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Add option to only display directories

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This allows printing directory trees without any files, only
showing the structure.
I haven't decided on a letter for the short option.

Implements #401
This commit is contained in:
Marco 'don' Kaulea 2018-07-12 18:51:14 +02:00
parent a3b2f2b3f4
commit 054cac6b82
3 changed files with 10 additions and 1 deletions
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7
src/fs/filter.rs
View File

@ -41,6 +41,9 @@ pub struct FileFilter {
/// ones, depending on the sort field.
pub reverse: bool,
/// Whether to only show directories
pub only_dirs: bool,
/// Which invisible “dot” files to include when listing a directory.
///
/// Files starting with a single “.” are used to determine “system” or
@ -94,6 +97,10 @@ impl FileFilter {
/// filter predicate for files found inside a directory.
pub fn filter_child_files(&self, files: &mut Vec<File>) {
files.retain(|f| !self.ignore_patterns.is_ignored(&f.name));
if self.only_dirs {
files.retain(|f| f.is_directory());
}
}
/// Remove every file in the given vector that does *not* pass the

1
src/options/filter.rs
View File

@ -14,6 +14,7 @@ impl FileFilter {
Ok(FileFilter {
list_dirs_first: matches.has(&flags::DIRS_FIRST)?,
reverse: matches.has(&flags::REVERSE)?,
only_dirs: matches.has(&flags::ONLY_DIRS)?,
sort_field: SortField::deduce(matches)?,
dot_filter: DotFilter::deduce(matches)?,
ignore_patterns: IgnorePatterns::deduce(matches)?,

3
src/options/flags.rs
View File

@ -30,6 +30,7 @@ pub static SORT: Arg = Arg { short: Some(b's'), long: "sort", take
pub static IGNORE_GLOB: Arg = Arg { short: Some(b'I'), long: "ignore-glob", takes_value: TakesValue::Necessary(None) };
pub static GIT_IGNORE: Arg = Arg { short: None, long: "git-ignore", takes_value: TakesValue::Forbidden };
pub static DIRS_FIRST: Arg = Arg { short: None, long: "group-directories-first", takes_value: TakesValue::Forbidden };
pub static ONLY_DIRS: Arg = Arg { short: None, long: "only-dirs", takes_value: TakesValue::Forbidden };
const SORTS: Values = &[ "name", "Name", "size", "extension",
"Extension", "modified", "accessed",
"created", "inode", "type", "none" ];
@ -62,7 +63,7 @@ pub static ALL_ARGS: Args = Args(&[
&COLOR, &COLOUR, &COLOR_SCALE, &COLOUR_SCALE,
&ALL, &LIST_DIRS, &LEVEL, &REVERSE, &SORT, &DIRS_FIRST,
&IGNORE_GLOB, &GIT_IGNORE,
&IGNORE_GLOB, &GIT_IGNORE, &ONLY_DIRS,
&BINARY, &BYTES, &GROUP, &HEADER, &INODE, &LINKS, &MODIFIED, &BLOCKS,
&TIME, &ACCESSED, &CREATED, &TIME_STYLE,