Commit Graph

31305 Commits

Author SHA1 Message Date
Jeff King
6d3f2906a0 Merge branch 'mm/maint-doc-remote-tracking'
We long ago hyphenated "remote-tracking branch"; this
catches some new instances added since then.

* mm/maint-doc-remote-tracking:
  Documentation: remote tracking branch -> remote-tracking branch
2012-11-04 07:59:57 -05:00
Michael Haggerty
06379a6509 strbuf_split*(): document functions
Document strbuf_split_buf(), strbuf_split_str(), strbuf_split_max(),
strbuf_split(), and strbuf_list_free() in the header file and in
api-strbuf.txt.  (These functions were previously completely
undocumented.)

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Jeff King <peff@peff.net>
2012-11-04 06:46:55 -05:00
Michael Haggerty
17b73dc699 strbuf_split*(): rename "delim" parameter to "terminator"
The word "delimiter" suggests that the argument separates the
substrings, whereas in fact (1) the delimiter characters are included
in the output, and (2) if the input string ends with the delimiter,
then the output does not include a final empty string.  So rename the
"delim" arguments of the strbuf_split() family of functions to
"terminator", which is more suggestive of how it is used.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Jeff King <peff@peff.net>
2012-11-04 06:46:55 -05:00
Michael Haggerty
1173bb3311 strbuf_split_buf(): simplify iteration
While iterating, update str and slen to keep track of the part of the
string that hasn't been processed yet rather than computing things
relative to the start of the original string.  This eliminates one
local variable, reduces the scope of another, and reduces the amount
of arithmetic needed within the loop.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Jeff King <peff@peff.net>
2012-11-04 06:46:55 -05:00
Michael Haggerty
b8c2c1fa35 strbuf_split_buf(): use ALLOC_GROW()
Use ALLOC_GROW() rather than inline code to manage memory in
strbuf_split_buf().  Rename "pos" to "nr" because it better describes
the use of the variable and it better conforms to the "ALLOC_GROW"
idiom.

Also, instead of adding a sentinal NULL value after each entry is
added to the list, only add it once after all of the entries have been
added.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Jeff King <peff@peff.net>
2012-11-04 06:46:55 -05:00
Karsten Blees
7349afd20e update-index/diff-index: use core.preloadindex to improve performance
'update-index --refresh' and 'diff-index' (without --cached) don't honor
the core.preloadindex setting yet. Porcelain commands using these (such as
git [svn] rebase) suffer from this, especially on Windows.

Use read_cache_preload to improve performance.

Additionally, in builtin/diff.c, don't preload index status if we don't
access the working copy (--cached).

Results with msysgit on WebKit repo (2GB in 200k files):

                | update-index | diff-index | rebase
----------------+--------------+------------+---------
msysgit-v1.8.0  |       9.157s |    10.536s | 42.791s
+ preloadindex  |       9.157s |    10.536s | 28.725s
+ this patch    |       2.329s |     2.752s | 15.152s
+ fscache [1]   |       0.731s |     1.171s |  8.877s

[1] https://github.com/kblees/git/tree/kb/fscache-v3

Thanks-to: Albert Krawczyk <pro-logic@optusnet.com.au>
Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Jeff King <peff@peff.net>
2012-11-02 11:38:29 -04:00
Andreas Schwab
77effefefd commit: fixup misplacement of --no-post-rewrite description
In e858af6 (commit: document a couple of options) the description of the
--no-post-rewrite option was put inside the paragraph for the --amend
option.  Move it down after the paragraph.

Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Jeff King <peff@peff.net>
2012-11-02 09:22:02 -04:00
Matthieu Moy
ae45320c40 Document 'git commit --no-edit' explicitly
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Jeff King <peff@peff.net>
2012-11-02 07:49:28 -04:00
Jeff King
2e736fd5e9 remote-curl: retry failed requests for auth even with gzip
Commit b81401c taught the post_rpc function to retry the
http request after prompting for credentials. However, it
did not handle two cases:

  1. If we have a large request, we do not retry. That's OK,
     since we would have sent a probe (with retry) already.

  2. If we are gzipping the request, we do not retry. That
     was considered OK, because the intended use was for
     push (e.g., listing refs is OK, but actually pushing
     objects is not), and we never gzip on push.

