Add '--debug' flag to print justfile with evaluated expressions and

variables

notes

@@ -3,7 +3,6 @@ notes
 
 - integration testing
   . get value of variable --evaluate --variable
-  . --info that prints whole justfile
   . run app with command line options and test full output (stderr and stdout)
   . exercise all features and all command line options
   . underline problem token in error messages

src/app.rs

@@ -28,6 +28,9 @@ pub fn app() {
          .short("l")
          .long("list")
          .help("Lists available recipes"))
+    .arg(Arg::with_name("debug")
+         .long("debug")
+         .help("Prints the justfile with debugging information, such as evaluated expression and assignment"))
     .arg(Arg::with_name("show")
          .short("s")
          .long("show")
@@ -96,6 +99,11 @@ pub fn app() {
 
   let justfile = super::parse(&text).unwrap_or_else(|error| die!("{}", error));
 
+  if matches.is_present("debug") {
+    println!("{:#}", justfile);
+    process::exit(0);
+  }
+
   if matches.is_present("list") {
     if justfile.count() == 0 {
       warn!("Justfile contains no recipes");

src/lib.rs

@@ -644,7 +644,7 @@ impl<'a> Display for Justfile<'a> {
       }
       items -= 1;
       if items != 0 {
-        try!(write!(f, "\n"));
+        try!(write!(f, "\n\n"));
       }
     }
     for recipe in self.recipes.values() {
@@ -655,7 +655,7 @@ impl<'a> Display for Justfile<'a> {
       }
       items -= 1;
       if items != 0 {
-        try!(write!(f, "\n"));
+        try!(write!(f, "\n\n"));
       }
     }
     Ok(())

src/tests.rs

@@ -246,8 +246,11 @@ hello a b    c   : x y    z #hello
   2
   3
 ", "bar = foo # \"xx\"
+
 foo = \"xx\" # \"xx\"
+
 goodbye = \"y\" # \"y\"
+
 hello a b c: x y z
     #! blah
     #blarg
@@ -255,8 +258,11 @@ hello a b c: x y z
     1
     2
     3
+
 x:
+
 y:
+
 z:");
 }
 
@@ -269,7 +275,9 @@ b = "1"
 "#, 
 
 r#"a = "0" # "0"
+
 b = "1" # "1"
+
 c = a + b + a + b # "0101""#);
 }
 
@@ -301,7 +309,7 @@ fn missing_eol() {
 
 #[test]
 fn eof_test() {
-  parse_summary("x:\ny:\nz:\na b c: x y z", "a b c: x y z\nx:\ny:\nz:");
+  parse_summary("x:\ny:\nz:\na b c: x y z", "a b c: x y z\n\nx:\n\ny:\n\nz:");
 }
 
 #[test]