Commit Graph

993 Commits

Author SHA1 Message Date
Clemens Buchacher
5879f5684c remove prefix argument from pathspec_prefix
Passing a prefix to a function that is supposed to find the prefix is
strange. And it's really only used if the pathspec is NULL. Make the
callers handle this case instead.

As we are always returning a fresh copy of a string (or NULL), change the
type of the returned value to non-const "char *".

Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-06 12:50:10 -07:00
Junio C Hamano
2730f55527 Merge branch 'nd/maint-clone-gitdir'
* nd/maint-clone-gitdir:
  clone: allow to clone from .git file
  read_gitfile_gently(): rename misnamed function to read_gitfile()
2011-08-28 21:20:28 -07:00
Junio C Hamano
6133e4da54 Merge branch 'cb/maint-ls-files-error-report'
* cb/maint-ls-files-error-report:
  ls-files: fix pathspec display on error
2011-08-23 15:34:31 -07:00
Junio C Hamano
13d6ec9133 read_gitfile_gently(): rename misnamed function to read_gitfile()
The function was not gentle at all to the callers and died without giving
them a chance to deal with possible errors. Rename it to read_gitfile(),
and update all the callers.

As no existing caller needs a true "gently" variant, we do not bother
adding one at this point.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-22 14:04:56 -07:00
Junio C Hamano
6ed547b53b Merge branch 'js/ref-namespaces'
* js/ref-namespaces:
  ref namespaces: tests
  ref namespaces: documentation
  ref namespaces: Support remote repositories via upload-pack and receive-pack
  ref namespaces: infrastructure
  Fix prefix handling in ref iteration functions
2011-08-17 17:35:38 -07:00
Fredrik Gustafsson
abc06822af rev-parse: add option --resolve-git-dir <path>
Check if <path> is a valid git-dir or a valid git-file that points
to a valid git-dir.

We want tests to be independent from the fact that a git-dir may
be a git-file. Thus we changed tests to use this feature.

Signed-off-by: Fredrik Gustafsson <iveqy@iveqy.com>
Mentored-by: Jens Lehmann <Jens.Lehmann@web.de>
Mentored-by: Heiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-16 11:04:31 -07:00
Clemens Buchacher
0f64bfa956 ls-files: fix pathspec display on error
The following sequence of commands reveals an issue with error
reporting of relative paths:

 $ mkdir sub
 $ cd sub
 $ git ls-files --error-unmatch ../bbbbb
 error: pathspec 'b' did not match any file(s) known to git.
 $ git commit --error-unmatch ../bbbbb
 error: pathspec 'b' did not match any file(s) known to git.

This bug is visible only if the normalized path (i.e., the relative
path from the repository root) is longer than the prefix.
Otherwise, the code skips over the normalized path and reads from
an unused memory location which still contains a leftover of the
original command line argument.

So instead, use the existing facilities to deal with relative paths
correctly.

Also fix inconsistency between "checkout" and "commit", e.g.

    $ cd Documentation
    $ git checkout nosuch.txt
    error: pathspec 'Documentation/nosuch.txt' did not match...
    $ git commit nosuch.txt
    error: pathspec 'nosuch.txt' did not match...

by propagating the prefix down the codepath that reports the error.

Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-11 13:04:16 -07:00
Junio C Hamano
0af53e188a Merge branch 'cb/partial-commit-relative-pathspec'
* cb/partial-commit-relative-pathspec:
  commit: allow partial commits with relative paths
2011-08-11 11:04:28 -07:00
Junio C Hamano
96790ca029 Merge branch 'jc/pack-order-tweak'
* jc/pack-order-tweak:
  pack-objects: optimize "recency order"
  core: log offset pack data accesses happened
2011-08-05 14:54:57 -07:00
Ramkumar Ramachandra
5ec3118293 config: Introduce functions to write non-standard file
Introduce two new functions corresponding to "git_config_set" and
"git_config_set_multivar" to write a non-standard configuration file.
Expose these new functions in cache.h for other git programs to use.

Helped-by: Jeff King <peff@peff.net>
Helped-by: Jonathan Nieder <jrnieder@gmail.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-04 15:40:41 -07:00
Clemens Buchacher
8894d53580 commit: allow partial commits with relative paths
In order to do partial commits, git-commit overlays a tree on the
cache and checks pathspecs against the result. Currently, the
overlaying is done using "prefix" which prevents relative pathspecs
with ".." and absolute pathspec from matching when they refer to
files not under "prefix" and absent from the index, but still in
the tree (i.e.  files staged for removal).

The point of providing a prefix at all is performance optimization.
If we say there is no common prefix for the files of interest, then
we have to read the entire tree into the index.

But even if we cannot use the working directory as a prefix, we can
still figure out if there is a common prefix for all given paths,
and use that instead. The pathspec_prefix() routine from ls-files.c
does exactly that.

Any use of global variables is removed from pathspec_prefix() so
that it can be called from commit.c.

Reported-by: Reuben Thomas <rrt@sc3d.org>
Analyzed-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-02 14:20:35 -07:00
Junio C Hamano
d907bf8ef3 Merge branch 'jc/index-pack'
* jc/index-pack:
  verify-pack: use index-pack --verify
  index-pack: show histogram when emulating "verify-pack -v"
  index-pack: start learning to emulate "verify-pack -v"
  index-pack: a miniscule refactor
  index-pack --verify: read anomalous offsets from v2 idx file
  write_idx_file: need_large_offset() helper function
  index-pack: --verify
  write_idx_file: introduce a struct to hold idx customization options
  index-pack: group the delta-base array entries also by type

Conflicts:
	builtin/verify-pack.c
	cache.h
	sha1_file.c
2011-07-19 09:54:51 -07:00
Junio C Hamano
ff94409da9 Merge branch 'jk/clone-cmdline-config'
* jk/clone-cmdline-config:
  clone: accept config options on the command line
  config: make git_config_parse_parameter a public function
  remote: use new OPT_STRING_LIST
  parse-options: add OPT_STRING_LIST helper
2011-07-19 09:45:24 -07:00
Junio C Hamano
eb4f4076aa Merge branch 'jc/zlib-wrap'
* jc/zlib-wrap:
  zlib: allow feeding more than 4GB in one go
  zlib: zlib can only process 4GB at a time
  zlib: wrap deflateBound() too
  zlib: wrap deflate side of the API
  zlib: wrap inflateInit2 used to accept only for gzip format
  zlib: wrap remaining calls to direct inflate/inflateEnd
  zlib wrapper: refactor error message formatter

Conflicts:
	sha1_file.c
2011-07-19 09:33:04 -07:00
Junio C Hamano
5f44324d88 core: log offset pack data accesses happened
In a workload other than "git log" (without pathspec nor any option that
causes us to inspect trees and blobs), the recency pack order is said to
cause the access jump around quite a bit. Add a hook to allow us observe
how bad it is.

"git config core.logpackaccess /var/tmp/pal.txt" will give you the log
in the specified file.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-06 19:09:29 -07:00
Josh Triplett
a1bea2c1fc ref namespaces: infrastructure
Add support for dividing the refs of a single repository into multiple
namespaces, each of which can have its own branches, tags, and HEAD.
Git can expose each namespace as an independent repository to pull from
and push to, while sharing the object store, and exposing all the refs
to operations such as git-gc.

Storing multiple repositories as namespaces of a single repository
avoids storing duplicate copies of the same objects, such as when
storing multiple branches of the same source.  The alternates mechanism
provides similar support for avoiding duplicates, but alternates do not
prevent duplication between new objects added to the repositories
without ongoing maintenance, while namespaces do.

To specify a namespace, set the GIT_NAMESPACE environment variable to
the namespace.  For each ref namespace, git stores the corresponding
refs in a directory under refs/namespaces/.  For example,
GIT_NAMESPACE=foo will store refs under refs/namespaces/foo/.  You can
also specify namespaces via the --namespace option to git.

Note that namespaces which include a / will expand to a hierarchy of
namespaces; for example, GIT_NAMESPACE=foo/bar will store refs under
refs/namespaces/foo/refs/namespaces/bar/.  This makes paths in
GIT_NAMESPACE behave hierarchically, so that cloning with
GIT_NAMESPACE=foo/bar produces the same result as cloning with
GIT_NAMESPACE=foo and cloning from that repo with GIT_NAMESPACE=bar.  It
also avoids ambiguity with strange namespace paths such as
foo/refs/heads/, which could otherwise generate directory/file conflicts
within the refs directory.

