Add some helper scripts release workflows

Signed-off-by: Siddharth Chandrasekaran <[email protected]>

scripts/gen-changelog.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+last_rel=$(git describe --tags | perl -pe 's/-.*//')
+
+echo "$last_rel ## TODO"
+echo -e "------\n"
+date "+%d %B %Y"
+echo -e "\nRelease subject ## TODO"
+echo -e "\nEnhancements: ## TODO"
+echo -e "\nFixes: ## TODO"
+
+# Changes since last release
+git log ${last_rel}..HEAD --oneline --no-merges --decorate=no | perl -pe 's/^\w+ /  - /'
+echo -e "\n"

scripts/install-git-hooks.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+cat > .git/hooks/pre-commit << ---
+#!/bin/bash
+
+changes=\$(git diff --cached --name-status)
+m="pre-commit error"
+
+echo "\${changes}" | while read status file; do
+	# Release checks
+	if [[ "\$file" == "CHANGELOG" ]] ; then
+		git diff --cached CHANGELOG | grep -q '## TODO' && \\
+			echo "\$m release-check: CHANGELOG has TODOs" && exit 1
+		echo "\${changes}" | ( ! grep -q -e '^M\\sCMakeLists.txt' ) && \\
+			echo "\$m release-check: Version in CMakeLists.txt not modified!" && exit 1
+		clv="\$(git diff --cached CHANGELOG | perl -ne 'if (s/^\+v(\d+\.\d+\.\d+)/\$1/) {print;last}')"
+		cmv="\$(git diff --cached CMakeLists.txt | perl -ne 'if (s/^\+project\(libosdp VERSION (\d+\.\d+\.\d+)\)/\$1/) {print;last}')"
+		if [[ \$clv != "\$cmv" ]]; then
+			echo "\$m release-check: Version mismatch! (\$clv/\$cmv)" && exit 1
+		fi
+	fi
+done
+---
+chmod a+x .git/hooks/pre-commit && echo "Installed hook: .git/hooks/pre-commit"

scripts/release.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+tag=$1
+
+if [[ -z "$tag" ]] || [[ ! -z "$(echo $tag | perl -pe 's/v\d+\.\d+\.\d+//')" ]]; then
+	echo "Invalid release tag $tag; usage: $0 vX.Y.Z"
+	exit 1
+fi
+
+git diff --cached --name-status | while read status file; do
+	if [[ "$file" != "CHANGELOG" ]] && [[ "$file" != "CMakeLists.txt" ]]; then
+		echo "Invalid modification $file. Only CHANGELOG and CMakeLists.txt must be modified"
+		false
+	fi
+done || exit 1
+
+git commit -s -m "Release $tag" && git tag "$tag" -a -m "Release $tag"