From b0d74087e54845129610e901f5c4a2e662e8c9bd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sl=C3=A1vek=20Banko?= <slavek.banko@axis.cz>
Date: Sat, 7 Jul 2018 16:12:37 +0200
Subject: [PATCH] Update update_all_submodules + create lock specific by branch
 + initialize submodules only if they have not yet been initialized + use
 --no-recurse-submodules at git pull for better overview of the update
 progress
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Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
---
 update_all_submodules | 57 ++++++++++++++++++++++++++-----------------
 1 file changed, 35 insertions(+), 22 deletions(-)

diff --git a/update_all_submodules b/update_all_submodules
index b70bb97..776fff8 100755
--- a/update_all_submodules
+++ b/update_all_submodules
@@ -1,11 +1,17 @@
 #!/bin/bash
 
-if [[ -e /var/lock/update-tde-git-submodules ]]; then
-        echo "TDE GIT submodules are currently being updated"
-        echo "If this is not the case, please remove the lockfile /var/lock/update-tde-git-submodules"
-        exit 0
-fi
+# echo in bold
+echobd () {
+    if [ -p /dev/stdout ]; then
+        echo "$1"
+    else
+        echo -ne "\033[1m"
+        echo -n "$1"
+        echo -e "\033[0m"
+    fi
+}
 
+# verify git directory and branch
 if [[ ! -e .git ]] &&
    [[ -z "`git rev-parse --git-dir 2>/dev/null`" ]]; then
 	echo "Current directory does not contain a .git folder.  Exiting..."
@@ -13,29 +19,25 @@ if [[ ! -e .git ]] &&
 fi
 
 branch=`git symbolic-ref -q HEAD | sed "s|^refs/heads/||"`
+if [[ -z "$branch" ]]; then
+    branch=`git branch --contains HEAD | egrep -v "no branch|detached" | head -n1 | cut -c 3-`
+fi
 if [[ -z "$branch" ]] ||
    [[ -z "`git rev-parse --symbolic-full-name --remotes=\"*/$branch\"`" ]]; then
 	echo "There is not active upstream branch.  Exiting..."
 	exit 1
 fi
 
+# get git user
 GITUSER="Automated System <$(git config --get user.email)>"
 
 # check git abilities
 if [[ -n "`git status --help 2>/dev/null|grep -- '--ignore-submodules'`" ]]; then
   GIT_IGNORE_SUBMODULES="--ignore-submodules"
 fi
-
-# echo in bold
-echobd () {
-    if [ -p /dev/stdout ]; then
-        echo "$1"
-    else
-        echo -ne "\033[1m"
-        echo -n "$1"
-        echo -e "\033[0m"
-    fi
-}
+if [[ -n "`git pull --help |grep -- '--\[no-\]recurse-submodules'`" ]]; then
+  GIT_NO_RECURSE_SUBMODULES="--no-recurse-submodules"
+fi
 
 # commmit changed module
 commitModule() {
@@ -53,7 +55,7 @@ commitModule() {
     fi
     if [[ "`git rev-parse HEAD`" != "`git rev-parse origin/$branch`" ]]; then
         echo "Push changes for $PWD"
-        git pull --rebase
+        git pull --rebase $GIT_NO_RECURSE_SUBMODULES
         git push origin HEAD
     fi
 }
@@ -75,7 +77,7 @@ updateModule() {
     if [[ "$1" != "" ]]; then
         git checkout $branch
     fi
-    git pull --rebase
+    git pull --rebase $GIT_NO_RECURSE_SUBMODULES
     if [[ "`git rev-parse HEAD`" != "`git rev-parse origin/$branch`" ]]; then
         echo "Push changes for $PWD"
         git push origin HEAD
@@ -89,8 +91,12 @@ updateModule() {
         while read submodule; do
             echobd "Attempting to reset submodule ${MODULE}${submodule}"
             cd $PARENTDIR/$MODULE
-            git submodule init -- $submodule
-            git submodule update -- $submodule
+            if [[ -z "`git config --get submodule.$submodule.url`" ]]; then
+                git submodule init -- $submodule
+            fi
+            if [[ ! -e "$submodule/.git" ]]; then
+                git submodule update -- $submodule
+            fi
             updateModule ${MODULE}${submodule}
         done
         if [[ "$1" != "" ]]; then
@@ -100,10 +106,17 @@ updateModule() {
 }
 
 # Update from top module
-touch /var/lock/update-tde-git-submodules
+if [[ -e /var/lock/update-tde-git-submodules-$branch ]]; then
+        echo "TDE GIT submodules are currently being updated"
+        echo "If this is not the case, please remove the lockfile"
+        echo "/var/lock/update-tde-git-submodules-$branch"
+        exit 0
+fi
+touch /var/lock/update-tde-git-submodules-$branch
+echobd "Updating submodules in $(git rev-parse --show-toplevel | xargs -r basename) $branch branch"
 cd `git rev-parse --show-toplevel`
 PARENTDIR=$PWD
 echobd "Working in $PARENTDIR"
 updateModule
 echobd "Done in $PARENTDIR"
-rm /var/lock/update-tde-git-submodules
+rm /var/lock/update-tde-git-submodules-$branch