Add the infrastructure for ref namespaces: handle the GIT_NAMESPACE
environment variable and --namespace option, and support iterating over
refs in a namespace.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-06 11:19:24 -07:00
Junio C Hamano
9901923cf0 Merge branch 'jc/streaming-filter' into next
* jc/streaming-filter:
  t0021: test application of both crlf and ident
  t0021-conversion.sh: fix NoTerminatingSymbolAtEOF test
  streaming: filter cascading
  streaming filter: ident filter
  Add LF-to-CRLF streaming conversion
  stream filter: add "no more input" to the filters
  Add streaming filter API
  convert.h: move declarations for conversion from cache.h
2011-06-29 17:09:28 -07:00
Junio C Hamano
55ac692661 Merge branch 'jc/streaming' into next
* jc/streaming:
  sha1_file: use the correct type (ssize_t, not size_t) for read-style function
  streaming: read loose objects incrementally
  sha1_file.c: expose helpers to read loose objects
  streaming: read non-delta incrementally from a pack
  streaming_write_entry(): support files with holes
  convert: CRLF_INPUT is a no-op in the output codepath
  streaming_write_entry(): use streaming API in write_entry()
  streaming: a new API to read from the object store
  write_entry(): separate two helper functions out
  unpack_object_header(): make it public
  sha1_object_info_extended(): hint about objects in delta-base cache
  sha1_object_info_extended(): expose a bit more info
  packed_object_info_detail(): do not return a string
2011-06-29 17:09:27 -07:00
Junio C Hamano
033c2dc436 Merge branch 'ef/maint-win-verify-path'
* ef/maint-win-verify-path:
  verify_dotfile(): do not assume '/' is the path seperator
  verify_path(): simplify check at the directory boundary
  verify_path: consider dos drive prefix
  real_path: do not assume '/' is the path seperator
  A Windows path starting with a backslash is absolute
2011-06-29 17:09:17 -07:00
Jeff King
2496844bb2 config: make git_config_parse_parameter a public function
We use this internally to parse "git -c core.foo=bar", but
the general format of "key=value" is useful for other
places.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-22 11:25:21 -07:00
Junio C Hamano
ef49a7a012 zlib: zlib can only process 4GB at a time
The size of objects we read from the repository and data we try to put
into the repository are represented in "unsigned long", so that on larger
architectures we can handle objects that weigh more than 4GB.

But the interface defined in zlib.h to communicate with inflate/deflate
limits avail_in (how many bytes of input are we calling zlib with) and
avail_out (how many bytes of output from zlib are we ready to accept)
fields effectively to 4GB by defining their type to be uInt.

In many places in our code, we allocate a large buffer (e.g. mmap'ing a
large loose object file) and tell zlib its size by assigning the size to
avail_in field of the stream, but that will truncate the high octets of
the real size. The worst part of this story is that we often pass around
z_stream (the state object used by zlib) to keep track of the number of
used bytes in input/output buffer by inspecting these two fields, which
practically limits our callchain to the same 4GB limit.

Wrap z_stream in another structure git_zstream that can express avail_in
and avail_out in unsigned long. For now, just die() when the caller gives
a size that cannot be given to a single zlib call. In later patches in the
series, we would make git_inflate() and git_deflate() internally loop to
give callers an illusion that our "improved" version of zlib interface can
operate on a buffer larger than 4GB in one go.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-10 11:52:15 -07:00
Junio C Hamano
225a6f1068 zlib: wrap deflateBound() too
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-10 11:18:17 -07:00
Junio C Hamano
55bb5c9147 zlib: wrap deflate side of the API
Wrap deflateInit, deflate, and deflateEnd for everybody, and the sole use
of deflateInit2 in remote-curl.c to tell the library to use gzip header
and trailer in git_deflate_init_gzip().

There is only one caller that cares about the status from deflateEnd().
Introduce git_deflate_end_gently() to let that sole caller retrieve the
status and act on it (i.e. die) for now, but we would probably want to
make inflate_end/deflate_end die when they ran out of memory and get
rid of the _gently() kind.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-10 11:10:29 -07:00
Junio C Hamano
5e86c1fb86 zlib: wrap inflateInit2 used to accept only for gzip format
http-backend.c uses inflateInit2() to tell the library that it wants to
accept only gzip format. Wrap it in a helper function so that readers do
not have to wonder what the magic numbers 15 and 16 are for.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-10 10:51:02 -07:00
Junio C Hamano
3de89c9d42 verify-pack: use index-pack --verify
This finally gets rid of the inefficient verify-pack implementation that
walks objects in the packfile in their object name order and replaces it
with a call to index-pack --verify. As a side effect, it also removes
packed_object_info_detail() API which is rather expensive.

As this changes the way errors are reported (verify-pack used to rely on
the usual runtime error detection routine unpack_entry() to diagnose the
CRC errors in an entry in the *.idx file; index-pack --verify checks the
whole *.idx file in one go), update a test that expected the string "CRC"
to appear in the error message.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-05 22:45:38 -07:00
Junio C Hamano
1c6e3514d0 Merge branch 'jk/maint-config-alias-fix' into maint
* jk/maint-config-alias-fix:
  handle_options(): do not miscount how many arguments were used
  config: always parse GIT_CONFIG_PARAMETERS during git_config
  git_config: don't peek at global config_parameters
  config: make environment parsing routines static
2011-06-01 14:05:22 -07:00
Junio C Hamano
1f9a980636 Merge branch 'jk/maint-config-alias-fix'
* jk/maint-config-alias-fix:
  handle_options(): do not miscount how many arguments were used
  config: always parse GIT_CONFIG_PARAMETERS during git_config
  git_config: don't peek at global config_parameters
  config: make environment parsing routines static

Conflicts:
	config.c
2011-05-30 20:19:14 -07:00
Theo Niessink
88135203af A Windows path starting with a backslash is absolute
This fixes prefix_path() not recognizing e.g. \foo\bar as an absolute path
on Windows.

Signed-off-by: Theo Niessink <theo@taletn.com>
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-27 10:59:13 -07:00
Junio C Hamano
d1bf0e0831 convert.h: move declarations for conversion from cache.h
Before adding the streaming filter API to the conversion layer,
move the existing declarations related to the conversion to its
own header file.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-26 16:47:15 -07:00
Junio C Hamano
bac9c06ba0 Merge branch 'jk/git-connection-deadlock-fix' into maint-1.7.4
* jk/git-connection-deadlock-fix:
  test core.gitproxy configuration
  send-pack: avoid deadlock on git:// push with failed pack-objects
  connect: let callers know if connection is a socket
  connect: treat generic proxy processes like ssh processes

Conflicts:
	connect.c
2011-05-26 10:28:10 -07:00
Junio C Hamano
5590fe762f Merge branch 'jk/git-connection-deadlock-fix' into maint
* jk/git-connection-deadlock-fix:
  test core.gitproxy configuration
  send-pack: avoid deadlock on git:// push with failed pack-objects
  connect: let callers know if connection is a socket
  connect: treat generic proxy processes like ssh processes

Conflicts:
	connect.c
2011-05-26 09:33:25 -07:00
Junio C Hamano
5cfe4256d9 Merge branch 'jc/bigfile'
* jc/bigfile:
  Bigfile: teach "git add" to send a large file straight to a pack
  index_fd(): split into two helper functions
  index_fd(): turn write_object and format_check arguments into one flag
2011-05-25 16:23:26 -07:00
Jeff King
3ddf0968c2 config: make environment parsing routines static
Nobody outside of git_config_from_parameters should need
to use the GIT_CONFIG_PARAMETERS parsing functions, so let's
make them private.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-24 16:20:48 -07:00
Junio C Hamano
6bb696c304 Merge branch 'mg/config-symbolic-constants'
* mg/config-symbolic-constants:
  config: Give error message when not changing a multivar
  config: define and document exit codes
2011-05-23 09:59:05 -07:00
Junio C Hamano
be5ab43566 Merge branch 'jc/magic-pathspec'
* jc/magic-pathspec:
  setup.c: Fix some "symbol not declared" sparse warnings
  t3703: Skip tests using directory name ":" on Windows
  revision.c: leave a note for "a lone :" enhancement
  t3703, t4208: add test cases for magic pathspec
  rev/path disambiguation: further restrict "misspelled index entry" diag
  fix overslow :/no-such-string-ever-existed diagnostics
  fix overstrict :<path> diagnosis
  grep: use get_pathspec() correctly
  pathspec: drop "lone : means no pathspec" from get_pathspec()
  Revert "magic pathspec: add ":(icase)path" to match case insensitively"
  magic pathspec: add ":(icase)path" to match case insensitively
  magic pathspec: futureproof shorthand form
  magic pathspec: add tentative ":/path/from/top/level" pathspec support
2011-05-23 09:58:35 -07:00
Junio C Hamano
f0270efd46 sha1_file.c: expose helpers to read loose objects
Make map_sha1_file(), parse_sha1_header() and unpack_sha1_header()
available to the streaming read API by exporting them via cache.h header
file.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-20 23:16:53 -07:00
Junio C Hamano
dd8e912190 streaming_write_entry(): use streaming API in write_entry()
When the output to a path does not have to be converted, we can read from
the object database from the streaming API and write to the file in the
working tree, without having to hold everything in the memory.

