bisect: improve error message of 'bisect log' while not bisecting

'git bisect log' is implemented by a direct invocation of 'cat
"$GIT_DIR/BISECT_LOG"', without any sanity checks.  Consequently,
running 'git bisect log' while not bisecting leads to an error,
because the bisect logfile doesn't exists.  The accompanying error
message

  cat: /path/to/repo/.git/BISECT_LOG: No such file or directory

is neither very helpful nor very friendly.

Instead of blindly trying to cat the log file, first check whether
there is a bisection going on (i.e. the bisect logfile exists), and
die with a more appropriate error message when not.

Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
SZEDER Gábor 2010-10-10 23:48:56 +02:00 committed by Junio C Hamano
parent c752e7f3e8
commit 412ff738ad

View File

@ -412,6 +412,10 @@ bisect_run () {
done
}
bisect_log () {
test -s "$GIT_DIR/BISECT_LOG" || die "We are not bisecting."
cat "$GIT_DIR/BISECT_LOG"
}
case "$#" in
0)
@ -438,7 +442,7 @@ case "$#" in
replay)
bisect_replay "$@" ;;
log)
cat "$GIT_DIR/BISECT_LOG" ;;
bisect_log ;;
run)
bisect_run "$@" ;;
*)