[英]How to show only first level subdir in bash auto-completion?
I have this bash completion file 我有这个bash完成文件
#/etc/bash_completion.d/mycommand
_mycommand()
{
local cur
COMPREPLY=()
_init_completion || return
#Variable to hold the current word
cur="${COMP_WORDS[COMP_CWORD]}"
#array variable COMPREPLY
dirs=('Rootdir/
Secondrootdir/
Rootdir/Subdir/
Secondrootdir/Anothersubdir/
Secondrootdir/Thirdsubdir/
Secondrootdir/Anothersubdir/Subsubdir/'
)
COMPREPLY=($(compgen -W "$dirs" "$cur"))
}
#Assign the auto-completion function _mycommand for our command mycommand.
complete -F _mycommand mycommand
When I have multiple choice and hit TAB twice I see following: 当我有多个选择并按两次TAB时,我看到以下内容:
$ mycommand Secondrootdir/
Secondrootdir/
Secondrootdir/Anothersubdir/
Secondrootdir/Anothersubdir/Subsubdir/
Secondrootdir/Thirdsubdir/
But I want to see only one-level deep subdirs of the current entered Secondrootdir 但我想看到目前进入Secondrootdir的只有一级深的子目录
like this: 像这样:
$ mycommand Secondrootdir/
Anothersubdir/ Thirdsubdir/
cd command does business well cd命令做得很好
$ cd Music/
kattymusic/ Playlists/ Relax/
But I can't understand how cd auto-completion works. 但我无法理解cd自动完成的工作原理。
May anybody help me, please? 请问有人帮帮我吗?
Many thanx to the post 很多人都不喜欢这个帖子
Bash completion: compgen a wordlist as if they were paths - Only suggest up until next slash Bash完成:compgen一个wordlist就好像它们是路径 - 只建议直到下一个斜线
finally the code looks like this 最后代码看起来像这样
#/etc/bash_completion.d/mycommand
_mycommand()
{
local cur i
_init_completion || return
compopt -o filenames
#Variable to hold the current word
cur="${COMP_WORDS[COMP_CWORD]}"
dirs='Rootdir/Subdir/ Secondrootdir/Thirdsubdir/ Secondrootdir/Anothersubdir/Subsubdir/'
# If we include root dirs we have to remove them
# e.g we have Secondrootdir/ Secondrootdir/Anothersubdir/ Secondrootdir/Anothersubdir/Subsubdir/'
# we need to skip the shorties path and remain only the longest one Secondrootdir/Anothersubdir/Subsubdir/'
# dirs='Rootdir/
# Secondrootdir/
# Rootdir/Subdir/
# Secondrootdir/Anothersubdir/
# Secondrootdir/Thirdsubdir/
# Secondrootdir/Anothersubdir/Subsubdir/'
arr=($(compgen -W "$dirs" -- $cur))
for path in "${arr[@]}"
do
local trailing_trim
# Determine what to trim from the end
trailing_trim="${path#${cur%/*}/}/"
trailing_trim="${trailing_trim#*/}"
trailing_trim="${trailing_trim%/}"
# Don't add a space if there is more to complete
[[ "$trailing_trim" != "" ]] && compopt -o nospace
# Remove the slash if mark-directories is off
if ! _rl_enabled mark-directories
then
# If The current typed path doesnt have a slash in it yet check if
# it is the full first portion of a path and ignore everything after
# if it is. We don't have to do this once the typed path has a slash
# in it as the logic above will pick up on it
[[ "$cur" != */* && "$path" == ${cur}/* ]] && path="$cur/$trailing_trim"
trailing_trim="/$trailing_trim"
fi
COMPREPLY[i++]="${path%%${trailing_trim}}"
done
}
#Assign the auto-completion function _mycommand for our command mycommand.
complete -F _mycommand mycommand
I've found the solution and it's incredibly simple. 我找到了解决方案,而且非常简单。
Just one line of code does the magic 只需一行代码即可实现
# This forces readline to only display the last item separated by a slash
compopt -o filenames
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