2007-09-11 05:02:45 +02:00
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#include "cache.h"
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2009-11-09 16:05:00 +01:00
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#include "exec_cmd.h"
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2010-03-02 11:49:29 +01:00
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#include "http.h"
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2007-09-11 05:02:45 +02:00
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#include "walker.h"
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2009-11-09 16:04:59 +01:00
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static const char http_fetch_usage[] = "git http-fetch "
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"[-c] [-t] [-a] [-v] [--recover] [-w ref] [--stdin] commit-id url";
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add an extra level of indirection to main()
There are certain startup tasks that we expect every git
process to do. In some cases this is just to improve the
quality of the program (e.g., setting up gettext()). In
others it is a requirement for using certain functions in
libgit.a (e.g., system_path() expects that you have called
git_extract_argv0_path()).
Most commands are builtins and are covered by the git.c
version of main(). However, there are still a few external
commands that use their own main(). Each of these has to
remember to include the correct startup sequence, and we are
not always consistent.
Rather than just fix the inconsistencies, let's make this
harder to get wrong by providing a common main() that can
run this standard startup.
We basically have two options to do this:
- the compat/mingw.h file already does something like this by
adding a #define that replaces the definition of main with a
wrapper that calls mingw_startup().
The upside is that the code in each program doesn't need
to be changed at all; it's rewritten on the fly by the
preprocessor.
The downside is that it may make debugging of the startup
sequence a bit more confusing, as the preprocessor is
quietly inserting new code.
- the builtin functions are all of the form cmd_foo(),
and git.c's main() calls them.
This is much more explicit, which may make things more
obvious to somebody reading the code. It's also more
flexible (because of course we have to figure out _which_
cmd_foo() to call).
The downside is that each of the builtins must define
cmd_foo(), instead of just main().
This patch chooses the latter option, preferring the more
explicit approach, even though it is more invasive. We
introduce a new file common-main.c, with the "real" main. It
expects to call cmd_main() from whatever other objects it is
linked against.
We link common-main.o against anything that links against
libgit.a, since we know that such programs will need to do
this setup. Note that common-main.o can't actually go inside
libgit.a, as the linker would not pick up its main()
function automatically (it has no callers).
The rest of the patch is just adjusting all of the various
external programs (mostly in t/helper) to use cmd_main().
I've provided a global declaration for cmd_main(), which
means that all of the programs also need to match its
signature. In particular, many functions need to switch to
"const char **" instead of "char **" for argv. This effect
ripples out to a few other variables and functions, as well.
This makes the patch even more invasive, but the end result
is much better. We should be treating argv strings as const
anyway, and now all programs conform to the same signature
(which also matches the way builtins are defined).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-01 07:58:58 +02:00
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int cmd_main(int argc, const char **argv)
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2007-09-11 05:02:45 +02:00
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{
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struct walker *walker;
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int commits_on_stdin = 0;
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int commits;
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const char **write_ref = NULL;
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char **commit_id;
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2010-11-25 09:21:10 +01:00
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char *url = NULL;
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2007-09-11 05:02:45 +02:00
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int arg = 1;
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int rc = 0;
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int get_tree = 0;
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int get_history = 0;
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int get_all = 0;
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int get_verbosely = 0;
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int get_recover = 0;
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i18n: add infrastructure for translating Git with gettext
Change the skeleton implementation of i18n in Git to one that can show
localized strings to users for our C, Shell and Perl programs using
either GNU libintl or the Solaris gettext implementation.
This new internationalization support is enabled by default. If
gettext isn't available, or if Git is compiled with
NO_GETTEXT=YesPlease, Git falls back on its current behavior of
showing interface messages in English. When using the autoconf script
we'll auto-detect if the gettext libraries are installed and act
appropriately.
This change is somewhat large because as well as adding a C, Shell and
Perl i18n interface we're adding a lot of tests for them, and for
those tests to work we need a skeleton PO file to actually test
translations. A minimal Icelandic translation is included for this
purpose. Icelandic includes multi-byte characters which makes it easy
to test various edge cases, and it's a language I happen to
understand.
The rest of the commit message goes into detail about various
sub-parts of this commit.
= Installation
Gettext .mo files will be installed and looked for in the standard
$(prefix)/share/locale path. GIT_TEXTDOMAINDIR can also be set to
override that, but that's only intended to be used to test Git itself.
= Perl
Perl code that's to be localized should use the new Git::I18n
module. It imports a __ function into the caller's package by default.
Instead of using the high level Locale::TextDomain interface I've
opted to use the low-level (equivalent to the C interface)
Locale::Messages module, which Locale::TextDomain itself uses.
Locale::TextDomain does a lot of redundant work we don't need, and
some of it would potentially introduce bugs. It tries to set the
$TEXTDOMAIN based on package of the caller, and has its own
hardcoded paths where it'll search for messages.
