Commit Graph

402 Commits

Author SHA1 Message Date
Nguyễn Thái Ngọc Duy
c9cd60f6fa protocol-capabilities.txt: document no-done
See 3e63b21 (upload-pack: Implement no-done capability - 2011-03-14)
and 761ecf0 (fetch-pack: Implement no-done capability - 2011-03-14)
for more information.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-02-10 10:21:33 -08:00
Nguyễn Thái Ngọc Duy
087e347f26 protocol-capabilities.txt: refer multi_ack_detailed back to pack-protocol.txt
pack-protocol.txt explains in detail how multi_ack_detailed works and
what's the difference between no multi_ack, multi_ack and
multi_ack_detailed. No need to repeat here.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-02-10 10:21:33 -08:00
Nguyễn Thái Ngọc Duy
32752e966d pack-protocol.txt: clarify 'obj-id' in the last ACK after 'done'
It's introduced in 1bd8c8f (git-upload-pack: Support the multi_ack
protocol - 2005-10-28) but probably better documented in the commit
message of 78affc4 (Add multi_ack_detailed capability to
fetch-pack/upload-pack - 2009-10-30).

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-02-10 10:21:33 -08:00
Thomas Ackermann
9c96c7f3aa http-protocol.txt: don't use uppercase for variable names in "The Negotiation Algorithm"
Signed-off-by: Thomas Ackermann <th.acker@arcor.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-27 09:06:26 -08:00
Thomas Ackermann
586aa78631 create HTML for http-protocol.txt
./Documentation/technical/http-protocol.txt was missing from TECH_DOCS in Makefile.
Add it and also improve HTML formatting while still retaining good readability of the ASCII text:
- Use monospace font instead of italicized or roman font for machine output and source text
- Use roman font for things which should be body text
- Use double quotes consistently for "want" and "have" commands
- Use uppercase "C" / "S" consistently for "client" / "server";
  also use "C:" / "S:" instead of "(C)" / "(S)" for consistency and
  to avoid having formatted "(C)" as copyright symbol in HTML
- Use only spaces and not a combination of tabs and spaces for whitespace

Signed-off-by: Thomas Ackermann <th.acker@arcor.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-27 09:02:02 -08:00
Junio C Hamano
92251b1b5b Merge branch 'nd/shallow-clone'
Fetching from a shallow-cloned repository used to be forbidden,
primarily because the codepaths involved were not carefully vetted
and we did not bother supporting such usage. This attempts to allow
object transfer out of a shallow-cloned repository in a controlled
way (i.e. the receiver become a shallow repository with truncated
history).

* nd/shallow-clone: (31 commits)
  t5537: fix incorrect expectation in test case 10
  shallow: remove unused code
  send-pack.c: mark a file-local function static
  git-clone.txt: remove shallow clone limitations
  prune: clean .git/shallow after pruning objects
  clone: use git protocol for cloning shallow repo locally
  send-pack: support pushing from a shallow clone via http
  receive-pack: support pushing to a shallow clone via http
  smart-http: support shallow fetch/clone
  remote-curl: pass ref SHA-1 to fetch-pack as well
  send-pack: support pushing to a shallow clone
  receive-pack: allow pushes that update .git/shallow
  connected.c: add new variant that runs with --shallow-file
  add GIT_SHALLOW_FILE to propagate --shallow-file to subprocesses
  receive/send-pack: support pushing from a shallow clone
  receive-pack: reorder some code in unpack()
  fetch: add --update-shallow to accept refs that update .git/shallow
  upload-pack: make sure deepening preserves shallow roots
  fetch: support fetching from a shallow repository
  clone: support remote shallow repository
  ...
2014-01-17 12:21:20 -08:00
Junio C Hamano
14598b9070 Sync with 1.8.5.3
* maint:
  Git 1.8.5.3
  pack-heuristics.txt: mark up the file header properly
2014-01-13 11:39:38 -08:00
Thomas Ackermann
ebba6c0ca6 pack-heuristics.txt: mark up the file header properly
AsciiDoc wants these header-lines left-aligned.

Signed-off-by: Thomas Ackermann <th.acker@arcor.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-13 11:18:34 -08:00
Sebastian Schuberth
c6127fa3e2 builtin/help.c: speed up is_git_command() by checking for builtin commands first
Since 2dce956 is_git_command() is a bit slow as it does file I/O in
the call to list_commands_in_dir(). Avoid the file I/O by adding an
early check for the builtin commands.

Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-06 11:26:31 -08:00
Sebastian Schuberth
3f784a4dcb git.c: consistently use the term "builtin" instead of "internal command"
Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-06 11:25:50 -08:00
Vicent Marti
ae4f07fbcc pack-bitmap: implement optional name_hash cache
When we use pack bitmaps rather than walking the object
graph, we end up with the list of objects to include in the
packfile, but we do not know the path at which any tree or
blob objects would be found.

In a recently packed repository, this is fine. A fetch would
use the paths only as a heuristic in the delta compression
phase, and a fully packed repository should not need to do
much delta compression.

As time passes, though, we may acquire more objects on top
of our large bitmapped pack. If clients fetch frequently,
then they never even look at the bitmapped history, and all
works as usual. However, a client who has not fetched since
the last bitmap repack will have "have" tips in the
bitmapped history, but "want" newer objects.

The bitmaps themselves degrade gracefully in this
circumstance. We manually walk the more recent bits of
history, and then use bitmaps when we hit them.

But we would also like to perform delta compression between
the newer objects and the bitmapped objects (both to delta
against what we know the user already has, but also between
"new" and "old" objects that the user is fetching). The lack
of pathnames makes our delta heuristics much less effective.

This patch adds an optional cache of the 32-bit name_hash
values to the end of the bitmap file. If present, a reader
can use it to match bitmapped and non-bitmapped names during
delta compression.

Here are perf results for p5310:

Test                      origin/master       HEAD^                      HEAD
-------------------------------------------------------------------------------------------------
5310.2: repack to disk    36.81(37.82+1.43)   47.70(48.74+1.41) +29.6%   47.75(48.70+1.51) +29.7%
5310.3: simulated clone   30.78(29.70+2.14)   1.08(0.97+0.10) -96.5%     1.07(0.94+0.12) -96.5%
5310.4: simulated fetch   3.16(6.10+0.08)     3.54(10.65+0.06) +12.0%    1.70(3.07+0.06) -46.2%
5310.6: partial bitmap    36.76(43.19+1.81)   6.71(11.25+0.76) -81.7%    4.08(6.26+0.46) -88.9%

You can see that the time spent on an incremental fetch goes
down, as our delta heuristics are able to do their work.
And we save time on the partial bitmap clone for the same
reason.

Signed-off-by: Vicent Marti <tanoku@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-12-30 12:19:23 -08:00
Vicent Marti
0d4455a3ab documentation: add documentation for the bitmap format
This is the technical documentation for the JGit-compatible Bitmap v1
on-disk format.

Signed-off-by: Vicent Marti <tanoku@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-12-30 12:19:22 -08:00
Junio C Hamano
a4a227a725 Merge branch 'mi/typofixes' into maint
* mi/typofixes:
  contrib: typofixes
  Documentation/technical/http-protocol.txt: typofixes
  typofixes: fix misspelt comments
2013-12-17 11:34:01 -08:00
Junio C Hamano
72911f8c18 Merge branch 'cn/thin-push-capability'
Allow receive-pack to insist on receiving a fat pack from "git
push" clients.

* cn/thin-push-capability:
  send-pack: don't send a thin pack to a server which doesn't support it
2013-12-12 14:20:32 -08:00
Junio C Hamano
e66ef7ae6f Merge branch 'mh/fetch-tags-in-addition-to-normal-refs'
The "--tags" option to "git fetch" used to be literally a synonym to
a "refs/tags/*:refs/tags/*" refspec, which meant that (1) as an
explicit refspec given from the command line, it silenced the lazy
"git fetch" default that is configured, and (2) also as an explicit
refspec given from the command line, it interacted with "--prune"
to remove any tag that the remote we are fetching from does not
have.

This demotes it to an option; with it, we fetch all tags in
addition to what would be fetched without the option, and it does
not interact with the decision "--prune" makes to see what
remote-tracking refs the local has are missing the remote
counterpart.

