MemberCodeChurn reduction function computes telemetry stream(s) representing project member's churn. It can be lines added or lines deleted.
Table 28.14.
| Parameter | Description | Default |
|---|---|---|
| mode | One of 'LinesAdded' or 'LinesDeleted' | LinesAdded |
| filePattern | Ant-like file pattern specifying the files to be included in computation. | ** |
| isCumulative | If true, an cumulative version of telemetry stream is returned. | false |
| memberEmail | If '*' is supplied, then a collection of telemetry streams is return, with one telemetry stream for each member in the project. If a member email is supplied, then only one telemetry stream is returned representing this member's active time in the project. | * |
Example 28.21. Net Code Churn for One Single Member
streams MemberNetCodeChurnStream(filePattern, memberEmail) = {
"Added minus Deleted",
MemberCodeChurn("LinesAdded", filePattern, "false", memberEmail) -
MemberCodeChurn("LinesDeleted", filePattern, "false", memberEmail)
};
y-axis yAxis(label) = {label};
chart MemberNetCodeChurnChart(filePattern, memberEmail) = {
"Lines Added minus Lines Deleted",
(MemberNetCodeChurnStream(filePattern, memberEmail), yAxis("Lines Added - Lines Deleted"))
};
draw MemberNetCodeChurnChart("**/*.java", "undisclosed@hawaii.edu");
This chart shows net code churn for one of the project members. Net code churn is defined as lines added minus lines deleted. Note the parameter value passed to the 'memberEmail' parameter.
Example 28.22. Net Code Churn for each Member of the Project
streams MemberNetCodeChurnStream(filePattern, memberEmail) = {
"Added minus Deleted",
MemberCodeChurn("LinesAdded", filePattern, "false", memberEmail) -
MemberCodeChurn("LinesDeleted", filePattern, "false", memberEmail)
};
y-axis yAxis(label) = {label};
chart MemberNetCodeChurnChart(filePattern, memberEmail) = {
"Lines Added minus Lines Deleted",
(MemberNetCodeChurnStream(filePattern, memberEmail), yAxis("Lines Added - Lines Deleted"))
};
draw MemberNetCodeChurnChart("**/*.java", "*");
This chart shows net code churn for each member of the project. Net code churn is defined as lines added minus lines deleted. Note the parameter value passed to the 'memberEmail' parameter.