Updating git scripts

+ add support for gitfile (submodules with git >= 1.7.8)
+ add gituser detection from git configuration
+ add support for branches
+ various optimizations

1 files changed, 36 insertions, 21 deletions

diff --git a/update_all_submodules b/update_all_submodules
index d0bf837..8e6668f 100755
--- a/update_all_submodules
+++ b/update_all_submodules
@@ -6,17 +6,28 @@ if [[ -e /var/lock/update-tde-git-submodules ]]; then
         exit 0
 fi
 
+if [[ ! -e .git ]] ||
+   [[ -z "`git rev-parse --git-dir 2>/dev/null`" ]]; then
+	echo "Current directory does not contain a .git folder.  Exiting..."
+	exit 1
+fi
+
+branch=`git symbolic-ref -q HEAD | sed "s|^refs/heads/||"`
+if [[ -z "$branch" ]] ||
+   [[ -z "`git rev-parse --symbolic-full-name --remotes=\"*/$branch\"`" ]]; then
+	echo "There is not active upstream branch.  Exiting..."
+	exit 1
+fi
+
 touch /var/lock/update-tde-git-submodules
 
 PARENTDIR=$PWD
 echo "Working in $PARENTDIR"
-if [[ ! -d .git ]]; then
-	echo "Current directory does not contain a .git folder.  Exiting..."
-	exit 1
-fi
 git pull
-git reset --hard HEAD
-git clean -d -x -f
+if [[ ! -z "`git status --porcelain --ignore-submodules`" ]]; then
+	git reset --hard HEAD
+	git clean -dxff
+fi
 
 exec 3< submodules
 while read <&3
@@ -26,25 +37,29 @@ do
 	if [[ $DIR2UPDATE != "" ]]; then
 		echo "Attempting to reset submodule $DIR2UPDATE"
 		cd $PARENTDIR/$DIR2UPDATE/..
-		while [[ ! -d .git ]]; do
-			cd ../
-		done
-		git submodule init
-		git submodule update
+		cd `git rev-parse --show-toplevel`
+		if [[ -z "`grep \"^Updated: $PWD$\" /var/lock/update-tde-git-submodules`" ]]; then
+			echo "Updated: $PWD" >>/var/lock/update-tde-git-submodules
+			git submodule init
+			git submodule update
+		fi
 		cd $PARENTDIR/$DIR2UPDATE
-		git reset --hard HEAD
-		git clean -d -x -f
-		git checkout master
+		if [[ ! -z "`git status --porcelain --ignore-submodules`" ]]; then
+			git reset --hard HEAD
+			git clean -dxff
+		fi
+		git checkout $branch
 		git pull
 		cd ..
-		while [[ ! -d .git ]]; do
-			cd ../
-		done
+		cd `git rev-parse --show-toplevel`
 		echo "Committing changes to $PWD"
-#		git commit -a -m "Reset submodule to latest HEAD"
-		git add $PARENTDIR/$DIR2UPDATE
-		git commit $PARENTDIR/$DIR2UPDATE -m "Reset submodule $DIR2UPDATE to latest HEAD"
-		git push origin master
+		if [[ ! -z "`git status --porcelain $PARENTDIR/$DIR2UPDATE`" ]]; then
+			git add $PARENTDIR/$DIR2UPDATE
+			git commit $PARENTDIR/$DIR2UPDATE -m "Reset submodule $DIR2UPDATE to latest HEAD"
+		fi
+		if [[ "`git rev-parse HEAD`" != "`git rev-parse origin/$branch`" ]]; then
+			git push origin HEAD
+		fi
 	fi
 done
 exec 3>&-