The ident, auto- and safe- crlf conversions inherently require you to read
the whole thing before deciding what to do, so while it is technically
possible to support them by using a buffer of an unbound size or rewinding
and reading the stream twice, it is less practical than the traditional
"read the whole thing in core and convert" approach.

Adding streaming filters for the other conversions on top of this should
be doable by tweaking the can_bypass_conversion() function (it should be
renamed to can_filter_stream() when it happens). Then the streaming API
can be extended to wrap the git_istream streaming_write_entry() opens on
the underlying object in another git_istream that reads from it, filters
what is read, and let the streaming_write_entry() read the filtered
result. But that is outside the scope of this series.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-20 18:46:58 -07:00
Junio C Hamano
f8c8abc5b7 unpack_object_header(): make it public
This function is used to read and skip over the per-object header
in a packfile.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-20 18:38:54 -07:00
Junio C Hamano
5266d369b2 sha1_object_info_extended(): hint about objects in delta-base cache
An object found in the delta-base cache is not guaranteed to
stay there, but we know it came from a pack and it is likely
to give us a quick access if we read_sha1_file() it right now,
which is a piece of useful information.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-20 18:38:50 -07:00
Junio C Hamano
61d7503da1 Merge branch 'jc/replacing'
* jc/replacing:
  read_sha1_file(): allow selective bypassing of replacement mechanism
  inline lookup_replace_object() calls
  read_sha1_file(): get rid of read_sha1_file_repl() madness
  t6050: make sure we test not just commit replacement
  Declare lookup_replace_object() in cache.h, not in commit.h

Conflicts:
	environment.c
2011-05-19 20:37:21 -07:00
Junio C Hamano
a66fae3827 Merge branch 'jk/git-connection-deadlock-fix'
* jk/git-connection-deadlock-fix:
  test core.gitproxy configuration
  send-pack: avoid deadlock on git:// push with failed pack-objects
  connect: let callers know if connection is a socket
  connect: treat generic proxy processes like ssh processes

Conflicts:
	connect.c
2011-05-19 20:37:20 -07:00
Junio C Hamano
9a49059022 sha1_object_info_extended(): expose a bit more info
The original interface for sha1_object_info() takes an object name and
gives back a type and its size (the latter is given only when it was
asked).  The new interface wraps its implementation and exposes a bit
more pieces of information that the interface used to discard, namely:

 - where the object is stored (loose? cached? packed?)
 - if packed, where in which packfile?

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---

 * In the earlier round, this used u.pack.delta to record the length of
   the delta chain, but the caller is not necessarily interested in the
   length of the delta chain per-se, but may only want to know if it is a
   delta against another object or is stored as a deflated data. Calling
   packed_object_info_detail() involves walking the reverse index chain to
   compute the store size of the object and is unnecessarily expensive.

   We could resurrect the code if a new caller wants to know, but I doubt
   it.
2011-05-19 14:22:47 -07:00
Michael J Gruber
7a39741999 config: define and document exit codes
The return codes of git_config_set() and friends are magic numbers right
in the source. #define them in cache.h where the functions are declared,
and use the constants in the source.

Also, mention the resulting exit codes of "git config" in its man page
(and complete the list).

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-17 21:01:17 -07:00
Junio C Hamano
b9a62cbeb9 packed_object_info_detail(): do not return a string
Instead return an integer that can be given to typename() if
the caller wants a string, just like everybody else does.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-16 22:13:34 -07:00
Jeff King
7ffe853b10 connect: let callers know if connection is a socket
They might care because they want to do a half-duplex close.
With pipes, that means simply closing the output descriptor;
with a socket, you must actually call shutdown.

Instead of exposing the magic no_fork child_process struct,
let's encapsulate the test in a function.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-16 16:20:01 -07:00
Junio C Hamano
02071b27f1 Merge branches 'jc/convert', 'jc/bigfile' and 'jc/replacing' into jc/streaming
* jc/convert:
  convert: make it harder to screw up adding a conversion attribute
  convert: make it safer to add conversion attributes
  convert: give saner names to crlf/eol variables, types and functions
  convert: rename the "eol" global variable to "core_eol"

* jc/bigfile:
  Bigfile: teach "git add" to send a large file straight to a pack
  index_fd(): split into two helper functions
  index_fd(): turn write_object and format_check arguments into one flag

* jc/replacing:
  read_sha1_file(): allow selective bypassing of replacement mechanism
  inline lookup_replace_object() calls
  read_sha1_file(): get rid of read_sha1_file_repl() madness
  t6050: make sure we test not just commit replacement
  Declare lookup_replace_object() in cache.h, not in commit.h
2011-05-15 16:30:13 -07:00
Junio C Hamano
5bf29b9500 read_sha1_file(): allow selective bypassing of replacement mechanism
The way "object replacement" mechanism was tucked to the read_sha1_file()
interface was suboptimal in a couple of ways:

 - Callers that want it to die with useful diagnosis upon seeing a corrupt
   object does not have a way to say that they do not want any object
   replacement.

 - Callers who do not want it to die but want to handle the errors
   themselves are told to arrange to call read_object(), but the function
   does not use the replacement mechanism, and also it is a file scope
   static function that not many callers can call to begin with.

This adds a read_sha1_file_extended() that takes a set of flags; the
callers of read_sha1_file() passes a flag READ_SHA1_FILE_REPLACE to ask
for object replacement mechanism to kick in.

Later, we could add another flag bit to tell the function to return an
error instead of dying and then remove the misguided "call read_object()
yourself".

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-15 15:23:34 -07:00
Junio C Hamano
e1111cef23 inline lookup_replace_object() calls
In a repository without object replacement, lookup_replace_object() should
be a no-op. Check the flag "read_replace_refs" on the side of the caller,
and bypess a function call when we know we are not dealing with replacement.

Also, even when we are set up to replace objects, if we do not find any
replacement defined, flip that flag off to avoid function call overhead
for all the later object accesses.

As this change the semantics of the flag from "do we need read the
replacement definition?" to "do we need to check with the lookup table?"
the flag needs to be renamed later to something saner, e.g. "use_replace",
when the codebase is calmer, but not now.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-15 15:23:33 -07:00
Junio C Hamano
4bbf5a2615 read_sha1_file(): get rid of read_sha1_file_repl() madness
Most callers want to silently get a replacement object, and they do not
care what the real name of the replacement object is.  Worse yet, no sane
interface to return the underlying object without replacement is provided.

Remove the function and make only the few callers that want the name of
the replacement object find it themselves.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-15 15:23:33 -07:00
Junio C Hamano
fea33a1ef3 Declare lookup_replace_object() in cache.h, not in commit.h
The declaration is misplaced as the replace API is supposed to affect
not just commits, but all types of objects.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-15 15:23:31 -07:00
Junio C Hamano
2e83b66c32 fix overslow :/no-such-string-ever-existed diagnostics
"git cmd :/no-such-string-ever-existed" runs an extra round of get_sha1()
since 009fee4 (Detailed diagnosis when parsing an object name fails.,
2009-12-07).  Once without error diagnosis to see there is no commit with
such a string in the log message (hence "it cannot be a ref"), and after
seeing that :/no-such-string-ever-existed is not a filename (hence "it
cannot be a path, either"), another time to give "better diagnosis".

The thing is, the second time it runs, we already know that traversing the
history all the way down to the root will _not_ find any matching commit.

Rename misguided "gently" parameter, which is turned off _only_ when the
"detailed diagnosis" codepath knows that it cannot be a ref and making the
call only for the caller to die with a message.  Flip its meaning (and
adjust the callers) and call it "only_to_die", which is not a great name,
but it describes far more clearly what the codepaths that switches their
behaviour based on this variable do.

On my box, the command spends ~1.8 seconds without the patch to make the
report; with the patch it spends ~1.12 seconds.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-10 12:37:54 -07:00
Junio C Hamano
ec70f52f6f convert: rename the "eol" global variable to "core_eol"
Yes, it is clear that "eol" wants to mean some sort of end-of-line thing,
but as the name of a global variable, it is way too short to describe what
kind of end-of-line thing it wants to represent. Besides, there are many
codepaths that want to use their own local "char *eol" variable to point
at the end of the current line they are processing.

This global variable holds what we read from core.eol configuration
variable. Name it as such.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-09 14:58:52 -07:00
Junio C Hamano
c4ce46fc7a index_fd(): turn write_object and format_check arguments into one flag
The "format_check" parameter tucked after the existing parameters is too
ugly an afterthought to live in any reasonable API.

