Software Design X-Rays

Analyze Subsystems

To dive into a subsystem we exclude all code contributions except the ones that touch the drivers/gpu module. This is straightforward, as git log already implements the functionality we need. We just need to specify an optional path, as shown in the following shell command:

adam$ git log --format=format: --name-only --after=2016-01-01 \
     -- drivers/gpu/ | sort | uniq -c | sort -r | head -5
 542 drivers/gpu/drm/i915/intel_display.c
 503 drivers/gpu/drm/i915/i915_drv.h
 343 drivers/gpu/drm/i915/i915_gem.c
 240 drivers/gpu/drm/i915/intel_drv.h
 235 drivers/gpu/drm/i915/intel_pm.c

The argument -- drivers/gpu/ instructs git log to show only commits ...