Add self-update command to refresh miaur from Git

Introduce `miaur self-update` / `--self-update` that clones RepoUrl@Branch, detects user vs system install prefix, and reinstalls in place. Configurable via conf/env; supports --noconfirm, --repo-url, and --branch. Co-authored-by: Frank Vitrano <WHC2006@users.noreply.github.com>
2026-07-23 14:44:24 +00:00
parent bba71040d6
commit a4f4767c47
11 changed files with 293 additions and 8 deletions
@@ -0,0 +1,146 @@
+#!/usr/bin/env bash
+# Self-update miaur from its Git repository
+
+# Detect install prefix from the running binary location.
+# Prints: user|/path/prefix   or   system|/path/prefix
+miaur_detect_prefix() {
+	case "$MIAUR_HOME" in
+	"${HOME}/.local/share/miaur")
+		printf 'user|%s\n' "${HOME}/.local"
+		;;
+	/usr/local/share/miaur)
+		printf 'system|%s\n' /usr/local
+		;;
+	*)
+		# Dev checkout or custom layout — default to a user install
+		printf 'user|%s\n' "${HOME}/.local"
+		;;
+	esac
+}
+
+# Read MIAUR_VERSION=... from a common.sh path
+_miaur_read_version_file() {
+	local file=$1
+	[[ -f $file ]] || return 1
+	local line
+	line=$(grep -E '^MIAUR_VERSION=' "$file" | head -n1) || return 1
+	line=${line#MIAUR_VERSION=}
+	line=${line#\"}
+	line=${line%\"}
+	line=${line#\'}
+	line=${line%\'}
+	printf '%s\n' "$line"
+}
+
+# Install tree from SRC into PREFIX (user|system via $1 mode)
+_miaur_install_tree() {
+	local mode=$1
+	local prefix=$2
+	local src=$3
+	local share="${prefix}/share/miaur"
+	local binlink="${prefix}/bin/miaur"
+
+	[[ -f $src/miaur && -d $src/lib ]] || die "incomplete source tree: $src"
+
+	_run() {
+		if [[ $mode == system ]]; then
+			as_root "$@"
+		else
+			"$@"
+		fi
+	}
+
+	msg "Installing to ${share}"
+	_run mkdir -p "$share" "${prefix}/bin"
+	_run rm -rf "$share"
+	_run mkdir -p "$share"
+	_run cp -a "$src/miaur" "$src/lib" "$share/"
+	if [[ -d $src/completions ]]; then
+		_run cp -a "$src/completions" "$share/"
+	fi
+	if [[ -d $src/config ]]; then
+		_run cp -a "$src/config" "$share/"
+	fi
+	_run chmod 755 "$share/miaur"
+	_run ln -sfn "$share/miaur" "$binlink"
+
+	if [[ -d $src/completions ]]; then
+		if [[ $mode == user ]]; then
+			mkdir -p "${HOME}/.local/share/bash-completion/completions"
+			cp -f "$src/completions/miaur.bash" \
+				"${HOME}/.local/share/bash-completion/completions/miaur" 2>/dev/null || true
+		else
+			if [[ -d /usr/share/bash-completion/completions ]]; then
+				as_root cp -f "$src/completions/miaur.bash" \
+					/usr/share/bash-completion/completions/miaur 2>/dev/null || true
+			fi
+		fi
+	fi
+
+	printf '%s\n' "$binlink"
+}
+
+# Fetch latest sources into a temp dir; prints path to clone
+_miaur_fetch_latest() {
+	local repo=$1
+	local branch=$2
+	local tmp
+	tmp=$(mktemp -d)
+	# Caller cleans up via SELF_UPDATE_TMP
+	SELF_UPDATE_TMP=$tmp
+	msg2 "Cloning ${repo} (${branch})..."
+	${MIAUR_GIT} clone --depth 1 --branch "$branch" "$repo" "$tmp/miaur" \
+		|| die "failed to clone ${repo} (branch ${branch}); set RepoUrl / MIAUR_REPO if you forked"
+	[[ -f $tmp/miaur/miaur && -d $tmp/miaur/lib ]] || die "cloned tree looks incomplete"
+	printf '%s\n' "$tmp/miaur"
+}
+
+cmd_self_update() {
+	need_cmd git
+
+	local repo=${MIAUR_REPO:-https://github.com/WHC2006/miaur.git}
+	local branch=${MIAUR_BRANCH:-main}
+	local info mode prefix
+	info=$(miaur_detect_prefix)
+	mode=${info%%|*}
+	prefix=${info#*|}
+
+	local old_ver=${MIAUR_VERSION}
+	msg "Current version: v${old_ver}"
+	msg2 "Install prefix: ${prefix} (${mode})"
+	msg2 "Source: ${repo} @ ${branch}"
+
+	if [[ $MIAUR_HOME != "${prefix}/share/miaur" ]]; then
+		warn "Running from ${MIAUR_HOME}; update will install into ${prefix}/share/miaur"
+	fi
+
+	confirm_ask "Update miaur from Git?" || {
+		warn "Cancelled by user"
+		return 1
+	}
+
+	SELF_UPDATE_TMP=
+	# shellcheck disable=SC2064
+	trap '[[ -n ${SELF_UPDATE_TMP:-} ]] && rm -rf "$SELF_UPDATE_TMP"; sudoloop_stop' RETURN
+
+	local src new_ver binlink
+	src=$(_miaur_fetch_latest "$repo" "$branch")
+	new_ver=$(_miaur_read_version_file "$src/lib/common.sh") || new_ver=unknown
+
+	if [[ $new_ver == "$old_ver" ]]; then
+		msg "Remote reports the same version (v${new_ver}); reinstalling anyway"
+	else
+		msg "Updating: v${old_ver} -> v${new_ver}"
+	fi
+
+	if [[ $mode == system ]]; then
+		sudoloop_start
+	fi
+
+	binlink=$(_miaur_install_tree "$mode" "$prefix" "$src")
+
+	msg "Done: ${binlink}"
+	if [[ -x $binlink ]]; then
+		"$binlink" -V
+	fi
+}