As a short option, we cannot handle negation. Thus a callback
handling "unset" is overkill, and we can just use OPT_SET_INT
instead to handle setting the option.

Anybody who adds "--nul" synonym to this later would need to be
careful not to break "--no-nul", which should mean that lines are
terminated with LF at the end.
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

We do not really expect people to use "--no-stage", but if
they do, git currently segfaults. We could instead have it
undo the effects of a previous "--stage", but this gets
tricky around the "to_tempfile" flag. We cannot simply reset
it to 0, because we don't know if it was set by a previous
"--stage=all" or an explicit "--temp" option.

We could solve this by setting a flag and resolving
to_tempfile later, but it's not worth the effort. Nobody
actually wants to use "--no-stage"; we are just trying to
fix a potential segfault here.

While we're in the area, let's improve the user-facing
messages for this option. The error string should be
translatable, and we should give some hint in the "-h"
output about what can go in the argument field.
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

The parsing of "--index" is done in a callback, but it does
not handle an "unset" option. We don't necessarily expect
anyone to use this, but the current behavior is to treat it
exactly like "--index", which would probably be surprising.

Instead, let's just turn it into an OPT_BOOL, and handle it
after we're done parsing. This makes "--no-index" just work
(it cancels a previous "--index").

As a bonus, this makes the logic easier to follow. The old
code opened the index during the option parsing, leaving the
reader to wonder if there was some timing issue (there
isn't; none of the other options care that we've opened it).
And then if we found that "--prefix" had been given, we had
to rollback the index. Now we can simply avoid opening it in
the first place.

Note that it might make more sense for checkout-index to
complain when "--index --prefix=foo" is given (rather than
silently ignoring "--index"), but since it has been that way
since 415e96c8 ([PATCH] Implement git-checkout-cache -u to
update stat information in the cache., 2005-05-15), it's
safer to leave it as-is.
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

We use a custom callback to parse "--prefix", but it does
not handle the "unset" case. As a result, passing
"--no-prefix" will cause a segfault.

We can fix this by switching it to an OPT_STRING, which
makes "--no-prefix" counteract a previous "--prefix". Note
that this assigns NULL, so we bump our default-case
initialization to lower in the main function.
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Now that we act as a simple bool, there's no need to use a
custom callback.
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

It's a common pattern in our code to read paths from stdin,
separated either by newlines or NULs, and unquote as
necessary. In each of these five cases we use "nbuf" to
temporarily store the unquoted value. Let's give it the more
meaningful name "unquoted", which makes it easier to
understand the purpose of the variable.

While we're at it, let's also static-initialize all of our
strbufs. It's not wrong to call strbuf_init, but it
increases the cognitive load on the reader, who might wonder
"do we sometimes avoid initializing them?  why?".
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Now there is no direct caller to strbuf_getline(), we can demote it
to file-scope static that is private to strbuf.c and rename it to
strbuf_getdelim().  Rename strbuf_getline_crlf(), which is designed
to be the most "text friendly" variant, and allow it to take over
this simplest name, strbuf_getline(), so we can add more uses of it
without having to type _crlf over and over again in the coming
steps.
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

The program by default reads LF terminated lines, with an option to
use NUL terminated records.  Instead of pretending that there can be
other useful values for line_termination, use a boolean variable,
nul_term_line, to tell if NUL terminated records are used, and
switch between strbuf_getline_{lf,nul} based on it.
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

The program by default reads LF terminated lines, with an option to
use NUL terminated records.  Instead of pretending that there can be
other useful values for line_termination, use a boolean variable,
nul_term_line, to tell if NUL terminated records are used, and
switch between strbuf_getline_{lf,nul} based on it.
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

The program by default reads LF terminated lines, with an option to
use NUL terminated records.  Instead of pretending that there can be
other useful values for line_termination, use a boolean variable,
nul_term_line, to tell if NUL terminated records are used, and
switch between strbuf_getline_{lf,nul} based on it.
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

The program by default reads LF terminated lines, with an option to
use NUL terminated records.  Instead of pretending that there can be
other useful values for line_termination, use a boolean variable,
nul_term_line, to tell if NUL terminated records are used, and
switch between strbuf_getline_{lf,nul} based on it.
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

The program by default reads LF terminated lines, with an option to
use NUL terminated records.  Instead of pretending that there can be
other useful values for line_termination, use a boolean variable,
nul_term_line, to tell if NUL terminated records are used, and
switch between strbuf_getline_{lf,nul} based on it.
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

The strbuf_getline() interface allows a byte other than LF or NUL as
the line terminator, but this is only because I wrote these
codepaths anticipating that there might be a value other than NUL
and LF that could be useful when I introduced line_termination long
time ago.  No useful caller that uses other value has emerged.

By now, it is clear that the interface is overly broad without a
good reason.  Many codepaths have hardcoded preference to read
either LF terminated or NUL terminated records from their input, and
then call strbuf_getline() with LF or NUL as the third parameter.

This step introduces two thin wrappers around strbuf_getline(),
namely, strbuf_getline_lf() and strbuf_getline_nul(), and
mechanically rewrites these call sites to call either one of
them.  The changes contained in this patch are:

 * introduction of these two functions in strbuf.[ch]

 * mechanical conversion of all callers to strbuf_getline() with
   either '\n' or '\0' as the third parameter to instead call the
   respective thin wrapper.

After this step, output from "git grep 'strbuf_getline('" would
become a lot smaller.  An interim goal of this series is to make
this an empty set, so that we can have strbuf_getline_crlf() take
over the shorter name strbuf_getline().
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Often we read "text" files that are supplied by the end user
(e.g. commit log message that was edited with $GIT_EDITOR upon 'git
commit -e'), and in some environments lines in a text file are
terminated with CRLF.  Existing strbuf_getline() knows to read a
single line and then strip the terminating byte from the result, but
it is handy to have a version that is more tailored for a "text"
input that takes both '\n' and '\r\n' as line terminator (aka
<newline> in POSIX lingo) and returns the body of the line after
stripping <newline>.