* mh/fetch-tags-in-addition-to-normal-refs: (23 commits)
  fetch: improve the error messages emitted for conflicting refspecs
  handle_duplicate(): mark error message for translation
  ref_remote_duplicates(): extract a function handle_duplicate()
  ref_remove_duplicates(): simplify loop logic
  t5536: new test of refspec conflicts when fetching
  ref_remove_duplicates(): avoid redundant bisection
  git-fetch.txt: improve description of tag auto-following
  fetch-options.txt: simplify ifdef/ifndef/endif usage
  fetch, remote: properly convey --no-prune options to subprocesses
  builtin/remote.c:update(): use struct argv_array
  builtin/remote.c: reorder function definitions
  query_refspecs(): move some constants out of the loop
  fetch --prune: prune only based on explicit refspecs
  fetch --tags: fetch tags *in addition to* other stuff
  fetch: only opportunistically update references based on command line
  get_expanded_map(): avoid memory leak
  get_expanded_map(): add docstring
  builtin/fetch.c: reorder function definitions
  get_ref_map(): rename local variables
  api-remote.txt: correct section "struct refspec"
  ...
2013-12-12 14:14:10 -08:00
Nguyễn Thái Ngọc Duy
5dbd767601 receive/send-pack: support pushing from a shallow clone
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-12-10 16:14:17 -08:00
Nguyễn Thái Ngọc Duy
ad491366de make the sender advertise shallow commits to the receiver
If either receive-pack or upload-pack is called on a shallow
repository, shallow commits (*) will be sent after the ref
advertisement (but before the packet flush), so that the receiver has
the full "shape" of the sender's commit graph. This will be needed for
the receiver to update its .git/shallow if necessary.

This breaks the protocol for all clients trying to push to a shallow
repo, or fetch from one. Which is basically the same end result as
today's "is_repository_shallow() && die()" in receive-pack and
upload-pack. New clients will be made aware of shallow upstream and
can make use of this information.

The sender must send all shallow commits that are sent in the
following pack. It may send more shallow commits than necessary.

upload-pack for example may choose to advertise no shallow commits if
it knows in advance that the pack it's going to send contains no
shallow commits. But upload-pack is the server, so we choose the
cheaper way, send full .git/shallow and let the client deal with it.

Smart HTTP is not affected by this patch. Shallow support on
smart-http comes later separately.

(*) A shallow commit is a commit that terminates the revision
    walker. It is usually put in .git/shallow in order to keep the
    revision walker from going out of bound because there is no
    guarantee that objects behind this commit is available.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-12-10 16:14:16 -08:00
Junio C Hamano
3576f113cb Merge branch 'nv/parseopt-opt-arg'
Enhance "rev-parse --parseopt" mode to help parsing options with
an optional parameter.

* nv/parseopt-opt-arg:
  rev-parse --parseopt: add the --stuck-long mode
  Use the word 'stuck' instead of 'sticked'
2013-12-05 12:59:04 -08:00
Junio C Hamano
daad3aa255 Sync with 1.8.5.1
* maint:
  Git 1.8.5.1
  ref-iteration doc: add_submodule_odb() returns 0 for success
2013-12-03 11:44:12 -08:00
Nick Townsend
2951add0e9 ref-iteration doc: add_submodule_odb() returns 0 for success
The usage sample of add_submodule_odb() function in the Submodules
section expects non-zero return value for success, but the function
actually reports success with zero.

Helped-by: René Scharfe <l.s.r@web.de>
Reviewed-by: Heiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: Nick Townsend <nick.townsend@mac.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-12-03 10:40:40 -08:00
Carlos Martín Nieto
1ba98a79f1 send-pack: don't send a thin pack to a server which doesn't support it
Up to now git has assumed that all servers are able to fix thin
packs. This is however not always the case.

Document the 'no-thin' capability and prevent send-pack from generating
a thin pack if the server advertises it.

Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-11-25 13:16:19 -08:00
Karsten Blees
efc684245b remove old hash.[ch] implementation
Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-11-18 13:04:25 -08:00
Karsten Blees
6a364ced49 add a hashtable implementation that supports O(1) removal
The existing hashtable implementation (in hash.[ch]) uses open addressing
(i.e. resolve hash collisions by distributing entries across the table).
Thus, removal is difficult to implement with less than O(n) complexity.
Resolving collisions of entries with identical hashes (e.g. via chaining)
is left to the client code.

Add a hashtable implementation that supports O(1) removal and is slightly
easier to use due to builtin entry chaining.

Supports all basic operations init, free, get, add, remove and iteration.

Also includes ready-to-use hash functions based on the public domain FNV-1
algorithm (http://www.isthe.com/chongo/tech/comp/fnv).

The per-entry data structure (hashmap_entry) is piggybacked in front of
the client's data structure to save memory. See test-hashmap.c for usage
examples.

The hashtable is resized by a factor of four when 80% full. With these
settings, average memory consumption is about 2/3 of hash.[ch], and
insertion is about twice as fast due to less frequent resizing.

Lookups are also slightly faster, because entries are strictly confined to
their bucket (i.e. no data of other buckets needs to be traversed).

Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-11-18 13:03:51 -08:00
Masanari Iida
7e7cf80d74 Documentation/technical/http-protocol.txt: typofixes
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-11-12 09:42:08 -08:00
Nicolas Vigier
b0d12fc9b2 Use the word 'stuck' instead of 'sticked'
The past participle of 'stick' is 'stuck'.

Signed-off-by: Nicolas Vigier <boklm@mars-attacks.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-10-31 15:47:38 -07:00
Michael Haggerty
5b2515f400 api-remote.txt: correct section "struct refspec"
* Replace reference to function parse_ref_spec() with references to
  functions parse_fetch_refspec() and parse_push_refspec().

* Correct description of src and dst: they *do* include the '*'
  characters.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-10-24 13:28:28 -07:00
Junio C Hamano
4197361e39 Merge branch 'mg/more-textconv'
Make "git grep" and "git show" pay attention to --textconv when
dealing with blob objects.

* mg/more-textconv:
  grep: honor --textconv for the case rev:path
  grep: allow to use textconv filters
  t7008: demonstrate behavior of grep with textconv
  cat-file: do not die on --textconv without textconv filters
  show: honor --textconv for blobs
  diff_opt: track whether flags have been set explicitly
  t4030: demonstrate behavior of show with textconv
2013-10-23 13:21:31 -07:00
Junio C Hamano
287c0feeab Merge branch 'ss/doclinks'
When we converted many documents that were traditionally text-only
to be formatted to AsciiDoc, we did not update links that point at
them to refer to the formatted HTML files.

* ss/doclinks:
  Documentation: make AsciiDoc links always point to HTML files
2013-09-17 11:42:54 -07:00
Junio C Hamano
8ee9a18300 Merge branch 'mn/doc-pack-heu-remove-dead-pastebin'
* mn/doc-pack-heu-remove-dead-pastebin:
  remove dead pastebin link from pack-heuristics document
2013-09-12 14:41:47 -07:00
Junio C Hamano
b02f5aeda6 Merge branch 'jl/submodule-mv'
"git mv A B" when moving a submodule A does "the right thing",
inclusing relocating its working tree and adjusting the paths in
the .gitmodules file.

* jl/submodule-mv: (53 commits)
  rm: delete .gitmodules entry of submodules removed from the work tree
  mv: update the path entry in .gitmodules for moved submodules
  submodule.c: add .gitmodules staging helper functions
  mv: move submodules using a gitfile
  mv: move submodules together with their work trees
  rm: do not set a variable twice without intermediate reading.
  t6131 - skip tests if on case-insensitive file system
  parse_pathspec: accept :(icase)path syntax
  pathspec: support :(glob) syntax
  pathspec: make --literal-pathspecs disable pathspec magic
  pathspec: support :(literal) syntax for noglob pathspec
  kill limit_pathspec_to_literal() as it's only used by parse_pathspec()
  parse_pathspec: preserve prefix length via PATHSPEC_PREFIX_ORIGIN
  parse_pathspec: make sure the prefix part is wildcard-free
  rename field "raw" to "_raw" in struct pathspec
  tree-diff: remove the use of pathspec's raw[] in follow-rename codepath
  remove match_pathspec() in favor of match_pathspec_depth()
  remove init_pathspec() in favor of parse_pathspec()
  remove diff_tree_{setup,release}_paths
  convert common_prefix() to use struct pathspec
  ...
2013-09-09 14:36:15 -07:00
Sebastian Schuberth
d5ff3b4be5 Documentation: make AsciiDoc links always point to HTML files
AsciiDoc's "link" is supposed to create hyperlinks for HTML output, so
prefer a "link" to point to an HTML file instead of a text file if an HTML
version of the file is being generated. For RelNotes, keep pointing to
text files as no equivalent HTML files are generated.

If appropriate, also update the link description to not contain the linked
file's extension.

Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-06 14:49:06 -07:00
Michal Nazarewicz
4b36374955 remove dead pastebin link from pack-heuristics document
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Acked-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-23 12:09:31 -07:00
Shawn O. Pearce
4c6fffe2ae Document the HTTP transport protocols
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Revised-by: Tay Ray Chuan <rctay89@gmail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-21 11:37:53 -07:00
Junio C Hamano
d50cb7569c Merge branch 'ob/typofixes'
* ob/typofixes:
  many small typofixes
2013-08-01 12:01:01 -07:00
Junio C Hamano
35f5eaa2ee Merge branch 'jk/capabilities-doc'
* jk/capabilities-doc:
  document 'allow-tip-sha1-in-want' capability
  document 'quiet' receive-pack capability
  document 'agent' protocol capability
  docs: note that receive-pack knows side-band-64k capability
  docs: fix 'report-status' protocol capability thinko
2013-07-30 09:16:42 -07:00
Ondřej Bílka
98e023dea4 many small typofixes
Signed-off-by: Ondřej Bílka <neleai@seznam.cz>
Reviewed-by: Marc Branchaud <marcnarc@xiplink.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-29 12:32:25 -07:00
Nguyễn Thái Ngọc Duy
4acbe91a82 document 'allow-tip-sha1-in-want' capability
See 390eb36 (upload-pack: optionally allow fetching from the tips of
hidden refs - 2013-01-28) for more information.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-26 08:33:38 -07:00
Jeff King
69fb96037f document 'quiet' receive-pack capability
This was added in c207e34 (fix push --quiet: add 'quiet'
capability to receive-pack, 2012-01-08) but never
documented.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-24 15:57:01 -07:00
Jeff King
af608260f6 document 'agent' protocol capability
This was added in ff5effd (include agent identifier in
capability string, 2012-08-03), but neither the syntax nor
the semantics were ever documented outside of the commit
message.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-24 15:57:01 -07:00
Jeff King
9354b9a4f0 docs: note that receive-pack knows side-band-64k capability
The protocol-capabilities documentation notes that any
capabilities not explicitly mentioned for receive-pack work
only for upload-pack.

Receive-pack has advertised and understood side-band-64k
since 38a81b4 (receive-pack: Wrap status reports inside
side-band-64k, 2010-02-05), but we do not mention it
explicitly. Let's do so.

Note that receive-pack does not understand side-band, which
was obsolete by that point.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-24 15:57:01 -07:00
Jeff King
9a621ad085 docs: fix 'report-status' protocol capability thinko
The report-status capability is understood by receive-pack,
not upload-pack.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-24 15:57:01 -07:00
Ondřej Bílka
17b83d71d5 typofix: documentation
Signed-off-by: Ondřej Bílka <neleai@seznam.cz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-22 16:06:48 -07:00
Nguyễn Thái Ngọc Duy
8f4f8f4579 guard against new pathspec magic in pathspec matching code
GUARD_PATHSPEC() marks pathspec-sensitive code, basically all those
that touch anything in 'struct pathspec' except fields "nr" and
"original". GUARD_PATHSPEC() is not supposed to fail. It's mainly to
help the designers catch unsupported codepaths.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-15 10:56:07 -07:00
Nguyễn Thái Ngọc Duy
87323bdace add parse_pathspec() that converts cmdline args to struct pathspec
Currently to fill a struct pathspec, we do:

   const char **paths;
   paths = get_pathspec(prefix, argv);
   ...
   init_pathspec(&pathspec, paths);

"paths" can only carry bare strings, which loses information from
command line arguments such as pathspec magic or the prefix part's
length for each argument.

parse_pathspec() is introduced to combine the two calls into one. The
plan is gradually replace all get_pathspec() and init_pathspec() with
parse_pathspec(). get_pathspec() now becomes a thin wrapper of
parse_pathspec().

parse_pathspec() allows the caller to reject the pathspec magics that
it does not support. When a new pathspec magic is introduced, we can
enable it per command after making sure that all underlying code has no
problem with the new magic.

"flags" parameter is currently unused. But it would allow callers to
pass certain instructions to parse_pathspec, for example forcing
literal pathspec when no magic is used.

With the introduction of parse_pathspec, there are now two functions
that can initialize struct pathspec: init_pathspec and
parse_pathspec. Any semantic changes in struct pathspec must be
reflected in both functions. init_pathspec() will be phased out in
favor of parse_pathspec().

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-15 10:56:06 -07:00
Junio C Hamano
0d07e98e74 Merge branch 'wk/doc-in-linux-3.x-era'
Update documentation to match more recent realities.

* wk/doc-in-linux-3.x-era:
  Documentation: Update 'linux-2.6.git' -> 'linux.git'
  Documentation: Update the NFS remote examples to use the staging repo
  doc/clone: Pick more compelling paths for the --reference example
  doc/clone: Remove the '--bare -l -s' example
2013-07-01 12:41:34 -07:00
Junio C Hamano
2ddc898bc0 Merge branch 'ph/builtin-srcs-are-in-subdir-these-days'
* ph/builtin-srcs-are-in-subdir-these-days:
  fix "builtin-*" references to be "builtin/*"
2013-06-26 15:07:48 -07:00
W. Trevor King
283efb0108 Documentation: Update 'linux-2.6.git' -> 'linux.git'
The 3.x tree has been out for a while now.  The -2.6 repository name
survived the initial release [1], but kernel.org now only lists
'linux.git' (for aegl as well as torvalds) [2].

[1]: http://article.gmane.org/gmane.linux.kernel/1147422
  On 2011-05-30 01:47:57 GMT, Linus Torvalds wrote:
  > ... yes, that means that my git tree is still called
  > "linux-2.6.git" on kernel.org.
[2]: http://git.kernel.org/cgit/

Signed-off-by: W. Trevor King <wking@tremily.us>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-22 23:36:48 -07:00
Phil Hord
09b7e2204a fix "builtin-*" references to be "builtin/*"
Documentation and some comments still refer to files in builtin/
as 'builtin-*.[cho]'.  Update these to show the correct location.

Signed-off-by: Phil Hord <hordp@cisco.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Assisted-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-18 11:05:51 -07:00
Junio C Hamano
3e1e7624aa Merge branch 'jc/prune-all'
We used the approxidate() parser for "--expire=<timestamp>" options
of various commands, but it is better to treat --expire=all and
--expire=now a bit more specially than using the current timestamp.
Update "git gc" and "git reflog" with a new parsing function for
expiry dates.

* jc/prune-all:
  prune: introduce OPT_EXPIRY_DATE() and use it
  api-parse-options.txt: document "no-" for non-boolean options
  git-gc.txt, git-reflog.txt: document new expiry options
  date.c: add parse_expiry_date()
2013-05-29 14:23:04 -07:00
Junio C Hamano
6c374008b1 diff_opt: track whether flags have been set explicitly
The diff_opt infrastructure sets flags based on defaults and command
line options.  It is impossible to tell whether a flag has been set
as a default or on explicit request.  Update the structure so that
this detection is possible:

 * Add an extra "opt->touched_flags" that keeps track of all the
   fields that have been touched by DIFF_OPT_SET and DIFF_OPT_CLR.

 * You may continue setting the default values to the flags, like
   commands in the "log" family do in cmd_log_init_defaults(), but
   after you finished setting the defaults, you clear the
   touched_flags field;

 * And then you let the usual callchain call diff_opt_parse(),
   allowing the opt->flags be set or unset, while keeping track of
   which bits the user touched;

 * There is an optional callback "opt->set_default" that is called
   at the very beginning to let you inspect touched_flags and update
   opt->flags appropriately, before the remainder of the diffcore
   machinery is set up, taking the opt->flags value into account.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-10 10:24:17 -07:00
Michael Heemskerk
af04fa2a78 upload-pack: ignore 'shallow' lines with unknown obj-ids
When the client sends a 'shallow' line for an object that the server does
not have, the server currently dies with the error: "did not find object
for shallow <obj-id>".  The client may have truncated the history at
the commit by fetching shallowly from a different server, or the commit
may have been garbage collected by the server. In either case, this
unknown commit is not relevant for calculating the pack that is to be
sent and can be safely ignored, and it is not used when recomputing where
the updated history of the client is cauterised.

The documentation in technical/pack-protocol.txt has been updated to
remove the restriction that "Clients MUST NOT mention an obj-id which it
does not know exists on the server". This requirement is not realistic
because clients cannot know whether an object has been garbage collected
by the server.

Signed-off-by: Michael Heemskerk <mheemskerk@atlassian.com>
Reviewed-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-28 22:33:53 -07:00
Junio C Hamano
27ec394a97 prune: introduce OPT_EXPIRY_DATE() and use it
Earlier we added support for --expire=all (or --expire=now) that
considers all crufts, regardless of their age, as eligible for
garbage collection by turning command argument parsers that use
approxidate() to use parse_expiry_date(), but "git prune" used a
built-in parse-options facility OPT_DATE() and did not benefit from
the new function.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-25 11:42:10 -07:00
Junio C Hamano
7093d2c0dd Merge branch 'kb/status-ignored-optim-2'
Fixes a handful of issues in the code to traverse working tree to
find untracked and/or ignored files, cleans up and optimizes the
codepath in general.

