feat: New --collapse flag

README.md

@@ -103,6 +103,7 @@ Usage: dust --skip-total (No total row will be displayed)
 Usage: dust -z 40000/30MB/20kib (Exclude output files/directories below size 40000 bytes / 30MB / 20KiB)
 Usage: dust -j (Prints JSON representation of directories, try: dust -j  | jq)
 Usage: dust --files0-from=FILE (Reads null-terminated file paths from FILE); If FILE is - then read from stdin
+Usage: dust --collapse=node-modules will keep the node-modules folder collapsed in display instead of recursively opening it
 ```
 
 ## Config file

completions/_dust

@@ -45,6 +45,7 @@ _dust() {
 '-y+[just like -mtime, but based on file change time]: : ' \
 '--ctime=[just like -mtime, but based on file change time]: : ' \
 '--files0-from=[run dust on NUL-terminated file names specified in file; if argument is -, then read names from standard input]: :_files' \
+'*--collapse=[Keep these directories collapsed]: :_files' \
 '-m+[Directory '\''size'\'' is max filetime of child files instead of disk size. while a/c/m for last accessed/changed/modified time]: :(a c m)' \
 '--filetime=[Directory '\''size'\'' is max filetime of child files instead of disk size. while a/c/m for last accessed/changed/modified time]: :(a c m)' \
 '-p[Subdirectories will not have their path shortened]' \

completions/_dust.ps1

@@ -51,6 +51,7 @@ Register-ArgumentCompleter -Native -CommandName 'dust' -ScriptBlock {
             [CompletionResult]::new('-y', 'y', [CompletionResultType]::ParameterName, 'just like -mtime, but based on file change time')
             [CompletionResult]::new('--ctime', 'ctime', [CompletionResultType]::ParameterName, 'just like -mtime, but based on file change time')
             [CompletionResult]::new('--files0-from', 'files0-from', [CompletionResultType]::ParameterName, 'run dust on NUL-terminated file names specified in file; if argument is -, then read names from standard input')
+            [CompletionResult]::new('--collapse', 'collapse', [CompletionResultType]::ParameterName, 'Keep these directories collapsed')
             [CompletionResult]::new('-m', 'm', [CompletionResultType]::ParameterName, 'Directory ''size'' is max filetime of child files instead of disk size. while a/c/m for last accessed/changed/modified time')
             [CompletionResult]::new('--filetime', 'filetime', [CompletionResultType]::ParameterName, 'Directory ''size'' is max filetime of child files instead of disk size. while a/c/m for last accessed/changed/modified time')
             [CompletionResult]::new('-p', 'p', [CompletionResultType]::ParameterName, 'Subdirectories will not have their path shortened')

completions/dust.bash

@@ -19,7 +19,7 @@ _dust() {
 
     case "${cmd}" in
         dust)
-            opts="-d -T -n -p -X -I -L -x -s -r -c -C -b -B -z -R -f -i -v -e -t -w -P -D -F -o -S -j -M -A -y -m -h -V --depth --threads --config --number-of-lines --full-paths --ignore-directory --ignore-all-in-file --dereference-links --limit-filesystem --apparent-size --reverse --no-colors --force-colors --no-percent-bars --bars-on-right --min-size --screen-reader --skip-total --filecount --ignore_hidden --invert-filter --filter --file_types --terminal_width --no-progress --print-errors --only-dir --only-file --output-format --stack-size --output-json --mtime --atime --ctime --files0-from --filetime --help --version [PATH]..."
