Add a CLI command to output docs on CLI commands to a file

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@72937 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/cli.c

@@ -972,6 +972,10 @@ static struct ast_cli_entry cli_module_unload_deprecated = NEW_CLI(handle_unload
 
 static char *handle_help(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
 
+#ifdef AST_DEVMODE
+static char *handle_core_dump_clidocs(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
+#endif
+
 static struct ast_cli_entry cli_cli[] = {
 	/* Deprecated, but preferred command is now consolidated (and already has a deprecated command for it). */
 	NEW_CLI(handle_nodebugchan_deprecated, "Disable debugging on channel(s)"),
@@ -1010,6 +1014,10 @@ static struct ast_cli_entry cli_cli[] = {
 	{ { "soft", "hangup", NULL },
 	handle_softhangup, "Request a hangup on a given channel",
 	softhangup_help, complete_ch_3 },
+
+#ifdef AST_DEVMODE
+	NEW_CLI(handle_core_dump_clidocs, "Dump CLI command documentation in LaTeX format"),
+#endif
 };
 
 /*!
@@ -1450,6 +1458,65 @@ static char *handle_help(struct ast_cli_entry *e, int cmd, struct ast_cli_args *
 	return RESULT_SUCCESS;
 }
 
+#ifdef AST_DEVMODE
+static char *handle_core_dump_clidocs(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
+{
+	struct ast_cli_entry *cli;
+	FILE *f;
+	const char *fn = "/tmp/ast_cli_commands.tex";
+	struct cli_iterator i = { NULL, NULL};
+
+	switch (cmd) {
+	case CLI_INIT:
+		e->command = "core dump clidocs";
+		e->usage =
+			"Usage: core dump clidocs\n"
+			"       Dump CLI command documentation to /tmp/ast_cli_commands.tex.\n";
+		return NULL;
+	case CLI_GENERATE:
+		return NULL;
+	}
+
+	if (a->argc != e->args)
+		return CLI_SHOWUSAGE;
+
+	if (!(f = fopen(fn, "w+"))) {
+		ast_cli(a->fd, "Unable to open %s for writing!\n", fn);
+		return CLI_FAILURE;
+	}
+
+	fprintf(f, "%% This file is automatically generated by the \"core dump clidocs\" CLI command.  Any manual edits will be lost.\n");
+
+	AST_LIST_LOCK(&helpers);
+	while ((cli = cli_next(&i))) {
+		/* Hide commands that start with '_' */
+		if (cli->_full_cmd[0] == '_')
+			continue;
+		/* Hide commands that are marked as deprecated. */
+		if (cli->deprecated)
+			continue;
+
+		fprintf(f, "\\section{%s}\n"
+				"\\subsection{Summary}\n"
+				"\\begin{verbatim}\n"
+				"%s\n"
+				"\\end{verbatim}\n"
+				"\\subsection{Usage}\n"
+				"\\begin{verbatim}\n"
+				"%s\n"
+				"\\end{verbatim}\n\n\n", 
+				cli->_full_cmd, cli->summary, cli->usage);
+	}
+	AST_LIST_UNLOCK(&helpers);
+
+	fclose(f);
+
+	ast_cli(a->fd, "Documentation has been dumped to %s\n", fn);
+
+	return CLI_SUCCESS;
+}
+#endif /* AST_DEVMODE */
+
 static char *parse_args(const char *s, int *argc, char *argv[], int max, int *trailingwhitespace)
 {
 	char *dup, *cur;