1 files changed, 0 insertions, 537 deletions
diff --git a/third_party/git/builtin/help.c b/third_party/git/builtin/help.c
deleted file mode 100644
index e5590d7787..0000000000
--- a/third_party/git/builtin/help.c
+++ /dev/null
@@ -1,537 +0,0 @@
-/*
- * Builtin help command
- */
-#include "cache.h"
-#include "config.h"
-#include "builtin.h"
-#include "exec-cmd.h"
-#include "parse-options.h"
-#include "run-command.h"
-#include "column.h"
-#include "help.h"
-#include "alias.h"
-
-#ifndef DEFAULT_HELP_FORMAT
-#define DEFAULT_HELP_FORMAT "man"
-#endif
-
-static struct man_viewer_list {
-	struct man_viewer_list *next;
-	char name[FLEX_ARRAY];
-} *man_viewer_list;
-
-static struct man_viewer_info_list {
-	struct man_viewer_info_list *next;
-	const char *info;
-	char name[FLEX_ARRAY];
-} *man_viewer_info_list;
-
-enum help_format {
-	HELP_FORMAT_NONE,
-	HELP_FORMAT_MAN,
-	HELP_FORMAT_INFO,
-	HELP_FORMAT_WEB
-};
-
-static const char *html_path;
-
-static int show_all = 0;
-static int show_guides = 0;
-static int show_config;
-static int verbose = 1;
-static unsigned int colopts;
-static enum help_format help_format = HELP_FORMAT_NONE;
-static int exclude_guides;
-static struct option builtin_help_options[] = {
-	OPT_BOOL('a', "all", &show_all, N_("print all available commands")),
-	OPT_HIDDEN_BOOL(0, "exclude-guides", &exclude_guides, N_("exclude guides")),
-	OPT_BOOL('g', "guides", &show_guides, N_("print list of useful guides")),
-	OPT_BOOL('c', "config", &show_config, N_("print all configuration variable names")),
-	OPT_SET_INT_F(0, "config-for-completion", &show_config, "", 2, PARSE_OPT_HIDDEN),
-	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),
-	OPT_SET_INT('i', "info", &help_format, N_("show info page"),
-			HELP_FORMAT_INFO),
-	OPT__VERBOSE(&verbose, N_("print command description")),
-	OPT_END(),
-};
-
-static const char * const builtin_help_usage[] = {
-	N_("git help [--all] [--guides] [--man | --web | --info] [<command>]"),
-	NULL
-};
-
-static enum help_format parse_help_format(const char *format)
-{
-	if (!strcmp(format, "man"))
-		return HELP_FORMAT_MAN;
-	if (!strcmp(format, "info"))
-		return HELP_FORMAT_INFO;
-	if (!strcmp(format, "web") || !strcmp(format, "html"))
-		return HELP_FORMAT_WEB;
-	/*
-	 * Please update _git_config() in git-completion.bash when you
-	 * add new help formats.
-	 */
-	die(_("unrecognized help format '%s'"), format);
-}
-
-static const char *get_man_viewer_info(const char *name)
-{
-	struct man_viewer_info_list *viewer;
-
-	for (viewer = man_viewer_info_list; viewer; viewer = viewer->next)
-	{
-		if (!strcasecmp(name, viewer->name))
-			return viewer->info;
-	}
-	return NULL;
-}
-
-static int check_emacsclient_version(void)
-{
-	struct strbuf buffer = STRBUF_INIT;
-	struct child_process ec_process = CHILD_PROCESS_INIT;
-	const char *argv_ec[] = { "emacsclient", "--version", NULL };
-	int version;
-
-	/* emacsclient prints its version number on stderr */
-	ec_process.argv = argv_ec;
-	ec_process.err = -1;
-	ec_process.stdout_to_stderr = 1;
-	if (start_command(&ec_process))
-		return error(_("Failed to start emacsclient."));
-
-	strbuf_read(&buffer, ec_process.err, 20);
-	close(ec_process.err);
-
-	/*
-	 * Don't bother checking return value, because "emacsclient --version"
-	 * seems to always exits with code 1.