+            opts="-d -T -n -p -X -I -L -x -s -r -c -C -b -B -z -R -f -i -v -e -t -w -P -D -F -o -S -j -M -A -y -m -h -V --depth --threads --config --number-of-lines --full-paths --ignore-directory --ignore-all-in-file --dereference-links --limit-filesystem --apparent-size --reverse --no-colors --force-colors --no-percent-bars --bars-on-right --min-size --screen-reader --skip-total --filecount --ignore_hidden --invert-filter --filter --file_types --terminal_width --no-progress --print-errors --only-dir --only-file --output-format --stack-size --output-json --mtime --atime --ctime --files0-from --collapse --filetime --help --version [PATH]..."
             if [[ ${cur} == -* || ${COMP_CWORD} -eq 1 ]] ; then
                 COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
                 return 0
@@ -178,6 +178,10 @@ _dust() {
                     COMPREPLY=($(compgen -f "${cur}"))
                     return 0
                     ;;
+                --collapse)
+                    COMPREPLY=($(compgen -f "${cur}"))
+                    return 0
+                    ;;
                 --filetime)
                     COMPREPLY=($(compgen -W "a c m" -- "${cur}"))
                     return 0

completions/dust.elv

@@ -48,6 +48,7 @@ set edit:completion:arg-completer[dust] = {|@words|
             cand -y 'just like -mtime, but based on file change time'
             cand --ctime 'just like -mtime, but based on file change time'
             cand --files0-from 'run dust on NUL-terminated file names specified in file; if argument is -, then read names from standard input'
+            cand --collapse 'Keep these directories collapsed'
             cand -m 'Directory ''size'' is max filetime of child files instead of disk size. while a/c/m for last accessed/changed/modified time'
             cand --filetime 'Directory ''size'' is max filetime of child files instead of disk size. while a/c/m for last accessed/changed/modified time'
             cand -p 'Subdirectories will not have their path shortened'

completions/dust.fish

@@ -14,6 +14,7 @@ complete -c dust -s M -l mtime -d '+/-n matches files modified more/less than n
 complete -c dust -s A -l atime -d 'just like -mtime, but based on file access time' -r
 complete -c dust -s y -l ctime -d 'just like -mtime, but based on file change time' -r
 complete -c dust -l files0-from -d 'run dust on NUL-terminated file names specified in file; if argument is -, then read names from standard input' -r -F
+complete -c dust -l collapse -d 'Keep these directories collapsed' -r -F
 complete -c dust -s m -l filetime -d 'Directory \'size\' is max filetime of child files instead of disk size. while a/c/m for last accessed/changed/modified time' -r -f -a "{a\t'',c\t'',m\t''}"
 complete -c dust -s p -l full-paths -d 'Subdirectories will not have their path shortened'
 complete -c dust -s L -l dereference-links -d 'dereference sym links - Treat sym links as directories and go into them'

man-page/dust.1

@@ -4,7 +4,7 @@
 .SH NAME
 Dust \- Like du but more intuitive
 .SH SYNOPSIS
