diff/patch: refactor #45

Job	Run time
windows (windows-latest, x64)	7m 13s
musllinux (ubuntu-latest, x86)	5m 52s
rust	1m 56s
musllinux (ubuntu-latest, armv7)	5m 12s
macos (macos-14, aarch64)	2m 38s
windows (windows-latest, x86)	6m 48s
sdist	18s
musllinux (ubuntu-latest, x86_64)	5m 25s
musllinux (ubuntu-latest, aarch64)	5m 43s
linux (ubuntu-latest, x86)	8m 11s
linux (ubuntu-latest, ppc64le)	7m 2s
linux (ubuntu-latest, armv7)	6m 9s
linux (ubuntu-latest, aarch64)	6m 5s
linux (ubuntu-latest, x86_64)	5m 41s
linux (ubuntu-latest, s390x)	5m 45s
Release	0s
	1h 19m 58s

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