* kb/status-ignored-optim-2:
  dir.c: git-status --ignored: don't scan the work tree twice
  dir.c: git-status --ignored: don't scan the work tree three times
  dir.c: git-status: avoid is_excluded checks for tracked files
  dir.c: replace is_path_excluded with now equivalent is_excluded API
  dir.c: unify is_excluded and is_path_excluded APIs
  dir.c: move prep_exclude
  dir.c: factor out parts of last_exclude_matching for later reuse
  dir.c: git-clean -d -X: don't delete tracked directories
  dir.c: make 'git-status --ignored' work within leading directories
  dir.c: git-status --ignored: don't list empty directories as ignored
  dir.c: git-ls-files --directories: don't hide empty directories
  dir.c: git-status --ignored: don't list empty ignored directories
  dir.c: git-status --ignored: don't list files in ignored directories
  dir.c: git-status --ignored: don't drop ignored directories
2013-04-23 11:21:23 -07:00
Junio C Hamano
ad77690fe4 Merge branch 'ta/glossary'
* ta/glossary:
  glossary: improve definitions of refspec and pathspec
  The name of the hash function is "SHA-1", not "SHA1"
  glossary: improve description of SHA-1 related topics
  glossary: remove outdated/misleading/irrelevant entries
2013-04-21 18:40:15 -07:00
Junio C Hamano
d7bffe9fb6 Merge branch 'ap/strbuf-humanize'
Teach "--human-readable" aka "-H" option to "git count-objects" to
show various large numbers in Ki/Mi/GiB scaled as necessary.

* ap/strbuf-humanize:
  count-objects: add -H option to humanize sizes
  strbuf: create strbuf_humanise_bytes() to show byte sizes
2013-04-19 13:31:27 -07:00
Michael Haggerty
8a09e6c5f9 api-parse-options.txt: document "no-" for non-boolean options
Document that the "no-" prefix can also be used for non-boolean
options.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-18 09:30:28 -07:00
Karsten Blees
0aaf62b6e0 dir.c: git-status --ignored: don't scan the work tree twice
'git-status --ignored' still scans the work tree twice to collect
untracked and ignored files, respectively.

fill_directory / read_directory already supports collecting untracked and
ignored files in a single directory scan. However, the DIR_COLLECT_IGNORED
flag to enable this has some git-add specific side-effects (e.g. it
doesn't recurse into ignored directories, so listing ignored files with
--untracked=all doesn't work).

The DIR_SHOW_IGNORED flag doesn't list untracked files and returns ignored
files in dir_struct.entries[] (instead of dir_struct.ignored[] as
DIR_COLLECT_IGNORED). DIR_SHOW_IGNORED is used all throughout git.

We don't want to break the existing API, so lets introduce a new flag
DIR_SHOW_IGNORED_TOO that lists untracked as well as ignored files similar
to DIR_COLLECT_FILES, but will recurse into sub-directories based on the
other flags as DIR_SHOW_IGNORED does.

In dir.c::read_directory_recursive, add ignored files to either
dir_struct.entries[] or dir_struct.ignored[] based on the flags. Also move
the DIR_COLLECT_IGNORED case here so that filling result lists is in a
common place.

In wt-status.c::wt_status_collect_untracked, use the new flag and read
results from dir_struct.ignored[]. Remove the extra fill_directory call.

builtin/check-ignore.c doesn't call fill_directory, setting the git-add
specific DIR_COLLECT_IGNORED flag has no effect here. Remove for clarity.

Update API documentation to reflect the changes.

Performance: with this patch, 'git-status --ignored' is typically as fast
as 'git-status'.

Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-15 12:36:42 -07:00
Thomas Ackermann
d5fa1f1a69 The name of the hash function is "SHA-1", not "SHA1"
Use "SHA-1" instead of "SHA1" whenever we talk about the hash function.
When used as a programming symbol, we keep "SHA1".

Signed-off-by: Thomas Ackermann <th.acker@arcor.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-15 11:08:37 -07:00
Stefano Lattarini
e1c3bf496f doc: various spelling fixes
Most of these were found using Lucas De Marchi's codespell tool.

Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-12 12:00:52 -07:00
Junio C Hamano
7f20008d14 Merge branch 'maint-1.8.1' into maint
* maint-1.8.1:
  fast-export: fix argument name in error messages
  Documentation: distinguish between ref and offset deltas in pack-format
2013-04-12 11:48:38 -07:00
Stefan Saasen
06cb843fea Documentation: distinguish between ref and offset deltas in pack-format
eb32d236 introduced the OBJ_OFS_DELTA object that uses a relative offset to
identify the base object instead of the 20-byte SHA1 reference. The pack file
documentation only mentions the SHA1 based reference in its description of the
deltified object entry.

Update the pack format documentation to clarify that the deltified object
representation refers to its base using either a relative negative offset or
the absolute SHA1 identifier.

Signed-off-by: Stefan Saasen <ssaasen@atlassian.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-12 09:14:01 -07:00
Antoine Pelisse
079b546a29 strbuf: create strbuf_humanise_bytes() to show byte sizes
Humanization of downloaded size is done in the same function as text
formatting in 'process.c'. The code cannot be reused easily elsewhere.

Separate text formatting from size simplification and make the
function public in strbuf so that it can easily be used by other
callers.

We now can use strbuf_humanise_bytes() for both downloaded size and
download speed calculation. One of the drawbacks is that speed will
now look like this when download is stalled: "0 bytes/s" instead of
"0 KiB/s".

Signed-off-by: Antoine Pelisse <apelisse@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-10 12:58:33 -07:00
Junio C Hamano
f7b1ad870c Merge branch 'maint-1.8.1' into maint
* maint-1.8.1:
  bundle: Add colons to list headings in "verify"
  bundle: Fix "verify" output if history is complete
  Documentation: filter-branch env-filter example
  git-filter-branch.txt: clarify ident variables usage
  git-compat-util.h: Provide missing netdb.h definitions
  describe: Document --match pattern format
  Documentation/githooks: Explain pre-rebase parameters
  update-index: list supported idx versions and their features
  diff-options: unconfuse description of --color
  read-cache.c: use INDEX_FORMAT_{LB,UB} in verify_hdr()
  index-format.txt: mention of v4 is missing in some places
2013-03-25 13:46:42 -07:00
Junio C Hamano
865e99b5fd Merge branch 'nd/doc-index-format'
Update the index format documentation to mention the v4 format.

* nd/doc-index-format:
  update-index: list supported idx versions and their features
  read-cache.c: use INDEX_FORMAT_{LB,UB} in verify_hdr()
  index-format.txt: mention of v4 is missing in some places
2013-03-19 12:15:14 -07:00
Nguyễn Thái Ngọc Duy
300e39f6aa index-format.txt: mention of v4 is missing in some places
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-22 12:47:14 -08:00
Junio C Hamano
e34c7e2b51 Merge branch 'ta/doc-no-small-caps'
Update documentation to change "GIT" which was a poor-man's small
caps to "Git".  The latter was the intended spelling.

Also change "git" spelled in all-lowercase to "Git" when it refers
to the system as the whole or the concept it embodies, as opposed to
the command the end users would type.

* ta/doc-no-small-caps:
  Documentation: StGit is the right spelling, not StGIT
  Documentation: describe the "repository" in repository-layout
  Documentation: add a description for 'gitfile' to glossary
  Documentation: do not use undefined terms git-dir and git-file
  Documentation: the name of the system is 'Git', not 'git'
  Documentation: avoid poor-man's small caps GIT
2013-02-05 16:13:32 -08:00
Junio C Hamano
149a4211a4 Merge branch 'jc/custom-comment-char'
Allow a configuration variable core.commentchar to customize the
character used to comment out the hint lines in the edited text from
the default '#'.

* jc/custom-comment-char:
  Allow custom "comment char"
2013-02-04 10:23:49 -08:00
Thomas Ackermann
2de9b71138 Documentation: the name of the system is 'Git', not 'git'
Signed-off-by: Thomas Ackermann <th.acker@arcor.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-01 13:53:33 -08:00
Thomas Ackermann
48a8c26c62 Documentation: avoid poor-man's small caps GIT
In the earlier days, we used to spell the name of the system as GIT,
to simulate as if it were typeset with capital G and IT in small
caps.  Later we stopped doing so at around 1.6.5 days.

Let's stop doing so throughout the documentation.  The name to refer
to the whole system (and the concept it embodies) is "Git"; the
command end-users type is "git".  And document this in the coding
guideline.

