Related to #181, also ignore removal of the main file when auto-reloading

src/mainwin.cc

@@ -1106,7 +1106,10 @@ bool MainWindow::fileChangedOnDisk()
 	if (!this->fileName.isEmpty()) {
 		struct stat st;
 		memset(&st, 0, sizeof(struct stat));
-		stat(this->fileName.toLocal8Bit(), &st);
+		bool valid = (stat(this->fileName.toLocal8Bit(), &st) == 0);
+		// If file isn't there, just return and use current editor text
+		if (!valid) return false;
+
 		std::string newid = str(boost::format("%x.%x") % st.st_mtime % st.st_size);
 
 		if (newid != this->autoReloadId) {

testdata/modulecache-tests/README.txt

@@ -118,7 +118,9 @@ o ./cascade.sh
 o Open cascadetest.scad
 o Turn on Automatic Reload and Compile
 o Verify that the 4 objects render correctly
-o rm cascade-*.scad
+o rm cascadetest.scad
+o Verify that no rerendering was triggered (the 4 objects are still there)
+o rm cascade*.scad
 o Verify that no rerendering was triggered (the 4 objects are still there)
 o ./cascade2.sh
 o Verify that everything reloads at once without flickering

testdata/modulecache-tests/cascade.sh

@@ -1,6 +1,7 @@
 #!/bin/bash
 
-rm cascade-*.scad
+rm cascade*.scad
+echo "include <cascade-A.scad> include <cascade-B.scad> use <cascade-C.scad> use <cascade-D.scad> A(); translate([11,0,0]) B(); translate([22,0,0]) C(); translate([33,0,0]) D();" > cascadetest.scad
 sleep 0.05
 echo "module A() { sphere(5); }" > cascade-A.scad
 sleep 0.05

testdata/modulecache-tests/cascade2.sh

@@ -1,6 +1,7 @@
 #!/bin/bash
 
 rm cascade-*.scad
+echo "include <cascade-A.scad> include <cascade-B.scad> use <cascade-C.scad> use <cascade-D.scad> A(); translate([11,0,0]) B(); translate([22,0,0]) C(); translate([33,0,0]) D();" > cascadetest.scad
 sleep 0.1
 echo "module A() { sphere(6); }" > cascade-A.scad
 sleep 0.1

testdata/modulecache-tests/cascadetest.scad

@@ -1,9 +1 @@
-include <cascade-A.scad>
-include <cascade-B.scad>
-use <cascade-C.scad>
-use <cascade-D.scad>
-
-A();
-translate([11,0,0]) B();
-translate([22,0,0]) C();
-translate([33,0,0]) D();
+include <cascade-A.scad> include <cascade-B.scad> use <cascade-C.scad> use <cascade-D.scad> A(); translate([11,0,0]) B(); translate([22,0,0]) C(); translate([33,0,0]) D();