Combine it with the other boolean parameter "write_object" into a single
"flags" parameter.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-09 11:58:19 -07:00
Junio C Hamano
efa67bfd16 Merge branch 'im/hashcmp-optim'
* im/hashcmp-optim:
  hashcmp(): inline memcmp() by hand to optimize
2011-05-06 11:00:36 -07:00
Junio C Hamano
1273738f05 Merge branch 'nd/struct-pathspec'
* nd/struct-pathspec:
  pathspec: rename per-item field has_wildcard to use_wildcard
  Improve tree_entry_interesting() handling code
  Convert read_tree{,_recursive} to support struct pathspec
  Reimplement read_tree_recursive() using tree_entry_interesting()
2011-05-06 10:50:06 -07:00
Junio C Hamano
f28d2e33c6 Merge branch 'jc/pack-objects-bigfile' into maint
* jc/pack-objects-bigfile:
  Teach core.bigfilethreashold to pack-objects
2011-05-04 14:57:38 -07:00
Ingo Molnar
1a812f3a70 hashcmp(): inline memcmp() by hand to optimize
This is reported to speed "git gc" by 18%.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-28 13:18:30 -07:00
Junio C Hamano
9cedd16c62 Merge branch 'jc/pack-objects-bigfile'
* jc/pack-objects-bigfile:
  Teach core.bigfilethreashold to pack-objects
2011-04-27 11:36:41 -07:00
Junio C Hamano
15366280c2 Teach core.bigfilethreashold to pack-objects
The pack-objects command should take notice of the object file and
refrain from attempting to delta large ones, to be consistent with
the fast-import command.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-05 20:25:49 -07:00
Junio C Hamano
33e0f62ba9 pathspec: rename per-item field has_wildcard to use_wildcard
As the point of the last change is to allow use of strings as
literals no matter what characters are in them, "has_wildcard"
does not match what we use this field for anymore.

It is used to decide if the wildcard matching should be used, so
rename it to match the usage better.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-05 09:30:36 -07:00
Junio C Hamano
44ec754dc7 Merge branch 'jc/index-update-if-able' into maint
* jc/index-update-if-able:
  update $GIT_INDEX_FILE when there are racily clean entries
  diff/status: refactor opportunistic index update
2011-04-03 12:33:05 -07:00
Junio C Hamano
be57695d77 Merge branch 'lt/default-abbrev' into maint
* lt/default-abbrev:
  Rename core.abbrevlength back to core.abbrev
  Make the default abbrev length configurable
2011-04-03 12:32:51 -07:00
Junio C Hamano
625589b5be Merge branch 'lp/config-vername-check' into maint
* lp/config-vername-check:
  Disallow empty section and variable names
  Sanity-check config variable names
2011-04-03 12:29:45 -07:00
Junio C Hamano
c4b2ce6953 Merge branch 'nd/init-gitdir'
* nd/init-gitdir:
  init, clone: support --separate-git-dir for .git file
  git-init.txt: move description section up

Conflicts:
	builtin/clone.c
2011-04-01 17:57:37 -07:00
Junio C Hamano
149971badc Merge branch 'jc/index-update-if-able'
* jc/index-update-if-able:
  update $GIT_INDEX_FILE when there are racily clean entries
  diff/status: refactor opportunistic index update
2011-03-26 20:13:16 -07:00
Junio C Hamano
ad7bb2f68c Merge branch 'jc/maint-rerere-in-workdir'
* jc/maint-rerere-in-workdir:
  rerere: make sure it works even in a workdir attached to a young repository
2011-03-26 20:13:16 -07:00
Junio C Hamano
90a6464b4a rerere: make sure it works even in a workdir attached to a young repository
The git-new-workdir script in contrib/ makes a new work tree by sharing
many subdirectories of the .git directory with the original repository.
When rerere.enabled is set in the original repository, but the user has
not encountered any conflicts yet, the original repository may not yet
have .git/rr-cache directory.

When rerere wants to run in a new work tree created from such a young
original repository, it fails to mkdir(2) .git/rr-cache that is a symlink
to a yet-to-be-created directory.

There are three possible approaches to this:

 - A naive solution is not to create a symlink in the git-new-workdir
   script to a directory the original does not have (yet).  This is not a
   solution, as we tend to lazily create subdirectories of .git/, and
   having rerere.enabled configuration set is a strong indication that the
   user _wants_ to have this lazy creation to happen;

 - We could always create .git/rr-cache upon repository creation.  This is
   tempting but will not help people with existing repositories.

 - Detect this case by seeing that mkdir(2) failed with EEXIST, checking
   that the path is a symlink, and try running mkdir(2) on the link
   target.

This patch solves the issue by doing the third one.

Strictly speaking, this is incomplete.  It does not attempt to handle
relative symbolic link that points into the original repository, but this
is good enough to help people who use contrib/workdir/git-new-workdir
script.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-23 16:05:44 -07:00
Junio C Hamano
da2584243e Merge branch 'lt/default-abbrev'
* lt/default-abbrev:
  Rename core.abbrevlength back to core.abbrev
  Make the default abbrev length configurable
2011-03-23 14:55:40 -07:00
Junio C Hamano
50aaeca008 Merge branch 'jn/test-sanitize-git-env'
* jn/test-sanitize-git-env:
  tests: scrub environment of GIT_* variables
  config: drop support for GIT_CONFIG_NOGLOBAL
  gitattributes: drop support for GIT_ATTR_NOGLOBAL
  tests: suppress system gitattributes
  tests: stop worrying about obsolete environment variables
2011-03-22 21:38:12 -07:00
Junio C Hamano
ccdc4ec304 diff/status: refactor opportunistic index update
When we had to refresh the index internally before running diff or status,
we opportunistically updated the $GIT_INDEX_FILE so that later invocation
of git can use the lstat(2) we already did in this invocation.

Make them share a helper function to do so.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-21 12:43:10 -07:00
Junio C Hamano
0bd20f10ea Merge branch 'sp/maint-fd-limit' into maint
* sp/maint-fd-limit:
  sha1_file.c: Don't retain open fds on small packs
  mingw: add minimum getrlimit() compatibility stub
  Limit file descriptors used by packs
2011-03-20 22:11:46 -07:00
Junio C Hamano
1e239079f7 Merge branch 'ab/i18n-basic'
* ab/i18n-basic:
  i18n: "make distclean" should clean up after "make pot"
  i18n: Makefile: "pot" target to extract messages marked for translation
  i18n: add stub Q_() wrapper for ngettext
  i18n: do not poison translations unless GIT_GETTEXT_POISON envvar is set
  i18n: add GETTEXT_POISON to simulate unfriendly translator
  i18n: add no-op _() and N_() wrappers
  commit, status: use status_printf{,_ln,_more} helpers
  commit: refer to commit template as s->fp
  wt-status: add helpers for printing wt-status lines

Conflicts:
	builtin/commit.c
2011-03-19 23:24:42 -07:00
Junio C Hamano
0d7f242110 Merge branch 'jk/trace-sifter'
* jk/trace-sifter:
  trace: give repo_setup trace its own key
  add packet tracing debug code
  trace: add trace_strbuf
  trace: factor out "do we want to trace" logic
  trace: refactor to support multiple env variables
  trace: add trace_vprintf
2011-03-19 23:24:12 -07:00
Nguyễn Thái Ngọc Duy
b57fb80a7d init, clone: support --separate-git-dir for .git file
--separate-git-dir tells git to create git dir at the specified
location, instead of where it is supposed to be. A .git file that
points to that location will be put in place so that it appears normal
to repo discovery process.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-19 21:48:19 -07:00
Carlos Martín Nieto
e2a57aac8a Name make_*_path functions more accurately
Rename the make_*_path functions so it's clearer what they do, in
particlar make clear what the differnce between make_absolute_path and
make_nonrelative_path is by renaming them real_path and absolute_path
respectively. make_relative_path has an understandable name and is
renamed to relative_path to maintain the name convention.

The function calls have been replaced 1-to-1 in their usage.

Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-17 16:08:30 -07:00
Junio C Hamano
b2f6eab402 Merge branch 'maint'
* maint:
  Prepare draft release notes to 1.7.4.2
  gitweb: highlight: replace tabs with spaces
  make_absolute_path: return the input path if it points to our buffer
  valgrind: ignore SSE-based strlen invalid reads
  diff --submodule: split into bite-sized pieces
  cherry: split off function to print output lines
  branch: split off function that writes tracking info and commit subject
  standardize brace placement in struct definitions
  compat: make gcc bswap an inline function
  enums: omit trailing comma for portability

Conflicts:
	RelNotes
2011-03-16 16:59:30 -07:00
Junio C Hamano
61a6f1faec Merge branch 'jh/push-default-upstream-configname' into maint
* jh/push-default-upstream-configname:
  push.default: Rename 'tracking' to 'upstream'
2011-03-16 16:47:26 -07:00
Jonathan Nieder
c9b6782a08 enums: omit trailing comma for portability
Since v1.7.2-rc0~23^2~2 (Add per-repository eol normalization,
2010-05-19), building with gcc -std=gnu89 -pedantic produces warnings
like the following:

 convert.c:21:11: warning: comma at end of enumerator list [-pedantic]

gcc is right to complain --- these commas are not permitted in C89.
In the spirit of v1.7.2-rc0~32^2~16 (2010-05-14), remove them.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-16 12:31:32 -07:00
Junio C Hamano
276e017f2f Merge branch 'nd/struct-pathspec'
* nd/struct-pathspec:
  declare 1-bit bitfields to be unsigned
2011-03-16 00:17:05 -07:00
Jonathan Nieder
9ddf17268c declare 1-bit bitfields to be unsigned
As "gcc -pedantic" notices, a two's complement 1-bit signed integer
cannot represent the value '1'.

 dir.c: In function 'init_pathspec':
 dir.c:1291:4: warning: overflow in implicit constant conversion [-Woverflow]

In the spirit of v1.7.1-rc1~10 (2010-04-06), 'unsigned' is what was
intended, so let's make the flags unsigned.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-15 22:24:29 -07:00
Junio C Hamano
674ef90904 Merge branch 'sp/maint-fd-limit'
* sp/maint-fd-limit:
  sha1_file.c: Don't retain open fds on small packs
  mingw: add minimum getrlimit() compatibility stub
  Limit file descriptors used by packs
2011-03-15 14:22:23 -07:00
Jonathan Nieder
8f323c00dd config: drop support for GIT_CONFIG_NOGLOBAL
Now that test-lib sets $HOME to protect against pollution from user
settings, GIT_CONFIG_NOGLOBAL is not needed for use by the test
suite any more.  And as luck would have it, a quick code search
reveals no other users in the wild.

