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Diffstat (limited to 'builtin/help.c')
-rw-r--r--builtin/help.c94
1 files changed, 72 insertions, 22 deletions
diff --git a/builtin/help.c b/builtin/help.c
index 6067a6134b..3422e73079 100644
--- a/builtin/help.c
+++ b/builtin/help.c
@@ -1,6 +1,4 @@
/*
- * builtin-help.c
- *
* Builtin help command
*/
#include "cache.h"
@@ -36,10 +34,12 @@ enum help_format {
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),
@@ -49,7 +49,7 @@ static struct option builtin_help_options[] = {
};
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
};
@@ -79,12 +79,11 @@ static const char *get_man_viewer_info(const char *name)
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;
@@ -100,7 +99,7 @@ static int check_emacsclient_version(void)
*/
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."));
}
@@ -172,7 +171,7 @@ static void exec_man_cmd(const char *cmd, const char *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));
}
@@ -236,21 +235,21 @@ static int add_man_viewer_cmd(const char *name,
static int add_man_viewer_info(const char *var, const char *value)
{
- const char *name = var + 4;
- const char *subkey = strrchr(name, '.');
+ const char *name, *subkey;
+ int namelen;
- if (!subkey)
+ if (parse_config_key(var, "man", &name, &namelen, &subkey) < 0 || !name)
return 0;
- if (!strcmp(subkey, ".path")) {
+ if (!strcmp(subkey, "path")) {
if (!value)
return config_error_nonbool(var);
- return add_man_viewer_path(name, subkey - name, value);
+ return add_man_viewer_path(name, namelen, value);
}
- if (!strcmp(subkey, ".cmd")) {
+ if (!strcmp(subkey, "cmd")) {
if (!value)
return config_error_nonbool(var);
- return add_man_viewer_cmd(name, subkey - name, value);
+ return add_man_viewer_cmd(name, namelen, value);
}
return 0;
@@ -258,7 +257,7 @@ static int add_man_viewer_info(const char *var, const char *value)
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)
@@ -278,7 +277,7 @@ static int git_help_config(const char *var, const char *value, void *cb)
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);
@@ -288,6 +287,10 @@ static struct cmdnames main_cmds, other_cmds;
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);
}
@@ -306,7 +309,7 @@ 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);
@@ -318,16 +321,18 @@ 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);
@@ -377,8 +382,10 @@ static void show_info_page(const char *git_cmd)
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, "://")) {
@@ -389,6 +396,7 @@ static void get_html_page_path(struct strbuf *page_path, const char *page)
strbuf_init(page_path, 0);
strbuf_addf(page_path, "%s/%s.html", html_path, page);
+ free(to_free);
}
/*
@@ -413,12 +421,43 @@ static void show_html_page(const char *git_cmd)
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);
@@ -427,8 +466,18 @@ int cmd_help(int argc, const char **argv, const char *prefix)
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;
}
@@ -450,6 +499,7 @@ int cmd_help(int argc, const char **argv, const char *prefix)
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;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-09 12:31:23 +0000