Llewellyn/exa
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Move file-type detection to its own module

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I'd much rather have this separate, as it has the definite potential to
balloon up to a huge size and end up making the other parts of the file
module hard to read. But on the other hand, it meant making a few more
methods public on file... readability over cleanliness, I guess.
This commit is contained in:
Ben S 2014-06-17 09:35:40 +01:00
parent a5e404da55
commit 03ec414dfb
3 changed files with 123 additions and 89 deletions
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1
exa.rs
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@ -13,6 +13,7 @@ pub mod column;
pub mod dir;
pub mod format;
pub mod file;
pub mod filetype;
pub mod unix;
pub mod options;
pub mod sort;

95
file.rs
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@ -1,43 +1,13 @@
use colours::{Plain, Style, Black, Red, Green, Yellow, Blue, Purple, Cyan, Fixed};
use std::io::fs;
use std::io;
use colours::{Plain, Style, Black, Red, Green, Yellow, Blue, Purple, Cyan, Fixed};
use column::{Column, Permissions, FileName, FileSize, User, Group};
use format::{format_metric_bytes, format_IEC_bytes};
use unix::{get_user_name, get_group_name};
use sort::SortPart;
use dir::Dir;
static IMAGE_TYPES: &'static [&'static str] = &[
"png", "jpeg", "jpg", "gif", "bmp", "tiff", "tif",
"ppm", "pgm", "pbm", "pnm", "webp", "raw", "arw",
"svg", "pdf", "stl", "eps", "dvi", "ps", "cbr",
"cbz", "xpm", "ico" ];
static VIDEO_TYPES: &'static [&'static str] = &[
"avi", "flv", "m2v", "mkv", "mov", "mp4", "mpeg",
"mpg", "ogm", "ogv", "vob", "wmv" ];
static MUSIC_TYPES: &'static [&'static str] = &[
"aac", "m4a", "mp3", "ogg" ];
static MUSIC_LOSSLESS: &'static [&'static str] = &[
"alac", "ape", "flac", "wav" ];
static COMPRESSED_TYPES: &'static [&'static str] = &[
"zip", "tar", "Z", "gz", "bz2", "a", "ar", "7z",
"iso", "dmg", "tc", "rar", "par" ];
static DOCUMENT_TYPES: &'static [&'static str] = &[
"djvu", "doc", "docx", "eml", "eps", "odp", "ods",
"odt", "pdf", "ppt", "pptx", "xls", "xlsx" ];
static TEMP_TYPES: &'static [&'static str] = &[
"tmp", "swp", "swo", "swn", "bak" ];
static CRYPTO_TYPES: &'static [&'static str] = &[
"asc", "gpg", "sig", "signature", "pgp" ];
use filetype::FileType;
// Instead of working with Rust's Paths, we have our own File object
// that holds the Path and various cached information. Each file is
@ -91,7 +61,7 @@ impl<'a> File<'a> {
self.name.starts_with(".")
}
fn is_tmpfile(&self) -> bool {
pub fn is_tmpfile(&self) -> bool {
self.name.ends_with("~") || (self.name.starts_with("#") && self.name.ends_with("#"))
}
@ -101,7 +71,7 @@ impl<'a> File<'a> {
// content without their source files, such as how .js is valid
// without a .coffee.
fn get_source_files(&self) -> Vec<Path> {
pub fn get_source_files(&self) -> Vec<Path> {
match self.ext {
Some("class") => vec![self.path.with_extension("java")], // Java
Some("elc") => vec![self.path.with_extension("el")], // Emacs Lisp
@ -112,7 +82,7 @@ impl<'a> File<'a> {
}
}
fn get_source_files_usual(&self) -> Vec<Path> {
pub fn get_source_files_usual(&self) -> Vec<Path> {
match self.ext {
Some("js") => vec![self.path.with_extension("coffee"), self.path.with_extension("ts")], // CoffeeScript, TypeScript
Some("css") => vec![self.path.with_extension("sass"), self.path.with_extension("less")], // SASS, Less
@ -173,60 +143,7 @@ impl<'a> File<'a> {
}
fn file_colour(&self) -> Style {
if self.stat.kind == io::TypeDirectory {
Blue.bold()
}
else if self.stat.perm.contains(io::UserExecute) {
Green.bold()
}
else if self.is_tmpfile() {
Fixed(244).normal() // midway between white and black - should show up as grey on all terminals
}
else if self.name.starts_with("README") {
Yellow.bold().underline()
}
else if self.ext.is_some() && IMAGE_TYPES.iter().any(|&s| s == self.ext.unwrap()) {
Fixed(133).normal()
}
else if self.ext.is_some() && VIDEO_TYPES.iter().any(|&s| s == self.ext.unwrap()) {
Fixed(135).normal()
}
else if self.ext.is_some() && MUSIC_TYPES.iter().any(|&s| s == self.ext.unwrap()) {
Fixed(92).normal()
}
else if self.ext.is_some() && MUSIC_LOSSLESS.iter().any(|&s| s == self.ext.unwrap()) {
Fixed(93).normal()
}
else if self.ext.is_some() && CRYPTO_TYPES.iter().any(|&s| s == self.ext.unwrap()) {
Fixed(109).normal()
}
else if self.ext.is_some() && DOCUMENT_TYPES.iter().any(|&s| s == self.ext.unwrap()) {
Fixed(105).normal()
}
else if self.ext.is_some() && COMPRESSED_TYPES.iter().any(|&s| s == self.ext.unwrap()) {
Red.normal()
}
else if self.ext.is_some() && TEMP_TYPES.iter().any(|&s| s == self.ext.unwrap()) {
Fixed(244).normal()
}
else {
let source_files = self.get_source_files();
if source_files.len() == 0 {
let source_files_usual = self.get_source_files_usual();
if source_files_usual.iter().any(|path| self.dir.contains(path)) {
Fixed(244).normal()
}
else {
Plain
}
}
else if source_files.iter().any(|path| self.dir.contains(path)) {
Fixed(244).normal()
}
else {
Fixed(137).normal()
}
}
FileType::from_file(self).style()
}
fn permissions_string(&self) -> String {

