diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-01-22 07:21:55 +0300 |
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committer | Junio C Hamano <gitster@pobox.com> | 2010-01-22 09:04:42 +0300 |
commit | 55b6745d633b9501576eb02183da0b0fb1cee964 (patch) | |
tree | 32f6d0a3026466c9a04438387f0f7701b88f0245 /builtin-var.c | |
parent | 8b187e6b0e114055071a9ae8f56b9a2a24bfaf8f (diff) |
make "git var" a built-in
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin-var.c')
-rw-r--r-- | builtin-var.c | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/builtin-var.c b/builtin-var.c new file mode 100644 index 0000000000..2280518190 --- /dev/null +++ b/builtin-var.c @@ -0,0 +1,99 @@ +/* + * GIT - The information manager from hell + * + * Copyright (C) Eric Biederman, 2005 + */ +#include "cache.h" +#include "exec_cmd.h" + +static const char var_usage[] = "git var [-l | <variable>]"; + +static const char *editor(int flag) +{ + const char *pgm = git_editor(); + + if (!pgm && flag & IDENT_ERROR_ON_NO_NAME) + die("Terminal is dumb, but EDITOR unset"); + + return pgm; +} + +static const char *pager(int flag) +{ + const char *pgm = git_pager(); + + if (!pgm) + pgm = "cat"; + return pgm; +} + +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_PAGER", pager }, + { "", 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 char *read_var(const char *var) +{ + struct git_var *ptr; + const char *val; + val = NULL; + for (ptr = git_vars; ptr->read; ptr++) { + if (strcmp(var, ptr->name) == 0) { + val = ptr->read(IDENT_ERROR_ON_NO_NAME); + break; + } + } + return val; +} + +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) +{ + const char *val; + int nongit; + if (argc != 2) { + usage(var_usage); + } + + setup_git_directory_gently(&nongit); + val = NULL; + + if (strcmp(argv[1], "-l") == 0) { + git_config(show_config, NULL); + list_vars(); + return 0; + } + git_config(git_default_config, NULL); + val = read_var(argv[1]); + if (!val) + usage(var_usage); + + printf("%s\n", val); + + return 0; +} |