-	 */
-	finish_command(&ec_process);
-
-	if (!starts_with(buffer.buf, "emacsclient")) {
-		strbuf_release(&buffer);
-		return error(_("Failed to parse emacsclient version."));
-	}
-
-	strbuf_remove(&buffer, 0, strlen("emacsclient"));
-	version = atoi(buffer.buf);
-
-	if (version < 22) {
-		strbuf_release(&buffer);
-		return error(_("emacsclient version '%d' too old (< 22)."),
-			version);
-	}
-
-	strbuf_release(&buffer);
-	return 0;
-}
-
-static void exec_woman_emacs(const char *path, const char *page)
-{
-	if (!check_emacsclient_version()) {
-		/* This works only with emacsclient version >= 22. */
-		struct strbuf man_page = STRBUF_INIT;
-
-		if (!path)
-			path = "emacsclient";
-		strbuf_addf(&man_page, "(woman \"%s\")", page);
-		execlp(path, "emacsclient", "-e", man_page.buf, (char *)NULL);
-		warning_errno(_("failed to exec '%s'"), path);
-		strbuf_release(&man_page);
-	}
-}
-
-static void exec_man_konqueror(const char *path, const char *page)
-{
-	const char *display = getenv("DISPLAY");
-	if (display && *display) {
-		struct strbuf man_page = STRBUF_INIT;
-		const char *filename = "kfmclient";
-
-		/* It's simpler to launch konqueror using kfmclient. */
-		if (path) {
-			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);
-		execlp(path, filename, "newTab", man_page.buf, (char *)NULL);
-		warning_errno(_("failed to exec '%s'"), path);
-		strbuf_release(&man_page);
-	}
-}
-
-static void exec_man_man(const char *path, const char *page)
-{
-	if (!path)
-		path = "man";
-	execlp(path, "man", page, (char *)NULL);
-	warning_errno(_("failed to exec '%s'"), path);
-}
-
-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(SHELL_PATH, SHELL_PATH, "-c", shell_cmd.buf, (char *)NULL);
-	warning(_("failed to exec '%s'"), cmd);
-	strbuf_release(&shell_cmd);
-}
-
-static void add_man_viewer(const char *name)
-{
-	struct man_viewer_list **p = &man_viewer_list;
-
-	while (*p)
-		p = &((*p)->next);
-	FLEX_ALLOC_STR(*p, name, name);
-}
-
-static int supported_man_viewer(const char *name, size_t len)
-{
-	return (!strncasecmp("man", name, len) ||
-		!strncasecmp("woman", name, len) ||
-		!strncasecmp("konqueror", name, len));
-}
-
-static void do_add_man_viewer_info(const char *name,
-				   size_t len,
-				   const char *value)
-{
-	struct man_viewer_info_list *new_man_viewer;
-	FLEX_ALLOC_MEM(new_man_viewer, name, name, len);
-	new_man_viewer->info = xstrdup(value);
-	new_man_viewer->next = man_viewer_info_list;
-	man_viewer_info_list = new_man_viewer;
-}
-
-static int add_man_viewer_path(const char *name,
-			       size_t len,
-			       const char *value)
-{
-	if (supported_man_viewer(name, len))
-		do_add_man_viewer_info(name, len, value);
-	else
-		warning(_("'%s': path for unsupported man viewer.\n"
-			  "Please consider using 'man.<tool>.cmd' instead."),
-			name);
-
-	return 0;
-}
-
-static int add_man_viewer_cmd(const char *name,
-			      size_t len,
-			      const char *value)
-{
-	if (supported_man_viewer(name, len))
-		warning(_("'%s': cmd for supported man viewer.\n"
-			  "Please consider using 'man.<tool>.path' instead."),
-			name);
-	else
-		do_add_man_viewer_info(name, len, value);
-
-	return 0;
-}
-
-static int add_man_viewer_info(const char *var, const char *value)
-{
-	const char *name, *subkey;
-	int namelen;
-
-	if (parse_config_key(var, "man", &name, &namelen, &subkey) < 0 || !name)
-		return 0;
-
-	if (!strcmp(subkey, "path")) {
-		if (!value)
-			return config_error_nonbool(var);
-		return add_man_viewer_path(name, namelen, value);
-	}
-	if (!strcmp(subkey, "cmd")) {
-		if (!value)
-			return config_error_nonbool(var);
-		return add_man_viewer_cmd(name, namelen, value);
-	}
-
-	return 0;
-}
-
-static int git_help_config(const char *var, const char *value, void *cb)
-{
-	if (starts_with(var, "column."))
