicodeDecodeError:
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