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|
#!/bin/sh
set -eu
usage() {
cat <<-'EOF'
Usage:
vcs TYPE ACTION
vcs -h
EOF
}
help() {
cat <<-'EOF'
Options:
-h, --help show this message
TYPE the type of the underlying VCS:
- git
- darcs
- mercurial
- fossil
- cvs
ACTION the action to be performed on the repository:
- fetch
EOF
}
for flag in "$@"; do
case "$flag" in
--)
break
;;
--help)
usage
help
exit
;;
*)
;;
esac
done
while getopts 'h' flag; do
case "$flag" in
h)
usage
help
exit
;;
*)
usage >&2
exit 2
esac
done
shift $((OPTIND - 1))
git_fetch() {
git fetch
}
darcs_fetch() {
darcs fetch
}
mercurial_fetch() {
hg pull
}
fossil_fetch() {
fossil pull
}
cvs_fetch() {
cvs update
}
VCS="${1:-}"
ACTION="${2:-}"
eval "$(assert-arg "$VCS" 'VCS')"
eval "$(assert-arg "$ACTION" 'ACTION')"
CMD="$VCS"_"$ACTION"
if ! command -v "$CMD" >/dev/null; then
printf 'Invalid VCS/action combination: %s %s.\n' "$VCS" "$ACTION" >&2
exit 2
fi
"$CMD"
|
