Revision 0ad64fd0b8d073e0c73836858a54f693c9191918 authored by Frank Lichtenheld on 18 April 2007, 22:10:22 UTC, committed by Junio C Hamano on 18 April 2007, 22:41:59 UTC
First use [verse] in the SYNOPSIS so that the line break actually shows. Secondly drop the quotes around '.mailmap' since this exposes a bug in our toolchain (didn't bother enough yet to find out wether it is asciidoc's fault or that of the XSL templates) that leads to the dot not getting escaped correctly in the roff output and thereby swallowing the line. Signed-off-by: Frank Lichtenheld <frank@lichtenheld.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
1 parent 0afa764
git.c
#include "builtin.h"
#include "exec_cmd.h"
#include "cache.h"
#include "quote.h"
const char git_usage_string[] =
"git [--version] [--exec-path[=GIT_EXEC_PATH]] [-p|--paginate] [--bare] [--git-dir=GIT_DIR] [--help] COMMAND [ARGS]";
static void prepend_to_path(const char *dir, int len)
{
const char *old_path = getenv("PATH");
char *path;
int path_len = len;
if (!old_path)
old_path = "/usr/local/bin:/usr/bin:/bin";
path_len = len + strlen(old_path) + 1;
path = xmalloc(path_len + 1);
memcpy(path, dir, len);
path[len] = ':';
memcpy(path + len + 1, old_path, path_len - len);
setenv("PATH", path, 1);
free(path);
}
static int handle_options(const char*** argv, int* argc)
{
int handled = 0;
while (*argc > 0) {
const char *cmd = (*argv)[0];
if (cmd[0] != '-')
break;
/*
* For legacy reasons, the "version" and "help"
* commands can be written with "--" prepended
* to make them look like flags.
*/
if (!strcmp(cmd, "--help") || !strcmp(cmd, "--version"))
break;
/*
* Check remaining flags.
*/
if (!prefixcmp(cmd, "--exec-path")) {
cmd += 11;
if (*cmd == '=')
git_set_exec_path(cmd + 1);
else {
puts(git_exec_path());
exit(0);
}
} else if (!strcmp(cmd, "-p") || !strcmp(cmd, "--paginate")) {
setup_pager();
} else if (!strcmp(cmd, "--git-dir")) {
if (*argc < 2) {
fprintf(stderr, "No directory given for --git-dir.\n" );
usage(git_usage_string);
}
setenv(GIT_DIR_ENVIRONMENT, (*argv)[1], 1);
(*argv)++;
(*argc)--;
handled++;
} else if (!prefixcmp(cmd, "--git-dir=")) {
setenv(GIT_DIR_ENVIRONMENT, cmd + 10, 1);
} else if (!strcmp(cmd, "--bare")) {
static char git_dir[PATH_MAX+1];
setenv(GIT_DIR_ENVIRONMENT, getcwd(git_dir, sizeof(git_dir)), 1);
} else {
fprintf(stderr, "Unknown option: %s\n", cmd);
usage(git_usage_string);
}
(*argv)++;
(*argc)--;
handled++;
}
return handled;
}
static const char *alias_command;
static char *alias_string;
static int git_alias_config(const char *var, const char *value)
{
if (!prefixcmp(var, "alias.") && !strcmp(var + 6, alias_command)) {
alias_string = xstrdup(value);
}
return 0;
}
static int split_cmdline(char *cmdline, const char ***argv)
{
int src, dst, count = 0, size = 16;
char quoted = 0;
*argv = xmalloc(sizeof(char*) * size);
/* split alias_string */
(*argv)[count++] = cmdline;
for (src = dst = 0; cmdline[src];) {
char c = cmdline[src];
if (!quoted && isspace(c)) {
cmdline[dst++] = 0;
while (cmdline[++src]
&& isspace(cmdline[src]))
; /* skip */
if (count >= size) {
size += 16;
*argv = xrealloc(*argv, sizeof(char*) * size);
}
(*argv)[count++] = cmdline + dst;
} else if(!quoted && (c == '\'' || c == '"')) {
quoted = c;
src++;
} else if (c == quoted) {
quoted = 0;
src++;
} else {
if (c == '\\' && quoted != '\'') {
src++;
c = cmdline[src];
if (!c) {
free(*argv);
*argv = NULL;
return error("cmdline ends with \\");
}
}
cmdline[dst++] = c;
src++;
}
}
cmdline[dst] = 0;
if (quoted) {
free(*argv);
*argv = NULL;
return error("unclosed quote");
}
return count;
}
static int handle_alias(int *argcp, const char ***argv)
{
