Changeset 2096 in kBuild

Timestamp:

Nov 20, 2008 2:18:06 AM (16 years ago)

Author:

bird

Message:

kmk: if exists some-file

File:

• trunk/src/kmk/expreval.c (modified) (2 diffs)

trunk/src/kmk/expreval.c

@@ -877 +877 @@
 
 /**
+ * Does file(/dir/whatever) exist, unary.
+ *
+ * @returns Status code.
+ * @param   pThis       The instance.
+ */
+static EXPRRET expr_op_exists(PEXPR pThis)
+{
+    PEXPRVAR            pVar = &pThis->aVars[pThis->iVar];
+    struct stat         st;
+
+    expr_var_make_simple_string(pVar);
+    expr_var_assign_bool(pVar, stat(pVar->uVal.psz, &st) == 0);
+
+    return kExprRet_Ok;
+}
+
+
+/**
  * Is target defined, unary.
  *
@@ -1578 +1596 @@
     /*        Name, iPrecedence,  cArgs,    pfn    */
     EXPR_OP("defined",     90,      1,    expr_op_defined),
+    EXPR_OP("exists",      90,      1,    expr_op_exists),
     EXPR_OP("target",      90,      1,    expr_op_target),
     EXPR_OP("bool",        90,      1,    expr_op_bool),