Signed-off-by: Thomas Ackermann <th.acker@arcor.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-01 13:53:25 -08:00
Junio C Hamano
2532d891a4 Merge branch 'nd/fetch-depth-is-broken'
"git fetch --depth" was broken in at least three ways.  The
resulting history was deeper than specified by one commit, it was
unclear how to wipe the shallowness of the repository with the
command, and documentation was misleading.

* nd/fetch-depth-is-broken:
  fetch: elaborate --depth action
  upload-pack: fix off-by-one depth calculation in shallow clone
  fetch: add --unshallow for turning shallow repo into complete one
2013-02-01 12:39:24 -08:00
Junio C Hamano
ce956fc48e Merge branch 'mh/ceiling' into maint
An element on GIT_CEILING_DIRECTORIES list that does not name the
real path to a directory (i.e. a symbolic link) could have caused
the GIT_DIR discovery logic to escape the ceiling.

* mh/ceiling:
  string_list_longest_prefix(): remove function
  setup_git_directory_gently_1(): resolve symlinks in ceiling paths
  longest_ancestor_length(): require prefix list entries to be normalized
  longest_ancestor_length(): take a string_list argument for prefixes
  longest_ancestor_length(): use string_list_split()
  Introduce new function real_path_if_valid()
  real_path_internal(): add comment explaining use of cwd
  Introduce new static function real_path_internal()
2013-01-28 11:07:18 -08:00
Junio C Hamano
a39b15b4f6 Merge branch 'as/check-ignore'
Add a new command "git check-ignore" for debugging .gitignore
files.

The variable names may want to get cleaned up but that can be done
in-tree.

* as/check-ignore:
  clean.c, ls-files.c: respect encapsulation of exclude_list_groups
  t0008: avoid brace expansion
  add git-check-ignore sub-command
  setup.c: document get_pathspec()
  add.c: extract new die_if_path_beyond_symlink() for reuse
  add.c: extract check_path_for_gitlink() from treat_gitlinks() for reuse
  pathspec.c: rename newly public functions for clarity
  add.c: move pathspec matchers into new pathspec.c for reuse
  add.c: remove unused argument from validate_pathspec()
  dir.c: improve docs for match_pathspec() and match_pathspec_depth()
  dir.c: provide clear_directory() for reclaiming dir_struct memory
  dir.c: keep track of where patterns came from
  dir.c: use a single struct exclude_list per source of excludes

Conflicts:
	builtin/ls-files.c
	dir.c
2013-01-23 21:19:10 -08:00
Junio C Hamano
eff80a9fd9 Allow custom "comment char"
Some users do want to write a line that begin with a pound sign, #,
in their commit log message.  Many tracking system recognise
a token of #<bugid> form, for example.

The support we offer these use cases is not very friendly to the end
users.  They have a choice between

 - Don't do it.  Avoid such a line by rewrapping or indenting; and

 - Use --cleanup=whitespace but remove all the hint lines we add.

Give them a way to set a custom comment char, e.g.

    $ git -c core.commentchar="%" commit

so that they do not have to do either of the two workarounds.

[jc: although I started the topic, all the tests and documentation
updates, many of the call sites of the new strbuf_add_commented_*()
functions, and the change to git-submodule.sh scripted Porcelain are
from Ralf.]

Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-16 12:48:22 -08:00
Junio C Hamano
750a6cacf4 Merge branch 'jk/unify-exit-code-by-receiving-signal' into maint
* jk/unify-exit-code-by-receiving-signal:
  run-command: encode signal death as a positive integer
2013-01-14 08:01:27 -08:00
Junio C Hamano
6cf0a9e9fc Merge branch 'mk/maint-graph-infinity-loop' into maint
* mk/maint-graph-infinity-loop:
  graph.c: infinite loop in git whatchanged --graph -m
2013-01-14 07:32:18 -08:00
Junio C Hamano
edb6ad5b0a Merge branch 'jk/unify-exit-code-by-receiving-signal'
The internal logic had to deal with two representations of a death
of a child process by a signal.

* jk/unify-exit-code-by-receiving-signal:
  run-command: encode signal death as a positive integer
2013-01-11 18:34:32 -08:00
Junio C Hamano
ab60f2ce2d Merge branch 'as/api-allocation-doc' into maint
* as/api-allocation-doc:
  api-allocation-growing.txt: encourage better variable naming
2013-01-11 16:51:01 -08:00
Nguyễn Thái Ngọc Duy
4dcb167fc3 fetch: add --unshallow for turning shallow repo into complete one
The user can do --depth=2147483647 (*) for restoring complete repo
now. But it's hard to remember. Any other numbers larger than the
longest commit chain in the repository would also do, but some
guessing may be involved. Make easy-to-remember --unshallow an alias
for --depth=2147483647.

Make upload-pack recognize this special number as infinite depth. The
effect is essentially the same as before, except that upload-pack is
more efficient because it does not have to traverse to the bottom
anymore.

The chance of a user actually wanting exactly 2147483647 commits
depth, not infinite, on a repository with a history that long, is
probably too small to consider. The client can learn to add or
subtract one commit to avoid the special treatment when that actually
happens.

(*) This is the largest positive number a 32-bit signed integer can
    contain. JGit and older C Git store depth as "int" so both are OK
    with this number. Dulwich does not support shallow clone.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-11 09:09:30 -08:00
Junio C Hamano
52f6eec305 Merge branch 'as/api-allocation-doc'
* as/api-allocation-doc:
  api-allocation-growing.txt: encourage better variable naming
2013-01-10 13:47:40 -08:00
Junio C Hamano
d912b0e44f Merge branch 'as/dir-c-cleanup'
Refactor and generally clean up the directory traversal API
implementation.

* as/dir-c-cleanup:
  dir.c: rename free_excludes() to clear_exclude_list()
  dir.c: refactor is_path_excluded()
  dir.c: refactor is_excluded()
  dir.c: refactor is_excluded_from_list()
  dir.c: rename excluded() to is_excluded()
  dir.c: rename excluded_from_list() to is_excluded_from_list()
  dir.c: rename path_excluded() to is_path_excluded()
  dir.c: rename cryptic 'which' variable to more consistent name
  Improve documentation and comments regarding directory traversal API
  api-directory-listing.txt: update to match code
2013-01-10 13:47:25 -08:00
Adam Spiers
368aa52952 add git-check-ignore sub-command
This works in a similar manner to git-check-attr.

Thanks to Jeff King and Junio C Hamano for the idea:
http://thread.gmane.org/gmane.comp.version-control.git/108671/focus=108815

Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-06 14:26:38 -08:00
Adam Spiers
270be81604 dir.c: provide clear_directory() for reclaiming dir_struct memory
By the end of a directory traversal, a dir_struct instance will
typically contains pointers to various data structures on the heap.
clear_directory() provides a convenient way to reclaim that memory.

Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-06 14:26:37 -08:00
Adam Spiers
c082df2453 dir.c: use a single struct exclude_list per source of excludes
Previously each exclude_list could potentially contain patterns
from multiple sources.  For example dir->exclude_list[EXC_FILE]
would typically contain patterns from .git/info/exclude and
core.excludesfile, and dir->exclude_list[EXC_DIRS] could contain
patterns from multiple per-directory .gitignore files during
directory traversal (i.e. when dir->exclude_stack was more than
one item deep).

We split these composite exclude_lists up into three groups of
exclude_lists (EXC_CMDL / EXC_DIRS / EXC_FILE as before), so that each
exclude_list now contains patterns from a single source.  This will
allow us to cleanly track the origin of each pattern simply by adding
a src field to struct exclude_list, rather than to struct exclude,
which would make memory management of the source string tricky in the
EXC_DIRS case where its contents are dynamically generated.

Similarly, by moving the filebuf member from struct exclude_stack to
struct exclude_list, it allows us to track and subsequently free
memory buffers allocated during the parsing of all exclude files,
rather than only tracking buffers allocated for files in the EXC_DIRS
group.

Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-06 14:25:06 -08:00
Adam Spiers
5062f9e1b5 api-allocation-growing.txt: encourage better variable naming
The documentation for the ALLOC_GROW API implicitly encouraged
developers to use "ary" as the variable name for the array which is
dynamically grown.  However "ary" is an unusual abbreviation hardly
used anywhere else in the source tree, and it is also better to name
variables based on their contents not on their type.

Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-06 12:57:56 -08:00
Jeff King
709ca730f8 run-command: encode signal death as a positive integer
When a sub-command dies due to a signal, we encode the
signal number into the numeric exit status as "signal -
128". This is easy to identify (versus a regular positive
error code), and when cast to an unsigned integer (e.g., by
feeding it to exit), matches what a POSIX shell would return
when reporting a signal death in $? or through its own exit
code.

