Junio C Hamano <gitster@xxxxxxxxx> writes:
> - If the patch were prepared with a non-standard src/dst-prefix,
> unconditional substr($1, 2) would call blame on a wrong (and
> likely to be nonexistent) path without a useful diagnosis (the
> invocation of "git blame" will likely die with "no such path
> 'tailofpathname' in $id").
>
> One way to make it more robust may be to do something like this:
>
> if (/^--- /) {
> if (m{^--- (?:a/(.*)|/dev/null)$}) {
> $source = ($1 eq '/dev/null') ? undef : $1;
Typo/thinko. I did that (?:(foo)|bar) thing so that I do not have
to do the conditional. The above can just be
if (m{^--- (?:a/(.*)|/dev/null)$}) {
$source = $1;
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