Re: RFE: git-patch-id should handle patches without leading "diff"

Jonathan Nieder [off-list ref] writes:

quoted

So it seems most sensible to me if this is going to be supported that we
go a bit beyond the call of duty and fake up the start of it, namely:

    --- a/arch/x86/kernel/process.c
    +++ b/arch/x86/kernel/process.c

To be:

    diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
    --- a/arch/x86/kernel/process.c
    +++ b/arch/x86/kernel/process.c

Right.  We may want to handle diff.mnemonicPrefix as well.

I definitely think under the --stable option, we should pretend as
if the canonical a/ vs b/ prefixes were given with the "diff --git"
header, just like we try to reverse the effect of diff-orderfile,
etc.

I am unsure what the right behaviour under --unstable is, though.