Move colours module into output

This commit moves the colours module to be a sub-module of the output one.
This makes sense because finding which colour a certain file should be is only
done during output, and (I think) the only places that the `Colours` struct's
fields are ever queried is from the output module.

The only casualty was that the `file_colour` from the filetype module had to
be moved, as determining colours is no longer part of that module - only
determining filetype is. So it now reflects its name!

src/filetype.rs

@@ -1,31 +1,7 @@
-use ansi_term::Style;
-
 use file::File;
-use colours::Colours;
-
-
-pub fn file_colour(colours: &Colours, file: &File) -> Style {
-    match file {
-        f if f.is_directory()        => colours.filetypes.directory,
-        f if f.is_executable_file()  => colours.filetypes.executable,
-        f if f.is_link()             => colours.filetypes.symlink,
-        f if !f.is_file()            => colours.filetypes.special,
-        f if f.is_immediate()        => colours.filetypes.immediate,
-        f if f.is_image()            => colours.filetypes.image,
-        f if f.is_video()            => colours.filetypes.video,
-        f if f.is_music()            => colours.filetypes.music,
-        f if f.is_lossless()         => colours.filetypes.lossless,
-        f if f.is_crypto()           => colours.filetypes.crypto,
-        f if f.is_document()         => colours.filetypes.document,
-        f if f.is_compressed()       => colours.filetypes.compressed,
-        f if f.is_temp()             => colours.filetypes.temp,
-        f if f.is_compiled()         => colours.filetypes.compiled,
-        _                            => colours.filetypes.normal,
-    }
-}
 
 
-trait FileTypes {
+pub trait FileTypes {
     fn is_immediate(&self) -> bool;
     fn is_image(&self) -> bool;
     fn is_video(&self) -> bool;

src/main.rs

@@ -26,7 +26,6 @@ use dir::Dir;
 use file::File;
 use options::{Options, View};
 
-mod colours;
 mod dir;
 mod feature;
 mod file;

src/options.rs

@@ -7,10 +7,10 @@ use std::os::unix::fs::MetadataExt;
 use getopts;
 use natord;
 
-use colours::Colours;
 use feature::xattr;
 use file::File;
 use output::{Grid, Details, GridDetails, Lines};
+use output::Colours;
 use output::column::{Columns, TimeTypes, SizeFormat};
 use term::dimensions;
 

src/output/details.rs

@@ -118,12 +118,12 @@ use std::string::ToString;
 use std::ops::Add;
 use std::iter::repeat;
 
-use colours::Colours;
 use dir::Dir;
 use feature::xattr::{Attribute, FileAttributes};
 use file::fields as f;
 use file::File;
 use options::{FileFilter, RecurseOptions};
+use output::colours::Colours;
 use output::column::{Alignment, Column, Columns, SizeFormat};
 use output::cell::{TextCell, DisplayWidth};
 

src/output/grid.rs

@@ -1,9 +1,9 @@
-use colours::Colours;
+use term_grid as grid;
+
 use file::File;
-use filetype::file_colour;
 use output::DisplayWidth;
-
-use term_grid as grid;
+use output::colours::Colours;
+use super::file_colour;
 
 
 #[derive(PartialEq, Debug, Copy, Clone)]

src/output/lines.rs

@@ -1,9 +1,9 @@
-use colours::Colours;
-use file::File;
-
 use ansi_term::ANSIStrings;
 
+use file::File;
+
 use super::filename;
+use super::colours::Colours;
 
 
 #[derive(Clone, Copy, Debug, PartialEq)]

src/output/mod.rs

@@ -1,14 +1,13 @@
 use ansi_term::Style;
 
-use colours::Colours;
 use file::File;
-use filetype::file_colour;
 
 pub use self::cell::{TextCell, TextCellContents, DisplayWidth};
+pub use self::colours::Colours;
 pub use self::details::Details;
+pub use self::grid_details::GridDetails;
 pub use self::grid::Grid;
 pub use self::lines::Lines;
-pub use self::grid_details::GridDetails;
 
 mod grid;
 pub mod details;
@@ -16,7 +15,7 @@ mod lines;
 mod grid_details;
 pub mod column;
 mod cell;
-
+mod colours;
 
 pub fn filename(file: File, colours: &Colours, links: bool) -> TextCellContents {
     if links && file.is_link() {
@@ -49,3 +48,25 @@ fn symlink_filename(file: File, colours: &Colours) -> TextCellContents {
         ].into(),
     }
 }
+
+pub fn file_colour(colours: &Colours, file: &File) -> Style {
+    use filetype::FileTypes;
+
+    match file {
+        f if f.is_directory()        => colours.filetypes.directory,
+        f if f.is_executable_file()  => colours.filetypes.executable,
+        f if f.is_link()             => colours.filetypes.symlink,
+        f if !f.is_file()            => colours.filetypes.special,
+        f if f.is_immediate()        => colours.filetypes.immediate,
+        f if f.is_image()            => colours.filetypes.image,
+        f if f.is_video()            => colours.filetypes.video,
+        f if f.is_music()            => colours.filetypes.music,
+        f if f.is_lossless()         => colours.filetypes.lossless,
+        f if f.is_crypto()           => colours.filetypes.crypto,
+        f if f.is_document()         => colours.filetypes.document,
+        f if f.is_compressed()       => colours.filetypes.compressed,
+        f if f.is_temp()             => colours.filetypes.temp,
+        f if f.is_compiled()         => colours.filetypes.compiled,
+        _                            => colours.filetypes.normal,
+    }
+}