So we have a negative value inside the code, but once it
passes across an exit() barrier, it looks positive (and any
code we receive from a sub-shell will have the positive
form). E.g., death by SIGPIPE (signal 13) will look like
-115 to us in inside git, but will end up as 141 when we
call exit() with it. And a program killed by SIGPIPE but run
via the shell will come to us with an exit code of 141.

Unfortunately, this means that when the "use_shell" option
is set, we need to be on the lookout for _both_ forms. We
might or might not have actually invoked the shell (because
we optimize out some useless shell calls). If we didn't invoke
the shell, we will will see the sub-process's signal death
directly, and run-command converts it into a negative value.
But if we did invoke the shell, we will see the shell's
128+signal exit status. To be thorough, we would need to
check both, or cast the value to an unsigned char (after
checking that it is not -1, which is a magic error value).

Fortunately, most callsites do not care at all whether the
exit was from a code or from a signal; they merely check for
a non-zero status, and sometimes propagate the error via
exit(). But for the callers that do care, we can make life
slightly easier by just using the consistent positive form.

This actually fixes two minor bugs:

  1. In launch_editor, we check whether the editor died from
     SIGINT or SIGQUIT. But we checked only the negative
     form, meaning that we would fail to notice a signal
     death exit code which was propagated through the shell.

  2. In handle_alias, we assume that a negative return value
     from run_command means that errno tells us something
     interesting (like a fork failure, or ENOENT).
     Otherwise, we simply propagate the exit code. Negative
     signal death codes confuse us, and we print a useless
     "unable to run alias 'foo': Success" message. By
     encoding signal deaths using the positive form, the
     existing code just propagates it as it would a normal
     non-zero exit code.

The downside is that callers of run_command can no longer
differentiate between a signal received directly by the
sub-process, and one propagated. However, no caller
currently cares, and since we already optimize out some
calls to the shell under the hood, that distinction is not
something that should be relied upon by callers.

Fix the same logic in t/test-terminal.perl for consistency [jc:
raised by Jonathan in the discussion].

Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Johannes Sixt <j6t@kdbg.org>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-06 11:09:18 -08:00
Junio C Hamano
4b32367ddc Merge branch 'mk/maint-graph-infinity-loop'
The --graph code fell into infinite loop when asked to do what the
code did not expect.

* mk/maint-graph-infinity-loop:
  graph.c: infinite loop in git whatchanged --graph -m
2013-01-02 10:39:09 -08:00
Junio C Hamano
f470e901f2 Merge branch 'mh/ceiling'
An element on GIT_CEILING_DIRECTORIES list that does not name the
real path to a directory (i.e. a symbolic link) could have caused
the GIT_DIR discovery logic to escape the ceiling.

* mh/ceiling:
  string_list_longest_prefix(): remove function
  setup_git_directory_gently_1(): resolve symlinks in ceiling paths
  longest_ancestor_length(): require prefix list entries to be normalized
  longest_ancestor_length(): take a string_list argument for prefixes
  longest_ancestor_length(): use string_list_split()
  Introduce new function real_path_if_valid()
  real_path_internal(): add comment explaining use of cwd
  Introduce new static function real_path_internal()
2013-01-02 10:36:59 -08:00
Adam Spiers
95a68344af Improve documentation and comments regarding directory traversal API
traversal API has a few potentially confusing properties.  These
comments clarify a few key aspects and will hopefully make it easier
to understand for other newcomers in the future.

Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-28 12:07:45 -08:00
Adam Spiers
f1a7082f2a api-directory-listing.txt: update to match code
7c4c97c0ac turned the flags in struct dir_struct into a single bitfield
variable, but forgot to update this document.

Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-28 12:07:45 -08:00
Junio C Hamano
2b1965863b Merge branch 'ta/api-index-doc' into maint
* ta/api-index-doc:
  Remove misleading date from api-index-skel.txt
2012-12-22 20:37:42 -08:00
Junio C Hamano
df54d59566 Merge branch 'nd/index-format-doc' into maint
* nd/index-format-doc:
  index-format.txt: clarify what is "invalid"
2012-12-22 20:37:09 -08:00
Junio C Hamano
b10c4add03 Merge branch 'ta/new-command-howto'
* ta/new-command-howto:
  Move ./technical/api-command.txt to ./howto/new-command.txt
2012-12-21 15:19:25 -08:00
Junio C Hamano
6600dcbd30 Merge branch 'ta/api-index-doc'
* ta/api-index-doc:
  Remove misleading date from api-index-skel.txt
2012-12-21 15:19:04 -08:00
Junio C Hamano
d34ccd6df7 Merge branch 'nd/index-format-doc'
* nd/index-format-doc:
  index-format.txt: clarify what is "invalid"
2012-12-21 15:18:32 -08:00
Thomas Ackermann
81670e9bfc Move ./technical/api-command.txt to ./howto/new-command.txt
The contents of this document does not describe any particular API, but
is more about the way to add a new command, which belongs to the "How To"
section of the documentation suite.

Signed-off-by: Thomas Ackermann <th.acker@arcor.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-21 10:35:53 -08:00
Thomas Ackermann
a041c9c752 Remove misleading date from api-index-skel.txt
Signed-off-by: Thomas Ackermann <th.acker@arcor.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-16 11:57:41 -08:00
Thomas Ackermann
fef11965da Renumber list in api-command.txt
Start list with 1 instead of 0; ASCIIDOC will renumber it anyway.

Signed-off-by: Thomas Ackermann <th.acker@arcor.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-15 10:46:47 -08:00
Nguyễn Thái Ngọc Duy
4a6385fe55 index-format.txt: clarify what is "invalid"
A cache-tree entry with a negative entry count is considered invalid
by the current Git; it records that we do not know the object name
of a tree that would result by writing the directory covered by the
cache-tree as a tree object.

Clarify that any entry with a negative entry count is invalid, but
the implementations must write -1 there. This way, we can later
decide to allow writers to use negative values other than -1 to
encode optional information on such invalidated entries without
harming interoperability; we do not know what will be encoded and
how, so we keep these other negative values as reserved for now.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-13 10:12:25 -08:00
Eric S. Raymond
29ed5489af Documentation: how to add a new command
This document contains no new policies or proposals; it attempts to
document established practices and interface requirements.

Signed-off-by: Eric S. Raymond <esr@thyrsus.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-11-26 13:43:21 -08:00
Junio C Hamano
dc998a489a Merge branch 'ta/doc-cleanup'
* ta/doc-cleanup:
  Documentation: build html for all files in technical and howto
  Documentation/howto: convert plain text files to asciidoc
  Documentation/technical: convert plain text files to asciidoc
  Change headline of technical/send-pack-pipeline.txt to not confuse its content with content from git-send-pack.txt
  Shorten two over-long lines in git-bisect-lk2009.txt by abbreviating some sha1
  Split over-long synopsis in git-fetch-pack.txt into several lines
2012-11-20 10:32:58 -08:00
Junio C Hamano
6050b5bca0 Merge branch 'mh/notes-string-list'
Improve the asymptotic performance of the cat_sort_uniq notes merge
strategy.

* mh/notes-string-list:
  string_list_add_refs_from_colon_sep(): use string_list_split()
  notes: fix handling of colon-separated values
  combine_notes_cat_sort_uniq(): sort and dedup lines all at once
  Initialize sort_uniq_list using named constant
  string_list: add a function string_list_remove_empty_items()
2012-11-15 10:24:53 -08:00
Michael Haggerty
6bb2a1377b string_list: add a function string_list_remove_empty_items()
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Acked-by: Johan Herland <johan@herland.net>
Signed-off-by: Jeff King <peff@peff.net>
2012-11-08 11:34:08 -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
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
Jeff King
530f237500 Merge branch 'fa/remote-svn'
A GSoC project.

* fa/remote-svn:
  Add a test script for remote-svn
  remote-svn: add marks-file regeneration
  Add a svnrdump-simulator replaying a dump file for testing
  remote-svn: add incremental import
  remote-svn: Activate import/export-marks for fast-import
  Create a note for every imported commit containing svn metadata
  vcs-svn: add fast_export_note to create notes
  Allow reading svn dumps from files via file:// urls
  remote-svn, vcs-svn: Enable fetching to private refs
  When debug==1, start fast-import with "--stats" instead of "--quiet"
  Add documentation for the 'bidi-import' capability of remote-helpers
  Connect fast-import to the remote-helper via pipe, adding 'bidi-import' capability
  Add argv_array_detach and argv_array_free_detached
  Add svndump_init_fd to allow reading dumps from arbitrary FDs
  Add git-remote-testsvn to Makefile
  Implement a remote helper for svn in C
2012-10-25 06:42:02 -04:00
Thomas Ackermann
5316c8e939 Documentation/technical: convert plain text files to asciidoc
These were not originally meant for asciidoc, but they are already
so close.  Mark them up in asciidoc.