This patch does not affect GIT_CONFIG_NOSYSTEM, which is still
needed.

Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-15 12:23:30 -07:00
Linus Torvalds
dce9648916 Make the default abbrev length configurable
The default of 7 comes from fairly early in git development, when
seven hex digits was a lot (it covers about 250+ million hash
values). Back then I thought that 65k revisions was a lot (it was what
we were about to hit in BK), and each revision tends to be about 5-10
new objects or so, so a million objects was a big number.

These days, the kernel isn't even the largest git project, and even
the kernel has about 220k revisions (_much_ bigger than the BK tree
ever was) and we are approaching two million objects. At that point,
seven hex digits is still unique for a lot of them, but when we're
talking about just two orders of magnitude difference between number
of objects and the hash size, there _will_ be collisions in truncated
hash values. It's no longer even close to unrealistic - it happens all
the time.

We should both increase the default abbrev that was unrealistically
small, _and_ add a way for people to set their own default per-project
in the git config file.

This is the first step to first make it configurable; the default of 7
is not raised yet.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-11 14:42:54 -08:00
Junio C Hamano
adfe4e1ff2 Merge branch 'maint'
* maint:
  Revert "core.abbrevguard: Ensure short object names stay unique a bit longer"
2011-03-10 22:45:49 -08:00
Junio C Hamano
ea2c69ed47 Revert "core.abbrevguard: Ensure short object names stay unique a bit longer"
This reverts commit 72a5b561fc, as adding
fixed number of hexdigits more than necessary to make one object name
locally unique does not help in futureproofing the uniqueness of names
we generate today.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-10 22:41:14 -08:00
Jeff King
bbc30f9963 add packet tracing debug code
This shows a trace of all packets coming in or out of a given
program. This can help with debugging object negotiation or
other protocol issues.

To keep the code changes simple, we operate at the lowest
level, meaning we don't necessarily understand what's in the
packets. The one exception is a packet starting with "PACK",
which causes us to skip that packet and turn off tracing
(since the gigantic pack data will not be interesting to
read, at least not in the trace format).

We show both written and read packets. In the local case,
this may mean you will see packets twice (written by the
sender and read by the receiver). However, for cases where
the other end is remote, this allows you to see the full
conversation.

Packet tracing can be enabled with GIT_TRACE_PACKET=<foo>,
where <foo> takes the same arguments as GIT_TRACE.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-08 12:12:04 -08:00
Jeff King
94b3b37464 trace: add trace_strbuf
If you happen to have a strbuf, it is a little more readable
and a little more efficient to be able to print it directly
instead of jamming it through the trace_printf interface.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-08 12:12:04 -08:00
Jeff King
39bc5e4680 trace: factor out "do we want to trace" logic
As we add more tracing areas, this will avoid repeated code.

Technically, trace_printf already checks this and will avoid
printing if the trace key is not set. However, callers may
want to find out early whether or not tracing is enabled so
they can avoid doing work in the common non-trace case.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-08 12:12:04 -08:00
Jeff King
06796607ef trace: refactor to support multiple env variables
Right now you turn all tracing off and on with GIT_TRACE. To
support new types of tracing without forcing the user to see
all of them, we will soon support turning each tracing area
on with GIT_TRACE_*.

This patch lays the groundwork by providing an interface
which does not assume GIT_TRACE. However, we still maintain
the trace_printf interface so that existing callers do not
need to be refactored.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-08 12:12:04 -08:00
Jeff King
c6053543f2 trace: add trace_vprintf
This is a necessary cleanup to adding new types of trace
functions.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-08 12:12:04 -08:00
Ævar Arnfjörð Bjarmason
6578483036 i18n: add no-op _() and N_() wrappers
The _ function is for translating strings into the user's chosen
language.  The N_ macro just marks translatable strings for the
xgettext(1) tool without translating them; it is intended for use in
contexts where a function call cannot be used.  So, for example:

	fprintf(stderr, _("Expansion of alias '%s' failed; "
		"'%s' is not a git command\n"),
		cmd, argv[0]);

and

	const char *unpack_plumbing_errors[NB_UNPACK_TREES_ERROR_TYPES] = {
		/* ERROR_WOULD_OVERWRITE */
		N_("Entry '%s' would be overwritten by merge. Cannot merge."),
	[...]

Define such _ and N_ in a new gettext.h and include it in cache.h, so
they can be used everywhere.  Each just returns its argument for now.
_ is a function rather than a macro like N_ to avoid the temptation to
use _("foo") as a string literal (which would be a compile-time error
once _(s) expands to an expression for the translation of s).

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-08 12:10:03 -08:00
Shawn O. Pearce
d131b7afea sha1_file.c: Don't retain open fds on small packs
If a pack file is small enough that its entire contents fits within
one mmap window, mmap the file and then immediately close its file
descriptor.  This reduces the number of file descriptors that are
needed to read from repositories with many tiny pack files, such
as one that has received 1000 pushes (and created 1000 small pack
files) since its last repack.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-02 11:25:30 -08:00
Junio C Hamano
8978166e53 Merge branch 'jh/push-default-upstream-configname'
* jh/push-default-upstream-configname:
  push.default: Rename 'tracking' to 'upstream'
2011-02-27 21:58:31 -08:00
Junio C Hamano
fbfeeaf294 Merge branch 'lp/config-vername-check'
* lp/config-vername-check:
  Disallow empty section and variable names
  Sanity-check config variable names
2011-02-27 21:58:31 -08:00
Junio C Hamano
fc7ae9c156 Merge branch 'nd/hash-object-sanity'
* nd/hash-object-sanity:
  Make hash-object more robust against malformed objects

Conflicts:
	cache.h
2011-02-27 21:58:30 -08:00
Junio C Hamano
d5c87a802d Merge branch 'nd/struct-pathspec'
* nd/struct-pathspec: (22 commits)
  t6004: add pathspec globbing test for log family
  t7810: overlapping pathspecs and depth limit
  grep: drop pathspec_matches() in favor of tree_entry_interesting()
  grep: use writable strbuf from caller for grep_tree()
  grep: use match_pathspec_depth() for cache/worktree grepping
  grep: convert to use struct pathspec
  Convert ce_path_match() to use match_pathspec_depth()
  Convert ce_path_match() to use struct pathspec
  struct rev_info: convert prune_data to struct pathspec
  pathspec: add match_pathspec_depth()
  tree_entry_interesting(): optimize wildcard matching when base is matched
  tree_entry_interesting(): support wildcard matching
  tree_entry_interesting(): fix depth limit with overlapping pathspecs
  tree_entry_interesting(): support depth limit
  tree_entry_interesting(): refactor into separate smaller functions
  diff-tree: convert base+baselen to writable strbuf
  glossary: define pathspec
  Move tree_entry_interesting() to tree-walk.c and export it
  tree_entry_interesting(): remove dependency on struct diff_options
  Convert struct diff_options to use struct pathspec
  ...
2011-02-27 21:17:36 -08:00
Jonathan Nieder
046613c546 update-index --refresh --porcelain: add missing const
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-22 16:51:21 -08:00
Libor Pechacek
b09c53a3e3 Sanity-check config variable names
Sanity-check config variable names when adding and retrieving them.  As a side
effect code duplication between git_config_set_multivar and get_value (in
builtin/config.c) was removed and the common functionality was placed in
git_config_parse_key.

This breaks a test in t1300 which used invalid section-less keys in the tests
for "git -c". However, allowing such names there was useless, since there was
no way to set them via config file, and no part of git actually tried to use
section-less keys. This patch updates the test to use more realistic examples
as well as adding its own test.