I found it easier just to completely avoid it rather than try to
circumvent its behavior. In any case, this is an issue wholly
internal Git::I18N. Its guts can be changed later if that's deemed
necessary.
See <AANLkTilYD_NyIZMyj9dHtVk-ylVBfvyxpCC7982LWnVd@mail.gmail.com> for
a further elaboration on this topic.
= Shell
Shell code that's to be localized should use the git-sh-i18n
library. It's basically just a wrapper for the system's gettext.sh.
If gettext.sh isn't available we'll fall back on gettext(1) if it's
available. The latter is available without the former on Solaris,
which has its own non-GNU gettext implementation. We also need to
emulate eval_gettext() there.
If neither are present we'll use a dumb printf(1) fall-through
wrapper.
= About libcharset.h and langinfo.h
We use libcharset to query the character set of the current locale if
it's available. I.e. we'll use it instead of nl_langinfo if
HAVE_LIBCHARSET_H is set.
The GNU gettext manual recommends using langinfo.h's
nl_langinfo(CODESET) to acquire the current character set, but on
systems that have libcharset.h's locale_charset() using the latter is
either saner, or the only option on those systems.
GNU and Solaris have a nl_langinfo(CODESET), FreeBSD can use either,
but MinGW and some others need to use libcharset.h's locale_charset()
instead.
=Credits
This patch is based on work by Jeff Epler <jepler@unpythonic.net> who
did the initial Makefile / C work, and a lot of comments from the Git
mailing list, including Jonathan Nieder, Jakub Narebski, Johannes
Sixt, Erik Faye-Lund, Peter Krefting, Junio C Hamano, Thomas Rast and
others.
[jc: squashed a small Makefile fix from Ramsay]
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-18 00:14:42 +01:00
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git_setup_gettext();
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2007-09-11 05:02:45 +02:00
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while (arg < argc && argv[arg][0] == '-') {
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if (argv[arg][1] == 't') {
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get_tree = 1;
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} else if (argv[arg][1] == 'c') {
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get_history = 1;
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} else if (argv[arg][1] == 'a') {
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get_all = 1;
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get_tree = 1;
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get_history = 1;
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} else if (argv[arg][1] == 'v') {
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get_verbosely = 1;
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} else if (argv[arg][1] == 'w') {
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write_ref = &argv[arg + 1];
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arg++;
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2009-11-09 16:04:59 +01:00
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} else if (argv[arg][1] == 'h') {
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usage(http_fetch_usage);
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2007-09-11 05:02:45 +02:00
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} else if (!strcmp(argv[arg], "--recover")) {
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get_recover = 1;
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} else if (!strcmp(argv[arg], "--stdin")) {
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commits_on_stdin = 1;
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}
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arg++;
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}
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2009-11-09 16:04:59 +01:00
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if (argc != arg + 2 - commits_on_stdin)
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usage(http_fetch_usage);
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2007-09-11 05:02:45 +02:00
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if (commits_on_stdin) {
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commits = walker_targets_stdin(&commit_id, &write_ref);
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} else {
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commit_id = (char **) &argv[arg++];
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commits = 1;
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}
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2010-11-25 09:21:10 +01:00
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2011-08-24 02:29:51 +02:00
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if (get_all == 0)
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warning("http-fetch: use without -a is deprecated.\n"
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"In a future release, -a will become the default.");
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2010-11-25 09:21:10 +01:00
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if (argv[arg])
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str_end_url_with_slash(argv[arg], &url);
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2009-11-09 16:04:59 +01:00
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2011-03-28 03:32:19 +02:00
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setup_git_directory();
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2009-11-09 16:04:59 +01:00
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git_config(git_default_config, NULL);
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2011-12-14 01:11:56 +01:00
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http_init(NULL, url, 0);
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2010-03-02 11:49:29 +01:00
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walker = get_http_walker(url);
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2007-09-11 05:02:45 +02:00
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walker->get_tree = get_tree;
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walker->get_history = get_history;
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walker->get_all = get_all;
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walker->get_verbosely = get_verbosely;
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walker->get_recover = get_recover;
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rc = walker_fetch(walker, commits, commit_id, write_ref, url);
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if (commits_on_stdin)
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walker_targets_free(commits, commit_id, write_ref);
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if (walker->corrupt_object_found) {
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fprintf(stderr,
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"Some loose object were found to be corrupt, but they might be just\n"
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"a false '404 Not Found' error message sent with incorrect HTTP\n"
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2008-09-09 12:28:30 +02:00
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"status code. Suggest running 'git fsck'.\n");
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2007-09-11 05:02:45 +02:00
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}
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walker_free(walker);
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2010-03-02 11:49:29 +01:00
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http_cleanup();
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2007-09-11 05:02:45 +02:00
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2010-11-25 09:21:10 +01:00
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free(url);
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2008-01-19 16:22:50 +01:00
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2007-09-11 05:02:45 +02:00
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return rc;
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}
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