From 8317c992cc77f0f63029ccf1a1af0b3db3f50f6a Mon Sep 17 00:00:00 2001 From: classabbyamp Date: Sun, 18 Feb 2024 03:15:55 -0500 Subject: [PATCH] common/chroot-style/uchroot.sh: check if xbps-uchroot is executable ... and show a friendly error message This can be a common failure mode when using `-t` if not in the group `xbps-uchroot` is owned by, because it is SUID. Previously, the error was the cryptic message `ERROR: prctl SECBIT_NOROOT (Operation not permitted)`. --- common/chroot-style/uchroot.sh | 21 ++++++++++++++++++--- 1 file changed, 18 insertions(+), 3 deletions(-) diff --git a/common/chroot-style/uchroot.sh b/common/chroot-style/uchroot.sh index 5fe47eb9f8bcb..e24ceac308be0 100755 --- a/common/chroot-style/uchroot.sh +++ b/common/chroot-style/uchroot.sh @@ -9,12 +9,27 @@ readonly EXTRA_ARGS="$4" readonly CMD="$5" shift 5 -if ! command -v xbps-uchroot >/dev/null 2>&1; then +msg_red() { + # error messages in bold/red + [ -n "$NOCOLORS" ] || printf >&2 "\033[1m\033[31m" + printf "=> ERROR: %s\\n" "$@" >&2 + [ -n "$NOCOLORS" ] || printf >&2 "\033[m" +} + +readonly XBPS_UCHROOT_CMD="$(command -v xbps-uchroot 2>/dev/null)" + +if [ -z "$XBPS_UCHROOT_CMD" ]; then + msg_red "could not find xbps-uchroot" + exit 1 +fi + +if ! [ -x "$XBPS_UCHROOT_CMD" ]; then + msg_red "xbps-uchroot is not executable. Are you in the $(stat -c %G "$XBPS_UCHROOT_CMD") group?" exit 1 fi -if [ -z "$MASTERDIR" -o -z "$DISTDIR" ]; then - echo "$0 MASTERDIR/DISTDIR not set" +if [ -z "$MASTERDIR" ] || [ -z "$DISTDIR" ]; then + msg_red "$0: MASTERDIR/DISTDIR not set" exit 1 fi