Signed-off-by: Libor Pechacek <lpechacek@suse.cz>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-22 15:19:45 -08:00
Johan Herland
53c403116a push.default: Rename 'tracking' to 'upstream'
Users are sometimes confused with two different types of "tracking" behavior
in Git: "remote-tracking" branches (e.g. refs/remotes/*/*) versus the
merge/rebase relationship between a local branch and its @{upstream}
(controlled by branch.foo.remote and branch.foo.merge config settings).

When the push.default is set to 'tracking', it specifies that a branch should
be pushed to its @{upstream} branch. In other words, setting push.default to
'tracking' applies only to the latter of the above two types of "tracking"
behavior.

In order to make this more understandable to the user, we rename the
push.default == 'tracking' option to push.default == 'upstream'.

push.default == 'tracking' is left as a deprecated synonym for 'upstream'.

Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-16 10:21:52 -08:00
Jonathan Nieder
dab0d4108d correct type of EMPTY_TREE_SHA1_BIN
Functions such as hashcmp that expect a binary SHA-1 value take
parameters of type "unsigned char *" to avoid accepting a textual
SHA-1 passed by mistake.  Unfortunately, this means passing the string
literal EMPTY_TREE_SHA1_BIN requires an ugly cast.  Tweak the
definition of EMPTY_TREE_SHA1_BIN to produce a value of more
convenient type.

In the future the definition might change to

	extern const unsigned char empty_tree_sha1_bin[20];
	#define EMPTY_TREE_SHA1_BIN empty_tree_sha1_bin

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-14 10:48:06 -08:00
Nguyễn Thái Ngọc Duy
c879daa237 Make hash-object more robust against malformed objects
Commits, trees and tags have structure. Don't let users feed git
with malformed ones. Sooner or later git will die() when
encountering them.

Note that this patch does not check semantics. A tree that points
to non-existent objects is perfectly OK (and should be so, users
may choose to add commit first, then its associated tree for example).

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-07 15:05:25 -08:00
Nguyễn Thái Ngọc Duy
eb9cb55b94 Convert ce_path_match() to use struct pathspec
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-03 14:08:30 -08:00
Nguyễn Thái Ngọc Duy
d38f28093e tree_entry_interesting(): support wildcard matching
never_interesting optimization is disabled if there is any wildcard
pathspec, even if it only matches exactly on trees.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-03 14:08:30 -08:00
Nguyễn Thái Ngọc Duy
bc96cc87db tree_entry_interesting(): support depth limit
This is needed to replace pathspec_matches() in builtin/grep.c.

max_depth == -1 means infinite depth. Depth limit is only effective
when pathspec.recursive == 1. When pathspec.recursive == 0, the
behavior depends on match functions: non-recursive for
tree_entry_interesting() and recursive for match_pathspec{,_depth}

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-03 14:08:30 -08:00
Nguyễn Thái Ngọc Duy
0602f3e916 Add struct pathspec
The old pathspec structure remains as pathspec.raw[]. New things are
stored in pathspec.items[]. There's no guarantee that the pathspec
order in raw[] is exactly as in items[].

raw[] is external (source) data and is untouched by pathspec
manipulation functions. It eases migration from old const char ** to
this new struct.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-03 12:19:19 -08:00
Junio C Hamano
f3bb8b4b84 Merge branch 'nd/setup'
* nd/setup: (47 commits)
  setup_work_tree: adjust relative $GIT_WORK_TREE after moving cwd
  git.txt: correct where --work-tree path is relative to
  Revert "Documentation: always respect core.worktree if set"
  t0001: test git init when run via an alias
  Remove all logic from get_git_work_tree()
  setup: rework setup_explicit_git_dir()
  setup: clean up setup_discovered_git_dir()
  t1020-subdirectory: test alias expansion in a subdirectory
  setup: clean up setup_bare_git_dir()
  setup: limit get_git_work_tree()'s to explicit setup case only
  Use git_config_early() instead of git_config() during repo setup
  Add git_config_early()
  git-rev-parse.txt: clarify --git-dir
  t1510: setup case #31
  t1510: setup case #30
  t1510: setup case #29
  t1510: setup case #28
  t1510: setup case #27
  t1510: setup case #26
  t1510: setup case #25
  ...
2010-12-28 11:26:55 -08:00
Junio C Hamano
e39212ab08 Merge branch 'nd/maint-fix-add-typo-detection'
* nd/maint-fix-add-typo-detection:
  Revert "excluded_1(): support exclude files in index"
  unpack-trees: fix sparse checkout's "unable to match directories"
  unpack-trees: move all skip-worktree checks back to unpack_trees()
  dir.c: add free_excludes()
  cache.h: realign and use (1 << x) form for CE_* constants
2010-12-22 14:40:26 -08:00
Nguyễn Thái Ngọc Duy
dbdf5854b2 Add git_config_early()
This version of git_config() will be used during repository setup.
As a repository is being set up, $GIT_DIR is not nailed down yet,
git_pathdup() should not be used to get $GIT_DIR/config.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-12-22 14:34:24 -08:00
Nguyễn Thái Ngọc Duy
835183603b Remove all logic from get_git_work_tree()
This logic is now only used by cmd_init_db(). setup_* functions do not
rely on it any more. Move all the logic to cmd_init_db() and turn
get_git_work_tree() into a simple function.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-12-22 14:34:24 -08:00
Nguyễn Thái Ngọc Duy
e6aea2dba2 setup: limit get_git_work_tree()'s to explicit setup case only
get_git_work_tree() takes input as core.worktree, core.bare,
GIT_WORK_TREE and decides correct worktree setting.

Unfortunately it does not do its job well. core.worktree and
GIT_WORK_TREE should only be taken into account, if GIT_DIR is set
(which is handled by setup_explicit_git_dir). For other setup cases,
only core.bare matters.

Add a temporary variable setup_explicit to adjust get_git_work_tree()
behavior as such. This variable will be gone once setup_* rework is
done.

Also remove is_bare_repository_cfg check in set_git_work_tree() to
ease the rework. We are going to check for core.bare and core.worktree
early before setting worktree. For example, if core.bare is true, no
need to set worktree.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-12-22 14:34:24 -08:00
Junio C Hamano
620b89cd98 Merge branch 'nd/extended-sha1-relpath'
* nd/extended-sha1-relpath:
  get_sha1: teach ":$n:<path>" the same relative path logic
  get_sha1: support relative path ":path" syntax
  Make prefix_path() return char* without const

Conflicts:
	sha1_name.c
2010-12-16 12:51:05 -08:00
Junio C Hamano
6e67619d0c Merge branch 'jn/parse-options-extra'
* jn/parse-options-extra:
  update-index: migrate to parse-options API
  setup: save prefix (original cwd relative to toplevel) in startup_info
  parse-options: make resuming easier after PARSE_OPT_STOP_AT_NON_OPTION
  parse-options: allow git commands to invent new option types
  parse-options: never suppress arghelp if LITERAL_ARGHELP is set
  parse-options: do not infer PARSE_OPT_NOARG from option type
  parse-options: sanity check PARSE_OPT_NOARG flag
  parse-options: move NODASH sanity checks to parse_options_check
  parse-options: clearer reporting of API misuse
  parse-options: Don't call parse_options_check() so much
2010-12-12 21:49:53 -08:00
Junio C Hamano
47bfb3d946 Merge branch 'js/configurable-tab'
* js/configurable-tab:
  Make the tab width used for whitespace checks configurable
  apply --whitespace=fix: fix tab-in-indent
2010-12-12 21:49:52 -08:00
Nguyễn Thái Ngọc Duy
edc54fb5d4 Make prefix_path() return char* without const
prefix_path() allocates new buffer. There's no reason for it to keep
the buffer for itself and waste memory.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-12-07 14:25:46 -08:00
Nguyễn Thái Ngọc Duy
f07d6a1ad1 setup: save prefix (original cwd relative to toplevel) in startup_info
Save the path from the original cwd to the cwd at the end of the
setup procedure in the startup_info struct introduced in e37c1329
(2010-08-05).  The value cannot vary from thread to thread anyway,
since the cwd is global.

So now in your builtin command, instead of passing prefix around,
when you want to convert a user-supplied path to a cwd-relative
path, you can use startup_info->prefix directly.

Caveat: As with the return value from setup_git_directory_gently(),
startup_info->prefix would be NULL when the original cwd is not a
subdir of the toplevel.

Longer term, this would allow the prefix to be reused when several
noncooperating functions require access to the same repository (for
example, when accessing configuration before running a builtin).

