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Document how to maintain a git-svn clone of the LLVM git repositories.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135453 91177308-0d34-0410-b5e6-96231b3b80d8
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Jeffrey Yasskin 2011-07-19 00:20:54 +00:00
parent 6c2f7e2398
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docs/GettingStarted.html
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@ -803,7 +803,62 @@ instructions</a> to successfully get and build the LLVM GCC front-end.</p>
read-only GIT clone of LLVM via:</p>
<pre>
% git clone http://llvm.org/git/llvm.git
git clone http://llvm.org/git/llvm.git
</pre>
<p>If you want to check out clang too, run:</p>
<pre>
git clone http://llvm.org/git/llvm.git
cd llvm/tools
git clone http://llvm.org/git/clang.git
</pre>
<p>To set up clone from which you can submit code using
<tt>git-svn</tt>, run:</p>
<pre>
git clone http://llvm.org/git/llvm
cd llvm
git svn init https://llvm.org/svn/llvm-project/llvm/trunk --username=&lt;username>
git config svn-remote.svn.fetch :refs/remotes/origin/master
git svn rebase -l # -l avoids fetching ahead of the git mirror.
# If you have clang too:
cd tools
git clone http://llvm.org/git/clang.git clang
cd clang
git svn init https://llvm.org/svn/llvm-project/cfe/trunk --username=&lt;username>
git config svn-remote.svn.fetch :refs/remotes/origin/master
git svn rebase -l
</pre>
<p>To update this clone without generating git-svn tags that conflict
with the upstream git repo, run:</p>
<pre>
git fetch && (cd tools/clang && git fetch) # Get matching revisions of both trees.
git checkout master
git svn rebase -l
(cd tools/clang &&
git checkout master &&
git svn rebase -l)
</pre>
<p>This leaves your working directories on their master branches, so
you'll need to <tt>checkout</tt> each working branch individually and
<tt>rebase</tt> it on top of its parent branch. (Note: This script is
intended for relative newbies to git. If you have more experience,
you can likely improve on it.)</p>
<p>The git-svn metadata can get out of sync after you mess around with
branches and <code>dcommit</code>. When that happens, <code>git svn
dcommit</code> stops working, complaining about files with uncommitted
changes. The fix is to rebuild the metadata:</p>
<pre>
rm -rf .git/svn
git svn rebase -l
</pre>
</div>