-\fBdust\fR [\fB\-d\fR|\fB\-\-depth\fR] [\fB\-T\fR|\fB\-\-threads\fR] [\fB\-\-config\fR] [\fB\-n\fR|\fB\-\-number\-of\-lines\fR] [\fB\-p\fR|\fB\-\-full\-paths\fR] [\fB\-X\fR|\fB\-\-ignore\-directory\fR] [\fB\-I\fR|\fB\-\-ignore\-all\-in\-file\fR] [\fB\-L\fR|\fB\-\-dereference\-links\fR] [\fB\-x\fR|\fB\-\-limit\-filesystem\fR] [\fB\-s\fR|\fB\-\-apparent\-size\fR] [\fB\-r\fR|\fB\-\-reverse\fR] [\fB\-c\fR|\fB\-\-no\-colors\fR] [\fB\-C\fR|\fB\-\-force\-colors\fR] [\fB\-b\fR|\fB\-\-no\-percent\-bars\fR] [\fB\-B\fR|\fB\-\-bars\-on\-right\fR] [\fB\-z\fR|\fB\-\-min\-size\fR] [\fB\-R\fR|\fB\-\-screen\-reader\fR] [\fB\-\-skip\-total\fR] [\fB\-f\fR|\fB\-\-filecount\fR] [\fB\-i\fR|\fB\-\-ignore_hidden\fR] [\fB\-v\fR|\fB\-\-invert\-filter\fR] [\fB\-e\fR|\fB\-\-filter\fR] [\fB\-t\fR|\fB\-\-file_types\fR] [\fB\-w\fR|\fB\-\-terminal_width\fR] [\fB\-P\fR|\fB\-\-no\-progress\fR] [\fB\-\-print\-errors\fR] [\fB\-D\fR|\fB\-\-only\-dir\fR] [\fB\-F\fR|\fB\-\-only\-file\fR] [\fB\-o\fR|\fB\-\-output\-format\fR] [\fB\-S\fR|\fB\-\-stack\-size\fR] [\fB\-j\fR|\fB\-\-output\-json\fR] [\fB\-M\fR|\fB\-\-mtime\fR] [\fB\-A\fR|\fB\-\-atime\fR] [\fB\-y\fR|\fB\-\-ctime\fR] [\fB\-\-files0\-from\fR] [\fB\-m\fR|\fB\-\-filetime\fR] [\fB\-h\fR|\fB\-\-help\fR] [\fB\-V\fR|\fB\-\-version\fR] [\fIPATH\fR] 
+\fBdust\fR [\fB\-d\fR|\fB\-\-depth\fR] [\fB\-T\fR|\fB\-\-threads\fR] [\fB\-\-config\fR] [\fB\-n\fR|\fB\-\-number\-of\-lines\fR] [\fB\-p\fR|\fB\-\-full\-paths\fR] [\fB\-X\fR|\fB\-\-ignore\-directory\fR] [\fB\-I\fR|\fB\-\-ignore\-all\-in\-file\fR] [\fB\-L\fR|\fB\-\-dereference\-links\fR] [\fB\-x\fR|\fB\-\-limit\-filesystem\fR] [\fB\-s\fR|\fB\-\-apparent\-size\fR] [\fB\-r\fR|\fB\-\-reverse\fR] [\fB\-c\fR|\fB\-\-no\-colors\fR] [\fB\-C\fR|\fB\-\-force\-colors\fR] [\fB\-b\fR|\fB\-\-no\-percent\-bars\fR] [\fB\-B\fR|\fB\-\-bars\-on\-right\fR] [\fB\-z\fR|\fB\-\-min\-size\fR] [\fB\-R\fR|\fB\-\-screen\-reader\fR] [\fB\-\-skip\-total\fR] [\fB\-f\fR|\fB\-\-filecount\fR] [\fB\-i\fR|\fB\-\-ignore_hidden\fR] [\fB\-v\fR|\fB\-\-invert\-filter\fR] [\fB\-e\fR|\fB\-\-filter\fR] [\fB\-t\fR|\fB\-\-file_types\fR] [\fB\-w\fR|\fB\-\-terminal_width\fR] [\fB\-P\fR|\fB\-\-no\-progress\fR] [\fB\-\-print\-errors\fR] [\fB\-D\fR|\fB\-\-only\-dir\fR] [\fB\-F\fR|\fB\-\-only\-file\fR] [\fB\-o\fR|\fB\-\-output\-format\fR] [\fB\-S\fR|\fB\-\-stack\-size\fR] [\fB\-j\fR|\fB\-\-output\-json\fR] [\fB\-M\fR|\fB\-\-mtime\fR] [\fB\-A\fR|\fB\-\-atime\fR] [\fB\-y\fR|\fB\-\-ctime\fR] [\fB\-\-files0\-from\fR] [\fB\-\-collapse\fR] [\fB\-m\fR|\fB\-\-filetime\fR] [\fB\-h\fR|\fB\-\-help\fR] [\fB\-V\fR|\fB\-\-version\fR] [\fIPATH\fR] 
 .SH DESCRIPTION
 Like du but more intuitive
 .SH OPTIONS
@@ -118,6 +118,9 @@ just like \-mtime, but based on file change time
 \fB\-\-files0\-from\fR
 run dust on NUL\-terminated file names specified in file; if argument is \-, then read names from standard input
 .TP
+\fB\-\-collapse\fR
+Keep these directories collapsed
+.TP
 \fB\-m\fR, \fB\-\-filetime\fR
 Directory \*(Aqsize\*(Aq is max filetime of child files instead of disk size. while a/c/m for last accessed/changed/modified time
 .br

src/cli.rs

@@ -303,6 +303,14 @@ pub fn build_cli() -> Command {
                 .num_args(1)
                 .help("run dust on NUL-terminated file names specified in file; if argument is -, then read names from standard input"),
         )
+        .arg(
+            Arg::new("collapse")
+                .long("collapse")
+                .value_hint(clap::ValueHint::AnyPath)
