From fb356ee5233750d093f95de8deab2d64ebd643ab Mon Sep 17 00:00:00 2001
From: Mike Dubman <miked@mellanox.com>
Date: Thu, 17 Oct 2013 06:49:58 +0000
Subject: [PATCH] Script to generate svn2git mirror on github Please read
 comments to customize various locations if you intend to run it locally

This commit was SVN r29449.
---
 contrib/git/update-git-svn.sh | 116 ++++++++++++++++++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100755 contrib/git/update-git-svn.sh

diff --git a/contrib/git/update-git-svn.sh b/contrib/git/update-git-svn.sh
new file mode 100755
index 0000000000..845398f75c
--- /dev/null
+++ b/contrib/git/update-git-svn.sh
@@ -0,0 +1,116 @@
+#!/bin/bash -x
+
+svn_url="http://svn.open-mpi.org/svn/ompi/trunk"
+
+# Use newer git (1.8.3+) to convert from svn2git which contains many conversion fixes
+GIT18="/scrap/OMPI_REPO/GIT-1.8.3.4/bin/git"
+
+# 1st copy location after svn->git conversion
+# This repo should be cloned from SVN manually like this:
+# $GIT18 svn clone $1 --no-metadata -A ../authors.txt -t tags -b branches --tags=tags/v1.0-series --tags=tags/v1.1-series --tags=tags/v1.2-series --tags=tags/v1.3-series --tags=tags/v1.4-series --tags=tags/v1.5-series --tags=tags/v1.6-series --tags=tags/v1.7-series  -T trunk . | tee > $logfile
+
+temp_repository=/scrap/OMPI_REPO/GIT/ompi-temp
+
+# branches to mirror into destination git repo
+BRANCHES='master v1.7 v1.6'
+
+# FS path to destination git repo
+DEST_REPO='/hpc/home/git/ompi-vendor.git'
+
+# location to generate Authors files from svn to git format
+path2author='/scrap/OMPI_REPO/GIT'
+
+logfile=/tmp/git-svn-update.$$.log
+admin_email="git-mirror-admin"
+
+local_fs_git_mirror=/hpc/home/git
+
+
+# github URL with username/passwd
+github_auth_file=$(dirname $0)/github_url.txt
+
+if [ ! -f $github_auth_file ]; then
+    echo ERROR: unable to fine URL with github mirror
+    exit 1
+fi
+
+github_url=$(cat $github_auth_file)
+
+
+###############################################################################
+
+doit() {
+   cmd="$*"
+   eval $cmd >> $logfile 2>&1
+   status=$?
+   if test "$status" != "0"; then
+      echo "Git SVN update failed.  Log:"
+	  tail -20 $logfile | mail -s "OMPI replication failed: $cmd" $admin_email
+      cat $logfile
+      exit $status
+   fi
+}
+
+function create_authors(){
+    pushd .
+    mv -f $path2author/authors.txt $path2author/authors.txt.backup
+    svn cat ${svn_url}/contrib/authors-to-cvsimport.pl > authors-to-cvsimport.pl
+    svn cat ${svn_url}/AUTHORS > AUTHORS
+    chmod 755 authors-to-cvsimport.pl
+    ./authors-to-cvsimport.pl AUTHORS > $path2author/authors.txt
+    popd
+}
+
+
+###############################################################################
+
+force=''
+if [ "$1" = "--force" ] || [ "$1" = "-f" ] ; then
+    echo "WARNING!!!  Force-pushing to git repositories, may result in rewinding!"
+    force='--force'
+fi
+
+rm -f $logfile
+touch $logfile
+cd $temp_repository
+
+create_authors
+
+doit $GIT18 svn fetch --fetch-all
+
+doit $GIT18 checkout master
+for i in `$GIT18 branch|grep -v trunk|grep -v master|grep -v '@'`; do
+    doit $GIT18 checkout ${i}
+    doit $GIT18 merge remotes/${i}
+done
+doit $GIT18 checkout master
+doit $GIT18 svn fetch
+doit $GIT18 merge remotes/trunk
+
+# GitHub mirror
+doit $GIT18 push $force $github_url '*:*'
+doit $GIT18 push $force $github_url :trunk
+
+
+# Local FS git mirror, ompi.git and ompi-replication.git should be cloned before running this script
+
+if [ -d $local_fs_git_mirror ]; then
+
+    for repo in ompi.git ompi-replication.git; do 
+        if [ -d $local_fs_git_mirror/$repo ]; then
+            doit $GIT18 push $force $local_fs_git_mirror/$repo '*:*'
+            doit $GIT18 push $force $local_fs_git_mirror/$repo :trunk
+        fi
+    done
+
+    # Repo ompi-vendor
+    doit sudo chown -R $USER $DEST_REPO
+
+    cd $temp_repository
+    for repon in $BRANCHES; do
+        doit $GIT18 push $force $DEST_REPO $repon:$repon
+    done
+fi
+
+rm -f $logfile
+exit 0