Restore a file’s modification time in Git

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Restore the modificaton time of a list of files to the author date of the their last commit with

gitmtim(){ local f;for f;do touch -d @0`git log --pretty=%at -n1 -- "$f"` "$f"; done;}; gitmtim configure.ac

It will not change directories recursively, though.

If you want to change a whole working tree, e.g. after a fresh clone or checkout, you may try

git log --pretty=%at --name-status --reverse | perl -ane '($x,$f)=@F;next if !$x;$t=$x,next if !defined($f)||$s{$f};$s{$f}=utime($t,$t,$f),next if $x=~/[AM]/;'

NB: I grepped for utime in builtin/clone.c and got no matches.

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