metube/publish.sh

60 lines
2.0 KiB
Bash
Executable File

#!/usr/bin/env bash
# Publish a new MeTube docker image.
#
# Implements the versioning rule (see DEPLOY.md / AGENTS.md):
# - The version recorded in DEPLOY.md (checked into git) is the current
# online version.
# - Publishing bumps the minor number of that version, updates DEPLOY.md,
# builds the image with --build-arg VERSION=<new> and pushes it.
#
# Usage:
# ./publish.sh # bump minor of the current version (e.g. 1.10 -> 1.11)
# ./publish.sh 2.0 # publish an explicit version instead
set -euo pipefail
cd "$(dirname "$0")"
DEPLOY_FILE="DEPLOY.md"
# Current image reference (with tag), taken from the build command in DEPLOY.md
CURRENT_REF=$(grep -oP '(?<=-t )\S+:[0-9]+\.[0-9]+' "$DEPLOY_FILE" | head -1)
if [[ -z "$CURRENT_REF" ]]; then
echo "Error: could not find an image reference like '-t <registry>/<image>:<major>.<minor>' in $DEPLOY_FILE" >&2
exit 1
fi
IMAGE="${CURRENT_REF%:*}" # e.g. 192.168.2.212:3000/tigeren/metube
CURRENT_VERSION="${CURRENT_REF##*:}" # e.g. 1.10
if [[ $# -ge 1 ]]; then
NEW_VERSION="$1"
else
MAJOR="${CURRENT_VERSION%%.*}"
MINOR="${CURRENT_VERSION##*.}"
NEW_VERSION="$MAJOR.$((MINOR + 1))"
fi
if ! [[ "$NEW_VERSION" =~ ^[0-9]+\.[0-9]+$ ]]; then
echo "Error: version must be in <major>.<minor> form, got '$NEW_VERSION'" >&2
exit 1
fi
if [[ "$NEW_VERSION" == "$CURRENT_VERSION" ]]; then
echo "Error: new version $NEW_VERSION equals current version" >&2
exit 1
fi
echo "Publishing $IMAGE:$NEW_VERSION (current: $CURRENT_VERSION)"
# Record the new version as the current online version
sed -i "s/VERSION=${CURRENT_VERSION}\b/VERSION=${NEW_VERSION}/g; s/:${CURRENT_VERSION}\b/:${NEW_VERSION}/g" "$DEPLOY_FILE"
docker build --build-arg "VERSION=$NEW_VERSION" -t "$IMAGE:$NEW_VERSION" .
docker push "$IMAGE:$NEW_VERSION"
echo
echo "Published $IMAGE:$NEW_VERSION"
echo "DEPLOY.md updated to the new current online version."
echo "Suggested next step:"
echo " git add -A && git commit -m 'Publish v$NEW_VERSION'"