create-manifest

#!/bin/bash

SCRIPTFOLDER="$(dirname "$(readlink -f "$0")")"

if [ "$VERSION" = "" ] || [ "$SDK_VERSION" = "" ] || [ "$CHANNEL" = "" ] || [ "$1" = "-h" ] || [ "$1" = "--help" ]; then
  echo "$0:"
  echo "This script will create a branch in the manifest repository checked out in $SCRIPTFOLDER/../manifest and push the branch and tag."
  echo "The repository is cloned from github.com/kinvolk/manifest.git if it does not exist (origin in an existing repository must point there"
  echo "or pushing fails or does some unwanted action)."
  echo "Set VERSION, SDK_VERSION, and CHANNEL as environment variables, e.g., VERSION=2345.3.0 SDK_VERSION=2345.2.0 CHANNEL=stable $0"
  echo
  echo "It creates tags only for the manifest repository. Tags for the repositories scripts, coreos-overlay, and portage-stable should be"
  echo "created first with ./tag-release (which can be rerun on build failures to introduce fixes without changing the manifest)."
  echo "By default the manifest references refs/tags/CHANNEL-VERSION for the repositories scripts, coreos-overlay, and portage-stable"
  echo "and simply refs/heads/master for the others because their revisions are defined by the CROS_WORKON_COMMIT in the respective ebuild files."
  echo "Set the environment variables SCRIPTS_REF, OVERLAY_REF, PORTAGE_REF, or DEFAULT_REF to specify any other reference."
  exit 1
fi

set -euo pipefail

SCRIPTS_REF="${SCRIPTS_REF-refs/tags/$CHANNEL-$VERSION}"
OVERLAY_REF="${OVERLAY_REF-refs/tags/$CHANNEL-$VERSION}"
PORTAGE_REF="${PORTAGE_REF-refs/tags/$CHANNEL-$VERSION}"
DEFAULT_REF="${DEFAULT_REF-refs/heads/master}"

echo "Running with CHANNEL=$CHANNEL VERSION=$VERSION SDK_VERSION=$SDK_VERSION"
echo "SCRIPTS_REF=$SCRIPTS_REF OVERLAY_REF=$OVERLAY_REF PORTAGE_REF=$PORTAGE_REF"
echo "DEFAULT_REF=$DEFAULT_REF"

cd "$SCRIPTFOLDER/.."

MANIFESTFOLDER="manifest"

if [ -d "${MANIFESTFOLDER}" ]; then
  git -C "${MANIFESTFOLDER}" fetch --prune origin
else
  git clone git@github.com:kinvolk/manifest.git "${MANIFESTFOLDER}"
fi

cd "${MANIFESTFOLDER}"

if [ "$(git status --porcelain || echo failed)" != "" ]; then
  echo "Error: Unexpected output of git status:"
  git status
  exit 1
fi

BRANCHNAME="flatcar-$CHANNEL-$VERSION"
EXISTS=0
echo "Preparing branch"
git checkout flatcar-master
git pull
git branch "$BRANCHNAME" || EXISTS=1
git checkout "$BRANCHNAME"
if [ "$EXISTS" = 1 ]; then
  echo "Warning: Reusing existing branch $BRANCHNAME, will try to pull."
  git pull || echo "Warning: Pulling failed. Ignore the above output if the branch just exists locally."
fi
echo "Preparing files"
sed -E -i "s/(FLATCAR_VERSION=)(.*)/\1$VERSION/" version.txt
sed -E -i "s/(FLATCAR_VERSION_ID=)(.*)/\1$VERSION/" version.txt
sed -E -i "s/(FLATCAR_SDK_VERSION=)(.*)/\1$SDK_VERSION/" version.txt

echo "Removing old build-*.xml files"
git rm ./build-*.xml || echo "Warning: Could not delete old files"

FILENAME="build-$(echo "$VERSION" | cut -d '.' -f 1).xml"

export SCRIPTS_REF OVERLAY_REF PORTAGE_REF DEFAULT_REF
cat "$SCRIPTFOLDER/manifest-template.xml.envsubst" | envsubst '$SCRIPTS_REF $OVERLAY_REF $PORTAGE_REF $DEFAULT_REF' > "$FILENAME"
# Note: appc-acbuild, appc-spec, rkt, and systemd always stay at refs/heads/master because they do not have flatcar-master or build branches

ln -fs "$FILENAME" default.xml
cp "$FILENAME" release.xml

MAJOR="${VERSION%%.*}"

MAINT="flatcar"
if [ "$CHANNEL" = lts ] && [ "$MAJOR" = "2605" ]; then
  MAINT="flatcar-lts"
fi

echo "Creating maintenance.xml for $MAINT-$MAJOR branches"

SCRIPTS_REF="refs/heads/$MAINT-$MAJOR"
OVERLAY_REF="refs/heads/$MAINT-$MAJOR"
PORTAGE_REF="refs/heads/$MAINT-$MAJOR"

export SCRIPTS_REF OVERLAY_REF PORTAGE_REF DEFAULT_REF
cat "$SCRIPTFOLDER/manifest-template.xml.envsubst" | envsubst '$SCRIPTS_REF $OVERLAY_REF $PORTAGE_REF $DEFAULT_REF' > maintenance.xml

echo "Adding changed files"
git add "$FILENAME" release.xml default.xml version.txt maintenance.xml
echo "Committing manifest"
git commit -m "build $VERSION" --author 'Flatcar Buildbot <buildbot@flatcar-linux.org>'
echo "Pushing branch"

git push --force-with-lease --set-upstream origin "$BRANCHNAME"
TAG="v$VERSION"
echo "Deleting tag $TAG if it exists"
git tag -d "$TAG" || echo "No local tags deleted"
git push --delete origin "$TAG" || echo "No remote tags deleted"
echo "Tagging commit"
git tag -s "$TAG" -m "$TAG"
echo "Pushing tag"
git push origin "$TAG"
echo "Done"