Clean up exec_subshell, removing al_list from it

autoload.cpp

@@ -301,7 +301,7 @@ bool autoload_t::locate_file_and_maybe_load_it( const wcstring &cmd, bool really
     /* If we have a script, either built-in or a file source, then run it */
     if (really_load && has_script_source)
     {
-        if( exec_subshell( script_source.c_str(), 0 ) == -1 )
+        if( exec_subshell( script_source) == -1 )
         {
             /*
               Do nothing on failiure

builtin.cpp

@@ -193,7 +193,7 @@ wcstring builtin_help_get( parser_t &parser, const wchar_t *name )
     wcstring out;
     const wcstring name_esc = escape_string(name, 1);
     const wcstring cmd = format_string(L"__fish_print_help %ls", name_esc.c_str());
-	if( exec_subshell2( cmd, lst ) >= 0 )
+	if( exec_subshell( cmd, lst ) >= 0 )
 	{	
 		for( size_t i=0; i<lst.size(); i++ )
 		{

complete.cpp

@@ -270,7 +270,7 @@ static int condition_test( const wchar_t *condition )
 
 	if (test_res == CC_NOT_TESTED )
 	{
-		test_res = exec_subshell( condition, 0 )?CC_FALSE:CC_TRUE;
+		test_res = exec_subshell( condition)?CC_FALSE:CC_TRUE;
 		hash_put( condition_cache, condition, test_res );
 
 		/*
@@ -946,7 +946,7 @@ static void complete_cmd_desc( const wchar_t *cmd, std::vector<completion_t> &co
 	  since apropos is only called once.
 	*/
     wcstring_list_t list;
-	if( exec_subshell2( lookup_cmd, list ) != -1 )
+	if( exec_subshell( lookup_cmd, list ) != -1 )
 	{
 	
 		/*

exec.cpp

@@ -1705,23 +1705,8 @@ void exec( parser_t &parser, job_t *j )
 	
 }
 
-int exec_subshell2( const wcstring &cmd, std::vector<wcstring> &outputs )
-{
-    array_list_t lst;
-    al_init(&lst);
-    int result = exec_subshell(cmd.c_str(), &lst);
-    int i, max = al_get_count(&lst);
-    for (i=0; i < max; i++) {
-        wchar_t *tmp = (wchar_t *)al_get(&lst, i);
-        outputs.push_back(tmp);
-        free(tmp);
-    }
-    al_destroy(&lst);
-    return result;
-}
 
-int exec_subshell( const wchar_t *cmd, 
-				   array_list_t *lst )
+static int exec_subshell_internal( const wcstring &cmd, wcstring_list_t *lst )
 {
 	char *begin, *end;
 	char z=0;
@@ -1730,7 +1715,6 @@ int exec_subshell( const wchar_t *cmd,
 	io_data_t *io_buffer;
 	char sep=0;
 	
-	CHECK( cmd, -1 );
 	const env_var_t ifs = env_get_string(L"IFS");
 
 	if( ! ifs.missing_or_empty() )
@@ -1783,7 +1767,7 @@ int exec_subshell( const wchar_t *cmd,
 					wchar_t *el = str2wcs( begin );
 					if( el )
 					{
-						al_push( lst, el );
+						lst->push_back(el);
 					}
 					else
 					{
@@ -1801,7 +1785,7 @@ int exec_subshell( const wchar_t *cmd,
 				el = str2wcs( begin );
 				if( el )
 				{
-					al_push( lst, el );
+                    lst->push_back(el);
 				}
 				else
 				{
@@ -1817,3 +1801,13 @@ int exec_subshell( const wchar_t *cmd,
 
 	return status;	
 }
+
+int exec_subshell( const wcstring &cmd, std::vector<wcstring> &outputs )
+{
+    return exec_subshell_internal(cmd, &outputs);
+}
+
+__warn_unused int exec_subshell( const wcstring &cmd )
+{
+    return exec_subshell_internal(cmd, NULL);
+}

exec.h

@@ -50,14 +50,12 @@ void exec( parser_t &parser, job_t *j );
   proc_gfet_last_status will not be changed.
 
   \param cmd the command to execute
-  \param l The list to insert output into.If \c l is zero, the output will be discarded.
+  \param outputs The list to insert output into.
 
   \return the status of the last job to exit, or -1 if en error was encountered.
 */
-__warn_unused int exec_subshell( const wchar_t *cmd, 
-								 array_list_t *l );
-
-__warn_unused int exec_subshell2( const wcstring &cmd, std::vector<wcstring> &outputs );
+__warn_unused int exec_subshell(const wcstring &cmd, std::vector<wcstring> &outputs );
+__warn_unused int exec_subshell(const wcstring &cmd );
 
 
 /**

expand.cpp

@@ -1262,7 +1262,7 @@ static int expand_cmdsubst( parser_t &parser, const wcstring &input, std::vector
     
     const wcstring subcmd(paran_begin + 1, paran_end-paran_begin - 1);
     
-	if( exec_subshell2( subcmd, sub_res) == -1 )
+	if( exec_subshell( subcmd, sub_res) == -1 )
 	{
 		parser.error( CMDSUBST_ERROR, -1, L"Unknown error while evaulating command substitution" );
 		return 0;

kill.cpp

@@ -126,7 +126,7 @@ void kill_add( wchar_t *str )
 
 	if (cmd != NULL)
 	{
-		if( exec_subshell( cmd, 0 ) == -1 )
+		if( exec_subshell( cmd) == -1 )
 		{
 			/* 
 			   Do nothing on failiure
@@ -224,7 +224,7 @@ static void kill_check_x_buffer()
 		wcstring cmd = L"xsel -t 500 -b";
 		wcstring new_cut_buffer=L"";
         wcstring_list_t list;
-		if( exec_subshell2( cmd, list ) != -1 )
+		if( exec_subshell( cmd, list ) != -1 )
 		{
 					
 			for( i=0; i<list.size(); i++ )

reader.cpp

@@ -685,7 +685,7 @@ void reader_write_title()
     wcstring_list_t lst;
 
 	proc_push_interactive(0);
-	if( exec_subshell2( title, lst ) != -1 )
+	if( exec_subshell( title, lst ) != -1 )
 	{
 		size_t i;
 		if( lst.size() > 0 )
@@ -715,7 +715,7 @@ static void exec_prompt()
 	{
 		proc_push_interactive( 0 );
 		
-		if( exec_subshell2( data->prompt.c_str(), prompt_list ) == -1 )
+		if( exec_subshell( data->prompt.c_str(), prompt_list ) == -1 )
 		{
 			/* If executing the prompt fails, make sure we at least don't print any junk */
             prompt_list.clear();

wildcard.cpp

@@ -370,7 +370,7 @@ static wchar_t *complete_get_desc_suffix_internal( const wchar_t *suff_orig )
     wcstring_list_t lst;
     wcstring desc;
 	
-	if( exec_subshell2( cmd, lst ) != -1 )
+	if( exec_subshell( cmd, lst ) != -1 )
 	{
 		if( lst.size()>0 )
 		{