Add git helper scripts

1 files changed, 40 insertions, 0 deletions

diff --git a/merge.sh b/merge.sh
new file mode 100755
index 0000000..50ed00a
--- /dev/null
+++ b/merge.sh
@@ -0,0 +1,40 @@
+#! /bin/sh
+
+. etc/git/modules
+
+wd=`pwd`
+
+if [ "$1" = "" ]; then
+  echo "source branch name expected" 1>&2
+  exit 1
+fi
+
+for i in $modules; do
+  echo "merge $i" 1>&2
+  cd $i
+
+  br=`git symbolic-ref -q HEAD`
+  br=`echo $br | sed -e 's%^refs/heads/%%'`
+
+  # Only allow fast-forward merges into master.
+  #
+  if [ "$br" = "master" ]; then
+    git merge --ff-only $*
+  else
+    git merge $*
+  fi
+
+  if [ $? -ne 0 ]; then
+    echo                1>&2
+    echo "merge FAILED" 1>&2
+    echo                1>&2
+
+    # Merge failures (conflicts) into non-master branches are ok.
+    #
+    if [ "$br" = "master" ]; then
+      exit 1
+    fi
+  fi
+
+  cd $wd
+done