mirror of https://github.com/Llewellynvdm/exa.git
205 lines
7.7 KiB
Rust
205 lines
7.7 KiB
Rust
use ansi_term::{ANSIString, Style};
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use crate::fs::fields as f;
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use crate::output::cell::{TextCell, DisplayWidth};
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use crate::output::render::FiletypeColours;
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impl f::PermissionsPlus {
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pub fn render<C: Colours+FiletypeColours>(&self, colours: &C) -> TextCell {
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let mut chars = vec![ self.file_type.render(colours) ];
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chars.extend(self.permissions.render(colours, self.file_type.is_regular_file()));
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if self.xattrs {
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chars.push(colours.attribute().paint("@"));
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}
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// As these are all ASCII characters, we can guarantee that they’re
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// all going to be one character wide, and don’t need to compute the
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// cell’s display width.
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TextCell {
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width: DisplayWidth::from(chars.len()),
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contents: chars.into(),
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}
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}
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}
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impl f::Permissions {
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pub fn render<C: Colours>(&self, colours: &C, is_regular_file: bool) -> Vec<ANSIString<'static>> {
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let bit = |bit, chr: &'static str, style: Style| {
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if bit { style.paint(chr) }
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else { colours.dash().paint("-") }
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};
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vec![
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bit(self.user_read, "r", colours.user_read()),
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bit(self.user_write, "w", colours.user_write()),
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self.user_execute_bit(colours, is_regular_file),
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bit(self.group_read, "r", colours.group_read()),
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bit(self.group_write, "w", colours.group_write()),
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self.group_execute_bit(colours),
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bit(self.other_read, "r", colours.other_read()),
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bit(self.other_write, "w", colours.other_write()),
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self.other_execute_bit(colours)
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]
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}
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fn user_execute_bit<C: Colours>(&self, colours: &C, is_regular_file: bool) -> ANSIString<'static> {
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match (self.user_execute, self.setuid, is_regular_file) {
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(false, false, _) => colours.dash().paint("-"),
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(true, false, false) => colours.user_execute_other().paint("x"),
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(true, false, true) => colours.user_execute_file().paint("x"),
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(false, true, _) => colours.special_other().paint("S"),
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(true, true, false) => colours.special_other().paint("s"),
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(true, true, true) => colours.special_user_file().paint("s"),
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}
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}
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fn group_execute_bit<C: Colours>(&self, colours: &C) -> ANSIString<'static> {
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match (self.group_execute, self.setgid) {
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(false, false) => colours.dash().paint("-"),
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(true, false) => colours.group_execute().paint("x"),
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(false, true) => colours.special_other().paint("S"),
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(true, true) => colours.special_other().paint("s"),
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}
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}
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fn other_execute_bit<C: Colours>(&self, colours: &C) -> ANSIString<'static> {
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match (self.other_execute, self.sticky) {
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(false, false) => colours.dash().paint("-"),
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(true, false) => colours.other_execute().paint("x"),
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(false, true) => colours.special_other().paint("T"),
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(true, true) => colours.special_other().paint("t"),
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}
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}
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}
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pub trait Colours {
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fn dash(&self) -> Style;
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fn user_read(&self) -> Style;
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fn user_write(&self) -> Style;
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fn user_execute_file(&self) -> Style;
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fn user_execute_other(&self) -> Style;
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fn group_read(&self) -> Style;
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fn group_write(&self) -> Style;
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fn group_execute(&self) -> Style;
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fn other_read(&self) -> Style;
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fn other_write(&self) -> Style;
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fn other_execute(&self) -> Style;
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fn special_user_file(&self) -> Style;
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fn special_other(&self) -> Style;
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fn attribute(&self) -> Style;
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}
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#[cfg(test)]
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#[allow(unused_results)]
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pub mod test {