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-12-07 14:19:32 -08:00
Junio C Hamano
9bec60d3a5 Merge branch 'pn/commit-autosquash'
* pn/commit-autosquash:
  add tests of commit --squash
  commit: --squash option for use with rebase --autosquash
  add tests of commit --fixup
  commit: --fixup option for use with rebase --autosquash
  pretty.c: teach format_commit_message() to reencode the output
  commit: helper methods to reduce redundant blocks of code

Conflicts:
	Documentation/git-commit.txt
	t/t3415-rebase-autosquash.sh
2010-12-03 16:13:06 -08:00
Junio C Hamano
63ae595c6d Merge branch 'jc/abbrev-guard'
* jc/abbrev-guard:
  core.abbrevguard: Ensure short object names stay unique a bit longer
2010-12-03 16:10:35 -08:00
Johannes Sixt
f4b05a4947 Make the tab width used for whitespace checks configurable
A new whitespace "rule" is added that sets the tab width to use for
whitespace checks and fix-ups and replaces the hard-coded constant 8.

Since the setting is part of the rules, it can be set per file using
.gitattributes.

The new configuration is backwards compatible because older git versions
simply ignore unknown whitespace rules.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-12-01 14:47:51 -08:00
Junio C Hamano
208247adb9 Merge branch 'cb/leading-path-removal'
* cb/leading-path-removal:
  use persistent memory for rejected paths
  do not overwrite files in leading path
  lstat_cache: optionally return match_len
  add function check_ok_to_remove()
  t7607: add leading-path tests
  t7607: use test-lib functions and check MERGE_HEAD

Conflicts:
	t/t7607-merge-overwrite.sh
2010-11-29 17:52:36 -08:00
Nguyễn Thái Ngọc Duy
2431afbf1b unpack-trees: move all skip-worktree checks back to unpack_trees()
Earlier, the will_have_skip_worktree() checks are done in various
places, which makes it hard to traverse the index tree-alike, required
by excluded_from_list(). This patch moves all the checks into two
loops in unpack_trees().

Entries in index in this operation can be classified into two
groups: ones already in index before unpack_trees() is called and ones
added to index after traverse_trees() is called.

In both groups, before checking file status on worktree, the future
skip-worktree bit must be checked, so that if an entry will be outside
worktree, worktree should not be checked.

For the first group, the future skip-worktree bit is precomputed and
stored as CE_NEW_SKIP_WORKTREE in the first loop before
traverse_trees() is called so that *way_merge() function does not need
to compute it again.

For the second group, because we don't know what entries will be in
this group until traverse_trees() finishes, operations that need
future skip-worktree check is delayed until CE_NEW_SKIP_WORKTREE is
computed in the second loop. CE_ADDED is used to mark entries in the
second group.

CE_ADDED and CE_NEW_SKIP_WORKTREE are temporary flags used in
unpack_trees().  CE_ADDED is only used by add_to_index(), which should
not be called while unpack_trees() is running.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-29 13:35:12 -08:00
Nguyễn Thái Ngọc Duy
2977ffbbe1 cache.h: realign and use (1 << x) form for CE_* constants
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-29 13:34:15 -08:00
Nguyễn Thái Ngọc Duy
a9ca8a85ef builtins: print setup info if repo is found
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-29 13:25:53 -08:00
Pat Notz
a6fa59924d commit: helper methods to reduce redundant blocks of code
* builtin/commit.c: Replace block of code with a one-liner call to
  logmsg_reencode().

* commit.c: new function for looking up a comit by name

* pretty.c: helper methods for getting output encodings

  Add helpers get_log_output_encoding() and
  get_commit_output_encoding() that eliminate some messy and duplicate
  if-blocks.

Signed-off-by: Pat Notz <patnotz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-04 13:53:34 -07:00
Junio C Hamano
72a5b561fc core.abbrevguard: Ensure short object names stay unique a bit longer
Even though git makes sure that it uses enough hexdigits to show an
abbreviated object name unambiguously, as more objects are added to the
repository over time, a short name that used to be unique will stop being
unique.  Git uses this many extra hexdigits that are more than necessary
to make the object name currently unique, in the hope that its output will
stay unique a bit longer.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-10-28 17:37:35 -07:00
Clemens Buchacher
f66caaf9c8 do not overwrite files in leading path
If the work tree contains an untracked file x, and
unpack-trees wants to checkout a path x/*, the
file x is removed unconditionally.

Instead, apply the same checks that are normally
used for untracked files, and abort if the file
cannot be removed.

Signed-off-by: Clemens Buchacher <drizzd@aon.at>
2010-10-13 14:34:09 -07:00
Jonathan Nieder
01f6fd4b4e Documentation: No argument of ALLOC_GROW should have side-effects
The explanatory comment before the definition of ALLOC_GROW carefully
lists arguments that will be used more than once and thus cannot have
side-effects; a lazy reader might conclude that the arguments not
listed are used only once and side effects safe.

Correct it to list all three arguments, avoiding this confusion.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-10-08 13:17:10 -07:00
René Scharfe
b90d9b8895 work around buggy S_ISxxx(m) implementations
There are buggy implementations of S_ISxxx(m) macros on some platforms
(e.g. NetBSD).  The issue is that NetBSD doesn't take care to wrap its
macro arguments in parentheses, so on Linux and sane systems we have
S_ISREG(m) defined as something like:

    (((m) & S_IFMT) == S_IFREG)

But on NetBSD:

    ((m & _S_IFMT) == _S_IFREG)

Since a caller in builtin/diff.c called our macro as `S_IFREG | 0644'
this bug introduced a logic error on NetBSD, since the precedence of
bit-wise & is higher than | in C.

[jc: took change description from Ævar Arnfjörð Bjarmason's patch]

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-10-06 10:51:14 -07:00
Junio C Hamano
b815a726e9 Merge branch 'kf/askpass-config'
* kf/askpass-config:
  Extend documentation of core.askpass and GIT_ASKPASS.
  Allow core.askpass to override SSH_ASKPASS.
  Add a new option 'core.askpass'.
2010-09-08 09:17:01 -07:00
Junio C Hamano
6b948a7a48 Merge branch 'jk/maint-pass-c-config-in-env'
* jk/maint-pass-c-config-in-env:
  do not pass "git -c foo=bar" params to transport helpers
  pass "git -c foo=bar" params through environment
2010-09-08 09:17:00 -07:00
Junio C Hamano
8aed4a5e38 Merge branch 'jn/merge-renormalize'
* jn/merge-renormalize:
  merge-recursive --renormalize
  rerere: never renormalize
  rerere: migrate to parse-options API
  t4200 (rerere): modernize style
  ll-merge: let caller decide whether to renormalize
  ll-merge: make flag easier to populate
  Documentation/technical: document ll_merge
  merge-trees: let caller decide whether to renormalize
  merge-trees: push choice to renormalize away from low level
  t6038 (merge.renormalize): check that it can be turned off
  t6038 (merge.renormalize): try checkout -m and cherry-pick
  t6038 (merge.renormalize): style nitpicks
  Don't expand CRLFs when normalizing text during merge
  Try normalizing files to avoid delete/modify conflicts when merging
  Avoid conflicts when merging branches with mixed normalization

Conflicts:
	builtin/rerere.c
	t/t4200-rerere.sh
2010-09-03 09:43:41 -07:00
Junio C Hamano
633142d868 Merge branch 'jn/paginate-fix'
* jn/paginate-fix:
  t7006 (pager): add missing TTY prerequisites
  merge-file: run setup_git_directory_gently() sooner
  var: run setup_git_directory_gently() sooner
  ls-remote: run setup_git_directory_gently() sooner
  index-pack: run setup_git_directory_gently() sooner
  config: run setup_git_directory_gently() sooner
  bundle: run setup_git_directory_gently() sooner
  apply: run setup_git_directory_gently() sooner
  grep: run setup_git_directory_gently() sooner
  shortlog: run setup_git_directory_gently() sooner
  git wrapper: allow setup_git_directory_gently() be called earlier
  setup: remember whether repository was found
  git wrapper: introduce startup_info struct

Conflicts:
	builtin/index-pack.c
2010-08-31 16:23:31 -07:00
Anselm Kruis
d3e7da8979 Add a new option 'core.askpass'.
Setting this option has the same effect as setting the environment variable
'GIT_ASKPASS'.

Signed-off-by: Knut Franke <k.franke@science-computing.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-31 10:49:02 -07:00
Jonathan Nieder
655e8d9c92 do not pass "git -c foo=bar" params to transport helpers
Like $GIT_CONFIG, $GIT_CONFIG_PARAMETERS needs to be suppressed by
"git push" and its cousins when running local transport helpers to
imitate remote transport well.

Noticed-by: Jeff King <peff@peff.net>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-24 09:54:00 -07:00
Jeff King
2b64fc894d pass "git -c foo=bar" params through environment
Git uses the "-c foo=bar" parameters to set a config
variable for a single git invocation. We currently do this
by making a list in the current process and consulting that
list in git_config.

This works fine for built-ins, but the config changes are
silently ignored by subprocesses, including dashed externals
and invocations to "git config" from shell scripts.

This patch instead puts them in an environment variable
which we consult when looking at config (both internally and
via calls "git config").