Recently reimplemented "git am" uses such a function implemented
privately; move it to strbuf.[ch] and make it available for others.

Note that we do not blindly replace calls to strbuf_getline() that
uses LF as the line terminator with calls to strbuf_getline_crlf()
and this is very much deliberate.  Some callers may want to treat an
incoming line that ends with CR (and terminated with LF) to have a
payload that includes the final CR, and such a blind replacement
will result in misconversion when done without code audit.
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

We write one SP on each side of an operator, even inside an [] pair
that computes the array index.
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

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

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

History traversal with "git log --source" that starts with an
annotated tag failed to report the tag as "source", due to an
old regression in the command line parser back in v2.2 days.

* jk/pending-keep-tag-name:
  revision.c: propagate tag names from pending array

"git symbolic-ref" forgot to report a failure with its exit status.

* jk/symbolic-ref-maint:
  t1401: test reflog creation for git-symbolic-ref
  symbolic-ref: propagate error code from create_symref()

When getpwuid() on the system returned NULL (e.g. the user is not
in the /etc/passwd file or other uid-to-name mappings), the
codepath to find who the user is to record it in the reflog barfed
and died.  Loosen the check in this codepath, which already accepts
questionable ident string (e.g. host part of the e-mail address is
obviously bogus), and in general when we operate fmt_ident() function
in non-strict mode.

* jk/ident-loosen-getpwuid:
  ident: loosen getpwuid error in non-strict mode
  ident: keep a flag for bogus default_email
  ident: make xgetpwuid_self() a static local helper

Improve error reporting when SMTP TLS fails.

* jk/send-email-ssl-errors:
  send-email: enable SSL level 1 debug output

The completion script (in contrib/) used to list "git column"
(which is not an end-user facing command) as one of the choices

* sg/completion-no-column:
  completion: remove 'git column' from porcelain commands

l10n-2.7.0-rnd2+de

* tag 'l10n-2.7.0-rnd2+de' of git://github.com/git-l10n/git-po:
  l10n: de.po: translate 68 new messages
  l10n: de.po: improve some translations

Translate 68 new messages came from git.pot update in
f4f2c8f8 (l10n: git.pot: v2.7.0 round 1 (66 new, 29 removed)) and
2c0ca050 (l10n: git.pot: v2.7.0 round 2 (2 new, 2 removed)).
Signed-off-by: NRalf Thielow <ralf.thielow@gmail.com>
Acked-by: NMatthias Rüster <matthias.ruester@gmail.com>

Signed-off-by: NRalf Thielow <ralf.thielow@gmail.com>
Acked-by: NPhillip Sz <phillip.szelat@gmail.com>

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

"git p4" when interacting with multiple depots at the same time
used to incorrectly drop changes.

* sh/p4-multi-depot:
  git-p4: reduce number of server queries for fetches
  git-p4: support multiple depot paths in p4 submit
  git-p4: failing test case for skipping changes with multiple depots

History traversal with "git log --source" that starts with an
annotated tag failed to report the tag as "source", due to an
old regression in the command line parser back in v2.2 days.

* jk/pending-keep-tag-name:
  revision.c: propagate tag names from pending array

"git symbolic-ref" forgot to report a failure with its exit status.

* jk/symbolic-ref-maint:
  t1401: test reflog creation for git-symbolic-ref
  symbolic-ref: propagate error code from create_symref()

l10n-2.7.0-rnd2

* tag 'l10n-2.7.0-rnd2' of git://github.com/git-l10n/git-po:
  l10n: ru.po: update Russian translation
  l10n: Updated Bulgarian translation of git (2477t,0f,0u)
  l10n: ca.po: update translation
  l10n: zh_CN: for git v2.7.0 l10n round 2
  l10n: sv.po: Update Swedish translation (2477t0f0u)
  l10n: sv: Fix bad translation
  l10n: fr.po v2.7.0 round 2 (2477t)
  l10n: git.pot: v2.7.0 round 2 (2 new, 2 removed)
  l10n: zh_CN: for git v2.7.0 l10n round 1
  l10n: ca.po: update translation
  l10n: fr v2.7.0 round 1 (2477t)
  l10n: Updated Bulgarian translation of git (2477t,0f,0u)
  l10n: sv.po: Update Swedish translation (2477t0f0u)
  l10n: vi.po: Updated translation (2477t)
  l10n: git.pot: v2.7.0 round 1 (66 new, 29 removed)
  l10n: fr.po: Fix typo
  l10n: fr.po: Fix typo

Signed-off-by: NDimitriy Ryazantcev <dimitriy.ryazantcev@gmail.com>

* 'master' of git://github.com/alshopov/git-po:
  l10n: Updated Bulgarian translation of git (2477t,0f,0u)

Signed-off-by: NAlexander Shopov <ash@kambanaria.org>

Signed-off-by: NAlex Henrie <alexhenrie24@gmail.com>

Update 2 translations (2477t0f0u) for git v2.7.0-rc1.
Signed-off-by: NJiang Xin <worldhello.net@gmail.com>

* 'master' of git://github.com/nafmo/git-l10n-sv:
  l10n: sv.po: Update Swedish translation (2477t0f0u)
  l10n: sv: Fix bad translation

Signed-off-by: NPeter Krefting <peter@softwolves.pp.se>

Found-by: NSebastian Rasmussen <sebras@gmail.com>
Signed-off-by: NPeter Krefting <peter@softwolves.pp.se>

Signed-off-by: NJean-Noel Avila <jn.avila@free.fr>