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git wrapper: introduce startup_info struct

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The startup_info struct will collect information managed by the git
setup code, such as the prefix for relative paths passed on the
command line (i.e., path to the starting cwd from the toplevel of
the work tree) and whether a git repository has been found.

In other words, startup_info is intended to be a collection of global
variables with results that were previously returned from setup
functions.  This state is global anyway (since the cwd is), even
if it is not currently tracked that way.  Letting these values persist
means there is more flexibility in deciding when to run setup.

For now, the struct is empty.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nguyễn Thái Ngọc Duy 2010-08-05 21:40:35 -05:00 committed by Junio C Hamano
parent 0d0ba03a18
commit e37c1329fa
3 changed files with 9 additions and 0 deletions
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5
cache.h
View file

@ -1097,6 +1097,11 @@ void overlay_tree_on_cache(const char *tree_name, const char *prefix);
char *alias_lookup(const char *alias);
int split_cmdline(char *cmdline, const char ***argv);
/* git.c */
struct startup_info {
};
extern struct startup_info *startup_info;
/* builtin/merge.c */
int checkout_fast_forward(const unsigned char *from, const unsigned char *to);

1
environment.c
View file

@ -53,6 +53,7 @@ enum object_creation_mode object_creation_mode = OBJECT_CREATION_MODE;
char *notes_ref_name;
int grafts_replace_parents = 1;
int core_apply_sparse_checkout;
struct startup_info *startup_info;
/* Parallel index stat data preload? */
int core_preload_index = 0;

3
git.c
View file

@ -14,6 +14,7 @@ const char git_usage_string[] =
const char git_more_info_string[] =
"See 'git help COMMAND' for more information on a specific command.";
static struct startup_info git_startup_info;
static int use_pager = -1;
struct pager_config {
const char *cmd;
@ -489,6 +490,8 @@ int main(int argc, const char **argv)
{
const char *cmd;
startup_info = &git_startup_info;
cmd = git_extract_argv0_path(argv[0]);
if (!cmd)
cmd = "git-help";