116
filetype.rs Normal file
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@ -0,0 +1,116 @@
use colours::{Plain, Style, Black, Red, Green, Yellow, Blue, Purple, Cyan, Fixed};
use file::File;
use std::io;
pub enum FileType {
Normal, Directory, Executable, Immediate, Compiled,
Image, Video, Music, Lossless, Compressed, Document, Temp, Crypto,
}
static IMAGE_TYPES: &'static [&'static str] = &[
"png", "jpeg", "jpg", "gif", "bmp", "tiff", "tif",
"ppm", "pgm", "pbm", "pnm", "webp", "raw", "arw",
"svg", "stl", "eps", "dvi", "ps", "cbr",
"cbz", "xpm", "ico" ];
static VIDEO_TYPES: &'static [&'static str] = &[
"avi", "flv", "m2v", "mkv", "mov", "mp4", "mpeg",
"mpg", "ogm", "ogv", "vob", "wmv" ];
static MUSIC_TYPES: &'static [&'static str] = &[
"aac", "m4a", "mp3", "ogg" ];
static MUSIC_LOSSLESS: &'static [&'static str] = &[
"alac", "ape", "flac", "wav" ];
static COMPRESSED_TYPES: &'static [&'static str] = &[
"zip", "tar", "Z", "gz", "bz2", "a", "ar", "7z",
"iso", "dmg", "tc", "rar", "par" ];
static DOCUMENT_TYPES: &'static [&'static str] = &[
"djvu", "doc", "docx", "eml", "eps", "odp", "ods",
"odt", "pdf", "ppt", "pptx", "xls", "xlsx" ];
static TEMP_TYPES: &'static [&'static str] = &[
"tmp", "swp", "swo", "swn", "bak" ];
static CRYPTO_TYPES: &'static [&'static str] = &[
"asc", "gpg", "sig", "signature", "pgp" ];
impl FileType {
pub fn style(&self) -> Style {
match *self {
Normal => Plain,
Directory => Blue.bold(),
Executable => Green.bold(),
Image => Fixed(133).normal(),
Video => Fixed(135).normal(),
Music => Fixed(92).normal(),
Lossless => Fixed(93).normal(),
Crypto => Fixed(109).normal(),
Document => Fixed(105).normal(),
Compressed => Red.normal(),
Temp => Fixed(244).normal(),
Immediate => Yellow.bold().underline(),
Compiled => Fixed(137).normal(),
}
}
pub fn from_file(file: &File) -> FileType {
if file.stat.kind == io::TypeDirectory {
return Directory;
}
else if file.stat.perm.contains(io::UserExecute) {
return Executable;
}
else if file.ext.is_some() {
let ext = file.ext.unwrap();
if IMAGE_TYPES.iter().any(|&s| s == ext) {
return Image;
}
else if VIDEO_TYPES.iter().any(|&s| s == ext) {
return Video;
}
else if MUSIC_TYPES.iter().any(|&s| s == ext) {
return Music;
}
else if MUSIC_LOSSLESS.iter().any(|&s| s == ext) {
return Lossless;
}
else if CRYPTO_TYPES.iter().any(|&s| s == ext) {
return Crypto;
}
else if DOCUMENT_TYPES.iter().any(|&s| s == ext) {
return Document;
}
else if COMPRESSED_TYPES.iter().any(|&s| s == ext) {
return Compressed;
}
else if file.is_tmpfile() || TEMP_TYPES.iter().any(|&s| s == ext) {
return Temp;
}
}
if file.name.starts_with("README") {
return Immediate;
}
let source_files = file.get_source_files();
if source_files.len() == 0 {
let source_files_usual = file.get_source_files_usual();
if source_files_usual.iter().any(|path| file.dir.contains(path)) {
Temp
}
else {
Normal
}
}
else if source_files.iter().any(|path| file.dir.contains(path)) {
Temp
}
else {
Compiled
}
}
}