Re: [PATCH] Show original and resulting blob object info in diff output.

Linus Torvalds <torvalds@osdl.org> writes:

> IOW, why not make it shorter ans prettier and just make it be
>
> 	index 7be50413538868412a87..83660822fcbb9edac523
>
> which is basically the first 20 hex digits of each SHA1.

Makes sense.

> If you want the "applies-to" etc,...

applies-to: is for the whole tree, and I think it can go if we
do this per-blob signature thing.

The first SHA1 after applies-to: is coming from diff-tree,
noting the commit object _after_ the change.  I could filter it
while running format-patch, because it is useless from patch
application point of view.

> .... In fact, I bet 20 bits would be plenty).

So the updated proposal would be:

    diff --git a/apply.c b/apply.c
    index 7be5041..8366082 100644
    --- a/apply.c
    +++ b/apply.c
    @@ -14,6 +14,7 @@
    ...
    diff --git a/foo.sh b/bar.sh
    old mode 100644
    new mode 100755
    index 7be5041..8366082
    similarity index 86%
    rename from foo.sh
    rename to bar.sh
    --- a/foo.sh
    +++ b/bar.sh
    @@ -14,6 +14,7 @@
    ...

where the "index" line shows abbreviated SHA1 for pre- and post-
image blob, with an optional mode bit string only if there is no
mode change; otherwise we would have old/new mode line anyway.


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