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use fs::Dir;
#[derive(PartialEq, Debug, Copy, Clone)]
pub enum Column {
Permissions,
FileSize(SizeFormat),
Timestamp(TimeType),
Blocks,
User,
Group,
HardLinks,
Inode,
GitStatus,
}
/// Each column can pick its own **Alignment**. Usually, numbers are
/// right-aligned, and text is left-aligned.
#[derive(Copy, Clone)]
pub enum Alignment {
Left, Right,
}
impl Column {
/// Get the alignment this column should use.
pub fn alignment(&self) -> Alignment {
match *self {
Column::FileSize(_) => Alignment::Right,
Column::HardLinks => Alignment::Right,
Column::Inode => Alignment::Right,
Column::Blocks => Alignment::Right,
Column::GitStatus => Alignment::Right,
_ => Alignment::Left,
}
}
/// Get the text that should be printed at the top, when the user elects
/// to have a header row printed.
pub fn header(&self) -> &'static str {
match *self {
Column::Permissions => "Permissions",
Column::FileSize(_) => "Size",
Column::Timestamp(t) => t.header(),
Column::Blocks => "Blocks",
Column::User => "User",
Column::Group => "Group",
Column::HardLinks => "Links",
Column::Inode => "inode",
Column::GitStatus => "Git",
}
}
}
#[derive(PartialEq, Copy, Clone, Debug, Default)]
pub struct Columns {
pub size_format: SizeFormat,
pub time_types: TimeTypes,
pub inode: bool,
pub links: bool,
pub blocks: bool,
pub group: bool,
pub git: bool
}
impl Columns {
pub fn should_scan_for_git(&self) -> bool {
self.git
}
pub fn for_dir(&self, dir: Option<&Dir>) -> Vec<Column> {
let mut columns = vec![];
if self.inode {
columns.push(Column::Inode);
}
columns.push(Column::Permissions);
if self.links {
columns.push(Column::HardLinks);
}
columns.push(Column::FileSize(self.size_format));
if self.blocks {
columns.push(Column::Blocks);
}
columns.push(Column::User);
if self.group {
columns.push(Column::Group);
}
if self.time_types.modified {
columns.push(Column::Timestamp(TimeType::Modified));
}
if self.time_types.created {
columns.push(Column::Timestamp(TimeType::Created));
}
if self.time_types.accessed {
columns.push(Column::Timestamp(TimeType::Accessed));
}
if cfg!(feature="git") {
if let Some(d) = dir {
if self.should_scan_for_git() && d.has_git_repo() {
columns.push(Column::GitStatus);
}
}
}
columns
}
}
/// Formatting options for file sizes.
#[derive(PartialEq, Debug, Copy, Clone)]
pub enum SizeFormat {
/// Format the file size using **decimal** prefixes, such as “kilo”,
/// “mega”, or “giga”.
DecimalBytes,
/// Format the file size using **binary** prefixes, such as “kibi”,
/// “mebi”, or “gibi”.
BinaryBytes,
/// Do no formatting and just display the size as a number of bytes.
JustBytes,
}
impl Default for SizeFormat {
fn default() -> SizeFormat {
SizeFormat::DecimalBytes
}
}
/// The types of a file’s time fields. These three fields are standard
/// across most (all?) operating systems.
#[derive(PartialEq, Debug, Copy, Clone)]
pub enum TimeType {
/// The file’s accessed time (`st_atime`).
Accessed,
/// The file’s modified time (`st_mtime`).
Modified,
/// The file’s creation time (`st_ctime`).
Created,
}
impl TimeType {
/// Returns the text to use for a column’s heading in the columns output.
pub fn header(&self) -> &'static str {
match *self {
TimeType::Accessed => "Date Accessed",
TimeType::Modified => "Date Modified",
TimeType::Created => "Date Created",
}
}
}
/// Fields for which of a file’s time fields should be displayed in the
/// columns output.
///
/// There should always be at least one of these--there's no way to disable
/// the time columns entirely (yet).
#[derive(PartialEq, Debug, Copy, Clone)]
pub struct TimeTypes {
pub accessed: bool,
pub modified: bool,
pub created: bool,
}
impl Default for TimeTypes {
/// By default, display just the ‘modified’ time. This is the most
/// common option, which is why it has this shorthand.
fn default() -> TimeTypes {
TimeTypes { accessed: false, modified: true, created: false }
}
}
|
