From 12ae05f4610735d7867712f347a5371844f525c8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Karel=20Ko=C4=8D=C3=AD?= <karel.koci@nic.cz>
Date: Tue, 28 Aug 2018 10:24:39 +0200
Subject: turris4x: preserve precompiled sdk

---
 scripts/utils          | 19 +++++++++++++++++++
 templates/turris4x.run | 51 ++++++++++++++++++++++++++++++++++----------------
 2 files changed, 54 insertions(+), 16 deletions(-)

diff --git a/scripts/utils b/scripts/utils
index fd50dd8..c096f29 100644
--- a/scripts/utils
+++ b/scripts/utils
@@ -5,6 +5,11 @@ echo_stage() {
 	echo -e "\033[1;34m========== $@ ==========\033[0m"
 }
 
+# Simple echo wrapper for stage marking
+echo_info() {
+	echo -e "\033[1;32m---------- $@ ----------\033[0m"
+}
+
 # Fetch bare git repository to WORKSPACE
 # First argument has to be a source URL
 # Second argument is name of directory to which will be repository cloned to.
@@ -27,3 +32,17 @@ git_fetch() {
 	[ -n "$BRANCH" ] || BRANCH=master
 	git --git-dir="$WORKSPACE/$2" --bare worktree add --detach $2 $BRANCH
 }
+
+# Lock special lock for this job
+# Extension appended to lock name has to be provided as first argument
+laminar_self_lock() {
+	# TODO trap release
+	laminarc lock "$(basename "$0")-$1"
+}
+
+# Unlock special lock for this job
+# Extension appended to lock name has to be provided as first argument
+laminar_self_unlock() {
+	# TODO remove trap release
+	laminarc unlock "$(basename "$0")-$1"
+}
diff --git a/templates/turris4x.run b/templates/turris4x.run
index 699b148..67844cf 100755
--- a/templates/turris4x.run
+++ b/templates/turris4x.run
@@ -8,28 +8,47 @@ MAKE="make -j4 IS_TTY=1 BUILD_LOG=1"
 echo_stage "Get packages"
 git_fetch "https://git.cynerd.cz/openwrt-personal-pkgs" pkgs
 
-echo_stage "Get turris-build"
-HASH="$(curl "https://repo.turris.cz/$BOARD-$BRANCH/git-hash" | awk '/ \* turris-build\: /{print $3}')"
-HASH="9544f32cf06c29aedf8c3d88b9ff8745179dfa69" # TODO remove this when repo_checkout is integrated
-git_fetch "https://gitlab.labs.nic.cz/turris/turris-build.git" turris-build "$HASH"
-
-echo_stage "Prepare SDK"
-mkdir openwrt
-cd openwrt
-echo ../turris-build/compile_fw -t $BOARD -p $BRANCH repo_prepare
-GIT_MIRROR="$WORKSPACE/mirror" \
-	CCACHE_HOST_DIR="$WORKSPACE/ccache-host" \
-	CCACHE_TARGET_DIR="$WORKSPACE/ccache-target" \
-	../turris-build/compile_fw -t $BOARD -p $BRANCH repo_prepare
+curl "https://repo.turris.cz/$BOARD-$BRANCH/git-hash" > git-hash
+if [ -f "$WORKSPACE/openwrt-git-hash" ] && cmp -s git-hash "$WORKSPACE/openwrt-git-hash"; then
+	echo_info "Using previous version of SDK"
+	cp -a "$WORKSPACE/sdk" openwrt
+	cd openwrt
+
+else
+	echo_info "Building new version of SDK"
+
+	echo_stage "Get turris-build"
+	HASH="$( | awk '/ \* turris-build\: /{print $3}')"
+	HASH="9544f32cf06c29aedf8c3d88b9ff8745179dfa69" # TODO remove this when repo_checkout is integrated
+	git_fetch "https://gitlab.labs.nic.cz/turris/turris-build.git" turris-build "$HASH"
+
+	echo_stage "Prepare SDK"
+	mkdir openwrt
+	cd openwrt
+	echo ../turris-build/compile_fw -t $BOARD -p $BRANCH repo_prepare
+	GIT_MIRROR="$WORKSPACE/mirror" \
+		CCACHE_HOST_DIR="$WORKSPACE/ccache-host" \
+		CCACHE_TARGET_DIR="$WORKSPACE/ccache-target" \
+		../turris-build/compile_fw -t $BOARD -p $BRANCH repo_prepare
+
+	echo_stage "Compile tools"
+	$MAKE tools/compile toolchain/compile package/usign/host/compile
+
+	echo_stage "Store SDK in workspace"
+	cd ..
+	laminar_self_lock sdk
+	rm -rf "$WORKSPACE/sdk"
+	cp -a openwrt "$WORKSPACE/sdk"
+	laminar_self_unlock sdk
+	cd openwrt
+
+fi
 
 echo_stage "Add our repository as feed"
 echo "src-git personal file://$WORKSPACE/pkgs" >> feeds.conf
 ./scripts/feeds update personal
 ./scripts/feeds install -p personal -d y -f -a
 
-echo_stage "Compile tools"
-$MAKE tools/compile toolchain/compile package/usign/host/compile
-
 echo_stage "Compile packages from our feed"
 $MAKE $(./scripts/feeds list -r personal | sed -n 's/^\([^ ]*\).*$/package\/\1\/compile/p' | tr '\n' ' ')
 
-- 
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