Renames format-* command-line arguments to rustfmt-*

The --rustfmt-configuration-file command-line argument automatically activates --rustfmt-bindings.

src/lib.rs

@@ -456,13 +456,16 @@ impl Builder {
             );
         }
 
-        if !self.options.format_bindings {
-            output_vector.push("--format-bindings".into());
+        if !self.options.rustfmt_bindings {
+            output_vector.push("--rustfmt-bindings".into());
         }
 
-        if let Some(path) = self.options.format_configuration_file.as_ref().and_then(
-            |f| f.to_str()) {
-            output_vector.push("--format-configuration-file".into());
+        if let Some(path) = self.options
+            .rustfmt_configuration_file
+            .as_ref()
+            .and_then(|f| f.to_str())
+        {
+            output_vector.push("--rustfmt-configuration-file".into());
             output_vector.push(path.into());
         }
 
@@ -852,15 +855,16 @@ impl Builder {
     }
 
     /// Set whether rustfmt should format the generated bindings.
-    pub fn format_bindings(mut self, doit: bool) -> Self {
-        self.options.format_bindings = doit;
+    pub fn rustfmt_bindings(mut self, doit: bool) -> Self {
+        self.options.rustfmt_bindings = doit;
         self
     }
 
     /// Set the absolute path to the rustfmt configuration file, if None, the standard rustfmt
     /// options are used.
-    pub fn format_configuration_file(mut self, path: Option<PathBuf>) -> Self {
-        self.options.format_configuration_file = path;
+    pub fn rustfmt_configuration_file(mut self, path: Option<PathBuf>) -> Self {
+        self = self.rustfmt_bindings(true);
+        self.options.rustfmt_configuration_file = path;
         self
     }
 
@@ -1125,11 +1129,11 @@ pub struct BindgenOptions {
     rust_features: RustFeatures,
 
     /// Whether rustfmt should format the generated bindings.
-    pub format_bindings: bool,
+    pub rustfmt_bindings: bool,
 
     /// The absolute path to the rustfmt configuration file, if None, the standard rustfmt
     /// options are used.
-    pub format_configuration_file: Option<PathBuf>,
+    pub rustfmt_configuration_file: Option<PathBuf>,
 }
 
 /// TODO(emilio): This is sort of a lie (see the error message that results from
@@ -1214,8 +1218,8 @@ impl Default for BindgenOptions {
             objc_extern_crate: false,
             enable_mangling: true,
             prepend_enum_name: true,
-            format_bindings: true,
-            format_configuration_file: None,
+            rustfmt_bindings: true,
+            rustfmt_configuration_file: None,
         }
     }
 }

src/options.rs

@@ -233,15 +233,15 @@ where
                        Useful when debugging bindgen, using C-Reduce, or when \
                        filing issues. The resulting file will be named \
                        something like `__bindgen.i` or `__bindgen.ii`."),
-            Arg::with_name("format-bindings")
-                .long("format-bindings")
+            Arg::with_name("rustfmt-bindings")
+                .long("rustfmt-bindings")
                 .help("Format the generated bindings with rustfmt. \
                        Rustfmt needs to be in the global PATH."),
-            Arg::with_name("format-configuration-file")
-                .long("format-configuration-file")
+            Arg::with_name("rustfmt-configuration-file")
+                .long("rustfmt-configuration-file")
                 .help("The absolute path to the rustfmt configuration file. \
-                       The configuration file will be used for formatting the bindings \
-                       (when enabled by --format-bindings).")
+                       The configuration file will be used for formatting the bindings. \
+                       Setting this parameter, will automatically set --rustfmt-bindings.")
                 .value_name("path")
                 .takes_value(true)
                 .multiple(false)
@@ -472,25 +472,25 @@ where
         builder.dump_preprocessed_input()?;
     }
 
-    if matches.is_present("format-bindings") {
-        builder = builder.format_bindings(true);
+    if matches.is_present("rustfmt-bindings") {
+        builder = builder.rustfmt_bindings(true);
     }
 
-    if let Some(path_str) = matches.value_of("format-configuration-file") {
+    if let Some(path_str) = matches.value_of("rustfmt-configuration-file") {
         let path = PathBuf::from(path_str);
 
         if !path.is_absolute() {
             return Err(Error::new(ErrorKind::Other,
-                                  "--format-configuration--file needs to be an absolute path!"));
+                                  "--rustfmt-configuration--file needs to be an absolute path!"));
         }
 
         if path.to_str().is_none() {
             return Err(
                 Error::new(ErrorKind::Other,
-                           "--format-configuration-file contains non-valid UTF8 characters."));
+                           "--rustfmt-configuration-file contains non-valid UTF8 characters."));
         }
 
-        builder = builder.format_configuration_file(Some(path));
+        builder = builder.rustfmt_configuration_file(Some(path));
     } 
 
     let verbose = matches.is_present("verbose");