Russell Belfer [Tue, 7 May 2013 14:15:39 +0000 (07:15 -0700)]
Fix line numbering for patches with eofnl
When a patch contained an eofnl change (i.e. the last line either
gained or lost a newline), the oldno and newno line number values
for the lines in the last hunk of the patch were not useful. This
makes them behave in a more expected manner.
Russell Belfer [Tue, 7 May 2013 11:32:17 +0000 (04:32 -0700)]
Add GIT_DIFF_LINE_CONTEXT_EOFNL
This adds a new line origin constant for the special line that
is used when both files end without a newline.
In the course of writing the tests for this, I was having problems
with modifying a file but not having diff notice because it was
the same size and modified less than one second from the start of
the test, so I decided to start working on nanosecond timestamp
support. This commit doesn't contain the nanosecond support, but
it contains the reorganization of maybe_modified and the hooks so
that if the nanosecond data were being read by stat() (or rather
being copied by git_index_entry__init_from_stat), then the nsec
would be taken into account.
This new stuff could probably use some more tests, although there
is some amount of it here.
Switch to index_version as "git_pack_file is ready" flag
We use p->index_map.data to check whether the struct has been set up
and all the information about the index is stored there. This variable
gets set up halfway through the setup process, however, and a thread
can come along and use fields that haven't been written to yet.
Crucially, pack_entry_find_offset() needs to read the index version
(which is written after index_map) to know the offset and stride
length to pass to sha1_entry_pos(). If these values are wrong,
assertions in it will fail, as it will be reading bogus data.
Make index_version the last field to be written and switch from using
p->index_map.data to p->index_version as "git_pack_file is ready" flag
as we can use it to know if every field has been written.
Jeff King [Thu, 2 May 2013 15:07:20 +0000 (11:07 -0400)]
refdb_fs: do not require peeled packed refs to be tags
Older versions of git would only write peeled entries for
items under refs/tags/. Newer versions will write them for
all refs, and we should be prepared to handle that.
Russell Belfer [Thu, 2 May 2013 10:34:56 +0000 (03:34 -0700)]
Protect sha1_entry_pos call with mutex
There is an occasional assertion failure in sha1_entry_pos from
pack_entry_find_index when running threaded. Holding the mutex
around the code that grabs the index_map data and processes it
makes this assertion failure go away.
Russell Belfer [Wed, 1 May 2013 22:48:40 +0000 (15:48 -0700)]
Fix one error not reported in revparse
There are many paths through revparse that may return an error
code without reporting an error, I believe. This fixes one of
them. Because of the backtracking in revparse, it is pretty
complicated to fix the others.
Russell Belfer [Wed, 1 May 2013 22:23:40 +0000 (15:23 -0700)]
Factor out some code that needed to clear errors
A number of places were looking up option config values and then
not clearing the error codes if the values were not found. This
moves the repeated pattern into a shared routine and adds the
extra call to giterr_clear() when needed.
Russell Belfer [Wed, 1 May 2013 21:48:35 +0000 (14:48 -0700)]
Catch some odd odb backend corner case errors
There are some cases, particularly where no loaded ODB backends
support a particular operation, where we would return an error
code without having set an error. This catches those cases and
reports that no ODB backends support the operation in question.
Russell Belfer [Fri, 26 Apr 2013 22:35:47 +0000 (15:35 -0700)]
Update diff handling of untracked directories
When diff encounters an untracked directory, there was a shortcut
that it took which is not compatible with core git. This makes
the default behavior no longer take that shortcut and instead look
inside the untracked directory to see if there are any untracked
files within it. If there are not, then the directory is treated
as an ignore directory instead of an untracked directory. This
has implications for the git_status APIs.
Russell Belfer [Thu, 25 Apr 2013 21:57:13 +0000 (14:57 -0700)]
Reorganize diff code into functions
In preparation for more changes to the internal diff logic, it
seemed wise to split the very large git_diff__from_iterators into
separate functions that handle the four main cases (unmatched old
item, unmatched new item, unmatched new directory, and matched
old and new items). Hopefully this will keep the logic easier to
follow even as more cases have to be added to this code.
Russell Belfer [Mon, 29 Apr 2013 21:22:06 +0000 (14:22 -0700)]
Standardize cast versions of git_object accessors
This removes the GIT_INLINE versions of the simple git_object
accessors and standardizes them with a helper macro in src/object.h
to build the function bodies.
Russell Belfer [Mon, 29 Apr 2013 15:59:46 +0000 (08:59 -0700)]
Add git_oid_strcmp and use it for git_oid_streq
Add a new git_oid_strcmp that compares a string OID with a hex
oid for sort order, and then reimplement git_oid_streq using it.
This actually should speed up git_oid_streq because it only reads
as far into the string as it needs to, whereas previously it would
convert the whole string into an OID and then use git_oid_cmp.
Russell Belfer [Mon, 29 Apr 2013 15:51:24 +0000 (08:51 -0700)]
Fix fragile git_oid_ncmp
git_oid_ncmp was making some assumptions about the length of
the data - this shifts the check to the top of the loop so it
will work more robustly, limits the max, and adds some tests
to verify the functionality.
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