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authorJon Seymour <jon.seymour@gmail.com>2011-08-04 22:00:57 +1000
committerJunio C Hamano <gitster@pobox.com>2011-08-04 15:32:34 -0700
commit4764f46492b0849ce3cf2f527978acd9c2d5f7e6 (patch)
treed743dff39c936708497e0a510b3531835edecac4 /git-bisect.sh
parentb35acb53458d0f99ba2400b902980b35e5acc2d3 (diff)
downloadgit-4764f46492b0849ce3cf2f527978acd9c2d5f7e6.tar.gz
bisect: move argument parsing before state modification.
Currently 'git bisect start' modifies some state prior to checking that its arguments are valid. This change moves argument validation before state modification with the effect that state modification does not occur unless argument validations succeeds. An existing test is changed to check that new bisect state is not created if arguments are invalid. A new test is added to check that existing bisect state is not modified if arguments are invalid. Signed-off-by: Jon Seymour <jon.seymour@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'git-bisect.sh')
-rwxr-xr-xgit-bisect.sh66
1 files changed, 33 insertions, 33 deletions
diff --git a/git-bisect.sh b/git-bisect.sh
index b2186a8627..20f6dd5625 100755
--- a/git-bisect.sh
+++ b/git-bisect.sh
@@ -60,6 +60,39 @@ bisect_autostart() {
bisect_start() {
#
+ # Check for one bad and then some good revisions.
+ #
+ has_double_dash=0
+ for arg; do
+ case "$arg" in --) has_double_dash=1; break ;; esac
+ done
+ orig_args=$(git rev-parse --sq-quote "$@")
+ bad_seen=0
+ eval=''
+ while [ $# -gt 0 ]; do
+ arg="$1"
+ case "$arg" in
+ --)
+ shift
+ break
+ ;;
+ *)
+ rev=$(git rev-parse -q --verify "$arg^{commit}") || {
+ test $has_double_dash -eq 1 &&
+ die "$(eval_gettext "'\$arg' does not appear to be a valid revision")"
+ break
+ }
+ case $bad_seen in
+ 0) state='bad' ; bad_seen=1 ;;
+ *) state='good' ;;
+ esac
+ eval="$eval bisect_write '$state' '$rev' 'nolog'; "
+ shift
+ ;;
+ esac
+ done
+
+ #
# Verify HEAD.
#
head=$(GIT_DIR="$GIT_DIR" git symbolic-ref -q HEAD) ||
@@ -98,39 +131,6 @@ bisect_start() {
bisect_clean_state || exit
#
- # Check for one bad and then some good revisions.
- #
- has_double_dash=0
- for arg; do
- case "$arg" in --) has_double_dash=1; break ;; esac
- done
- orig_args=$(git rev-parse --sq-quote "$@")
- bad_seen=0
- eval=''
- while [ $# -gt 0 ]; do
- arg="$1"
- case "$arg" in
- --)
- shift
- break
- ;;
- *)
- rev=$(git rev-parse -q --verify "$arg^{commit}") || {
- test $has_double_dash -eq 1 &&
- die "$(eval_gettext "'\$arg' does not appear to be a valid revision")"
- break
- }
- case $bad_seen in
- 0) state='bad' ; bad_seen=1 ;;
- *) state='good' ;;
- esac
- eval="$eval bisect_write '$state' '$rev' 'nolog'; "
- shift
- ;;
- esac
- done
-
- #
# Change state.
# In case of mistaken revs or checkout error, or signals received,
# "bisect_auto_next" below may exit or misbehave.