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manifest: record the original revision when in -r mode.

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Currently when doing a sync against a revision locked manifest,
sync has no option but to fall back to sync'ing the entire refs space;
it doesn't know which ref to ask for that contains the sha1 it wants.

This sucks if we're in -c mode; thus when we generate a revision
locked manifest, record the originating branch- and try syncing that
branch first.  If the sha1 is found within that branch, this saves
us having to pull down the rest of the repo- a potentially heavy
saving.

If that branch doesn't have the desired sha1, we fallback to sync'ing
everything.

Change-Id: I99a5e44fa1d792dfcada76956a2363187df94cf1
This commit is contained in:
Brian Harring
2012-09-28 20:21:57 -07:00
parent 34acdd2534
commit 14a6674e32
3 changed files with 55 additions and 17 deletions
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8
subcmds/manifest.py
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@ -48,6 +48,11 @@ in a Git repository for use during future 'repo init' invocations.
p.add_option('-r', '--revision-as-HEAD',
dest='peg_rev', action='store_true',
help='Save revisions as current HEAD')
p.add_option('--suppress-upstream-revision', dest='peg_rev_upstream',
default=True, action='store_false',
help='If in -r mode, do not write the upstream field. '
'Only of use if the branch names for a sha1 manifest are '
'sensitive.')
p.add_option('-o', '--output-file',
dest='output_file',
default='-',
@ -60,7 +65,8 @@ in a Git repository for use during future 'repo init' invocations.
else:
fd = open(opt.output_file, 'w')
self.manifest.Save(fd,
peg_rev = opt.peg_rev)
peg_rev = opt.peg_rev,
peg_rev_upstream = opt.peg_rev_upstream)
fd.close()
if opt.output_file != '-':
print >>sys.stderr, 'Saved manifest to %s' % opt.output_file