Re: Where did Documentation/perf_counter disappear from linux-2.6-tip.git ?

  On 12/22/09 1:14 PM, Daniel wrote:

Dnia 22 grudnia 2009 11:04 	Tomas Carnecky[off-list ref]  napisał(a):

quoted

   $ git --version
git version 1.6.6.rc4

# Documentation/perf_counter is missing from the master branch, so first
let's find
# out what the last commit was that touched that subdirectory:
$ git log --all -1 -- Documentation/perf_counter
commit 436224a6d8bb3e29fe0cc18122f8d1f593da67b8
Author: Peter Zijlstra[off-list ref]
Date:   Tue Jun 2 21:02:36 2009 +0200
...
M       Documentation/perf_counter/builtin-report.c

# Great, let's look in which branch that commit is
$ git branch --contains 436224a6d8bb3e29fe0cc18122f8d1f593da67b8
* master

# So, let's look at the log of master and limit it to that subdirectory:
$ git log master -- Documentation/perf_counter
$

# Damn, that doesn't make any sense. In commit 43622 there were files in
that subdirectory, in master they have gone missing and yet log doesn't
show any commit touching that subdirectory?
# Let's try something different:
$ git log --diff-filter=D --name-status --all -- Documentation/perf_counter
...

# Ah, now we're getting somewhere, but still no sight of a commit which
removed for example Documentation/perf_counter/.gitignore
# I'm sure I'm probably just missing a tiny little switch for git-log. I
also tried other combination of name-status, diff-filter etc, but soon
after gave up.

tom
--

Try

$ git log --follow -- Documentation/perf_counter

Ah, that did the trick:
86470930, perf_counter tools: Move from Documentation/perf_counter/ to 
tools/perf/

However, that still doesn't answer my question why a simple git log 
doesn't show the commits. There are commits which touch that 
subdirectory, so why is a list of 'commits which touch that 
subdirectory' empty? Or am I misunderstanding what 'git log -- dir/' is 
supposed to do? I thought it did exactly that.

tom