feat(version): use exit code for check to indicate out-of-date versions

It can be handy to have an exit code that allows better status
indication or chaining.

On exit, return one of the following codes:

- 0: Normal exit condition, all checked versions are up-to-date
- 1: Unknown cause of failure
- 2: Normal exit condition, but there are out-of-date versions
- 3: Failed to run some version checks

Component: pkgctl version check
Signed-off-by: Levente Polyak <anthraxx@archlinux.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/lib/version.sh b/src/lib/version.sh
index 14cd810..4340fca 100644
--- a/src/lib/version.sh
+++ b/src/lib/version.sh
@@ -47,7 +47,7 @@ pkgctl_version() {
 				# shellcheck source=src/lib/version/check.sh
 				source "${_DEVTOOLS_LIBRARY_DIR}"/lib/version/check.sh
 				pkgctl_version_check "$@"
-				exit 0
+				exit $?
 				;;
 			upgrade)
 				_DEVTOOLS_COMMAND+=" $1"
@@ -55,7 +55,7 @@ pkgctl_version() {
 				# shellcheck source=src/lib/version/upgrade.sh
 				source "${_DEVTOOLS_LIBRARY_DIR}"/lib/version/upgrade.sh
 				pkgctl_version_upgrade "$@"
-				exit 0
+				exit $?
 				;;
 			*)
 				die "invalid argument: %s" "$1"