Strip the brake line at end of file

sailfish-compiler/src/compiler.rs

@@ -9,7 +9,7 @@ use crate::optimizer::Optimizer;
 use crate::parser::Parser;
 use crate::resolver::Resolver;
 use crate::translator::{Translator, TranslatedSource};
-use crate::util::rustfmt_block;
+use crate::util::{read_to_string, rustfmt_block};
 
 #[derive(Default)]
 pub struct Compiler {
@@ -28,7 +28,7 @@ impl Compiler {
     fn translate_file_contents(&self, input: &Path) -> Result<TranslatedSource, Error> {
         let parser = Parser::new().delimiter(self.config.delimiter);
         let translator = Translator::new().escape(self.config.escape);
-        let content = fs::read_to_string(input)
+        let content = read_to_string(input)
             .chain_err(|| format!("Failed to open template file: {:?}", input))?;
 
         let stream = parser.parse(&*content);

sailfish-compiler/src/util.rs

@@ -1,6 +1,21 @@
 use std::io::{self, Write};
+use std::path::Path;
 use std::process::{Command, Stdio};
 
+pub fn read_to_string(path: &Path) -> io::Result<String> {
+    let mut content = std::fs::read_to_string(path)?;
+
+    // strip break line at file end
+    if content.ends_with('\n') {
+        content.truncate(content.len() - 1);
+        if content.ends_with('\r') {
+            content.truncate(content.len() - 1);
+        }
+    }
+
+    Ok(content)
+}
+
 /// Format block expression using `rustfmt` command
 pub fn rustfmt_block(source: &str) -> io::Result<String> {
     let mut new_source = String::with_capacity(source.len() + 11);