This patch teaches post_rpc to retry even a gzipped request.
This has two advantages:

  1. It is possible to configure a "half-auth" state for
     fetching, where the set of refs and their sha1s are
     advertised, but one cannot actually fetch objects.

     This is not a recommended configuration, as it leaks
     some information about what is in the repository (e.g.,
     an attacker can try brute-forcing possible content in
     your repository and checking whether it matches your
     branch sha1). However, it can be slightly more
     convenient, since a no-op fetch will not require a
     password at all.

  2. It future-proofs us should we decide to ever gzip more
     requests.

Signed-off-by: Jeff King <peff@peff.net>
2012-10-31 07:45:13 -04:00
Jeff King
df126e108b remote-curl: hoist gzip buffer size to top of post_rpc
When we gzip the post data for a smart-http rpc request, we
compute the gzip body and its size inside the "use_gzip"
conditional. We keep track of the body after the conditional
ends, but not the size. Let's remember both, which will
enable us to retry failed gzip requests in a future patch.

Signed-off-by: Jeff King <peff@peff.net>
2012-10-31 07:45:08 -04:00
Joachim Schmitz
50e6af7daf fix 'make test' for HP NonStop
This fixes the vast majority of test failures on HP NonStop.
Some test don't work with /bin/diff, some fail with /bin/tar,
so let's put /usr/local/bin in PATH first.
Some tests fail with /bin/sh (link to /bin/ksh) so use bash instead

Signed-off-by: Joachim Schmitz <jojo@schmitz-digital.de>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-30 07:12:18 -04:00
Tom Jones
098bbdc31c Add -S, --gpg-sign option to manpage of "git commit"
git commit -S, --gpg-sign was mentioned in the program's help message,
but not in the manpage.

This adds an equivalent entry for the option in the manpage.

Signed-off-by: Tom Jones <tom@oxix.org>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 04:16:49 -04:00
Jeff King
9c50374497 Merge branch 'rs/branch-del-symref'
A symbolic ref refs/heads/SYM was not correctly removed with
"git branch -d SYM"; the command removed the ref pointed by
SYM instead.

* rs/branch-del-symref:
  branch: show targets of deleted symrefs, not sha1s
  branch: skip commit checks when deleting symref branches
  branch: delete symref branch, not its target
  branch: factor out delete_branch_config()
  branch: factor out check_branch_commit()
2012-10-29 04:15:04 -04:00
Jeff King
eeb2535f5a Merge branch 'nd/status-long'
Allow an earlier "--short" option on the command line to be
countermanded with the "--long" option for "git status" and "git
commit".

* nd/status-long:
  status: add --long output format option
2012-10-29 04:14:58 -04:00
Jeff King
deb2458132 Merge branch 'jk/sh-setup-in-filter-branch'
Refactoring to avoid code duplication in shell scripts.

* jk/sh-setup-in-filter-branch:
  filter-branch: use git-sh-setup's ident parsing functions
  git-sh-setup: refactor ident-parsing functions
2012-10-29 04:13:49 -04:00
Jeff King
e034d1bb92 Merge branch 'nd/grep-true-path'
"git grep -e pattern <tree>" asked the attribute system to read
"<tree>:.gitattributes" file in the working tree, which was
nonsense.

* nd/grep-true-path:
  grep: stop looking at random places for .gitattributes
2012-10-29 04:13:16 -04:00
Jeff King
58f3f9893d Merge branch 'jk/maint-http-init-not-in-result-handler'
Further clean-up to the http codepath that picks up results after
cURL library is done with one request slot.

