Add tools/publish.sh

tools/fmt.sh

@@ -10,7 +10,7 @@
 set -euo pipefail
 IFS=$'\n\t'
 
-cd "$(cd "$(dirname "${0}")" && pwd)"/..
+cd "$(cd "$(dirname "$0")" && pwd)"/..
 
 # shellcheck disable=SC2046
 if [[ -z "${CI:-}" ]]; then

tools/publish.sh

@@ -0,0 +1,70 @@
+#!/bin/bash
+
+set -euo pipefail
+IFS=$'\n\t'
+
+error() {
+    echo "error: $*" >&2
+}
+
+cd "$(cd "$(dirname "$0")" && pwd)"/..
+
+git diff --exit-code
+git diff --exit-code --staged
+
+# Parse arguments.
+version="${1:?}"
+tag="v${version}"
+if [[ ! "${version}" =~ ^[0-9]+\.[0-9]+\.[0-9]+(-[a-zA-Z_0-9\.-]+)?(\+[a-zA-Z_0-9\.-]+)?$ ]]; then
+    error "invalid version format: '${version}'"
+    exit 1
+fi
+if [[ "${2:-}" == "--dry-run" ]]; then
+    dryrun="--dry-run"
+    shift
+fi
+if [[ -n "${2:-}" ]]; then
+    error "invalid argument: '$2'"
+    exit 1
+fi
+
+# Make sure that a valid release note for this version exists.
+# https://github.com/taiki-e/parse-changelog
+echo "========== changes =========="
+parse-changelog CHANGELOG.md "${version}"
+echo "============================="
+
+# Make sure the same release has not been created in the past.
+if gh release view "${tag}" &>/dev/null; then
+    error "tag '${tag}' has already been created and pushed"
+    exit 1
+fi
+if git --no-pager tag | grep "${tag}" &>/dev/null; then
+    error "tag '${tag}' has already been created"
+    exit 1
+fi
+
+# Create and push tag.
+if [[ -n "${dryrun:-}" ]]; then
+    echo "warning: skip creating a new tag '${tag}' due to dry run"
+    exit 0
+fi
+
+echo "info: creating and pushing a new tag '${tag}'"
+
+set -x
+
+git push origin main
+git checkout v1
+git merge main
+git push origin refs/heads/v1
+
+if git --no-pager tag | grep "v1" &>/dev/null; then
+    git tag -d v1
+    git push --delete origin refs/tags/v1
+fi
+
+git tag v1
+git tag "${tag}"
+git push origin --tags
+git checkout main