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| -rw-r--r-- | _tils/2020-11-12-git-bisect-automation.md | 33 |
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diff --git a/_tils/2020-11-12-git-bisect-automation.md b/_tils/2020-11-12-git-bisect-automation.md new file mode 100644 index 0000000..ff3ed34 --- /dev/null +++ b/_tils/2020-11-12-git-bisect-automation.md @@ -0,0 +1,33 @@ +--- + +title: Git bisect automation + +date: 2020-11-12 2 + +layout: post + +lang: en + +ref: git-bisect-automation + +--- + +It is good to have an standardized way to run builds and tests on the repository +of a project, so that you can find when a bug was introduced by using +`git bisect run`. + +I've already been in the situation when a bug was introduced and I didn't know +how it even was occurring, and running Git bisect over hundreds of commits to +pinpoint the failing commit was very empowering: + +``` +$ GOOD_COMMIT_SHA=e1fd0a817d192c5a5df72dd7422e36558fa78e46 +$ git bisect start HEAD $GOOD_COMMIT_SHA +$ git bisect run sn -c './build.sh && ./run-failing-case.sh' +``` + +Git will than do a binary search between the commits, and run the commands you +provide it with to find the failing commit. + +Instead of being afraid of doing a bisect, you should instead leverage it, and +make Git help you dig through the history of the repository to find the bad code. |