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use super::Colours;
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use crate::output::cell::TextCellContents;
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use crate::fs::fields as f;
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use ansi_term::Colour::*;
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use ansi_term::Style;
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struct TestColours;
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impl Colours for TestColours {
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fn dash(&self) -> Style { Fixed(11).normal() }
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fn user_read(&self) -> Style { Fixed(101).normal() }
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fn user_write(&self) -> Style { Fixed(102).normal() }
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fn user_execute_file(&self) -> Style { Fixed(103).normal() }
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fn user_execute_other(&self) -> Style { Fixed(113).normal() }
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fn group_read(&self) -> Style { Fixed(104).normal() }
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fn group_write(&self) -> Style { Fixed(105).normal() }
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fn group_execute(&self) -> Style { Fixed(106).normal() }
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fn other_read(&self) -> Style { Fixed(107).normal() }
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fn other_write(&self) -> Style { Fixed(108).normal() }
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fn other_execute(&self) -> Style { Fixed(109).normal() }
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fn special_user_file(&self) -> Style { Fixed(110).normal() }
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fn special_other(&self) -> Style { Fixed(111).normal() }
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fn attribute(&self) -> Style { Fixed(112).normal() }
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}
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#[test]
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fn negate() {
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let bits = f::Permissions {
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user_read: false, user_write: false, user_execute: false, setuid: false,
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group_read: false, group_write: false, group_execute: false, setgid: false,
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other_read: false, other_write: false, other_execute: false, sticky: false,
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};
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let expected = TextCellContents::from(vec![
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Fixed(11).paint("-"), Fixed(11).paint("-"), Fixed(11).paint("-"),
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Fixed(11).paint("-"), Fixed(11).paint("-"), Fixed(11).paint("-"),
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Fixed(11).paint("-"), Fixed(11).paint("-"), Fixed(11).paint("-"),
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]);
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assert_eq!(expected, bits.render(&TestColours, false).into())
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}
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#[test]
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fn affirm() {
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let bits = f::Permissions {
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user_read: true, user_write: true, user_execute: true, setuid: false,
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group_read: true, group_write: true, group_execute: true, setgid: false,
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other_read: true, other_write: true, other_execute: true, sticky: false,
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};
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let expected = TextCellContents::from(vec![
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Fixed(101).paint("r"), Fixed(102).paint("w"), Fixed(103).paint("x"),
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Fixed(104).paint("r"), Fixed(105).paint("w"), Fixed(106).paint("x"),
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Fixed(107).paint("r"), Fixed(108).paint("w"), Fixed(109).paint("x"),
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]);
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assert_eq!(expected, bits.render(&TestColours, true).into())
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}
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#[test]
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fn specials() {
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let bits = f::Permissions {
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user_read: false, user_write: false, user_execute: true, setuid: true,
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group_read: false, group_write: false, group_execute: true, setgid: true,
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other_read: false, other_write: false, other_execute: true, sticky: true,
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};
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let expected = TextCellContents::from(vec![
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Fixed(11).paint("-"), Fixed(11).paint("-"), Fixed(110).paint("s"),
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Fixed(11).paint("-"), Fixed(11).paint("-"), Fixed(111).paint("s"),
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Fixed(11).paint("-"), Fixed(11).paint("-"), Fixed(111).paint("t"),
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]);
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assert_eq!(expected, bits.render(&TestColours, true).into())
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}
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#[test]
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fn extra_specials() {
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let bits = f::Permissions {
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user_read: false, user_write: false, user_execute: false, setuid: true,
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group_read: false, group_write: false, group_execute: false, setgid: true,
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other_read: false, other_write: false, other_execute: false, sticky: true,
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};
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let expected = TextCellContents::from(vec![
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Fixed(11).paint("-"), Fixed(11).paint("-"), Fixed(111).paint("S"),
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Fixed(11).paint("-"), Fixed(11).paint("-"), Fixed(111).paint("S"),
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Fixed(11).paint("-"), Fixed(11).paint("-"), Fixed(111).paint("T"),
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]);
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assert_eq!(expected, bits.render(&TestColours, true).into())
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}
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}
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