guix-install.sh: Fix chk_require exiting without warning.

* etc/guix-install.sh (chk_require): Because of the set -e option, Bash was
exiting when the command `command -v "$c" &>/dev/null' was running on its
own. Instead, we now test the command and accumulate warning messages in a
single statement by chaining the command with a logical OR.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
This commit is contained in:
Maxim Cournoyer 2018-05-18 10:51:29 -04:00 committed by Ludovic Courtès
parent 428adbc2c4
commit 593fe73667
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@ -86,9 +86,7 @@ chk_require()
_debug "--- [ $FUNCNAME ] ---"
for c in ${cmds[@]}; do
command -v "$c" &>/dev/null
[ "$?" -eq "1" ] &&
warn+=("$c")
command -v "$c" &>/dev/null || warn+=("$c")
done
[ "${#warn}" -ne 0 ] &&