From 9809eb029c3ca5ace3fc52a2c0c9888b0648fefe Mon Sep 17 00:00:00 2001
From: GabrielInTheWorld <meyergabriel@live.de>
Date: Thu, 2 Dec 2021 12:09:56 +0100
Subject: [PATCH] Automatically checkout the latest commit for every submodule

Adds a new script "services-to-master.sh" and updates the Makefile
---
 Makefile              |  6 +----
 services-to-master.sh | 62 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 63 insertions(+), 5 deletions(-)
 create mode 100755 services-to-master.sh

diff --git a/Makefile b/Makefile
index 8acb01b2d..6a90df9ef 100644
--- a/Makefile
+++ b/Makefile
@@ -28,11 +28,7 @@ reload-proxy:
 	docker-compose -f docker/docker-compose.dev.yml exec -w /etc/caddy proxy caddy reload
 
 services-to-master:
-	# Note: This script updates all submodules to upstream/master[1]. For setting the submodules to the linked
-	# commits use `git submodule update`. The `upstream` remote must be set up correctly to point to the main repo.
-	#
-	# [1] ...or main, or whatever branch the OS4 one is. See .gitmodules.
-	git submodule foreach -q --recursive 'git checkout $(git config -f $$toplevel/.gitmodules submodule.$$name.branch || echo master); git pull upstream $$(git config -f $$toplevel/.gitmodules submodule.$$name.branch || echo master)'
+	./services-to-master.sh
 
 submodules-origin-to-upstream:
 	# You may only use this one time after cloning this repository.
diff --git a/services-to-master.sh b/services-to-master.sh
new file mode 100755
index 000000000..1214a4a58
--- /dev/null
+++ b/services-to-master.sh
@@ -0,0 +1,62 @@
+# !/bin/bash
+
+function get_upstream_branch {
+   local SUBMODULE_NAME=$0
+   local MEDIA_SERVICE_NAME="openslides-media-service"
+   # We have to treat the media-service differently to the other services 
+   # until its "main" branch is neither master nor main
+   if [ "$SUBMODULE_NAME" == "$MEDIA_SERVICE_NAME" ]; then
+      echo "openslides4-dev"
+      return
+   fi;
+
+   local BRANCH_NAME=master
+   local exists=`git show-ref refs/heads/$BRANCH_NAME`
+   if [[ -z $exists ]]; then
+      BRANCH_NAME=main
+   fi;
+   echo "$BRANCH_NAME"
+}
+
+function get_upstream_name {
+   { 
+      # try
+      git ls-remote --exit-code upstream 2>/dev/null && echo "upstream"
+   } || {
+      # catch
+      echo "origin"
+   }
+}
+
+function pull_latest_commit {
+   local SUBMODULE_NAME=$0
+   echo "Pulling latest commit for: $SUBMODULE_NAME"
+   echo "$SUBMODULE_NAME: Checking which branch is the upstream branch"
+
+   local BRANCH_NAME=$(get_upstream_branch)
+
+   echo "$SUBMODULE_NAME: Upstream branch is $BRANCH_NAME"
+
+   git checkout $BRANCH_NAME;
+
+   local REMOTE_NAME=$(get_upstream_name)
+   git pull $REMOTE_NAME $BRANCH_NAME;
+
+   echo "$SUBMODULE_NAME: Successfully pulled latest commit"
+}
+
+export -f pull_latest_commit
+export -f get_upstream_branch
+export -f get_upstream_name
+
+git submodule update --init
+git submodule foreach -q --recursive "bash -c pull_latest_commit \$name"
+
+echo "Successfully pulled latest commits for every submodule!"
+
+# Old command, if we need to checkout another branch than master or main:
+# git submodule foreach -q --recursive
+# '
+# git checkout $(git config -f $$toplevel/.gitmodules submodule.$$name.branch || echo master); 
+# git pull upstream $$(git config -f $$toplevel/.gitmodules submodule.$$name.branch || echo master)
+# '
\ No newline at end of file