Support SVN branches and tags migration

git-sync-with-svn.sh

@@ -19,27 +19,37 @@
 #  - GIT_SCRIPTS: directory where the git sync scripts are located
 #  - GIT_SVN_SYNC_BASE: directory where the sync repositories are
 # stored.
-#  - GIT_SVN_SYNC_BRANCH: name of the branch that is synchronized with
-# subversion.
+#
+# Optional environment variables:
 #  - GIT_SVN_SYNC_EMAIL: email to send error reports to
+#  - GIT_SVN_SYNC_BRANCH: name of the branch that is synchronized with
+# subversion (default = svn-sync).
 #
 # Usage: git-sync-with-svn.sh project_name
 
-destination=${GIT_SVN_SYNC_EMAIL}
-project=${1?No project provided}
-location=${GIT_SVN_SYNC_BASE}/${project}
+if [ -z "${GIT_SCRIPTS}" ] || [ -z "${GIT_SVN_SYNC_BASE}" ] ] ; then
+    echo "The following variables are required for the synchronization to work: GIT_SCRIPTS GIT_SVN_SYNC_BASE"
+    exit 1
+fi
+
+# Set optional variables
+: ${GIT_SVN_SYNC_BRANCH:="svn-sync"}
+
+destination="${GIT_SVN_SYNC_EMAIL}"
+project="${1?No project provided}"
+location="${GIT_SVN_SYNC_BASE}/${project}"
 
-if [ ! -d $location ] ; then
+if [ ! -d "$location" ] ; then
     echo "The folder where the synchronization repository is supposed to be does not exist"
     exit 1
 fi
 
 unset GIT_DIR
-cd $location
+cd "$location"
 
 report () {
     echo $1
-    sh ${GIT_SCRIPTS}/report-error.sh $destination "$project" "$1"
+    [ -z "${destination}" ] || sh "${GIT_SCRIPTS}/report-error.sh" "$destination" "$project" "$1"
 }
 
 # Get changes from git repository

install/git-repository-from-svn.sh

@@ -1,42 +1,97 @@
-# -*- mode: Shell-script-*-
+ # -*- mode: Shell-script-*-
 #!/usr/bin/bash
 #
 # Author: Mario Fernandez
 #
 # Initializes a git repository that is synchronized with an existing
 # svn repository.
 #
-# Required environment variabless:
+# Required environment variables:
 #  - GIT_SCRIPTS: directory where the git sync scripts are located
 #  - GIT_SVN_SYNC_BASE: directory where the sync repositories are
 # stored.
-#  - GIT_SVN_SYNC_BRANCH: name of the branch that is synchronized with
-# subversion.
+#
+# Optional environment variables:
+# - GIT_SVN_SYNC_BRANCH: name of the branch that is synchronized with
+# subversion (default = svn-sync).
+# - GIT_SVN_LAYOUT: SVN layout options to override (default --stdlayout)
+# - GIT_SVN_AUTHORS: authors-file option (default none)
 #
 # Usage: git-repository-from-svn.sh project svn_url git_url
 
-if [ -z "${GIT_SCRIPTS}" ] || [ -z "${GIT_SVN_SYNC_BASE}" ] || [ -z "${GIT_SVN_SYNC_BRANCH}" ] ; then
-    echo "The following variables are required for the synchronization to work: GIT_SCRIPTS GIT_SVN_SYNC_BASE GIT_SVN_SYNC_BRANCH"
+if [ -z "${GIT_SCRIPTS}" ] || [ -z "${GIT_SVN_SYNC_BASE}" ] ; then
+    echo "The following variables are required for the synchronization to work: GIT_SCRIPTS GIT_SVN_SYNC_BASE"
     exit 1
 fi
 
-project=${1?No project name provided}
-svn_url=${2?No svn url provided}
-git_url=${3?No git url provided}
-client=${GIT_SVN_SYNC_BASE}/${project}
+# Set optional variables
+: ${GIT_SVN_SYNC_BRANCH:="svn-sync"}
+: ${GIT_SVN_LAYOUT:="--stdlayout"}
+[ -z "${GIT_SVN_AUTHORS}" ] || GIT_SVN_AUTHORS="--authors-file=${GIT_SVN_AUTHORS}"
+: ${GIT_HOOK_CMD:="ln -s"}
+: ${GIT_SVN_REMOTE:="svn"}
+: ${GIT_PUSH:=1}
+
+project="${1?No project name provided}"
+svn_url="${2?No svn url provided}"
+git_url="${3?No git url provided}"
+client="${GIT_SVN_SYNC_BASE}/${project}"
 
-if [ -d $client ] ; then
+if [ -d "$client" ] ; then
     echo "The folder for the git sync client already exists"
     exit 1
 fi
 
 # Sync client
-git svn clone ${svn_url} ${client} || { echo "Could not clone svn repository at ${svn_url} in ${client}" ; exit 1; }
+git svn clone ${GIT_SVN_LAYOUT} ${GIT_SVN_AUTHORS} --prefix "${GIT_SVN_REMOTE}/" "${svn_url}" "${client}" \
+    || { echo "Could not clone svn repository at ${svn_url} in ${client}" ; exit 1; }
+
+cd "${client}"
+
+# Convert SVN tags and branches for remote Git
+git for-each-ref --format="%(refname:short) %(objectname)" refs/remotes/${GIT_SVN_REMOTE} \
+| while read BRANCH REF
+do
+    NAME=${BRANCH##*/}
+    BODY="$(git log -1 --format=format:%B $REF)"
+
+    echo "ref=$REF parent=$(git rev-parse $REF^) name=$NAME body=$BODY" >&2
 
-cd ${client}
+    # Ignore branches with revision suffix
+    # TODO: Implement an ignore regexp option
+    if ! [[ $NAME =~ ^.+@[0-9]+$ ]]; then
+        case ${BRANCH#*/} in
+        tags/*)
+            echo "Converting tag $NAME as local Git tag..."
+            git tag -a -m "$BODY" $NAME $REF^ \
+            || { echo "Could not convert tag $NAME" ; exit 1; }
+            ;;
+        trunk)
+            echo "Preserving the trunk"
+            ;;
+        *)
+            echo "Copying branch $NAME as local Git branch..."
+            git branch $NAME $BRANCH \
+            || { echo "Could not convert branch $NAME" ; exit 1; }
+            ;;
+        esac
+    fi
+    # Delete all svn branches, but trunk
+    if ! [[ $NAME =~ ^trunk$ ]]; then
+        git branch -r -d $BRANCH \
+        || { echo "Could not delete branch $NAME" ; exit 1; }
+    fi
+done
+
+# Add the remote Git repo and push if requested
 git remote add origin ${git_url} || { echo "Could not set up server as remote from sync" ; exit 1; }
+if [ ${GIT_PUSH} -eq 1 ]; then
+    git push --all
+    git push --tags
+fi
+
 git branch ${GIT_SVN_SYNC_BRANCH} || { echo "Could not create svn sync branch" ; exit 1; }
 
 for hook in pre-receive pre-commit ; do
-    ln -s ${GIT_SCRIPTS}/sync-client-hooks/always-reject ${client}/.git/hooks/${hook}
+    ${GIT_HOOK_CMD} "${GIT_SCRIPTS}/sync-client-hooks/always-reject" "${client}/.git/hooks/${hook}"
 done