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Add support for partial clone.

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A new option, --partial-clone is added to 'repo init' which tells repo
to utilize git's partial clone functionality, which reduces disk and
bandwidth usage when downloading by omitting blob downloads initially.
Different from restricting clone-depth, the user will have full access
to change history, etc., as the objects are downloaded on demand.

Change-Id: I60326744875eac16521a007bd7d5481112a98749
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/229532
Reviewed-by: Mike Frysinger <vapier@google.com>
Tested-by: Xin Li <delphij@google.com>
This commit is contained in:
Xin Li
2019-06-03 11:24:30 -07:00
committed by David Pursehouse
parent 87fb5a1894
commit 745be2ede1
6 changed files with 206 additions and 28 deletions
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6
git_command.py
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@ -98,13 +98,15 @@ class _GitCall(object):
return fun
git = _GitCall()
def git_require(min_version, fail=False):
def git_require(min_version, fail=False, msg=''):
git_version = git.version_tuple()
if min_version <= git_version:
return True
if fail:
need = '.'.join(map(str, min_version))
print('fatal: git %s or later required' % need, file=sys.stderr)
if msg:
msg = ' for ' + msg
print('fatal: git %s or later required%s' % (need, msg), file=sys.stderr)
sys.exit(1)
return False