Signed-off-by: Thomas Ackermann <th.acker@arcor.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-10-16 16:09:09 -07:00
Thomas Ackermann
368dc5d6ae Change headline of technical/send-pack-pipeline.txt to not confuse its content with content from git-send-pack.txt
Signed-off-by: Thomas Ackermann <th.acker@arcor.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-10-16 16:09:09 -07:00
Florian Achleitner
df7428eca4 Add argv_array_detach and argv_array_free_detached
Allow detaching of ownership of the argv_array's contents and add a
function to free those detached argv_arrays later.

This makes it possible to use argv_array efficiently with the exiting
struct child_process which only contains a member char **argv.

Add to documentation.

Signed-off-by: Florian Achleitner <florian.achleitner.2.6.31@gmail.com>
Acked-by: David Michael Barr <b@rr-dav.id.au>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-10-07 14:10:16 -07:00
Michał Kiedrowicz
656197ad38 graph.c: infinite loop in git whatchanged --graph -m
Running "whatchanged --graph -m" on a simple two-head merges
can fall into infinite loop.

Signed-off-by: Michał Kiedrowicz <michal.kiedrowicz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-25 11:07:15 -07:00
Junio C Hamano
16eed7c993 Merge branch 'mh/fetch-filter-refs'
Finishing touch to update documentation of string-list to make sure
the earlier rewrite of ref-list match logic that depends on its sort
order will not get broken.

* mh/fetch-filter-refs:
  string_list API: document what "sorted" means
2012-09-21 11:17:00 -07:00
Junio C Hamano
06e211acc6 Merge branch 'jc/make-static'
Turn many file-scope private symbols to static to reduce the
global namespace contamination.

* jc/make-static:
  sequencer.c: mark a private file-scope symbol as static
  ident.c: mark private file-scope symbols as static
  trace.c: mark a private file-scope symbol as static
  wt-status.c: mark a private file-scope symbol as static
  read-cache.c: mark a private file-scope symbol as static
  strbuf.c: mark a private file-scope symbol as static
  sha1-array.c: mark a private file-scope symbol as static
  symlinks.c: mark private file-scope symbols as static
  notes.c: mark a private file-scope symbol as static
  rerere.c: mark private file-scope symbols as static
  graph.c: mark private file-scope symbols as static
  diff.c: mark a private file-scope symbol as static
  commit.c: mark a file-scope private symbol as static
  builtin/notes.c: mark file-scope private symbols as static
2012-09-18 14:37:46 -07:00
Junio C Hamano
3c7d50979a Sync with 1.7.12.1 2012-09-18 14:35:03 -07:00
Philip Oakley
01f7d7f19f Doc: Improve shallow depth wording
Avoid confusion in compound sentence about the start of the commit set
and the depth measure. Use two sentences.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-18 13:35:56 -07:00
Michael Haggerty
1959bf6430 string_list API: document what "sorted" means
The recent work on using string_list to represent the list of refs
that matched with the refs on the other side during fetch heavily
depends on the sort order by string_list's implementation, and
changing string_list will break it.  Document that it uses strcmp()
order, at least for now.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-18 11:41:06 -07:00
Junio C Hamano
3b0b6b53d5 Merge branch 'mh/string-list'
* mh/string-list:
  api-string-list.txt: initialize the string_list the easy way
  string_list: add a function string_list_longest_prefix()
  string_list: add a new function, string_list_remove_duplicates()
  string_list: add a new function, filter_string_list()
  string_list: add two new functions for splitting strings
  string_list: add function string_list_append_nodup()
2012-09-17 15:53:31 -07:00
Junio C Hamano
69850be47d sha1-array.c: mark a private file-scope symbol as static
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-15 22:58:21 -07:00
Michael Haggerty
51f3145c28 api-string-list.txt: initialize the string_list the easy way
In the demo code blurb, show how to initialize the string_list using
STRING_LIST_INIT_NODUP rather than memset().

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-12 11:43:25 -07:00
Michael Haggerty
f103f95b11 string_list: add a function string_list_longest_prefix()
Add a function that finds the longest string from a string_list that
is a prefix of a given string.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-12 11:43:25 -07:00
Michael Haggerty
31d5451eed string_list: add a new function, string_list_remove_duplicates()
Add a function that deletes duplicate entries from a sorted
string_list.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-12 11:43:25 -07:00
Michael Haggerty
eb5f0c7a61 string_list: add a new function, filter_string_list()
This function allows entries that don't match a specified criterion to
be discarded from a string_list while preserving the order of the
remaining entries.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-12 11:43:25 -07:00
Michael Haggerty
ff919f965d string_list: add two new functions for splitting strings
Add two new functions, string_list_split() and
string_list_split_in_place().  These split a string into a string_list
on a separator character.  The first makes copies of the substrings
(leaving the input string untouched) and the second splits the
original string in place, overwriting the separator characters with
NULs and referring to the original string's memory.

These functions are similar to the strbuf_split_*() functions except
that they work with the more powerful string_list interface.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-12 11:43:24 -07:00
Michael Haggerty
e448fed8e6 string_list: add function string_list_append_nodup()
Add a new function that appends a string to a string_list without
copying it.  This can be used to pass ownership of an already-copied
string to a string_list that has strdup_strings set.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-12 11:43:24 -07:00
Junio C Hamano
871313c358 Merge branch 'jk/argv-array'
Use argv-array API in "git fetch" implementation.

* jk/argv-array:
  submodule: use argv_array instead of hand-building arrays
  fetch: use argv_array instead of hand-building arrays
  argv-array: fix bogus cast when freeing array
  argv-array: add pop function
2012-09-11 11:36:18 -07:00
Jeff King
fe4a0a2888 argv-array: add pop function
Sometimes we build a set of similar command lines, differing
only in the final arguments (e.g., "fetch --multiple"). To
use argv_array for this, you have to either push the same
set of elements repeatedly, or break the abstraction by
manually manipulating the array's internal members.

Instead, let's provide a sanctioned "pop" function to remove
elements from the end.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-02 21:10:01 -07:00
Javier Roucher Iglesias
e30b2feb1b add 'git credential' plumbing command
The credential API is in C, and not available to scripting languages.
Expose the functionalities of the API by wrapping them into a new
plumbing command "git credentials".

In other words, replace the internal "test-credential" by an official Git
command.

Most documentation writen by: Jeff King <peff@peff.net>
Signed-off-by: Pavel Volek <Pavel.Volek@ensimag.imag.fr>
Signed-off-by: Kim Thuat Nguyen <Kim-Thuat.Nguyen@ensimag.imag.fr>
Signed-off-by: Javier Roucher Iglesias <Javier.Roucher-Iglesias@ensimag.imag.fr>
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-25 11:55:51 -07:00
Junio C Hamano
73a6e3c794 Merge branch 'mm/api-credentials-doc'
* mm/api-credentials-doc:
  api-credential.txt: document that helpers field is filled-in automatically
2012-06-12 08:40:16 -07:00
Matthieu Moy
317d74be69 api-credential.txt: document that helpers field is filled-in automatically
It was unclear whether the field was to be specified by the user of the
API.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-12 07:48:40 -07:00
Junio C Hamano
02101c969d Merge branch 'mm/api-credentials-doc'
Finishing touches...

* mm/api-credentials-doc:
  docs: fix cross-directory linkgit references
2012-06-08 08:32:20 -07:00
Jeff King
fe77b416c7 docs: fix cross-directory linkgit references
Most of our documentation is in a single directory, so using
linkgit:git-config[1] just generates a relative link in the
same directory. However, this is not the case with the API
documentation in technical/*, which need to refer to
git-config from the parent directory.

We can fix this by passing a special prefix attribute when building
in a subdirectory, and respecting that prefix in our linkgit
definitions.

We only have to modify the html linkgit definition.  For
manpages, we can ignore this for two reasons:

  1. we do not generate actual links to the file in
     manpages, but instead just give the name and section of
     the linked manpage

  2. we do not currently build manpages for subdirectories,
     only html

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-08 08:31:52 -07:00
Junio C Hamano
dd3d071182 Merge branch 'mm/api-credentials-doc'
* mm/api-credentials-doc:
  api-credentials.txt: add "see also" section
  api-credentials.txt: mention credential.helper explicitly
  api-credentials.txt: show the big picture first
  doc: fix xref link from api docs to manual pages
2012-06-07 09:07:35 -07:00
Matthieu Moy
04ab6ae776 api-credentials.txt: add "see also" section
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-04 13:49:50 -07:00
Matthieu Moy
365fc8d56a api-credentials.txt: mention credential.helper explicitly
The name of the configuration variable was mentioned only at the very
end of the explanation, in a place specific to a specific rule, hence it
was not very clear what the specification was about.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-04 13:49:44 -07:00
Matthieu Moy
2239888089 api-credentials.txt: show the big picture first
The API documentation targets two kinds of developers: those using the
C API, and those writing remote-helpers. The document was not clear
about which part was useful to which category, and for example, the C API
could be mistakenly thought as an API for writting remote helpers.

