builtin.h: remove unused cmd_<foo> declarations

These were left in builtin.h after they were converted into
stand-alone programs or removed after experiments finished.

Signed-off-by: Luka Perkov <lists@lukaperkov.net>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
commit: check committer identity more strictly

The identity of the committer will ultimately be pulled from
the ident code by commit_tree(). However, we make an attempt
to check the author and committer identity early, before the
user has done any manual work like inputting a commit
message. That lets us abort without them having to worry
about salvaging the work from .git/COMMIT_EDITMSG.

The early check for committer ident does not use the
IDENT_STRICT flag, meaning that it would not find an empty
name field. The motivation was presumably because we did not
want to be too restrictive, as later calls might be more lax
(for example, when we create the reflog entry, we do not
care too much about a real name). However, because
commit_tree will always get a strict identity to put in the
commit object itself, there is no point in being lax only to
die later (and in fact it is harmful, because the user will
have wasted time typing their commit message).

Incidentally, this bug was masked prior to 060d4bb, as the
initial loose call would taint the later strict call. So the
commit would succeed (albeit with a bogus committer line in
the commit object), and nobody noticed that our early check
did not match the later one.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
tests: Introduce test_seq

Jeff King wrote:

	The seq command is GNU-ism, and is missing at least in older BSD
	releases and their derivatives, not to mention antique
	commercial Unixes.

	We already purged it in b3431bc (Don't use seq in tests, not
	everyone has it, 2007-05-02), but a few new instances have crept
	in. They went unnoticed because they are in scripts that are not
	run by default.

Replace them with test_seq that is implemented with a Perl snippet
(proposed by Jeff).  This is better than inlining this snippet
everywhere it's needed because it's easier to read and it's easier
to change the implementation (e.g. to C) if we ever decide to remove
Perl from the test suite.

Note that test_seq is not a complete replacement for seq(1).  It
just has what we need now, in addition that it makes it possible for
us to do something like "test_seq a m" if we wanted to in the
future.

There are also many places that do `for i in 1 2 3 ...` but I'm not sure
if it's worth converting them to test_seq.  That would introduce running
more processes of Perl.

Signed-off-by: Michał Kiedrowicz <michal.kiedrowicz@gmail.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Documentation: do not mention .git/refs/* directories

It is an implementation detail that a new tag is created by adding a
file in the .git/refs/tags directory.  The only thing the user needs
to know is that a "git tag" creates a ref in the refs/tags namespace,
and without "-f", it does not overwrite an existing tag.

Inspired by a report from 乙酸鋰 <ch3cooli@gmail.com>; I think I
caught all the existing mention in Documentation/ directory in the
tip of 1.7.9.X maintenance track, but we may have added new ones
since then.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
terminal: seek when switching between reading and writing

When a stdio stream is opened in update mode (e.g., "w+"),
the C standard forbids switching between reading or writing
without an intervening positioning function. Many
implementations are lenient about this, but Solaris libc
will flush the recently-read contents to the output buffer.
In this instance, that meant writing the non-echoed password
that the user just typed to the terminal.

Fix it by inserting a no-op fseek between the read and
write.

The opposite direction (writing followed by reading) is also
disallowed, but our intervening fflush is an acceptable
positioning function for that alternative.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Enable HAVE_DEV_TTY for Solaris

Now that git_terminal_prompt can cleanly interact with /dev/tty on
Solaris, enable HAVE_DEV_TTY so that this code path is used for
credential reading instead of relying on the crippled getpass().

Signed-off-by: Ben Walton <bwalton@artsci.utoronto.ca>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Documentation/CodingGuidelines: spell out more shell guidelines

In earlier days, "imitate the style in the neibouring code" was
sufficient to keep the coherent style, but over time some parts of
the codebase have drifted enough to make it ineffective.

Spell some of the guidelines out.

Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
rev-list docs: clarify --topo-order description

It was unclear what "--topo-order" was really about in the
documentation.  It is not just about "children before parent", but
also about "don't mix lineages".

Reword the description for both "--date-order" and "--topo-order",
and add an illustration to it.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
gitcli: describe abbreviation of long options

Signed-off-by: Junio C Hamano <gitster@pobox.com>
man: git pull -r is a short for --rebase

Letting the "--rebase" option squat on the short-and-sweet single
letter option "-r" was an unintended accident and was not even
documented, but the short option seems to be already used in the
wild. Let's document it so that other options that begin with "r"
would not be tempted to steal it.

Signed-off-by: Miklos Vajna <vmiklos@suse.cz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Merge branch 'jk/maint-commit-check-committer-early' into maint-1.7.11

* jk/maint-commit-check-committer-early:
  commit: check committer identity more strictly
Merge branch 'bw/maint-1.7.9-solaris-getpass' into maint-1.7.11

* bw/maint-1.7.9-solaris-getpass:
  Enable HAVE_DEV_TTY for Solaris
  terminal: seek when switching between reading and writing
Merge branch 'lp/no-cmd-http-fetch' into maint-1.7.11

* lp/no-cmd-http-fetch:
  builtin.h: remove unused cmd_<foo> declarations
Merge branch 'mk/test-seq' into maint-1.7.11

Add a compatibility/utility function to the test framework.

* mk/test-seq:
  tests: Introduce test_seq
Merge branch 'jc/tag-doc' into maint-1.7.11

Our documentation used to assume having files in .git/refs/*
directories was the only to have branches and tags, but that is not
true for quite some time.

* jc/tag-doc:
  Documentation: do not mention .git/refs/* directories
Merge branch 'hv/coding-guidelines' into maint-1.7.11

In earlier days, "imitate the style in the neibouring code" was
sufficient to keep the coherent style, but over time some parts of
the codebase have drifted enough to make it ineffective.

* hv/coding-guidelines:
  Documentation/CodingGuidelines: spell out more shell guidelines
Merge branch 'jc/maint-rev-list-topo-doc' into maint-1.7.11

It was unclear what "--topo-order" was really about in the
documentation. It is not just about "children before parent", but
also about "don't mix lineages".

* jc/maint-rev-list-topo-doc:
  rev-list docs: clarify --topo-order description
Merge branch 'jc/maint-abbrev-option-cli' into maint-1.7.11

We did not document that many commands take unique prefix
abbreviations of long options (e.g. "--option" may be the only flag
that the command accepts that begin with "--opt", in which case you
can give "--opt") anywhere easy to find for new people.

* jc/maint-abbrev-option-cli:
  gitcli: describe abbreviation of long options
Merge branch 'mv/pull-r-for-rebase' into maint-1.7.11

A minor documentation update.

* mv/pull-r-for-rebase:
  man: git pull -r is a short for --rebase
Prepare for 1.7.11.6

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