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bug#21166: 24.4; vc-mode and git error on newly added file to new reposi


From: Dmitry Gutov
Subject: bug#21166: 24.4; vc-mode and git error on newly added file to new repository
Date: Fri, 31 Jul 2015 20:25:33 +0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:40.0) Gecko/20100101 Thunderbird/40.0

On 07/31/2015 05:43 PM, Ed Avis wrote:

Type some text in the buffer, save with C-x C-s, then ask for a diff
with C-x v =.  This fails with the following text at the bottom of the screen:

-UU-:----F1  a              All L1    address@hidden  (Fundamental) ---
fatal: bad revision 'HEAD'

Indeed, I can reproduce this.

But it's a relatively rare situation (no commits in the repo yet), and the git diff output will be less useful than usual, since it's a given that all your files are either added or simply unregistered.

To fix this, it seems we'll have to add an extra process call to determine whether HEAD is a valid reference (Git internals apparently do that). I'm not sure it's worth it.





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