Add -s|--timeout-success option to env script builtin

The semantics is equivalent to the --success option we already have in the
timeout builtin.

1 files changed, 5 insertions, 4 deletions

diff --git a/libbuild2/script/parser.hxx b/libbuild2/script/parser.hxx
index cadf909..795ce4e 100644
--- a/libbuild2/script/parser.hxx
+++ b/libbuild2/script/parser.hxx
@@ -163,14 +163,15 @@ namespace build2
       pre_parse_line_start (token&, token_type&, lexer_mode);
 
       // Parse the env pseudo-builtin arguments up to the program name. Return
-      // the program execution timeout, CWD, the list of the variables that
-      // should be unset ("name") and/or set ("name=value") in the command
-      // environment, and the token/type that starts the program name. Note
-      // that the variable unsets come first, if present.
+      // the program execution timeout and its success flag, CWD, the list of
+      // the variables that should be unset ("name") and/or set ("name=value")
+      // in the command environment, and the token/type that starts the
+      // program name. Note that the variable unsets come first, if present.
       //
       struct parsed_env
       {
         optional<duration> timeout;
+        bool               timeout_success = false;
         optional<dir_path> cwd;
         environment_vars   variables;
       };