Commits Lead to Broken Builds

Purpose

Commits Lead to Broken Builds shows the ratio of commits that led to broken builds compared to the total amount of commits at a specific date. The default time depth is 1 month up to the current date. 

In order to change the default “time depth” value, you should look at “How many last values to display”(days) in Metric Settings

How metric helps

It indicates the effectiveness of code quality guards. The greater this percentage the worse. Metric may help identify build problems as they occur, pointing to the source of the error.

How it works

Chart Overview

The chart shows % of commits which led to broken builds - Axis Y per job/pipeline day by day - Axis X. Legend on the top of the chart gives the latest value for each configured job/pipeline.

Calculation Formula

Commits led to broken builds = Ncommit_fail/Ncommit_all * 100 %,

where

Ncommit_fail - number of commits in failed builds

Ncommit_all - number of commits in all builds

Example for a particular date on a timeline: 

Given: total # of all builds on that day

5

Given: # of failed builds

2

Given: # of commits in all builds

15

Given: # of commits in failed builds

3

Calculated: Commits led to broken builds %

3 / 15 = 0.2 = 20% = Amber

RAG thresholds: Red - metric value > 50%, Amber - metric value > 10%, otherwise Green.

Data Source

Data for the metric can be retrieved from Jenkins/GitLab CI. When using Jenkins make sure Git plug in is installed.

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