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Git - Bisect - Revision history
2026-05-13T06:46:02Z
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Bernard Szlachta at 10:04, 4 December 2012
2012-12-04T10:04:48Z
<p></p>
<p><b>New page</b></p><div>{{Cat|Git}}<br />
<br />
<source lang="bash"><br />
# Initiallize repo<br />
cd /g<br />
mkdir /g/tmp<br />
cd tmp<br />
mkdir repo<br />
cd repo/<br />
git init <br />
<br />
<br />
echo "exit 0" > code.sh<br />
git add code.sh; <br />
git commit -a -m "c0"<br />
<br />
# Genereate 10 revision which do not spoil the script<br />
for i in $(seq 10) ; do echo "# round 1 $i" >> code.sh ; git commit -a -m "c$i" ; done<br />
<br />
# Spoil the script<br />
echo "exit 1" > code.sh<br />
git commit -a -m "bug revision"<br />
<br />
# generate 20 revisions which do not spoil already spoiled script<br />
for i in $(seq 20) ; do echo "# round 2 $i" >> code.sh ; git commit -a -m "c$i" ; done<br />
<br />
<br />
<br />
git bisect start<br />
git bisect bad<br />
# mark first revision as good<br />
git bisect good 6d34b <br />
<br />
git bisect run bash code.sh<br />
<br />
</source><br />
<br />
running bash code.sh<br />
Bisecting: 7 revisions left to test after this (roughly 3 steps)<br />
[65e896df0fb1a865e8678bc2145f1621b802acfd] c7<br />
running bash code.sh<br />
Bisecting: 3 revisions left to test after this (roughly 2 steps)<br />
[480515f739bf6dd9a2a6ab47d8626aea805d4880] bug revision<br />
running bash code.sh<br />
Bisecting: 1 revision left to test after this (roughly 1 step)<br />
[52de39416f0f93a1b95f744de05699baa85ab224] c9<br />
running bash code.sh<br />
Bisecting: 0 revisions left to test after this (roughly 0 steps)<br />
[22ef2aaf18c69aa420534303ceeec2078154357c] c10<br />
running bash code.sh<br />
480515f739bf6dd9a2a6ab47d8626aea805d4880 is the first bad commit<br />
commit 480515f739bf6dd9a2a6ab47d8626aea805d4880<br />
Author: Your Name <you@example.com><br />
Date: Tue Dec 4 00:02:09 2012 +0000<br />
<br />
bug revision<br />
<br />
:100644 100644 68d815b9ee3a9b590f2be9db2adfe37d715f964f 379a4c986e3265e08e9da42c56ec747619c56a33 M code.sh<br />
bisect run success</div>
Bernard Szlachta