Fix racy-git handling in git-write-tree.
authorLinus Torvalds <torvalds@linux-foundation.org>
Thu, 23 Aug 2007 17:18:54 +0000 (10:18 -0700)
committerJunio C Hamano <gitster@pobox.com>
Sat, 25 Aug 2007 01:53:02 +0000 (18:53 -0700)
commit9ec398d200cb07534a92045104862d681c7a7da2
treef3f315a51752a8795314b9af5e4b39e16a418fa2
parent1d25c8cf82eead72e11287d574ef72d3ebec0db1
Fix racy-git handling in git-write-tree.

After git-write-tree finishes computing the tree, it updates the
index so that later operations can take advantage of fully
populated cache tree.

However, anybody writing the index file has to mark the entries
that are racily clean.  For each entry whose cached lstat(3)
data in the index exactly matches what is obtained from the
filesystem, if the timestamp on the index file was the same or
older than the modification timestamp of the file, the blob
contents and the work tree file, after convert_to_git(), need to
be compared, and if they are different, its index entry needs to
be marked not to match the lstat(3) data from the filesystem.

In order for this to work, convert_to_git() needs to work
correctly, which in turn means you need to read the config file
to get the settings of core.crlf and friends.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
builtin-write-tree.c
t/t0023-crlf-am.sh [new file with mode: 0755]