* jk/maint-http-init-not-in-result-handler:
  http: do not set up curl auth after a 401
  remote-curl: do not call run_slot repeatedly
2012-10-29 04:13:09 -04:00
Jeff King
d2f4469b13 Merge branch 'jc/grep-pcre-loose-ends'
"git log -F -E --grep='<ere>'" failed to use the given <ere>
pattern as extended regular expression, and instead looked for the
string literally.  The early part of this series is a fix for it;
the latter part teaches log to respect the grep.* configuration.

* jc/grep-pcre-loose-ends:
  log: honor grep.* configuration
  log --grep: accept --basic-regexp and --perl-regexp
  log --grep: use the same helper to set -E/-F options as "git grep"
  revisions: initialize revs->grep_filter using grep_init()
  grep: move pattern-type bits support to top-level grep.[ch]
  grep: move the configuration parsing logic to grep.[ch]
  builtin/grep.c: make configuration callback more reusable
2012-10-29 04:12:15 -04:00
Jeff King
fdb4d27158 Merge branch 'jl/submodule-add-by-name'
If you remove a submodule, in order to keep the repository so that
"git checkout" to an older commit in the superproject history can
resurrect the submodule, the real repository will stay in $GIT_DIR
of the superproject.  A later "git submodule add $path" to add a
different submodule at the same path will fail.  Diagnose this case
a bit better, and if the user really wants to add an unrelated
submodule at the same path, give the "--name" option to give it a
place in $GIT_DIR of the superproject that does not conflict with
the original submodule.

* jl/submodule-add-by-name:
  submodule add: Fail when .git/modules/<name> already exists unless forced
  Teach "git submodule add" the --name option
2012-10-29 04:12:12 -04:00
Jeff King
d21240fafa Merge branch 'jl/submodule-rm'
"git rm submodule" cannot blindly remove a submodule directory as
its working tree may have local changes, and worse yet, it may even
have its repository embedded in it.  Teach it some special cases
where it is safe to remove a submodule, specifically, when there is
no local changes in the submodule working tree, and its repository
is not embedded in its working tree but is elsewhere and uses the
gitfile mechanism to point at it.

* jl/submodule-rm:
  submodule: teach rm to remove submodules unless they contain a git directory
2012-10-29 04:12:07 -04:00
Nguyễn Thái Ngọc Duy
745f7a8cac fetch-pack: move core code to libgit.a
fetch_pack() is used by transport.c, part of libgit.a while it stays
in builtin/fetch-pack.c. Move it to fetch-pack.c so that we won't get
undefined reference if a program that uses libgit.a happens to pull it
in.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 03:40:29 -04:00
Phil Hord
44fa0ef58c Add tests for submodule sync --recursive
Signed-off-by: Phil Hord <hordp@cisco.com>
Acked-By: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 03:29:43 -04:00
Phil Hord
82f49f294c Teach --recursive to submodule sync
The submodule sync command was somehow left out when
--recursive was added to the other submodule commands.

Teach sync to handle the --recursive switch by recursing
when we're in a submodule we are sync'ing.

Change the report during sync to show submodule-path
instead of submodule-name to be consistent with the other
submodule commands and to help recursed paths make sense.

Signed-off-by: Phil Hord <hordp@cisco.com>
Acked-By: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 03:29:43 -04:00
Jens Lehmann
e15bec0ec3 submodule status: remove unused orig_* variables
When renaming orig_args to orig_flags in 98dbe63d (submodule: only
preserve flags across recursive status/update invocations) the call site
of the recursive cmd_status was forgotten. At that place orig_args is
still passed into the recursion, which is always empty since then. This
did not break anything because the orig_flags logic is not needed at all
when a function from the submodule script is called with eval, as that
inherits all the variables set by the option parsing done in the first
level of the recursion.

Now that we know that orig_flags and orig_args aren't needed at all,
let's just remove them from cmd_status().

Thanks-to: Phil Hord <hordp@cisco.com>
Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 03:25:50 -04:00
Phil Hord
58ca9ad4d6 t7407: Fix recursive submodule test
A test in t7404-submodule-foreach purports to test that
the --cached flag is properly noticed by --recursive calls
to the foreach command as it descends into nested
submodules.  However, the test really does not perform this
test since the change it looks for is in a top-level
submodule handled by the first invocation of the command.
To properly test for the flag being passed to recursive
invocations, the change must be buried deeper in the
hierarchy.

