/*
- * builtin-help.c
- *
* Builtin help command
*/
#include "cache.h"
static const char *html_path;
static int show_all = 0;
+static int show_guides = 0;
static unsigned int colopts;
static enum help_format help_format = HELP_FORMAT_NONE;
static struct option builtin_help_options[] = {
- OPT_BOOLEAN('a', "all", &show_all, N_("print all available commands")),
+ OPT_BOOL('a', "all", &show_all, N_("print all available commands")),
+ OPT_BOOL('g', "guides", &show_guides, N_("print list of useful guides")),
OPT_SET_INT('m', "man", &help_format, N_("show man page"), HELP_FORMAT_MAN),
OPT_SET_INT('w', "web", &help_format, N_("show manual in web browser"),
HELP_FORMAT_WEB),
};
static const char * const builtin_help_usage[] = {
- N_("git help [--all] [--man|--web|--info] [command]"),
+ N_("git help [--all] [--guides] [--man | --web | --info] [<command>]"),
NULL
};
static int check_emacsclient_version(void)
{
struct strbuf buffer = STRBUF_INIT;
- struct child_process ec_process;
+ struct child_process ec_process = CHILD_PROCESS_INIT;
const char *argv_ec[] = { "emacsclient", "--version", NULL };
int version;
/* emacsclient prints its version number on stderr */
- memset(&ec_process, 0, sizeof(ec_process));
ec_process.argv = argv_ec;
ec_process.err = -1;
ec_process.stdout_to_stderr = 1;
*/
finish_command(&ec_process);
- if (prefixcmp(buffer.buf, "emacsclient")) {
+ if (!starts_with(buffer.buf, "emacsclient")) {
strbuf_release(&buffer);
return error(_("Failed to parse emacsclient version."));
}
/* It's simpler to launch konqueror using kfmclient. */
if (path) {
- const char *file = strrchr(path, '/');
- if (file && !strcmp(file + 1, "konqueror")) {
- char *new = xstrdup(path);
- char *dest = strrchr(new, '/');
-
- /* strlen("konqueror") == strlen("kfmclient") */
- strcpy(dest + 1, "kfmclient");
- path = new;
- }
- if (file)
- filename = file;
+ size_t len;
+ if (strip_suffix(path, "/konqueror", &len))
+ path = xstrfmt("%.*s/kfmclient", (int)len, path);
+ filename = basename((char *)path);
} else
path = "kfmclient";
strbuf_addf(&man_page, "man:%s(1)", page);
{
struct strbuf shell_cmd = STRBUF_INIT;
strbuf_addf(&shell_cmd, "%s %s", cmd, page);
- execl("/bin/sh", "sh", "-c", shell_cmd.buf, (char *)NULL);
+ execl(SHELL_PATH, SHELL_PATH, "-c", shell_cmd.buf, (char *)NULL);
warning(_("failed to exec '%s': %s"), cmd, strerror(errno));
}
while (*p)
p = &((*p)->next);
*p = xcalloc(1, (sizeof(**p) + len + 1));
- strncpy((*p)->name, name, len);
+ memcpy((*p)->name, name, len); /* NUL-terminated by xcalloc */
}
static int supported_man_viewer(const char *name, size_t len)
{
struct man_viewer_info_list *new = xcalloc(1, sizeof(*new) + len + 1);
- strncpy(new->name, name, len);
+ memcpy(new->name, name, len); /* NUL-terminated by xcalloc */
new->info = xstrdup(value);
new->next = man_viewer_info_list;
man_viewer_info_list = new;
static int git_help_config(const char *var, const char *value, void *cb)
{
- if (!prefixcmp(var, "column."))
+ if (starts_with(var, "column."))
return git_column_config(var, value, "help", &colopts);
if (!strcmp(var, "help.format")) {
if (!value)
add_man_viewer(value);
return 0;
}
- if (!prefixcmp(var, "man."))
