git-open-web-ui

#!/bin/bash

set -eo pipefail

while [ $# -gt 0 ]; do
  case "$1" in
    --commit|-c)
      open_commit=1
      shift
      ;;

    --pipeline|-p)
      open_pipeline=1
      shift
      ;;

    --file|-f)
      open_file=1
      path="$2"
      shift
      shift
      ;;

    --remote|-r)
      remote="$2"
      shift
      shift
      ;;

    --issue|-i)
      open_issue=1
      shift
      ;;

    --help|-h)
      echo "Usage: $0 [options]" 1>&2
      echo 1>&2
      echo "Options:" 1>&2
      echo "  --commit, -c" 1>&2
      echo "    If set, tries to open the commit HEAD is at." 1>&2
      echo 1>&2

      echo "  --pipeline, -p" 1>&2
      echo "    If set, tries to open the GitLab pipelines for HEAD." 1>&2
      echo 1>&2

      echo "  --file <path>, -f <path>" 1>&2
      echo "    If set, opens the given path for the current branch." 1>&2
      echo "    If used together with --commit, -c, the given path is opened for the" 1>&2
      echo "    given commit." 1>&2
      echo 1>&2

      echo "  --remote <remote>, -r <remote>" 1>&2
      echo "    The remote to use, defaults to 'origin'." 1>&2
      echo 1>&2

      echo "  --issue, -i" 1>&2
      echo "    Attempt to open an issue in a bugtracker by using the first word of the commit message of HEAD as an issue ID." 1>&2
      echo "    Requires GIT_EXTS_BT_URL to be set. Uses the URL by appending the issue ID." 1>&2
      echo 1>&2

      exit 1
      ;;

    *)
      echo "Error: Unknown argument '$1'"
      exit 1
      ;;
  esac
done

if [[ ! "$remote" ]]; then
  remote="origin"
fi

remote_url=$(git remote get-url "$remote")
cleaned_url=$(echo "$remote_url" | sed 's/git@//; s/:/\//; s/.git$//')
url="https://$cleaned_url"

rev=$(git rev-parse HEAD)

if [[ "$open_file" ]]; then
  if [[ ! "$open_commit" ]]; then
    rev=$(git rev-parse --abbrev-ref HEAD)
  fi

  obj_type=$(git cat-file -t $rev:$path)
  url="$url/$obj_type/$rev/$path"
elif [[ "$open_commit" ]]; then
  rev=$(git rev-parse HEAD)
  url="$url/commit/$rev"
elif [[ "$open_pipeline" ]]; then
  url="$url/commit/$rev/pipelines"
elif [[ "$open_issue" ]]; then
  if [[ ! "$GIT_EXTS_BT_URL" ]]; then
    echo "Error: GIT_EXTS_BT_URL not set" 1>&2
    exit 1
  fi
  commit_subject=$(git show --no-patch --format='%s' HEAD)
  issue_key=$(echo "$commit_subject" | tr -s ' ' -f1)
  url="$GIT_EXTS_BT_URL/$issue_key"
fi

open "$url"