56 lines
1.7 KiB
Bash
56 lines
1.7 KiB
Bash
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#!/bin/bash
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set -euo pipefail
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IFS=$'\n'
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error() {
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printf 'Error: %s\n' "$1" >&2
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exit 1
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}
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arguments() {
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if [ "$1" -ne "$2" ]; then
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error "expected $1 argument(s), got $2"
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fi
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}
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valid_repo_name() {
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# If you modify this, make sure that "git-shell-commands" cannot be accessed.
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# Currently this is ensured by forbidding / and enforcing a .git suffix.
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case "$1" in
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*" "*) error "name may not contain spaces"; ;;
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*"*"*) error "name may not contain asterisks (*)"; ;;
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*'\'*) error 'name may not contain backslashes (\)'; ;;
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*'/'*) error "name may not contain slashes (/)"; ;;
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*\'*) error "name may not contain apostrophes (')"; ;;
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*\"*) error 'name may not contain quotes (")'; ;;
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*$'\t'*) error "name may not contain tabs"; ;;
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*$'\n'*) error "name may not contain newlines"; ;;
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.*) error "name may not start with a dot"; ;;
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.git|"") error "name may not be empty"; ;;
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*.git) printf '%s' "$1"; ;;
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*) printf '%s' "$1.git"; ;;
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esac
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}
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repo_name_new() {
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# Do not remove the extra `|| exit 1`!
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# Due to bash weirdness, `exit 1` does not propagate through more than one $(…) even with set -e
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local repo_name="$(valid_repo_name "$1")" || exit 1
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# `test` dereferences symlinks, so explicit -L is necessary
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if [ -e "$repo_name" -o -L "$repo_name" ]; then
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error "'$repo_name' already exists."
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fi
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printf '%s' "$repo_name"
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}
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repo_name_existing() {
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# Do not remove the extra `|| exit 1`!
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# Due to bash weirdness, `exit 1` does not propagate through more than one $(…) even with set -e
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local repo_name="$(valid_repo_name "$1")" || exit 1
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# `test` dereferences symlinks, so explicit -L is necessary
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if ! [ -e "$repo_name" -o -L "$repo_name" ]; then
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error "'$repo_name' does not exist."
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fi
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printf '%s' "$repo_name"
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}
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