+ if (starts_with(var, "man."))
return add_man_viewer_info(var, value);
return git_default_config(var, value, cb);
static int is_git_command(const char *s)
{
+ if (is_builtin(s))
+ return 1;
+
+ load_command_list("git-", &main_cmds, &other_cmds);
return is_in_cmdlist(&main_cmds, s) ||
is_in_cmdlist(&other_cmds, s);
}
-static const char *prepend(const char *prefix, const char *cmd)
-{
- size_t pre_len = strlen(prefix);
- size_t cmd_len = strlen(cmd);
- char *p = xmalloc(pre_len + cmd_len + 1);
- memcpy(p, prefix, pre_len);
- strcpy(p + pre_len, cmd);
- return p;
-}
-
static const char *cmd_to_page(const char *git_cmd)
{
if (!git_cmd)
return "git";
- else if (!prefixcmp(git_cmd, "git"))
+ else if (starts_with(git_cmd, "git"))
return git_cmd;
else if (is_git_command(git_cmd))
- return prepend("git-", git_cmd);
+ return xstrfmt("git-%s", git_cmd);
else
- return prepend("git", git_cmd);
+ return xstrfmt("git%s", git_cmd);
}
static void setup_man_path(void)
{
struct strbuf new_path = STRBUF_INIT;
const char *old_path = getenv("MANPATH");
+ char *git_man_path = system_path(GIT_MAN_PATH);
/* We should always put ':' after our path. If there is no
* old_path, the ':' at the end will let 'man' to try
* system-wide paths after ours to find the manual page. If
* there is old_path, we need ':' as delimiter. */
- strbuf_addstr(&new_path, system_path(GIT_MAN_PATH));
+ strbuf_addstr(&new_path, git_man_path);
strbuf_addch(&new_path, ':');
if (old_path)
strbuf_addstr(&new_path, old_path);
+ free(git_man_path);
setenv("MANPATH", new_path.buf, 1);
strbuf_release(&new_path);
static void get_html_page_path(struct strbuf *page_path, const char *page)
{
struct stat st;
+ char *to_free = NULL;
+
if (!html_path)
- html_path = system_path(GIT_HTML_PATH);
+ html_path = to_free = system_path(GIT_HTML_PATH);
/* Check that we have a git documentation directory. */
if (!strstr(html_path, "://")) {
strbuf_init(page_path, 0);
strbuf_addf(page_path, "%s/%s.html", html_path, page);
+ free(to_free);
}
/*
open_html(page_path.buf);
}
+static struct {
+ const char *name;
+ const char *help;
+} common_guides[] = {
+ { "attributes", N_("Defining attributes per path") },
+ { "everyday", N_("Everyday Git With 20 Commands Or So") },
+ { "glossary", N_("A Git glossary") },
+ { "ignore", N_("Specifies intentionally untracked files to ignore") },
+ { "modules", N_("Defining submodule properties") },
+ { "revisions", N_("Specifying revisions and ranges for Git") },
+ { "tutorial", N_("A tutorial introduction to Git (for version 1.5.1 or newer)") },
+ { "workflows", N_("An overview of recommended workflows with Git") },
+};
+
+static void list_common_guides_help(void)
+{
+ int i, longest = 0;
+
+ for (i = 0; i < ARRAY_SIZE(common_guides); i++) {
+ if (longest < strlen(common_guides[i].name))
+ longest = strlen(common_guides[i].name);
+ }
+
+ puts(_("The common Git guides are:\n"));
+ for (i = 0; i < ARRAY_SIZE(common_guides); i++) {
+ printf(" %s ", common_guides[i].name);
+ mput_char(' ', longest - strlen(common_guides[i].name));
+ puts(_(common_guides[i].help));
+ }
+ putchar('\n');
+}
+
int cmd_help(int argc, const char **argv, const char *prefix)
{
int nongit;
- const char *alias;
+ char *alias;
enum help_format parsed_help_format;
- load_command_list("git-", &main_cmds, &other_cmds);
argc = parse_options(argc, argv, prefix, builtin_help_options,
builtin_help_usage, 0);
if (show_all) {
git_config(git_help_config, NULL);
printf(_("usage: %s%s"), _(git_usage_string), "\n\n");
+ load_command_list("git-", &main_cmds, &other_cmds);
list_commands(colopts, &main_cmds, &other_cmds);
+ }
+
+ if (show_guides)
+ list_common_guides_help();
+
+ if (show_all || show_guides) {
printf("%s\n", _(git_more_info_string));
+ /*
+ * We're done. Ignore any remaining args
+ */
return 0;
}
alias = alias_lookup(argv[0]);
if (alias && !is_git_command(argv[0])) {
printf_ln(_("`git %s' is aliased to `%s'"), argv[0], alias);
+ free(alias);
return 0;
}