Move the change one level deeper so it properly verifies
the recursive machinery of the 'git submodule status'
command.

Signed-off-by: Phil Hord <hordp@cisco.com>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 03:24:57 -04:00
Nguyễn Thái Ngọc Duy
f8eb3036d0 fetch-pack: remove global (static) configuration variable "args"
This helps removes the hack in fetch_pack() that copies my_args to args.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 03:08:30 -04:00
Nguyễn Thái Ngọc Duy
f5d942e1ed send-pack: move core code to libgit.a
send_pack() is used by transport.c, part of libgit.a while it stays in
builtin/send-pack.c. Move it to send-pack.c so that we won't get
undefined reference if a program that uses libgit.a happens to pull it
in.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 03:08:30 -04:00
Nguyễn Thái Ngọc Duy
4914c9629c Move setup_diff_pager to libgit.a
This is used by diff-no-index.c, part of libgit.a while it stays in
builtin/diff.c. Move it to diff.c so that we won't get undefined
reference if a program that uses libgit.a happens to pull it in.

While at it, move check_pager from git.c to pager.c. It makes more
sense there and pager.c is also part of libgit.a

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 03:08:30 -04:00
Nguyễn Thái Ngọc Duy
efc7df454e Move print_commit_list to libgit.a
This is used by bisect.c, part of libgit.a while it stays in
builtin/rev-list.c. Move it to commit.c so that we won't get undefined
reference if a program that uses libgit.a happens to pull it in.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 03:08:30 -04:00
Nguyễn Thái Ngọc Duy
c43cb38612 Move estimate_bisect_steps to libgit.a
This function is used by bisect.c, part of libgit.a while
estimate_bisect_steps stays in builtin/rev-list.c. Move it to bisect.a
so we won't have undefine reference if a standalone program that uses
libgit.a happens to pull it in.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 03:08:30 -04:00
Nguyễn Thái Ngọc Duy
db699a8a1f Move try_merge_command and checkout_fast_forward to libgit.a
These functions are called in sequencer.c, which is part of
libgit.a. This makes libgit.a potentially require builtin/merge.c for
external git commands.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 03:08:30 -04:00
Michael Haggerty
02e8ca0e50 parse_dirstat_params(): use string_list to split comma-separated string
Use string_list_split_in_place() to split the comma-separated
parameters string.  This simplifies the code and also fixes a bug: the
old code made calls like

    memcmp(p, "lines", p_len)

which needn't work if p_len is different than the length of the
constant string (and could illegally access memory if p_len is larger
than the length of the constant string).

When p_len was less than the length of the constant string, the old
code would have allowed some abbreviations to be accepted (e.g., "cha"
for "changes") but this seems to have been a bug rather than a
feature, because (1) it is not documented; (2) no attempt was made to
handle ambiguous abbreviations, like "c" for "changes" vs
"cumulative".

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 02:52:41 -04:00
Michael Haggerty
059b37934c string_list_longest_prefix(): remove function
This function was added in f103f95b11 in
the erroneous expectation that it would be used in the
reimplementation of longest_ancestor_length().  But it turned out to
be easier to use a function specialized for comparing path prefixes
(i.e., one that knows about slashes and root paths) than to prepare
the paths in such a way that a generic string prefix comparison
function can be used.  So delete string_list_longest_prefix() and its
documentation and test cases.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 02:34:58 -04:00
Michael Haggerty
1b77d83cab setup_git_directory_gently_1(): resolve symlinks in ceiling paths
longest_ancestor_length() relies on a textual comparison of directory
parts to find the part of path that overlaps with one of the paths in
prefix_list.  But this doesn't work if any of the prefixes involves a
symbolic link, because the directories will look different even though
they might logically refer to the same directory.  So canonicalize the
paths listed in GIT_CEILING_DIRECTORIES using real_path_if_valid()
before passing them to longest_ancestor_length().  (Also rename
normalize_ceiling_entry() to canonicalize_ceiling_entry() to reflect
the change.)

path is already in canonical form, so doesn't need to be canonicalized
again.

