A non-zero exit status will be returned on one or more failure

Tool will now use date-based versioning scheme: '%Y%m%d.N', where N will
get incremented if multiple releases happen during a day. This is not done
automatically currently.

Some additional smaller changes were done to support exit status and
versioning.

3 files changed, 54 insertions, 8 deletions

diff --git a/Makefile b/Makefile
index 04b2a30..25e2cda 100644
--- a/Makefile
+++ b/Makefile
@@ -1,13 +1,19 @@
+TODAY=1
 PREFIX?=/usr/local
 BINDIR?=$(PREFIX)/bin
 DATADIR?=$(PREFIX)/share
-MANDIR?=$(DATADIR)/man/man1
+MANDIR?=$(DATADIR)/man
+MAN1DIR?=$(MANDIR)/man1
 LIBDIR?=$(PREFIX)/lib
 SYSDDIR?=$(LIBDIR)/systemd/system
 USERSDIR?=$(LIBDIR)/sysusers.d
 
 all: mirror
 
+%: %.sh
+	sed s/@VERSION@/`git rev-list -1 --date=format:%Y%m%d --pretty=%ad --no-commit-header HEAD`.$(TODAY)/g <$< >$@
+	chmod +x $@
+
 clean:
 	rm -f mirror
 
@@ -17,14 +23,14 @@ install: all
 	mkdir -p $(DESTDIR)$(SYSDDIR)
 	mkdir -p $(DESTDIR)$(USERSDIR)
 	cp -f mirror $(DESTDIR)$(BINDIR)/mirror
-	cp -f mirror.1 $(DESTDIR)$(MANDIR)/mirror.1
+	cp -f mirror.1 $(DESTDIR)$(MAN1DIR)/mirror.1
 	cp -f mirror.timer $(DESTDIR)$(SYSDDIR)/mirror.timer
 	cp -f mirror.service $(DESTDIR)$(SYSDDIR)/mirror.service
 	cp -f mirror.conf $(DESTDIR)$(USERSDIR)/mirror.conf
 
 uninstall:
 	rm -f $(DESTDIR)$(BINDIR)/mirror
-	rm -f $(DESTDIR)$(MANDIR)/mirror.1
+	rm -f $(DESTDIR)$(MAN1DIR)/mirror.1
 	rm -f $(DESTDIR)$(SYSDDIR)/mirror.timer
 	rm -f $(DESTDIR)$(SYSDDIR)/mirror.service
 	rm -f $(DESTDIR)$(USERSDIR)/mirror.conf
diff --git a/mirror.1 b/mirror.1
index 3fdeea1..a7af5b8 100644
--- a/mirror.1
+++ b/mirror.1
@@ -1,9 +1,10 @@
-.TH mirror 1 "2023-04-15"
+.TH mirror 1 "2023-12-28"
 .SH NAME
 mirror \- copies remote git repositories in bulk
 .SH SYNOPSIS
 .SY mirror
 .RI [ list ]
+.SY mirror\ -v
 .YS
 .SH DESCRIPTION
 This script will read
@@ -14,7 +15,14 @@ provided
 will default to
 .B repositories.list
 in the current working directory.
+.P
+With
+.B -v
+option the script will print version information to standard output and terminate immediately after.
 .SH EXIT STATUS
-Script is not expected to provide a useful exit status as of now.
+Exit status is zero if all repositories in the list have been mirrored successfully or if
+.B -v
+option was used. If one or more mirrors fail or an unknown command-line option is provided, a non-zero status is
+returned.
 .SH SEE ALSO
 .BR git (1)
diff --git a/mirror.sh b/mirror.sh
index 4ded042..49a3057 100644
--- a/mirror.sh
+++ b/mirror.sh
@@ -1,4 +1,16 @@
 #!/bin/sh
+_version() {
+	echo "@VERSION@"
+	exit 0
+}
+
+
+_usage() {
+	echo "Usage: $0 [-v] [list]"
+	exit 1
+} >&2
+
+
 _path() {
 	local path="$(url %h%p $1)"
 	case "${path}" in
@@ -11,14 +23,34 @@ _path() {
 _update() {
 	local repo="$1"
 	local path="$(_path ${repo})"
-	test -d "${path}" || git clone -q --mirror "${repo}" "${path}"
-	git -C "${path}" fetch -q && echo "Updated ${path}" || echo "Failed to update ${path}"
+	test -d "${path}" || git clone -q --mirror "${repo}" "${path}" || return 1  # TODO: Check if remotes are the same?
+	if git -C "${path}" fetch -q; then
+		echo "Updated ${path}"
+	else
+		echo "Failed to update ${path}" >&2
+		return 1
+	fi
 }
 
 
+while getopts :v opt; do
+	case ${opt} in
+		v) _version;;
+		?) _usage;;
+	esac
+done
+shift $(( ${OPTIND} - 1 ))
 list="${1:-repositories.list}"
 test -f "${list}" || exit 1
+pids=
 while read repo; do
 	_update "${repo}" &
+	pids="${pids} $!"
 done <"${list}"
-wait
+failed=0
+for pid in ${pids}; do
+	if ! wait ${pid}; then
+		failed=1
+	fi
+done
+exit ${failed}