Add changelog helper script

changelog.sh

@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+
+set -e
+
+LAST_RELEASE_TAG="$(git describe --tags --abbrev=0)"
+LAST_RELEASE_TIMESTAMP="$(git log --format="%ct" -1 "${LAST_RELEASE_TAG}")"
+echo "Last release: ${LAST_RELEASE_TAG} at ${LAST_RELEASE_TIMESTAMP}"
+
+REPOS=(
+    .
+    cookbook
+)
+
+for package in $(installer/target/release/redox_installer --list-packages -c config/x86_64/desktop.toml)
+do
+    REPOS+=("cookbook/recipes/${package}/source")
+done
+
+# TODO: resolve dependencies instead of manually adding these initfs packages
+for package in init logd nulld ramfs randd zerod
+do
+    REPOS+=("cookbook/recipes/${package}/source")
+done
+
+for repo in "${REPOS[@]}"
+do
+    remote="$(git -C "${repo}" remote get-url origin)"
+    website="${remote%.*}"
+    name="$(basename "${website}")"
+    before="$(git -C "${repo}" log --until="${LAST_RELEASE_TIMESTAMP}" --format="%h" -1)"
+    after="$(git -C "${repo}" log --since="${LAST_RELEASE_TIMESTAMP}" --format="%h" -1)"
+    echo -en "\x1B[1m${name}:\x1B[0m "
+    if [ -z "${before}" ]
+    then
+        echo "New repository at ${website}"
+    elif [ -z "${after}" ]
+    then
+        echo "No changes"
+    else
+        echo "${website}/-/compare/${before}...${after}"
+    fi
+done