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Change By:
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Christian Höltje
(15/May/14 3:23 PM)
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Description:
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In order to speed up clones for very large repositories, I want to be able to use shallow clones.
Currently, using shallow clones ends up doing the following git commands:
{
{
code}
Cloning repository ssh://
automan@
gerrit.
bigdatalab
example
.
ibm.
com:29418/
vivisimo
myrepo.git
> git init /a/workspace/engine-copyright-check-gerrit
Fetching upstream changes from ssh://
automan@
gerrit.
bigdatalab
example
.
ibm.
com:29418/
vivisimo
myrepo.git
> git --version
> git fetch --tags --progress ssh://
automan@
gerrit.
bigdatalab
example
.
ibm.
com:29418/
vivisimo
myrepo.git
+refs/heads/*:refs/remotes/origin/* --depth=1
> git config remote.origin.url ssh://
automan@
gerrit.
bigdatalab
example
.
ibm.
com:29418/
vivisimo
myrepo.git
> git config remote.origin.fetch +refs/heads/*:refs/remotes/origin/*
> git config remote.origin.url ssh://
automan@
gerrit.
bigdatalab
example
.
ibm.
com:29418/
vivisimo
myrepo.git
Fetching upstream changes from ssh://
automan@
gerrit.
bigdatalab
example
.
ibm.
com:29418/
vivisimo
myrepo.git
> git fetch --tags --progress ssh://
automan@
gerrit.
bigdatalab
example
.
ibm.
com:29418/
vivisimo +
myrepo.git
refs/changes/
*
40
/20740/1
> git rev-parse FETCH_HEAD^{commit}
Checking out Revision e976b99ee4a8b6b65ea351f31c5cd4509a5eafaf (origin/release)
> git config core.sparsecheckout
> git checkout -f e976b99ee4a8b6b65ea351f31c5cd4509a5eafaf
> git rev-parse FETCH_HEAD^{commit}
> git rev-list 0ecf38b5c187d237b3689dcd2d5d52ba8c295610
{code}
I expected something more like
:
refs
{code}
Cloning repository ssh:
/
remotes
/
origin
gerrit.example.com:29418
/
myrepo.git
> git init /a/workspace/engine-copyright-check-gerrit
Fetching upstream
changes
from ssh:
/
*
/
gerrit.example.com:29418/myrepo.git
> git --version
> git fetch --progress ssh://gerrit.example.com:29418/myrepo.git refs/changes/40/
20740/1
--depth=1
> git rev-parse FETCH_HEAD^{commit}
Checking out Revision e976b99ee4a8b6b65ea351f31c5cd4509a5eafaf (origin/release)
> git config core.sparsecheckout
> git checkout -f e976b99ee4a8b6b65ea351f31c5cd4509a5eafaf
> git rev-parse FETCH_HEAD^{commit}
> git rev-list 0ecf38b5c187d237b3689dcd2d5d52ba8c295610
{code
}
The changes are:
1. Remove {{--tags
}
} flag
2. Fetch only those specific changes
The change, for our repository, is massively faster (a few seconds vs. 3 minutes) and less disk space (40mb vs 3gb).
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