This fixes some problems with using GIT_CEILING_DIRECTORIES that
contains paths involving symlinks, including t4035 if run with --root
set to a path involving symlinks.

Please note that test t0060 is *not* changed analogously, because that
would make the test suite results dependent on the contents of the
local root directory.  However, real_path() is already tested
independently, and the "ancestor" tests cover the non-normalization
aspects of longest_ancestor_length(), so coverage remains sufficient.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 02:34:58 -04:00
Michael Haggerty
9e2326c7e1 longest_ancestor_length(): require prefix list entries to be normalized
Move the responsibility for normalizing prefixes from
longest_ancestor_length() to its callers. Use slightly different
normalizations at the two callers:

In setup_git_directory_gently_1(), use the old normalization, which
ignores paths that are not usable.  In the next commit we will change
this caller to also resolve symlinks in the paths from
GIT_CEILING_DIRECTORIES as part of the normalization.

In "test-path-utils longest_ancestor_length", use the old
normalization, but die() if any paths are unusable.  Also change t0060
to only pass normalized paths to the test program (no empty entries or
non-absolute paths, strip trailing slashes from the paths, and remove
tests that thereby become redundant).

The point of this change is to reduce the scope of the ancestor_length
tests in t0060 from testing normalization+longest_prefix to testing
only mostly longest_prefix.  This is necessary because when
setup_git_directory_gently_1() starts resolving symlinks as part of
its normalization, it will not be reasonable to do the same in the
test suite, because that would make the test results depend on the
contents of the root directory of the filesystem on which the test is
run.  HOWEVER: under Windows, bash mangles arguments that look like
absolute POSIX paths into DOS paths.  So we have to retain the level
of normalization done by normalize_path_copy() to convert the
bash-mangled DOS paths (which contain backslashes) into paths that use
forward slashes.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 02:34:58 -04:00
Michael Haggerty
31171d9e45 longest_ancestor_length(): take a string_list argument for prefixes
Change longest_ancestor_length() to take the prefixes argument as a
string_list rather than as a colon-separated string.  This will make
it easier for the caller to alter the entries before calling
longest_ancestor_length().

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 02:34:58 -04:00
Michael Haggerty
a5ccdbe416 longest_ancestor_length(): use string_list_split()
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 02:34:58 -04:00
Michael Haggerty
e3e46cdbd4 Introduce new function real_path_if_valid()
The function is like real_path(), except that it returns NULL on error
instead of dying.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 02:34:58 -04:00
Michael Haggerty
d6052abca3 real_path_internal(): add comment explaining use of cwd
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 02:34:57 -04:00
Michael Haggerty
038e55fec2 Introduce new static function real_path_internal()
It accepts a new parameter, die_on_error.  If die_on_error is false,
it simply cleans up after itself and returns NULL rather than dying.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 02:34:57 -04:00
Patrick Palka
3a599b832b Documentation: improve the example of overriding LESS via core.pager
You can override an option set in the LESS variable by simply prefixing
the command line option with `-+`. This is more robust than the previous
example if the default LESS options are to ever change.

Signed-off-by: Patrick Palka <patrick@parcs.ath.cx>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 02:27:13 -04:00
Ramsay Jones
5ba1a8a735 builtin/config.c: Fix a sparse warning
Sparse issues an "Using plain integer as NULL pointer" warning while
checking a 'struct strbuf_list' initializer expression. The initial
field of the struct has pointer type, but the initializer expression
is given as '{0}'. In order to suppress the warning, we simply replace
the initializer with '{NULL}'.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 01:48:06 -04:00
Krzysztof Mazur
d505865be5 doc: git-reset: make "<mode>" optional
The git-reset's "<mode>" is an optional argument, however it was
documented as required.

