feat: add release script

1 files changed, 168 insertions, 0 deletions

diff --git a/release.sh b/release.sh
new file mode 100755
index 000000000000..2cc980495191
--- /dev/null
+++ b/release.sh
@@ -0,0 +1,168 @@
+#!/bin/env bash
+
+set -e
+
+SCRIPT_NAME="$(basename "$0")"
+REPOSITORY="k8sgpt-ai/k8sgpt"
+CLONE_DESTINATION="${PWD}/k8sgpt"
+NC="\e[0m"
+BOLD="\e[1m"
+DIM="\e[2m"
+Y="\e[33m"
+R="\e[31m"
+G="\e[32m"
+B="\e[34m"
+
+die() {
+  >&2 echo -e "${R}ERROR: $*${NC}"
+  exit 1
+}
+
+needs_arg() {
+  if test -z "$OPTARG"; then
+    die "no argument given to --${OPT} option"
+  fi
+}
+
+usage() {
+  echo
+  echo -e "${BOLD}Release new AUR version of package.${NC}"
+  echo
+  echo -e "${B}Usage:${NC}"
+  echo "    $SCRIPT_NAME [OPTION]..."
+  echo
+  echo -e "${B}Options:${NC}"
+  echo "    -c, --commit     Autocommit and push to release repository"
+  echo "    -m, --mode       Set cloning method (allowed values: https, ssh)"
+  echo -e "${DIM}                     Default: ssh${NC}"
+  echo "    -v, --version    Release from given version"
+  echo -e "${DIM}                     Default: latest release${NC}"
+  echo "    -h, --help       Show this help message"
+  exit 0
+}
+
+function clone() {
+  local fetch_url
+
+  case "${fetch_mode}" in
+    https ) fetch_url="https://github.com/${REPOSITORY}.git" ;;
+    * )     fetch_url="git@github.com:${REPOSITORY}.git" ;;
+  esac
+
+  echo -e "${DIM}Cloning bare repository from ${fetch_url}...${NC}"
+  git clone -q --bare "${fetch_url}" "${CLONE_DESTINATION}"
+}
+
+function get_commit_id() {
+  local tags
+
+  tags=$(git -C "${CLONE_DESTINATION}" tag -l --sort=v:refname)
+
+  if test -z "${release}"; then
+    release=$(echo "$tags" | tail -n1)
+    echo -e "${DIM}Defaulting to latest release (${release})...${NC}"
+  else
+    local is_release_valid="false"
+
+    for tag in $tags; do
+      if test "${release}" == "${tag}"; then
+        is_release_valid="true"
+        break
+      fi
+    done
+
+    if test "${is_release_valid}" = "false"; then
+      die "invalid version provided (${release})."
+    else
+      echo -e "${DIM}Using requested release (${release})...${NC}"
+    fi
+  fi
+
+  commit_id=$(git -C "${CLONE_DESTINATION}" rev-list -n1 "${release}")
+}
+
+function update_pkgbuild() {
+  echo -e "${DIM}Updating PKGBUILD...${NC}"
+
+  if ! sed -i.orig 's/^\(pkgver=\).*$/\1'"${release}"'/' PKGBUILD; then
+    rm -f PKGBUILD
+    mv PKGBUILD.orig PKGBUILD
+    clean
+    die "failed to write package version to PKGBUILD."
+  fi
+
+  if ! sed -i.orig 's/^\(.*commit=\).*$/\1'"${commit_id}"'")/' PKGBUILD; then
+    rm -f PKGBUILD
+    mv PKGBUILD.orig PKGBUILD
+    clean
+    die "failed to write source commit id to PKGBUILD."
+  fi
+
+  rm -f PKGBUILD.orig
+}
+
+function make_package() {
+  rm -rf "${CLONE_DESTINATION}"
+  makepkg -cCs
+  makepkg --printsrcinfo > .SRCINFO
+}
+
+function auto_commit() {
+  if test "${autocommit}" = "true"; then
+    git add .SRCINFO PKGBUILD
+    git commit -m "chore(release): ${release}"
+  fi
+}
+
+function clean() {
+  rm "${CLONE_DESTINATION}" -rf
+  rm ./*.tar.zst -f
+}
+
+function main() {
+  if ! command -v git &>/dev/null; then
+    die "git command is not available."
+  fi
+
+  if test -n "${release}" && ! [[ "${release:0:1}" == v ]]; then
+    release="v$release"
+  fi
+
+  clone
+  get_commit_id
+  update_pkgbuild
+  make_package
+  auto_commit
+  clean
+
+  echo -e "${G}Release was successful.${NC}"
+
+  if test "${autocommit}" = "false"; then
+    echo -e "${Y}Do not forget to commit changes: git commit -m 'chore(release): ${release}'"
+  fi
+}
+
+autocommit="false"
+fetch_mode="ssh"
+
+while getopts 'cm:v:h-:' OPT; do
+  # support long options: https://stackoverflow.com/a/28466267/519360
+  if test "$OPT" = "-"; then # long option: reformulate OPT and OPTARG
+    OPT="${OPTARG%%=*}" # extract long option name
+    # shellcheck disable=SC2295
+    OPTARG="${OPTARG#$OPT}" # extract long option argument (may be empty)
+    OPTARG="${OPTARG#=}" # if long option argument, remove assigning `=`
+  fi
+
+  case "$OPT" in
+    c | commit )  autocommit="true" ;;
+    m | mode )    fetch_mode="${OPTARG}" ;;
+    v | version ) release="${OPTARG}" ;;
+    h | help )    usage ;;
+    ??* )         die "illegal option --${OPT}" ;; # bad long option
+    ? )           exit 1 ;; # bad short option (error reported via getopts)
+  esac
+done
+
+shift $((OPTIND-1)) # remove parsed options and args from $@ list
+main