feature: Support for dereference links -L follow

du has -L flag which allows it to dereference or follow
symlinks. Clone this feature into dust.
https://github.com/bootandy/dust/issues/276

completions/_dust

@@ -35,6 +35,8 @@ _dust() {
 '--version[Print version information]' \
 '-p[Subdirectories will not have their path shortened]' \
 '--full-paths[Subdirectories will not have their path shortened]' \
+'-L[dereference sym links - Treat sym links as directories and go into them]' \
+'--dereference-links[dereference sym links - Treat sym links as directories and go into them]' \
 '-x[Only count the files and directories on the same filesystem as the supplied directory]' \
 '--limit-filesystem[Only count the files and directories on the same filesystem as the supplied directory]' \
 '-s[Use file length instead of blocks]' \

completions/_dust.ps1

@@ -41,6 +41,8 @@ Register-ArgumentCompleter -Native -CommandName 'dust' -ScriptBlock {
             [CompletionResult]::new('--version', 'version', [CompletionResultType]::ParameterName, 'Print version information')
             [CompletionResult]::new('-p', 'p', [CompletionResultType]::ParameterName, 'Subdirectories will not have their path shortened')
             [CompletionResult]::new('--full-paths', 'full-paths', [CompletionResultType]::ParameterName, 'Subdirectories will not have their path shortened')
+            [CompletionResult]::new('-L', 'L', [CompletionResultType]::ParameterName, 'dereference sym links - Treat sym links as directories and go into them')
+            [CompletionResult]::new('--dereference-links', 'dereference-links', [CompletionResultType]::ParameterName, 'dereference sym links - Treat sym links as directories and go into them')
             [CompletionResult]::new('-x', 'x', [CompletionResultType]::ParameterName, 'Only count the files and directories on the same filesystem as the supplied directory')
             [CompletionResult]::new('--limit-filesystem', 'limit-filesystem', [CompletionResultType]::ParameterName, 'Only count the files and directories on the same filesystem as the supplied directory')
             [CompletionResult]::new('-s', 's', [CompletionResultType]::ParameterName, 'Use file length instead of blocks')

completions/dust.bash

@@ -19,7 +19,7 @@ _dust() {
 
     case "${cmd}" in
         dust)
-            opts="-h -V -d -n -p -X -x -s -r -c -b -z -f -i -v -e -t -w -H -D --help --version --depth --number-of-lines --full-paths --ignore-directory --limit-filesystem --apparent-size --reverse --no-colors --no-percent-bars --min-size --skip-total --filecount --ignore_hidden --invert-filter --filter --file_types --terminal_width --si --only-dir <inputs>..."
+            opts="-h -V -d -n -p -X -L -x -s -r -c -b -z -f -i -v -e -t -w -H -D --help --version --depth --number-of-lines --full-paths --ignore-directory --dereference-links --limit-filesystem --apparent-size --reverse --no-colors --no-percent-bars --min-size --skip-total --filecount --ignore_hidden --invert-filter --filter --file_types --terminal_width --si --only-dir <inputs>..."
             if [[ ${cur} == -* || ${COMP_CWORD} -eq 1 ]] ; then
                 COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
                 return 0

completions/dust.elv

@@ -38,6 +38,8 @@ set edit:completion:arg-completer[dust] = {|@words|
             cand --version 'Print version information'
             cand -p 'Subdirectories will not have their path shortened'
             cand --full-paths 'Subdirectories will not have their path shortened'
+            cand -L 'dereference sym links - Treat sym links as directories and go into them'
+            cand --dereference-links 'dereference sym links - Treat sym links as directories and go into them'
             cand -x 'Only count the files and directories on the same filesystem as the supplied directory'
             cand --limit-filesystem 'Only count the files and directories on the same filesystem as the supplied directory'
             cand -s 'Use file length instead of blocks'

completions/dust.fish

@@ -8,6 +8,7 @@ complete -c dust -s w -l terminal_width -d 'Specify width of output overriding t
 complete -c dust -s h -l help -d 'Print help information'
 complete -c dust -s V -l version -d 'Print version information'
 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'
 complete -c dust -s x -l limit-filesystem -d 'Only count the files and directories on the same filesystem as the supplied directory'
 complete -c dust -s s -l apparent-size -d 'Use file length instead of blocks'
 complete -c dust -s r -l reverse -d 'Print tree upside down (biggest highest)'