The "<mode>" is documented as one of: --soft, --mixed, --hard, --merge
or --keep, so "<mode>" should be used instead of "--<mode>".

Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 01:37:07 -04:00
Jeff King
ef90ab66e8 pickaxe: use textconv for -S counting
We currently just look at raw blob data when using "-S" to
pickaxe. This is mostly historical, as pickaxe predates the
textconv feature. If the user has bothered to define a
textconv filter, it is more likely that their search string will be
on the textconv output, as that is what they will see in the
diff (and we do not even provide a mechanism for them to
search for binary needles that contain NUL characters).

This patch teaches "-S" to use textconv, just as we
already do for "-G".

Signed-off-by: Jeff King <peff@peff.net>
2012-10-28 08:48:17 -04:00
Jeff King
8fa4b09fb1 pickaxe: hoist empty needle check
If we are given an empty pickaxe needle like "git log -S ''",
it is impossible for us to find anything (because no matter
what the content, the count will always be 0). We currently
check this at the lowest level of contains(). Let's hoist
the logic much earlier to has_changes(), so that it is
simpler to return our answer before loading any blob data.

Signed-off-by: Jeff King <peff@peff.net>
2012-10-28 08:48:09 -04:00
Jeff King
b1c2f57db3 diff_grep: use textconv buffers for add/deleted files
If you use "-G" to grep a diff, we will apply a configured
textconv filter to the data before generating the diff.
However, if the diff is an addition or deletion, we do not
bother running the diff at all, and just look for the token
in the added (or removed) content. This works because we
know that the diff must contain every line of content.

However, while we used the textconv-derived buffers in the
regular diff, we accidentally passed the original unmodified
buffers to regexec when checking the added or removed
content. This could lead to an incorrect answer.

Worse, in some cases we might have a textconv buffer but no
original buffer (e.g., if we pulled the textconv data from
cache, or if we reused a working tree file when generating
it). In that case, we could actually feed NULL to regexec
and segfault.

Reported-by: Peter Oberndorfer <kumbayo84@arcor.de>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-28 07:59:44 -04:00
Torsten Bögershausen
e342acc678 Fix t9200 on case insensitive file systems
t9200 defines $CVSROOT where cvs should init its repository
$CVSROOT is set to $PWD/cvsroot.
cvs init is supposed to create the repository inside $PWD/cvsroot/CVSROOT

"cvs init" (e.g. version  1.11.23) checks if the last element of the path is
"CVSROOT", and if a directory with e.g. $PWD/cvsroot/CVSROOT already exists.

For such a $CVSROOT cvs refuses to init a repository here:
"Cannot initialize repository under existing CVSROOT:

On a case insenstive file system cvsroot and CVSROOT are the same directories
and t9200 fails.

Solution: use $PWD/tmpcvsroot instead of cvsroot $PWD/cvsroot

Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-28 07:50:24 -04:00
Romain Francoise
3174bc5ccf mailmap: avoid out-of-bounds memory access
AddressSanitizer (http://clang.llvm.org/docs/AddressSanitizer.html)
complains of a one-byte buffer underflow in parse_name_and_email() while
running the test suite. And indeed, if one of the lines in the mailmap
begins with '<', we dereference the address just before the beginning of
the buffer when looking for whitespace to remove, before checking that
we aren't going too far.

So reverse the order of the tests to make sure that we don't read
outside the buffer.

Signed-off-by: Romain Francoise <romain@orebokech.com>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-28 07:50:18 -04:00
Stefan Zager
835460bba9 submodule add: fix handling of --reference=<repo> option
Doing a shift here is wrong because there is no extra
argument to consume when "--reference=<repo>" is used (note
the '=' instead of a space).

Signed-off-by: Stefan Zager <szager@google.com>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-26 10:32:31 -04:00
Philip Oakley
d84cef1817 Doc User-Manual: Patch cover letter, three dashes, and --notes
Show that git format-patch can have a cover letter, include patch
commentary below the three dashes, and notes can also be
included.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-26 10:31:38 -04:00