Change the writemode to overwrite

Cargo.lock

@@ -1,6 +1,6 @@
 [root]
 name = "rustfmt-nightly"
-version = "0.1.9"
+version = "0.2.0"
 dependencies = [
  "diff 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 
 name = "rustfmt-nightly"
-version = "0.1.9"
+version = "0.2.0"
 authors = ["Nicholas Cameron <ncameron@mozilla.com>", "The Rustfmt developers"]
 description = "Tool to find and fix Rust formatting issues"
 repository = "https://github.com/rust-lang-nursery/rustfmt"

Configurations.md

@@ -2120,5 +2120,5 @@ See also: [`indent_match_arms`](#indent_match_arms), [`match_block_trailing_comm
 
 What Write Mode to use when none is supplied: Replace, Overwrite, Display, Diff, Coverage
 
-- **Default value**: `"Replace"`
+- **Default value**: `"Overwrite"`
 - **Possible values**: `"Checkstyle"`, `"Coverage"`, `"Diff"`, `"Display"`, `"Overwrite"`, `"Plain"`, `"Replace"`

README.md

@@ -90,11 +90,12 @@ read data from stdin. Alternatively, you can use `cargo fmt` to format all
 binary and library targets of your crate.
 
 You'll probably want to specify the write mode. Currently, there are modes for
-diff, replace, overwrite, display, coverage, and checkstyle.
+`diff`, `replace`, `overwrite`, `display`, `coverage`, `checkstyle`, and `plain`.
 
-* `replace` Is the default and overwrites the original files after creating backups of the files.
-* `overwrite` Overwrites the original files _without_ creating backups.
+* `overwrite` Is the default and overwrites the original files _without_ creating backups.
+* `replace` Overwrites the original files after creating backups of the files.
 * `display` Will print the formatted files to stdout.
+* `plain` Also writes to stdout, but with no metadata.
 * `diff` Will print a diff between the original files and formatted files to stdout.
          Will also exit with an error code if there are any differences.
 * `checkstyle` Will output the lines that need to be corrected as a checkstyle XML file,
@@ -103,7 +104,7 @@ diff, replace, overwrite, display, coverage, and checkstyle.
 The write mode can be set by passing the `--write-mode` flag on
 the command line. For example `rustfmt --write-mode=display src/filename.rs`
 
-`cargo fmt` uses `--write-mode=replace` by default.
+`cargo fmt` uses `--write-mode=overwrite` by default.
 
 If you want to restrict reformatting to specific sets of lines, you can
 use the `--file-lines` option. Its argument is a JSON array of objects

src/bin/rustfmt.rs

@@ -78,11 +78,6 @@ impl CliOptions {
                     format!("Invalid write-mode: {}", write_mode),
                 ));
             }
-        } else if !matches.opt_present("no-warn-write-mode") {
-            println!(
-                "Warning: the default write-mode for Rustfmt will soon change to overwrite \
-                 - this will not leave backups of changed files."
-            );
         }
 
         if let Some(ref file_lines) = matches.opt_str("file-lines") {
@@ -120,17 +115,11 @@ fn make_opts() -> Options {
     opts.optflag("h", "help", "show this message");
     opts.optflag("V", "version", "show version information");
     opts.optflag("v", "verbose", "print verbose output");
-    // Suppress warning. Remove this option after the default write mode changed to overwrite.
-    opts.optflag(
-        "w",
-        "no-warn-write-mode",
-        "inhibit warning about write-mode change",
-    );
     opts.optopt(
         "",
         "write-mode",
-        "mode to write in (not usable when piping from stdin)",
-        "[replace|overwrite|display|diff|coverage|checkstyle]",
+        "how to write output (not usable when piping from stdin)",
+        "[replace|overwrite|display|plain|diff|coverage|checkstyle]",
     );
     opts.optflag("", "skip-children", "don't reformat child modules");
 

src/config.rs

@@ -596,8 +596,9 @@ create_config! {
     spaces_within_square_brackets: bool, false, "Put spaces within non-empty square brackets";
     spaces_within_parens: bool, false, "Put spaces within non-empty parentheses";
     use_try_shorthand: bool, false, "Replace uses of the try! macro by the ? shorthand";
-    write_mode: WriteMode, WriteMode::Replace,
-        "What Write Mode to use when none is supplied: Replace, Overwrite, Display, Diff, Coverage";
+    write_mode: WriteMode, WriteMode::Overwrite,
+        "What Write Mode to use when none is supplied: \
+         Replace, Overwrite, Display, Plain, Diff, Coverage";
     condense_wildcard_suffixes: bool, false, "Replace strings of _ wildcards by a single .. in \
                                               tuple patterns";
     combine_control_expr: bool, true, "Combine control expressions with funciton calls.";