combo-layer: Stop using filterdiff
I ran into an issue where a patch just deleting a single file within the repository (meta/recipes-devtools/m4/m4/make.patch) would get skipped by combo-layer. It turns out this has the patch header (commented to avoid breaking scripts): : diff --git a/meta/recipes-devtools/m4/m4/make.patch b/meta/recipes-devtools/m4/m4/make.patch : deleted file mode 100644 : index 79fb415..0000000 : --- a/meta/recipes-devtools/m4/m4/make.patch : +++ /dev/null : @@ -1,42 +0,0 @@ and this is classed as > 5 headers in filterdiff. When we piped the path through filterdiff, the --- line disappears, then the second time we pass through filterdiff, it shows no lines changed and the patch is assumed to be empty and skipped. Changing MAX_HEADERS in filterdiff is one way to fix this, another would be to grep out "deleted file mode" lines. Instead, we can use new git syntax to exclude files from the git format-patch instead and avoid filterdiff entirely. (From OE-Core rev: 296c70afeef75396dea9ae436058314d406dc257) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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@ -662,7 +662,14 @@ def action_update(conf, args):
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patch_cmd_range = "%s..%s" % (repo['last_revision'], top_revision)
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rev_cmd_range = patch_cmd_range
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file_filter = repo.get('file_filter',"")
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file_filter = repo.get('file_filter',".")
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# Filter out unwanted files
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exclude = repo.get('file_exclude', '')
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if exclude:
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for path in exclude.split():
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p = "%s/%s" % (dest_dir, path) if dest_dir != '.' else path
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file_filter += " ':!%s'" % p
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patch_cmd = "git format-patch -N %s --output-directory %s %s -- %s" % \
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(prefix,repo_patch_dir, patch_cmd_range, file_filter)
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@ -681,38 +688,6 @@ def action_update(conf, args):
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runcmd("%s %s %s %s" % (repo['hook'], patch, revlist[count], name))
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count=count-1
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# Step 3a: Filter out unwanted files and patches.
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exclude = repo.get('file_exclude', '')
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if exclude:
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filter = ['filterdiff', '-p1']
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for path in exclude.split():
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filter.append('-x')
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filter.append('%s/%s' % (dest_dir, path) if dest_dir != '.' else path)
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for patch in patchlist[:]:
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filtered = patch + '.tmp'
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with open(filtered, 'w') as f:
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runcmd(filter + [patch], out=f)
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# Now check for empty patches.
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if runcmd(['filterdiff', '--list', filtered]):
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# Possibly modified.
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os.unlink(patch)
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os.rename(filtered, patch)
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else:
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# Empty, ignore it. Must also remove from revlist.
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with open(patch, 'r') as f:
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fromline = f.readline()
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if not fromline:
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# Patch must have been empty to start with. No need
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# to remove it.
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continue
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m = re.match(r'''^From ([0-9a-fA-F]+) .*\n''', fromline)
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rev = m.group(1)
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logger.debug('skipping empty patch %s = %s' % (patch, rev))
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os.unlink(patch)
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os.unlink(filtered)
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patchlist.remove(patch)
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revlist.remove(rev)
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# Step 4: write patch list and revision list to file, for user to edit later
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patchlist_file = os.path.join(os.getcwd(), patch_dir, "patchlist-%s" % name)
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repo['patchlist'] = patchlist_file
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