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https://github.com/git/git
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e06c9e1df2
Introduce the logical variable GIT_DEFAULT_BRANCH which represents the
the default branch name that will be used by "git init".
Currently this variable is equivalent to
git config init.defaultbranch || 'master'
This however will break if at one point the default branch is changed as
indicated by `default_branch_name_advice` in `refs.c`.
By providing this command ahead of time users of git can make their
code forward-compatible.
Helped-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
101 lines
1.8 KiB
C
101 lines
1.8 KiB
C
/*
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* GIT - The information manager from hell
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*
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* Copyright (C) Eric Biederman, 2005
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*/
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#include "builtin.h"
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#include "config.h"
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#include "refs.h"
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static const char var_usage[] = "git var (-l | <variable>)";
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static const char *editor(int flag)
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{
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const char *pgm = git_editor();
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if (!pgm && flag & IDENT_STRICT)
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die("Terminal is dumb, but EDITOR unset");
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return pgm;
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}
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static const char *pager(int flag)
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{
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const char *pgm = git_pager(1);
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if (!pgm)
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pgm = "cat";
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return pgm;
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}
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static const char *default_branch(int flag)
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{
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return git_default_branch_name(1);
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}
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struct git_var {
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const char *name;
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const char *(*read)(int);
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};
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static struct git_var git_vars[] = {
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{ "GIT_COMMITTER_IDENT", git_committer_info },
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{ "GIT_AUTHOR_IDENT", git_author_info },
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{ "GIT_EDITOR", editor },
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{ "GIT_PAGER", pager },
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{ "GIT_DEFAULT_BRANCH", default_branch },
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{ "", NULL },
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};
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static void list_vars(void)
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{
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struct git_var *ptr;
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const char *val;
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for (ptr = git_vars; ptr->read; ptr++)
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if ((val = ptr->read(0)))
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printf("%s=%s\n", ptr->name, val);
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}
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static const char *read_var(const char *var)
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{
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struct git_var *ptr;
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const char *val;
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val = NULL;
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for (ptr = git_vars; ptr->read; ptr++) {
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if (strcmp(var, ptr->name) == 0) {
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val = ptr->read(IDENT_STRICT);
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break;
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}
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}
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return val;
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}
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static int show_config(const char *var, const char *value, void *cb)
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{
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if (value)
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printf("%s=%s\n", var, value);
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else
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printf("%s\n", var);
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return git_default_config(var, value, cb);
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}
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int cmd_var(int argc, const char **argv, const char *prefix)
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{
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const char *val = NULL;
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if (argc != 2)
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usage(var_usage);
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if (strcmp(argv[1], "-l") == 0) {
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git_config(show_config, NULL);
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list_vars();
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return 0;
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}
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git_config(git_default_config, NULL);
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val = read_var(argv[1]);
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if (!val)
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usage(var_usage);
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printf("%s\n", val);
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return 0;
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}
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