diff options
Diffstat (limited to 'Documentation/git-bisect.txt')
| -rw-r--r-- | Documentation/git-bisect.txt | 40 |
1 files changed, 34 insertions, 6 deletions
diff --git a/Documentation/git-bisect.txt b/Documentation/git-bisect.txt index 1072fb87d1..8b9d61a8a4 100644 --- a/Documentation/git-bisect.txt +++ b/Documentation/git-bisect.txt @@ -16,8 +16,9 @@ The command takes various subcommands, and different options depending on the subcommand: git bisect start [<bad> [<good>...]] [--] [<paths>...] - git bisect bad <rev> - git bisect good <rev> + git bisect bad [<rev>] + git bisect good [<rev>...] + git bisect skip [<rev>...] git bisect reset [<branch>] git bisect visualize git bisect replay <logfile> @@ -91,7 +92,16 @@ During the bisection process, you can say $ git bisect visualize ------------ -to see the currently remaining suspects in `gitk`. +to see the currently remaining suspects in `gitk`. `visualize` is a bit +too long to type and `view` is provided as a synonym. + +If `DISPLAY` environment variable is not set, `git log` is used +instead. You can even give command line options such as `-p` and +`--stat`. + +------------ +$ git bisect view --stat +------------ Bisect log and bisect replay ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ @@ -134,6 +144,20 @@ $ git reset --hard HEAD~3 # try 3 revs before what Then compile and test the one you chose to try. After that, tell bisect what the result was as usual. +Bisect skip +~~~~~~~~~~~~ + +Instead of choosing by yourself a nearby commit, you may just want git +to do it for you using: + +------------ +$ git bisect skip # Current version cannot be tested +------------ + +But computing the commit to test may be slower afterwards and git may +eventually not be able to tell the first bad among a bad and one or +more "skip"ped commits. + Cutting down bisection by giving more parameters to bisect start ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ @@ -167,14 +191,18 @@ $ git bisect run my_script ------------ Note that the "run" script (`my_script` in the above example) should -exit with code 0 in case the current source code is good and with a -code between 1 and 127 (included) in case the current source code is -bad. +exit with code 0 in case the current source code is good. Exit with a +code between 1 and 127 (inclusive), except 125, if the current +source code is bad. Any other exit code will abort the automatic bisect process. (A program that does "exit(-1)" leaves $? = 255, see exit(3) manual page, the value is chopped with "& 0377".) +The special exit code 125 should be used when the current source code +cannot be tested. If the "run" script exits with this code, the current +revision will be skipped, see `git bisect skip` above. + You may often find that during bisect you want to have near-constant tweaks (e.g., s/#define DEBUG 0/#define DEBUG 1/ in a header file, or "revision that does not have this commit needs this patch applied to |