git-commit-vandalism/builtin/var.c
Junio C Hamano 0807e57807 Merge branch 'en/header-split-cache-h'
Header clean-up.

* en/header-split-cache-h: (24 commits)
  protocol.h: move definition of DEFAULT_GIT_PORT from cache.h
  mailmap, quote: move declarations of global vars to correct unit
  treewide: reduce includes of cache.h in other headers
  treewide: remove double forward declaration of read_in_full
  cache.h: remove unnecessary includes
  treewide: remove cache.h inclusion due to pager.h changes
  pager.h: move declarations for pager.c functions from cache.h
  treewide: remove cache.h inclusion due to editor.h changes
  editor: move editor-related functions and declarations into common file
  treewide: remove cache.h inclusion due to object.h changes
  object.h: move some inline functions and defines from cache.h
  treewide: remove cache.h inclusion due to object-file.h changes
  object-file.h: move declarations for object-file.c functions from cache.h
  treewide: remove cache.h inclusion due to git-zlib changes
  git-zlib: move declarations for git-zlib functions from cache.h
  treewide: remove cache.h inclusion due to object-name.h changes
  object-name.h: move declarations for object-name.c functions from cache.h
  treewide: remove unnecessary cache.h inclusion
  treewide: be explicit about dependence on mem-pool.h
  treewide: be explicit about dependence on oid-array.h
  ...
2023-04-25 13:56:20 -07:00

110 lines
2.0 KiB
C

/*
* GIT - The information manager from hell
*
* Copyright (C) Eric Biederman, 2005
*/
#include "builtin.h"
#include "config.h"
#include "editor.h"
#include "ident.h"
#include "pager.h"
#include "refs.h"
static const char var_usage[] = "git var (-l | <variable>)";
static const char *editor(int flag)
{
return git_editor();
}
static const char *sequence_editor(int flag)
{
return git_sequence_editor();
}
static const char *pager(int flag)
{
const char *pgm = git_pager(1);
if (!pgm)
pgm = "cat";
return pgm;
}
static const char *default_branch(int flag)
{
return git_default_branch_name(1);
}
struct git_var {
const char *name;
const char *(*read)(int);
};
static struct git_var git_vars[] = {
{ "GIT_COMMITTER_IDENT", git_committer_info },
{ "GIT_AUTHOR_IDENT", git_author_info },
{ "GIT_EDITOR", editor },
{ "GIT_SEQUENCE_EDITOR", sequence_editor },
{ "GIT_PAGER", pager },
{ "GIT_DEFAULT_BRANCH", default_branch },
{ "", NULL },
};
static void list_vars(void)
{
struct git_var *ptr;
const char *val;
for (ptr = git_vars; ptr->read; ptr++)
if ((val = ptr->read(0)))
printf("%s=%s\n", ptr->name, val);
}
static const struct git_var *get_git_var(const char *var)
{
struct git_var *ptr;
for (ptr = git_vars; ptr->read; ptr++) {
if (strcmp(var, ptr->name) == 0) {
return ptr;
}
}
return NULL;
}
static int show_config(const char *var, const char *value, void *cb)
{
if (value)
printf("%s=%s\n", var, value);
else
printf("%s\n", var);
return git_default_config(var, value, cb);
}
int cmd_var(int argc, const char **argv, const char *prefix UNUSED)
{
const struct git_var *git_var;
const char *val;
if (argc != 2)
usage(var_usage);
if (strcmp(argv[1], "-l") == 0) {
git_config(show_config, NULL);
list_vars();
return 0;
}
git_config(git_default_config, NULL);
git_var = get_git_var(argv[1]);
if (!git_var)
usage(var_usage);
val = git_var->read(IDENT_STRICT);
if (!val)
return 1;
printf("%s\n", val);
return 0;
}