-		return git_column_config(var, value, "help", &colopts);
-	if (!strcmp(var, "help.format")) {
-		if (!value)
-			return config_error_nonbool(var);
-		help_format = parse_help_format(value);
-		return 0;
-	}
-	if (!strcmp(var, "help.htmlpath")) {
-		if (!value)
-			return config_error_nonbool(var);
-		html_path = xstrdup(value);
-		return 0;
-	}
-	if (!strcmp(var, "man.viewer")) {
-		if (!value)
-			return config_error_nonbool(var);
-		add_man_viewer(value);
-		return 0;
-	}
-	if (starts_with(var, "man."))
-		return add_man_viewer_info(var, value);
-
-	return git_default_config(var, value, cb);
-}
-
-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);
-}
-
-static const char *cmd_to_page(const char *git_cmd)
-{
-	if (!git_cmd)
-		return "git";
-	else if (starts_with(git_cmd, "git"))
-		return git_cmd;
-	else if (is_git_command(git_cmd))
-		return xstrfmt("git-%s", git_cmd);
-	else
-		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, 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 exec_viewer(const char *name, const char *page)
-{
-	const char *info = get_man_viewer_info(name);
-
-	if (!strcasecmp(name, "man"))
-		exec_man_man(info, page);
-	else if (!strcasecmp(name, "woman"))
-		exec_woman_emacs(info, page);
-	else if (!strcasecmp(name, "konqueror"))
-		exec_man_konqueror(info, page);
-	else if (info)
-		exec_man_cmd(info, page);
-	else
-		warning(_("'%s': unknown man viewer."), name);
-}
-
-static void show_man_page(const char *git_cmd)
-{
-	struct man_viewer_list *viewer;
-	const char *page = cmd_to_page(git_cmd);
-	const char *fallback = getenv("GIT_MAN_VIEWER");
-
-	setup_man_path();
-	for (viewer = man_viewer_list; viewer; viewer = viewer->next)
-	{
-		exec_viewer(viewer->name, page); /* will return when unable */
-	}
-	if (fallback)
-		exec_viewer(fallback, page);
-	exec_viewer("man", page);
-	die(_("no man viewer handled the request"));
-}
-
-static void show_info_page(const char *git_cmd)
-{
-	const char *page = cmd_to_page(git_cmd);
-	setenv("INFOPATH", system_path(GIT_INFO_PATH), 1);
-	execlp("info", "info", "gitman", page, (char *)NULL);
-	die(_("no info viewer handled the request"));
-}
-
-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 = to_free = system_path(GIT_HTML_PATH);
-
-	/* Check that we have a git documentation directory. */
-	if (!strstr(html_path, "://")) {
-		if (stat(mkpath("%s/git.html", html_path), &st)
-		    || !S_ISREG(st.st_mode))
-			die("'%s': not a documentation directory.", html_path);
-	}
-
-	strbuf_init(page_path, 0);
-	strbuf_addf(page_path, "%s/%s.html", html_path, page);
-	free(to_free);
-}
-
-static void open_html(const char *path)
-{
-	execl_git_cmd("web--browse", "-c", "help.browser", path, (char *)NULL);
-}
-
-static void show_html_page(const char *git_cmd)
-{
-	const char *page = cmd_to_page(git_cmd);
-	struct strbuf page_path; /* it leaks but we exec bellow */
-
-	get_html_page_path(&page_path, page);
-
-	open_html(page_path.buf);
-}
-
-static const char *check_git_cmd(const char* cmd)
-{
-	char *alias;
-
-	if (is_git_command(cmd))
-		return cmd;
-
-	alias = alias_lookup(cmd);
-	if (alias) {
-		const char **argv;
-		int count;
-
-		/*
-		 * handle_builtin() in git.c rewrites "git cmd --help"
-		 * to "git help --exclude-guides cmd", so we can use
-		 * exclude_guides to distinguish "git cmd --help" from
-		 * "git help cmd". In the latter case, or if cmd is an
-		 * alias for a shell command, just print the alias
-		 * definition.