+                .value_parser(value_parser!(String))
+                .action(clap::ArgAction::Append)
+                .help("Keep these directories collapsed"),
+        )
         .arg(
             Arg::new("filetime")
                 .short('m')

src/filter.rs

@@ -3,6 +3,7 @@ use crate::node::FileTime;
 use crate::node::Node;
 use std::collections::BinaryHeap;
 use std::collections::HashMap;
+use std::collections::HashSet;
 use std::path::Path;
 use std::path::PathBuf;
 
@@ -19,6 +20,7 @@ pub fn get_biggest(
     top_level_nodes: Vec<Node>,
     display_data: AggregateData,
     by_filetime: &Option<FileTime>,
+    keep_collapsed: HashSet<PathBuf>,
 ) -> Option<DisplayNode> {
     if top_level_nodes.is_empty() {
         // perhaps change this, bring back Error object?
@@ -52,13 +54,19 @@ pub fn get_biggest(
         heap = add_children(&display_data, &root, heap);
     }
 
-    Some(fill_remaining_lines(heap, &root, display_data))
+    Some(fill_remaining_lines(
+        heap,
+        &root,
+        display_data,
+        keep_collapsed,
+    ))
 }
 
 pub fn fill_remaining_lines<'a>(
     mut heap: BinaryHeap<&'a Node>,
     root: &'a Node,
     display_data: AggregateData,
+    keep_collapsed: HashSet<PathBuf>,
 ) -> DisplayNode {
     let mut allowed_nodes = HashMap::new();
 
@@ -69,7 +77,9 @@ pub fn fill_remaining_lines<'a>(
                 if !display_data.only_file || line.children.is_empty() {
                     allowed_nodes.insert(line.name.as_path(), line);
                 }
-                heap = add_children(&display_data, line, heap);
+                if !keep_collapsed.contains(&line.name) {
+                    heap = add_children(&display_data, line, heap);
+                }
             }
             None => break,
         }

src/main.rs

@@ -244,6 +244,19 @@ fn main() {
         indicator.spawn(output_format.clone())
     }
 
+    let keep_collapsed: HashSet<PathBuf> = match options.get_many::<String>("collapse") {
+        Some(collapse) => {
+            let mut combined_dirs = HashSet::new();
+            for collapse_dir in collapse {
+                for target_dir in target_dirs.iter() {
+                    combined_dirs.insert(PathBuf::from(target_dir).join(collapse_dir));
+                }
+            }
+            combined_dirs
+        }
+        None => HashSet::new(),
+    };
+
     let filter_modified_time = config.get_modified_time_operator(&options);
     let filter_accessed_time = config.get_accessed_time_operator(&options);
     let filter_changed_time = config.get_changed_time_operator(&options);
@@ -281,7 +294,7 @@ fn main() {
                 depth,
                 using_a_filter: !filter_regexs.is_empty() || !invert_filter_regexs.is_empty(),
             };
-            get_biggest(top_level_nodes, agg_data, &by_filetime)
+            get_biggest(top_level_nodes, agg_data, &by_filetime, keep_collapsed)
         }
     };
 

tests/test_flags.rs

@@ -254,3 +254,10 @@ pub fn test_force_color() {
     assert!(output.contains("\x1B[31m"));
     assert!(output.contains("\x1B[0m"));
 }
+
+#[test]
+pub fn test_collapse() {
+    let output = build_command(vec!["--collapse", "many", "tests/test_dir/"]);
+    assert!(output.contains("many"));
+    assert!(!output.contains("hello_file"));
+}