Based-on-patch-by: Jeff King <peff@peff.net>
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-04 13:47:32 -07:00
Junio C Hamano
dd4287a2c9 doc: fix xref link from api docs to manual pages
They are one-level above, so refer them as linkgit:../git-foo[n] with "../"

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-04 13:46:53 -07:00
Junio C Hamano
3f8acaae8a Sync with maint 2012-05-14 11:50:20 -07:00
Junio C Hamano
badabc06f3 Merge branch 'jk/doc-asciidoc-inline-literal' into maint
By Jeff King
* jk/doc-asciidoc-inline-literal:
  docs: stop using asciidoc no-inline-literal
2012-05-14 11:43:04 -07:00
Carlos Martín Nieto
79135e4c22 pack-protocol: fix first-want separator in the examples
When sending the "want" list, the capabilities list is separated from
the obj-id by a SP instead of NUL as in the ref advertisement. The
text is correct, but the examples wrongly show the separator as
NUL. Fix the example so it uses SP.

Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-05-14 09:24:52 -07:00
Junio C Hamano
d274fc093c Merge branch 'jk/doc-asciidoc-inline-literal'
Our documentation was written for an ancient version of AsciiDoc,
making the source not very readable.

By Jeff King
* jk/doc-asciidoc-inline-literal:
  docs: stop using asciidoc no-inline-literal
2012-05-02 13:51:45 -07:00
Junio C Hamano
d4a5d872c0 Merge branch 'jc/index-v4'
Trivially shrinks the on-disk size of the index file to save both I/O and
checksum overhead.

The topic should give a solid base to build on further updates, with the
code refactoring in its earlier parts, and the backward compatibility
mechanism in its later parts.

* jc/index-v4:
  index-v4: document the entry format
  unpack-trees: preserve the index file version of original
  update-index: upgrade/downgrade on-disk index version
  read-cache.c: write prefix-compressed names in the index
  read-cache.c: read prefix-compressed names in index on-disk version v4
  read-cache.c: move code to copy incore to ondisk cache to a helper function
  read-cache.c: move code to copy ondisk to incore cache to a helper function
  read-cache.c: report the header version we do not understand
  read-cache.c: make create_from_disk() report number of bytes it consumed
  read-cache.c: allow unaligned mapping of the index file
  cache.h: hide on-disk index details
  varint: make it available outside the context of pack
2012-05-02 13:51:13 -07:00
Junio C Hamano
9e234af281 Merge branch 'jk/repack-no-explode-objects-from-old-pack'
Avoid writing out unreachable objects as loose objects when repacking,
if such loose objects will immediately pruned due to its age anyway.

By Jeff King
* jk/repack-no-explode-objects-from-old-pack:
  gc: use argv-array for sub-commands
  argv-array: add a new "pushl" method
  argv-array: refactor empty_argv initialization
  gc: do not explode objects which will be immediately pruned
2012-04-29 17:50:27 -07:00
Junio C Hamano
afd7bd2220 index-v4: document the entry format
Document the format so that others can learn from and build on top of
the series.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-27 16:03:31 -07:00
Jeff King
6cf378f0cb docs: stop using asciidoc no-inline-literal
In asciidoc 7, backticks like `foo` produced a typographic
effect, but did not otherwise affect the syntax. In asciidoc
8, backticks introduce an "inline literal" inside which markup
is not interpreted. To keep compatibility with existing
documents, asciidoc 8 has a "no-inline-literal" attribute to
keep the old behavior. We enabled this so that the
documentation could be built on either version.

It has been several years now, and asciidoc 7 is no longer
in wide use. We can now decide whether or not we want
inline literals on their own merits, which are:

  1. The source is much easier to read when the literal
     contains punctuation. You can use `master~1` instead
     of `master{tilde}1`.

  2. They are less error-prone. Because of point (1), we
     tend to make mistakes and forget the extra layer of
     quoting.

This patch removes the no-inline-literal attribute from the
Makefile and converts every use of backticks in the
documentation to an inline literal (they must be cleaned up,
or the example above would literally show "{tilde}" in the
output).

Problematic sites were found by grepping for '`.*[{\\]' and
examined and fixed manually. The results were then verified
by comparing the output of "html2text" on the set of
generated html pages. Doing so revealed that in addition to
making the source more readable, this patch fixes several
formatting bugs:

  - HTML rendering used the ellipsis character instead of
    literal "..." in code examples (like "git log A...B")

  - some code examples used the right-arrow character
    instead of '->' because they failed to quote

  - api-config.txt did not quote tilde, and the resulting
    HTML contained a bogus snippet like:

      <tt><sub></tt> foo <tt></sub>bar</tt>

    which caused some parsers to choke and omit whole
    sections of the page.

  - git-commit.txt confused ``foo`` (backticks inside a
    literal) with ``foo'' (matched double-quotes)

  - mentions of `A U Thor <author@example.com>` used to
    erroneously auto-generate a mailto footnote for
    author@example.com

  - the description of --word-diff=plain incorrectly showed
    the output as "[-removed-] and {added}", not "{+added+}".

  - using "prime" notation like:

      commit `C` and its replacement `C'`

    confused asciidoc into thinking that everything between
    the first backtick and the final apostrophe were meant
    to be inside matched quotes

  - asciidoc got confused by the escaping of some of our
    asterisks. In particular,

      `credential.\*` and `credential.<url>.\*`

    properly escaped the asterisk in the first case, but
    literally passed through the backslash in the second
    case.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-26 13:19:06 -07:00
Junio C Hamano
419f2ecf78 Merge branch 'hv/submodule-recurse-push'
"git push --recurse-submodules" learns to optionally look into the
histories of submodules bound to the superproject and push them out.

By Heiko Voigt
* hv/submodule-recurse-push:
  push: teach --recurse-submodules the on-demand option
  Refactor submodule push check to use string list instead of integer
  Teach revision walking machinery to walk multiple times sequencially
2012-04-24 14:40:20 -07:00
Jeff King
d15bbe1379 argv-array: add a new "pushl" method
It can be convenient to push many strings in a single line
(e.g., if you are initializing an array with defaults). This
patch provides a convenience wrapper to allow this.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-18 16:16:38 -07:00
Junio C Hamano
19a6cd372a Merge branch 'maint'
* maint:
  string-list: document that string_list_insert() inserts unique strings
2012-03-30 20:25:55 -07:00
Heiko Voigt
b8939b2b3a string-list: document that string_list_insert() inserts unique strings
Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-03-30 09:06:04 -07:00
Heiko Voigt
bcc0a3ea38 Teach revision walking machinery to walk multiple times sequencially
Previously it was not possible to iterate revisions twice using the
revision walking api. We add a reset_revision_walk() which clears the
used flags. This allows us to do multiple sequencial revision walks.

We add the appropriate calls to the existing submodule machinery doing
revision walks. This is done to avoid surprises if future code wants to
call these functions more than once during the processes lifetime.

Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-03-30 08:57:49 -07:00
Junio C Hamano
26f1e9bd68 Merge branch 'tr/maint-bundle-long-subject' into maint
* tr/maint-bundle-long-subject:
  t5704: match tests to modern style
  strbuf: improve strbuf_get*line documentation
  bundle: use a strbuf to scan the log for boundary commits
  bundle: put strbuf_readline_fd in strbuf.c with adjustments
2012-03-04 22:16:30 -08:00
Junio C Hamano
66b8800e53 Merge branch 'rs/no-no-no-parseopt'
* rs/no-no-no-parseopt:
  parse-options: remove PARSE_OPT_NEGHELP
  parse-options: allow positivation of options starting, with no-
  test-parse-options: convert to OPT_BOOL()

Conflicts:
	builtin/grep.c
2012-03-01 20:59:31 -08:00
Junio C Hamano
ac1373f1c2 Merge branch 'tr/maint-bundle-long-subject'
* tr/maint-bundle-long-subject:
  t5704: match tests to modern style
  strbuf: improve strbuf_get*line documentation
  bundle: use a strbuf to scan the log for boundary commits
  bundle: put strbuf_readline_fd in strbuf.c with adjustments
2012-02-26 23:05:51 -08:00