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-24 09:53:46 -07:00
Junio C Hamano
b95d0a2f8c Merge branch 'gb/split-cmdline-errmsg'
* gb/split-cmdline-errmsg:
  split_cmdline: Allow caller to access error string
2010-08-21 23:28:55 -07:00
Junio C Hamano
c3b9325fa6 Merge branch 'nd/fix-sparse-checkout'
* nd/fix-sparse-checkout:
  unpack-trees: mark new entries skip-worktree appropriately
  unpack-trees: do not check for conflict entries too early
  unpack-trees: let read-tree -u remove index entries outside sparse area
  unpack-trees: only clear CE_UPDATE|CE_REMOVE when skip-worktree is always set
  t1011 (sparse checkout): style nitpicks
2010-08-21 23:28:05 -07:00
Junio C Hamano
2d984464c6 Merge branch 'hv/submodule-find-ff-merge'
* hv/submodule-find-ff-merge:
  Implement automatic fast-forward merge for submodules
  setup_revisions(): Allow walking history in a submodule
  Teach ref iteration module about submodules

Conflicts:
	submodule.c
2010-08-21 23:27:59 -07:00
Junio C Hamano
aa8b8f40df Merge branch 'jn/parse-date-basic'
* jn/parse-date-basic:
  Export parse_date_basic() to convert a date string to timestamp
2010-08-12 18:31:03 -07:00
Jonathan Nieder
987460611a Standardize do { ... } while (0) style
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-12 15:44:51 -07:00
Greg Brockman
ad9ac6db5d split_cmdline: Allow caller to access error string
This allows the caller to add its own error message to that returned
by split_cmdline.  Thus error output following a failed split_cmdline
can be of the form

fatal: Bad alias.test string: cmdline ends with \

rather than

error: cmdline ends with \
fatal: Bad alias.test string

Signed-off-by: Greg Brockman <gdb@mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-11 09:36:23 -07:00
Nguyễn Thái Ngọc Duy
a60645f9c5 setup: remember whether repository was found
As v1.7.2~16^2 (git --paginate: paginate external commands
again, 2010-07-14) explains, builtins (like git config) that
do not use RUN_SETUP are not finding GIT_DIR set correctly when
it is time to launch the pager from run_builtin().  If they
were to search for a repository sooner, then the outcome of such
early repository accesses would be more predictable and reliable.

The cmd_*() functions learn whether a repository was found through the
*nongit_ok return value from setup_git_directory_gently().  If
run_builtin() is to take care of the repository search itself, that
datum needs to be retrievable from somewhere else.  Use the
startup_info struct for this.

As a bonus, this information becomes available to functions such as
git_config() which might want to avoid trying to access a repository
when none is present.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-11 09:24:00 -07:00
Nguyễn Thái Ngọc Duy
e37c1329fa git wrapper: introduce startup_info struct
The startup_info struct will collect information managed by the git
setup code, such as the prefix for relative paths passed on the
command line (i.e., path to the starting cwd from the toplevel of
the work tree) and whether a git repository has been found.

In other words, startup_info is intended to be a collection of global
variables with results that were previously returned from setup
functions.  This state is global anyway (since the cwd is), even
if it is not currently tracked that way.  Letting these values persist
means there is more flexibility in deciding when to run setup.

For now, the struct is empty.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-11 09:24:00 -07:00
Nguyễn Thái Ngọc Duy
700e66d661 unpack-trees: let read-tree -u remove index entries outside sparse area
To avoid touching the worktree outside a sparse checkout,
when the update flag is enabled unpack_trees() clears the
CE_UPDATE and CE_REMOVE flags on entries that do not match the
sparse pattern before actually committing any updates to the
index file or worktree.

The effect on the index was unintentional; sparse checkout was
never meant to prevent index updates outside the area checked
out.  And the result is very confusing: for example, after a
failed merge, currently "git reset --hard" does not reset the
state completely but an additional "git reset --mixed" will.

So stop clearing the CE_REMOVE flag.  Instead, maintain a
CE_WT_REMOVE flag to separately track whether a particular
file removal should apply to the worktree in addition to the
index or not.

The CE_WT_REMOVE flag is used already to mark files that
should be removed because of a narrowing checkout area.  That
usage will still apply; do not clear the CE_WT_REMOVE flag
in that case (detectable because the CE_REMOVE flag is not
set).

This bug masked some other bugs illustrated by the test
suite, which will be addressed by later patches.

Reported-by: Frédéric Brière <fbriere@fbriere.net>
Fixes: http://bugs.debian.org/583699

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-09 12:16:01 -07:00
Jonathan Nieder
7610fa57e6 merge-recursive --renormalize
Teach "git merge-recursive" a --renormalize option to enable the
merge.renormalize configuration.  The --no-renormalize option can
be used to override it in the negative.

So in the future, you might be able to, e.g.:

	git checkout -m -Xrenormalize otherbranch

or

	git revert -Xrenormalize otherpatch

or

	git pull --rebase -Xrenormalize

The bad part: merge.renormalize is still not honored for most
commands.  And it reveals lots of places that -X has not been plumbed
in (so we get "git merge -Xrenormalize" but not much else).

NEEDSWORK: tests

Cc: Eyvind Bernhardsen <eyvind.bernhardsen@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-06 09:20:02 -07:00
Jonathan Nieder
9644c06163 Export parse_date_basic() to convert a date string to timestamp
approxidate() is not appropriate for reading machine-written dates
because it guesses instead of erroring out on malformed dates.
parse_date() is less convenient since it returns its output as a
string.  So export the underlying function that writes a timestamp.

While at it, change the return value to match the usual convention:
return 0 for success and -1 for failure.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Acked-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-07-15 15:35:12 -07:00
Heiko Voigt
0bad611b1e Teach ref iteration module about submodules
We will use this in a later patch to extend setup_revisions() to
load revisions directly from a submodule.

Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-07-07 09:48:21 -07:00
Eyvind Bernhardsen
f217f0e86d Avoid conflicts when merging branches with mixed normalization
Currently, merging across changes in line ending normalization is
painful since files containing CRLF will conflict with normalized files,
even if the only difference between the two versions is the line
endings.  Additionally, any "real" merge conflicts that exist are
obscured because every line in the file has a conflict.

Assume you start out with a repo that has a lot of text files with CRLF
checked in (A):

      o---C
     /     \
    A---B---D

B: Add "* text=auto" to .gitattributes and normalize all files to
   LF-only

C: Modify some of the text files

D: Try to merge C

You will get a ridiculous number of LF/CRLF conflicts when trying to
merge C into D, since the repository contents for C are "wrong" wrt the
new .gitattributes file.

Fix ll-merge so that the "base", "theirs" and "ours" stages are passed
through convert_to_worktree() and convert_to_git() before a three-way
merge.  This ensures that all three stages are normalized in the same
way, removing from consideration differences that are only due to
normalization.

This feature is optional for now since it changes a low-level mechanism
and is not necessary for the majority of users.  The "merge.renormalize"
config variable enables it.

Signed-off-by: Eyvind Bernhardsen <eyvind.bernhardsen@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-07-02 15:43:15 -07:00
Junio C Hamano
cf4403a010 Merge branch 'cp/textconv-cat-file'
* cp/textconv-cat-file:
  git-cat-file.txt: Document --textconv
  t/t8007: test textconv support for cat-file
  textconv: support for cat_file
  sha1_name: add get_sha1_with_context()
2010-06-27 12:07:55 -07:00
Junio C Hamano
d5cff17eda Merge branch 'eb/core-eol'
* eb/core-eol:
  Add "core.eol" config variable
  Rename the "crlf" attribute "text"
  Add per-repository eol normalization
  Add tests for per-repository eol normalization

Conflicts:
	Documentation/config.txt
	Makefile
2010-06-21 06:02:49 -07:00
Junio C Hamano
8d676d85f7 Merge branch 'gv/portable'
* gv/portable:
  test-lib: use DIFF definition from GIT-BUILD-OPTIONS
  build: propagate $DIFF to scripts
  Makefile: Tru64 portability fix
  Makefile: HP-UX 10.20 portability fixes
  Makefile: HPUX11 portability fixes
  Makefile: SunOS 5.6 portability fix
  inline declaration does not work on AIX
  Allow disabling "inline"
  Some platforms lack socklen_t type
  Make NO_{INET_NTOP,INET_PTON} configured independently
  Makefile: some platforms do not have hstrerror anywhere
  git-compat-util.h: some platforms with mmap() lack MAP_FAILED definition
  test_cmp: do not use "diff -u" on platforms that lack one
  fixup: do not unconditionally disable "diff -u"
  tests: use "test_cmp", not "diff", when verifying the result
  Do not use "diff" found on PATH while building and installing
  enums: omit trailing comma for portability
  Makefile: -lpthread may still be necessary when libc has only pthread stubs
  Rewrite dynamic structure initializations to runtime assignment
  Makefile: pass CPPFLAGS through to fllow customization

Conflicts:
	Makefile
	wt-status.h
2010-06-21 06:02:44 -07:00