heatmap-weekhour: commit week hour heatmap

[bagder]

Below P10 shows as nothing, the other limits are P20. P40, P60 and P80 making 5 shades of green.

Preview:

[bagder]

I wonder if I can make git output the day + hour itself so I can avoid doing 40K date invokes...

[soliton-]

I wonder if I can make git output the day + hour itself so I can avoid doing 40K date invokes...

You could use: git log --no-color --date='format:%s %u %H'

[bagder]

You could use: git log --no-color --date='format:%s %u %H'

I want them in UTC, so I ended up with:

TZ=UTC git log --oneline --date='format-local:%w %H' --decorate --format='format:%ad'

[bagder]

This actually uses the time when the commit was authored, not committed. I should probably clarify that somehow in the name...

[Copilot]

Pull request overview

Adds a new “commit week hour” (UTC weekday × hour) heatmap graph to the stats dashboard, including CSV generation and build wiring so it can be produced alongside existing graphs.

Changes:

• Introduces heatmap-weekhour.pl to compute weekday/hour buckets and emit a leveled CSV.
• Introduces heatmap-weekhour.plot to render the CSV as a GitHub-style green heatmap.
• Wires the new SVG into the build (Makefile) and dashboard listing (all.txt).

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
heatmap-weekhour.plot	New gnuplot script to render the weekday/hour heatmap SVG.
heatmap-weekhour.pl	New Perl generator that buckets commits by UTC weekday/hour and computes percentile-based levels.
all.txt	Adds the new heatmap to the dashboard list; adjusts ordering around the release heatmap entry.
Makefile	Adds build targets for the new heatmap SVG/CSV; switches releasedays CSV dependency to the existing .pl generator.

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[bagder]

commits authored at this UTC week hour