#!/bin/sh -e
# Find the maintainer of a package

## SYNOPSIS:
## .Nm
## .Op Ar pkg...

## DESCRIPTION:
## .Nm
## finds the maintainer of the given pacage. If no package name is given,
## .Nm
## will use the name of the current directory as the package.

# shellcheck disable=1091
. cpt-lib

usage() {
    out "usage: ${0##*/} [pkg...]"
    exit
}

case $1 in
    --help|-h) usage ;;
    '') set -- "${PWD##*/}"
esac

for pkgname; do
    cpt-search -d "$pkgname" | while read -r pkg; do
        # Default to the 'meta' file of the package instead of jumping through
        # VCS hoops to find out.
        log "$pkg" " "
        pkg_query_meta "$pkg" maintainer && continue

        cd "$pkg"
        # Use pkg_vcs_info to find out the repository type, but don't save
        # repository information to the repository cache file.
        repo_type=$(CPT_REPO_CACHE=0 pkg_vcs_info)
        repo_type=${repo_type##*:}

        # We use the latest author who made a change to the version file to
        # identify the maintainer of a package.
        case $repo_type in
            git) git log -1 --format='%an <%ae>' version ;;
            fossil) fossil time par cur -n 1 -p version -F "%a" | sed \$d ;;
            hg) hg log -l1 -T '{user}\n' -- version ;;
            *) out "Maintainer information not available"
        esac
    done
done