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Diffstat (limited to 'wrapper/inner.sh.m4')
| -rw-r--r-- | wrapper/inner.sh.m4 | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/wrapper/inner.sh.m4 b/wrapper/inner.sh.m4 new file mode 100644 index 0000000..8444bd6 --- /dev/null +++ b/wrapper/inner.sh.m4 @@ -0,0 +1,154 @@ +#!/usr/bin/env bash +# rvs inner.sh - The main RVS program +# Copyright (C) 2009-2010, 2015 Luke Shumaker +# +# This file is part of rvs. +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU Affero General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU Affero General Public License for more details. +# +# You should have received a copy of the GNU Affero General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. +set -u + +m4_include(config.sh) + +declare -r varname_REPO="${PACKAGE^^}_REPO" +declare -r varname_EXEC_PATH="${PACKAGE^^}_EXEC_PATH" + +declare -r program_name="$1"; shift + + + +_() { + if type gettext &>/dev/null; then + TEXTDOMAINDIR=$localedir gettext "$pkgtextdomain" "$1"; + else + echo "$1"; + fi +} + +sighandler_exit() { + local signal=$1; shift + echo + error 0 "$@" + trap -- "$signal" + kill -"$signal" "$$" +} + +install_sighandlers() { + set -E + for signal in TERM HUP QUIT; do + trap "signalhandler_exit $signal '%s signal cought. Exiting...'" $signal + done + trap 'signalhandler_exit INT "Aborted by user. Exiting..."' INT + trap 'kill -USR1 "$$"' ERR +} + +# Like GLibC's error(3), but call gettext on the format string +error() { + >&2 printf "%s: $(_ "$2")\n" "$program_name" "${@:3}" + [[ $1 -eq 0 ]] || exit $1 +} + +errusage() { + >&2 printf "$(_ "$2")\n" "$program_name" "${@:3}" + [[ $1 -eq 0 ]] || exit $1 +} + +_runcmd() { + [[ $# -ge 1 ]] || errusage 1 'Usage: %q <command> [<args>]' + local cmd=$1; shift + local args_str='' + [[ $# -eq 0 ]] || printf -v args_str '%q ' "$@" + + local exec_path="${!varname_EXEC_PATH:-$pkglibexecdir}" + + shopt -s nullglob + local files=("${exec_path}"/modules/*/"$cmd") + if [[ ${#files[@]} -eq 0 ]]; then + error 127 '%s: Not a %s command' "$cmd" "$PACKAGE" + fi + files=("${files[@]#"${exec_path/modules/}"}") + + local output_dir + trap '[ -z "${output_dir:-}" ] || rm -rf -- "$TMPDIR"' EXIT + output_dir="$(mktemp -dt "${PACKAGE}.XXXXXXXXXX")" + + local repo + repo="$(_repo)" + export "${varname_REPO}=${repo}" + + local cwd + printf -v cwd '%q' "$PWD" + + make -j1 \ + -f "$exec_path/runcmd.mk" \ + -C "$output_dir" \ + ARGS="$args_str" \ + EXEC_PATH="$exec_path" \ + CWD="$cwd" \ + -- "${files[@]}" + exit $? +} + +_repo() { + [[ $# -ne 0 ]] || errusage 1 'Usage: %q repo' + if [ -z "${!varname_REPO:-}" ]; then # we aren't getting a value from then env + local repo=".${PACKAGE,,}" + + # [------can ascend-----] && ! [-not found repo--] + while [ "$PWD" != "$OLDPWD" ] && ! [ -d "$PWD/$repo" ]; do + cd .. + done + + if [ -d "$PWD/$repo" ]; then + # we found a repository + printf '%s\n' "$PWD/$repo" + else + # we didn't find a repository + error 128 "No %s repository found" "$PACKAGE" + fi + else + printf '%s\n' "${!varname_REPO}" + fi +} + +_init() { + [[ $# -gt 1 ]] || errusage 1 'Usage: %q init [directory]' + local dir="${1:-$PWD}" + mkdir -p -- "$dir" + cd "$dir" + repo="$(_repo 2> /dev/null)" || true + if [ -n "${repo:-}" ]; then + _error 129 "Repository already exists at \`%s'" "$repo" + fi + export "$varname_REPO=$PWD/.${PACKAGE,,}" + mkdir "${!varname_REPO}" + _runcmd init "$dir" +} + +main() { + install_sighandlers + [[ $# -ge 1 ]] || error 'No command specified';; + export "${PACKAGE^^}=$program_name" + + local cmd=$1; shift + case "$cmd" in + repo) _repo "$@";; + init) _init "$@";; + *) _runcmd "$cmd" "$@";; + esac +} + +main "$@" + +# Copy/Paste Virus 1.3c Please copy and paste this text anywhere. Track +# its progress by searching for this MD5#f7eac285ebfe21c4587bfebb9582f90d |