int nongit = 0, ret = 0, saved_errno = errno;
const char *subdir;
int count, option_count;
const char** new_argv;
subdir = setup_git_directory_gently(&nongit);
alias_command = (*argv)[0];
git_config(git_alias_config);
if (alias_string) {
if (alias_string[0] == '!') {
trace_printf("trace: alias to shell cmd: %s => %s\n",
alias_command, alias_string + 1);
ret = system(alias_string + 1);
if (ret >= 0 && WIFEXITED(ret) &&
WEXITSTATUS(ret) != 127)
exit(WEXITSTATUS(ret));
die("Failed to run '%s' when expanding alias '%s'\n",
alias_string + 1, alias_command);
}
count = split_cmdline(alias_string, &new_argv);
option_count = handle_options(&new_argv, &count);
memmove(new_argv - option_count, new_argv,
count * sizeof(char *));
new_argv -= option_count;
if (count < 1)
die("empty alias for %s", alias_command);
if (!strcmp(alias_command, new_argv[0]))
die("recursive alias: %s", alias_command);
trace_argv_printf(new_argv, count,
"trace: alias expansion: %s =>",
alias_command);
new_argv = xrealloc(new_argv, sizeof(char*) *
(count + *argcp + 1));
/* insert after command name */
memcpy(new_argv + count, *argv + 1, sizeof(char*) * *argcp);
new_argv[count+*argcp] = NULL;
*argv = new_argv;
*argcp += count - 1;
ret = 1;
}
if (subdir)
chdir(subdir);
errno = saved_errno;
return ret;
}
const char git_version_string[] = GIT_VERSION;
#define RUN_SETUP (1<<0)
#define USE_PAGER (1<<1)
/*
* require working tree to be present -- anything uses this needs
* RUN_SETUP for reading from the configuration file.
*/
#define NOT_BARE (1<<2)
static void handle_internal_command(int argc, const char **argv, char **envp)
{
const char *cmd = argv[0];
static struct cmd_struct {
const char *cmd;
int (*fn)(int, const char **, const char *);
int option;
} commands[] = {
{ "add", cmd_add, RUN_SETUP | NOT_BARE },
{ "annotate", cmd_annotate, USE_PAGER },
{ "apply", cmd_apply },
{ "archive", cmd_archive },
{ "blame", cmd_blame, RUN_SETUP },
{ "branch", cmd_branch, RUN_SETUP },
{ "bundle", cmd_bundle },
{ "cat-file", cmd_cat_file, RUN_SETUP },
{ "checkout-index", cmd_checkout_index, RUN_SETUP },
{ "check-ref-format", cmd_check_ref_format },
{ "cherry", cmd_cherry, RUN_SETUP },
{ "cherry-pick", cmd_cherry_pick, RUN_SETUP | NOT_BARE },
{ "commit-tree", cmd_commit_tree, RUN_SETUP },
{ "config", cmd_config },
{ "count-objects", cmd_count_objects, RUN_SETUP },
{ "describe", cmd_describe, RUN_SETUP },
{ "diff", cmd_diff, USE_PAGER },
{ "diff-files", cmd_diff_files },
{ "diff-index", cmd_diff_index, RUN_SETUP },
{ "diff-tree", cmd_diff_tree, RUN_SETUP },
{ "fetch--tool", cmd_fetch__tool, RUN_SETUP },
{ "fmt-merge-msg", cmd_fmt_merge_msg, RUN_SETUP },
{ "for-each-ref", cmd_for_each_ref, RUN_SETUP },
{ "format-patch", cmd_format_patch, RUN_SETUP },
{ "fsck", cmd_fsck, RUN_SETUP },
{ "fsck-objects", cmd_fsck, RUN_SETUP },
{ "gc", cmd_gc, RUN_SETUP },
{ "get-tar-commit-id", cmd_get_tar_commit_id },
{ "grep", cmd_grep, RUN_SETUP | USE_PAGER },
{ "help", cmd_help },
{ "init", cmd_init_db },
{ "init-db", cmd_init_db },
{ "log", cmd_log, RUN_SETUP | USE_PAGER },
{ "ls-files", cmd_ls_files, RUN_SETUP },
{ "ls-tree", cmd_ls_tree, RUN_SETUP },
{ "mailinfo", cmd_mailinfo },
{ "mailsplit", cmd_mailsplit },
{ "merge-base", cmd_merge_base, RUN_SETUP },
{ "merge-file", cmd_merge_file },
{ "mv", cmd_mv, RUN_SETUP | NOT_BARE },
{ "name-rev", cmd_name_rev, RUN_SETUP },
{ "pack-objects", cmd_pack_objects, RUN_SETUP },
{ "pickaxe", cmd_blame, RUN_SETUP | USE_PAGER },
{ "prune", cmd_prune, RUN_SETUP },
{ "prune-packed", cmd_prune_packed, RUN_SETUP },
{ "push", cmd_push, RUN_SETUP },
{ "read-tree", cmd_read_tree, RUN_SETUP },
{ "reflog", cmd_reflog, RUN_SETUP },
{ "repo-config", cmd_config },
