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It's annoying not to be able to put comments and empty lines in the skipList, when e.g. keeping a big central list of commits to skip in /etc/gitconfig, which was my motivation for 1362df0d ("fetch: implement fetch.fsck.*", 2018-07-27). Implement that, and document what version of Git this was changed in, since this on-disk format can be expected to be used by multiple versions of git. There is no notable performance impact from this change, using the test setup described a couple of commits back: Test HEAD~ HEAD ---------------------------------------------------------------------------------------- 1450.3: fsck with 0 skipped bad commits 7.69(7.27+0.42) 7.86(7.48+0.37) +2.2% 1450.5: fsck with 1 skipped bad commits 7.69(7.30+0.38) 7.83(7.47+0.36) +1.8% 1450.7: fsck with 10 skipped bad commits 7.76(7.38+0.38) 7.79(7.38+0.41) +0.4% 1450.9: fsck with 100 skipped bad commits 7.76(7.38+0.38) 7.74(7.36+0.38) -0.3% 1450.11: fsck with 1000 skipped bad commits 7.71(7.30+0.41) 7.72(7.34+0.38) +0.1% 1450.13: fsck with 10000 skipped bad commits 7.74(7.34+0.40) 7.72(7.34+0.38) -0.3% 1450.15: fsck with 100000 skipped bad commits 7.75(7.40+0.35) 7.70(7.29+0.40) -0.6% 1450.17: fsck with 1000000 skipped bad commits 7.12(6.86+0.26) 7.13(6.87+0.26) +0.1% Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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