The strbuf_split function takes a strbuf as input, and
outputs a list of strbufs. However, there is no reason that
the input has to be a strbuf, and not an arbitrary buffer.

This patch adds strbuf_split_buf for a length-delimited
buffer, and strbuf_split_str for NUL-terminated strings.
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

We already check for an empty key on the left side of an
equals, but we would segfault if there was no content at
all.
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

The error handling for git_config is somewhat confusing. We
collect errors from running git_config_from_file on the
various config files and carefully pass them back up. But
the two odd things are:

  1. We actually die on most errors in git_config_from_file.
     In fact, the only error we actually pass back up is if
     fopen() fails on the file.

  2. Most callers of git_config do not check the error
     return at all, but will continue if git_config reports
     an error.

When the code for "git -c core.foo=bar" was added, it
dutifully passed errors up the call stack, only for them to
be eventually ignored. This makes it inconsistent with the
file-parsing code, which will die when it sees malformed
config. And it's somewhat unsafe, because it means an error
in parsing a typo like:

  git -c clean.requireforce=ture clean

will continue the command, ignoring the config the user
tried to give.
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

If you do something like:

  git -c core.foo="value with = in it" ...

we would split your option on "=" into three fields and
throw away the third one. With this patch we correctly take
everything after the first "=" as the value (keys cannot
have an equals sign in them, so the parsing is unambiguous).
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Sometimes when splitting, you only want a limited number of
fields, and for the final field to contain "everything
else", even if it includes the delimiter.

This patch introduces strbuf_split_max, which provides a
"max number of fields" parameter; it behaves similarly to
perl's "split" with a 3rd field.

The existing 2-argument form of strbuf_split is retained for
compatibility and ease-of-use.
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

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

* 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

* jc/fmt-req-fix:
  userformat_find_requirements(): find requirement for the correct format

* jk/maint-docs:
  docs: fix some antique example output
  docs: make sure literal "->" isn't converted to arrow
  docs: update status --porcelain format
  docs: minor grammar fixes to git-status

* jn/doc-remote-helpers:
  Documentation: do not misinterpret refspecs as bold text

* kk/maint-prefix-in-config-mak:
  config.mak.in: allow "configure --sysconfdir=/else/where"

Since 9d8a5a50 (diffcore-rename: refactor "too many candidates" logic,
2011-01-06), diffcore_rename() initializes num_src but does not use it
anymore.  "-Wunused-but-set-variable" in gcc-4.6 complains about this.
Signed-off-by: NJim Meyering <meyering@redhat.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

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

* tr/add-i-no-escape:
  add -i: ignore terminal escape sequences

* vh/config-interactive-singlekey-doc:
  git-reset.txt: better docs for '--patch'
  git-checkout.txt: better docs for '--patch'
  git-stash.txt: better docs for '--patch'
  git-add.txt: document 'interactive.singlekey'
  config.txt: 'interactive.singlekey; is used by...

* ml/test-readme:
  t/README: unify documentation of test function args

* ab/i18n-fixup: (24 commits)
  i18n: use test_i18n{cmp,grep} in t7600, t7607, t7611 and t7811
  i18n: use test_i18n{grep,cmp} in t7508
  i18n: use test_i18ngrep in t7506
  i18n: use test_i18ngrep and test_i18ncmp in t7502
  i18n: use test_i18ngrep in t7501
  i18n: use test_i18ncmp in t7500
  i18n: use test_i18ngrep in t7201
  i18n: use test_i18ncmp and test_i18ngrep in t7102 and t7110
  i18n: use test_i18ncmp and test_i18ngrep in t5541, t6040, t6120, t7004, t7012 and t7060
  i18n: use test_i18ncmp and test_i18ngrep in t3700, t4001 and t4014
  i18n: use test_i18ncmp and test_i18ngrep in t3203, t3501 and t3507
  i18n: use test_i18ngrep in t2020, t2204, t3030, and t3200
  i18n: use test_i18ngrep in lib-httpd and t2019
  i18n: do not overuse C_LOCALE_OUTPUT (grep)
  i18n: use test_i18ncmp in t1200 and t2200
  i18n: .git file is not a human readable message (t5601)
  i18n: do not overuse C_LOCALE_OUTPUT
  i18n: mark init-db messages for translation
  i18n: mark checkout plural warning for translation
  i18n: mark checkout --detach messages for translation
  ...