{ "rerere", cmd_rerere, RUN_SETUP },
{ "rev-list", cmd_rev_list, RUN_SETUP },
{ "rev-parse", cmd_rev_parse, RUN_SETUP },
{ "revert", cmd_revert, RUN_SETUP | NOT_BARE },
{ "rm", cmd_rm, RUN_SETUP | NOT_BARE },
{ "runstatus", cmd_runstatus, RUN_SETUP | NOT_BARE },
{ "shortlog", cmd_shortlog, RUN_SETUP | USE_PAGER },
{ "show-branch", cmd_show_branch, RUN_SETUP },
{ "show", cmd_show, RUN_SETUP | USE_PAGER },
{ "stripspace", cmd_stripspace },
{ "symbolic-ref", cmd_symbolic_ref, RUN_SETUP },
{ "tar-tree", cmd_tar_tree },
{ "unpack-objects", cmd_unpack_objects, RUN_SETUP },
{ "update-index", cmd_update_index, RUN_SETUP },
{ "update-ref", cmd_update_ref, RUN_SETUP },
{ "upload-archive", cmd_upload_archive },
{ "version", cmd_version },
{ "whatchanged", cmd_whatchanged, RUN_SETUP | USE_PAGER },
{ "write-tree", cmd_write_tree, RUN_SETUP },
{ "verify-pack", cmd_verify_pack },
{ "show-ref", cmd_show_ref, RUN_SETUP },
{ "pack-refs", cmd_pack_refs, RUN_SETUP },
};
int i;
/* Turn "git cmd --help" into "git help cmd" */
if (argc > 1 && !strcmp(argv[1], "--help")) {
argv[1] = argv[0];
argv[0] = cmd = "help";
}
for (i = 0; i < ARRAY_SIZE(commands); i++) {
struct cmd_struct *p = commands+i;
const char *prefix;
if (strcmp(p->cmd, cmd))
continue;
prefix = NULL;
if (p->option & RUN_SETUP)
prefix = setup_git_directory();
if (p->option & USE_PAGER)
setup_pager();
if ((p->option & NOT_BARE) &&
(is_bare_repository() || is_inside_git_dir()))
die("%s must be run in a work tree", cmd);
trace_argv_printf(argv, argc, "trace: built-in: git");
exit(p->fn(argc, argv, prefix));
}
}
int main(int argc, const char **argv, char **envp)
{
const char *cmd = argv[0] ? argv[0] : "git-help";
char *slash = strrchr(cmd, '/');
const char *exec_path = NULL;
int done_alias = 0;
/*
* Take the basename of argv[0] as the command
* name, and the dirname as the default exec_path
* if it's an absolute path and we don't have
* anything better.
*/
if (slash) {
*slash++ = 0;
if (*cmd == '/')
exec_path = cmd;
cmd = slash;
}
/*
* "git-xxxx" is the same as "git xxxx", but we obviously:
*
* - cannot take flags in between the "git" and the "xxxx".
* - cannot execute it externally (since it would just do
* the same thing over again)
*
* So we just directly call the internal command handler, and
* die if that one cannot handle it.
*/
if (!prefixcmp(cmd, "git-")) {
cmd += 4;
argv[0] = cmd;
handle_internal_command(argc, argv, envp);
die("cannot handle %s internally", cmd);
}
/* Look for flags.. */
argv++;
argc--;
handle_options(&argv, &argc);
if (argc > 0) {
if (!prefixcmp(argv[0], "--"))
argv[0] += 2;
} else {
/* Default command: "help" */
argv[0] = "help";
argc = 1;
}
cmd = argv[0];
/*
* We search for git commands in the following order:
* - git_exec_path()
* - the path of the "git" command if we could find it
* in $0
* - the regular PATH.
*/
if (exec_path)
prepend_to_path(exec_path, strlen(exec_path));
exec_path = git_exec_path();
prepend_to_path(exec_path, strlen(exec_path));
while (1) {
/* See if it's an internal command */
handle_internal_command(argc, argv, envp);
/* .. then try the external ones */
execv_git_cmd(argv);
/* It could be an alias -- this works around the insanity
* of overriding "git log" with "git show" by having
* alias.log = show
*/
if (done_alias || !handle_alias(&argc, &argv))
break;
done_alias = 1;
}
if (errno == ENOENT) {
if (done_alias) {
fprintf(stderr, "Expansion of alias '%s' failed; "
"'%s' is not a git-command\n",
cmd, argv[0]);
exit(1);
}
help_unknown_cmd(cmd);
}
fprintf(stderr, "Failed to run command '%s': %s\n",
cmd, strerror(errno));
return 1;
}
![swh spinner](/static/img/swh-spinner.gif)
Computing file changes ...