-		 */
-		if (!exclude_guides || alias[0] == '!') {
-			printf_ln(_("'%s' is aliased to '%s'"), cmd, alias);
-			free(alias);
-			exit(0);
-		}
-		/*
-		 * Otherwise, we pretend that the command was "git
-		 * word0 --help". We use split_cmdline() to get the
-		 * first word of the alias, to ensure that we use the
-		 * same rules as when the alias is actually
-		 * used. split_cmdline() modifies alias in-place.
-		 */
-		fprintf_ln(stderr, _("'%s' is aliased to '%s'"), cmd, alias);
-		count = split_cmdline(alias, &argv);
-		if (count < 0)
-			die(_("bad alias.%s string: %s"), cmd,
-			    split_cmdline_strerror(count));
-		free(argv);
-		UNLEAK(alias);
-		return alias;
-	}
-
-	if (exclude_guides)
-		return help_unknown_cmd(cmd);
-
-	return cmd;
-}
-
-int cmd_help(int argc, const char **argv, const char *prefix)
-{
-	int nongit;
-	enum help_format parsed_help_format;
-
-	argc = parse_options(argc, argv, prefix, builtin_help_options,
-			builtin_help_usage, 0);
-	parsed_help_format = help_format;
-
-	if (show_all) {
-		git_config(git_help_config, NULL);
-		if (verbose) {
-			setup_pager();
-			list_all_cmds_help();
-			return 0;
-		}
-		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_config) {
-		int for_human = show_config == 1;
-
-		if (!for_human) {
-			list_config_help(for_human);
-			return 0;
-		}
-		setup_pager();
-		list_config_help(for_human);
-		printf("\n%s\n", _("'git help config' for more information"));
-		return 0;
-	}
-
-	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;
-	}
-
-	if (!argv[0]) {
-		printf(_("usage: %s%s"), _(git_usage_string), "\n\n");
-		list_common_cmds_help();
-		printf("\n%s\n", _(git_more_info_string));
-		return 0;
-	}
-
-	setup_git_directory_gently(&nongit);
-	git_config(git_help_config, NULL);
-
-	if (parsed_help_format != HELP_FORMAT_NONE)
-		help_format = parsed_help_format;
-	if (help_format == HELP_FORMAT_NONE)
-		help_format = parse_help_format(DEFAULT_HELP_FORMAT);
-
-	argv[0] = check_git_cmd(argv[0]);
-
-	switch (help_format) {
-	case HELP_FORMAT_NONE:
-	case HELP_FORMAT_MAN:
-		show_man_page(argv[0]);
-		break;
-	case HELP_FORMAT_INFO:
-		show_info_page(argv[0]);
-		break;
-	case HELP_FORMAT_WEB:
-		show_html_page(argv[0]);
-		break;
-	}
-
-	return 0;
-}