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devtool: make sure .git/info exists before writing to .git/info/excludes

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If nothing else is specified, 'git init' uses its default repository
template from the install location (e.g. /usr/share/git-core/templates),
which already includes an info/ subdirectory. However, when setting
init.templateDir to a different template path in ~/.gitconfig, this
isn't necessarily the case, and it can lead to setup_git_repo() failing
with stack traces like:

    File: '.../scripts/lib/devtool/__init__.py', lineno: 234, function: setup_git_repo
         0230:        pass
         0231:    if 'singletask.lock\n' not in excludes:
         0232:        excludes.append('singletask.lock\n')
         0233:    bb.warn("try writing excludefile")
     *** 0234:    with open(excludefile, 'w') as f:
         0235:        for line in excludes:
         0236:            f.write(line)
         0237:
         0238:    bb.process.run('git checkout -b %s' % devbranch, cwd=repodir)
    Exception: FileNotFoundError: [Errno 2] No such file or directory: '.../devtooltmp-6m36b181/workdir/foobar-1.0.1/.git/info/exclude'

Fix this edge case by creating the .git/info/ directory first.

Fixes: 334ba846c795fc0d8c73 (2018-02-01, "devtool: set up git repos so that singletask.lock is ignored")
(From OE-Core rev: 148a23e4d5ceaf655ccacb52deca4ba501f12975)

Signed-off-by: Roland Hieber <rhi@pengutronix.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Roland Hieber 2020-10-12 19:40:38 +02:00 committed by Richard Purdie
parent 7e38f67127
commit a6c9ee99b3
1 changed files with 6 additions and 1 deletions
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7
scripts/lib/devtool/__init__.py
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@ -212,8 +212,13 @@ def setup_git_repo(repodir, version, devbranch, basetag='devtool-base', d=None):
bb.process.run(commit_cmd, cwd=repodir)
# Ensure singletask.lock (as used by externalsrc.bbclass) is ignored by git
gitinfodir = os.path.join(repodir, '.git', 'info')
try:
os.mkdir(gitinfodir)
except FileExistsError:
pass
excludes = []
excludefile = os.path.join(repodir, '.git', 'info', 'exclude')
excludefile = os.path.join(gitinfodir, 'exclude')
try:
with open(excludefile, 'r') as f:
excludes = f.readlines()