* jc/rename-degrade-cc-to-c:
  diffcore-rename: fall back to -C when -C -C busts the rename limit
  diffcore-rename: record filepair for rename src
  diffcore-rename: refactor "too many candidates" logic
  builtin/diff.c: remove duplicated call to diff_result_code()

* rr/doc-content-type:
  Documentation: Allow custom diff tools to be specified in 'diff.tool'
  Documentation: Add diff.<driver>.* to config
  Documentation: Move diff.<driver>.* from config.txt to diff-config.txt
  Documentation: Add filter.<driver>.* to config

In v1.7.3.3~2 (Documentation: do not misinterpret pull refspec as bold
text, 2010-12-03) many uses of asterisks in expressions like
"refs/heads/*:refs/svn/origin/branches/*" were escaped as {asterisk}
to avoid being treated as delimiters for bold text, but these two were
missed.
Signed-off-by: NJonathan Nieder <jrnieder@gmail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

* jm/maint-misc-fix:
  read_gitfile_gently: use ssize_t to hold read result
  remove tests of always-false condition
  rerere.c: diagnose a corrupt MERGE_RR when hitting EOF between TAB and '\0'

* bc/maint-submodule-fix-parked:
  git-submodule.sh: separate parens by a space to avoid confusing some shells

* bc/maint-api-doc-parked:
  Documentation/technical/api-diff.txt: correct name of diff_unmerge()

* jn/run-command-error-failure:
  run-command: handle short writes and EINTR in die_child
  tests: check error message from run_command

We do allow vanilla Makefile users to say make sysconfdir=/else/where
and config.mak can also be tweaked manually for the same effect. Give
the same configurablity to ./configure users as well.
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

These diff-index and diff-tree sample outputs date back to
the first month of git's existence. The output format has
changed slightly since then, so let's have it match the
current output.
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Recent versions of asciidoc will treat "->" as a
single-glyph arrow symbol, unless it is inside a literal
code block. This is a problem if we are discussing literal
output and want to show the ASCII characters.

Our usage falls into three categories:

  1. Inside a code block. These can be left as-is.

  2. Discussing literal output or code, but inside a
     paragraph. This patch escapes these as "\->".

  3. Using the arrow as a symbolic element, such as "use the
     Edit->Account Settings menu". In this case, the
     arrow symbol is preferable, so we leave it as-is.
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

The --porcelain format was originally identical to the
--short format, but designed to be stable as the short
format changed. Since this was written, the short format
picked up a few incompatible niceties, but this description
was never changed.

Let's mention the differences. While we're at it, let's add
some sub-section headings to make the "output" section a
little easier to navigate.
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Some shells interpret '(( ))' according to the rules for arithmetic
expansion.  This may not follow POSIX, but is prevalent in commonly used
shells.  Bash does not have a problem with this particular instance of
'((', likely because it is not followed by a '))', but the public domain
ksh does, and so does ksh on IRIX 6.5.

So, add a space between the parenthesis to avoid confusing these shells.
Signed-off-by: NBrandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Signed-off-by: NBrandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Otherwise, a negative error return becomes a very large read
value. We catch this in practice because we compare the
expected and actual numbers of bytes (and you are not likely
to be reading (size_t)-1 bytes), but this makes the
correctness a little more obvious.
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

* fsck.c (fsck_error_function): Don't test obj->sha1 == 0.
It can never be true, since that sha1 member is an array.
* transport.c (set_upstreams): Likewise for ref->new_sha1.
Signed-off-by: NJim Meyering <meyering@redhat.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

If we reach EOF after the SHA1-then-TAB, yet before the NUL that
terminates each file name, we would fill the file name buffer with \255
bytes resulting from the repeatedly-failing fgetc (returns EOF/-1) and
ultimately complain about "filename too long", because no NUL was
encountered.
Signed-off-by: NJim Meyering <jim@meyering.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

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

* 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

* js/maint-send-pack-stateless-rpc-deadlock-fix:
  sideband_demux(): fix decl-after-stmt
  send-pack: unbreak push over stateless rpc
  send-pack: avoid deadlock when pack-object dies early

* jk/maint-upload-pack-shallow:
  upload-pack: start pack-objects before async rev-list

* jm/maint-diff-words-with-sbe:
  do not read beyond end of malloc'd buffer