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[fish] Refactor __fzf_parse_commandline, remove __fzf_get_dir

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The __fzf_get_dir function was called only once, and was basically a
single command in a while loop.
This commit is contained in:
bitraid 2025-02-13 12:46:49 +02:00 committed by Junegunn Choi
parent f232df2887
commit cbbd939a94
1 changed files with 22 additions and 38 deletions
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60
shell/key-bindings.fish
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@ -136,39 +136,41 @@ function fzf_key_bindings
end
function __fzf_parse_commandline -d 'Parse the current command line token and return split of existing filepath, fzf query, and optional -option= prefix'
set -l commandline (commandline -t)
set -l dir '.'
set -l query
set -l commandline (commandline -t | string unescape -n)
# strip -option= from token if present
# Strip -option= from token if present
set -l prefix (string match -r -- '^-[^\s=]+=' $commandline)
set commandline (string replace -- "$prefix" '' $commandline)
# Enable home directory expansion of leading ~/
set commandline (string replace -r -- '^~/' '\$HOME/' $commandline)
# escape special characters, except for the $ sign of valid variable names,
# so that after eval, the original string is returned, but with the
# variable names replaced by their values.
# Escape special characters, except for the $ sign of valid variable names,
# so that the original string with expanded variables is returned after eval.
set commandline (string escape -n -- $commandline)
set commandline (string replace -r -a -- '\x5c\$(?=[\w])' '\$' $commandline)
set commandline (string replace -r -a -- '\\\\\$(?=[\w])' '\$' $commandline)
# eval is used to do shell expansion on paths
eval set commandline $commandline
# Combine multiple consecutive slashes into one, and unescape.
set commandline (string replace -r -a -- '/+' '/' $commandline | string unescape -n)
# Combine multiple consecutive slashes into one.
set commandline (string replace -r -a -- '/+' '/' $commandline)
if test -z "$commandline"
# Default to current directory with no --query
set dir '.'
set fzf_query ''
else
set dir (__fzf_get_dir $commandline)
if test -n "$commandline"
# Strip trailing slash, unless $dir is root dir (/)
set dir (string replace -r -- '(?<!^)/$' '' $commandline)
# BUG: on combined expressions, if a left argument is a single `!`, the
# builtin test command of fish will treat it as the ! operator. To
# overcome this, have the variable parts on the right.
if test "." = "$dir" -a "./" != (string sub -l 2 -- $commandline)
# if $dir is "." but commandline is not a relative path, this means no file path found
# Set $dir to the longest existing filepath
while not test -d "$dir"
# If path is absolute, this can keep going until ends up at /
# If path is relative, this can keep going until entire input is consumed, dirname returns "."
set dir (dirname -- $dir)
end
if test "$dir" = '.'; and test (string sub -l 2 -- $commandline) != './'
# If $dir is "." but commandline is not a relative path, this means no file path found
set fzf_query $commandline
else
# Also remove trailing slash after dir, to "split" input properly
@ -176,25 +178,7 @@ function fzf_key_bindings
end
end
echo -- $dir
string escape -- $fzf_query
echo -- $prefix
end
function __fzf_get_dir -d 'Find the longest existing filepath from input string'
set dir $argv
# Strip trailing slash, unless $dir is root dir (/)
set dir (string replace -r -- '(?<!^)/$' '' $dir)
# Iteratively check if dir exists and strip tail end of path
while test ! -d "$dir"
# If path is absolute, this can keep going until ends up at /
# If path is relative, this can keep going until entire input is consumed, dirname returns "."
set dir (dirname -- "$dir")
end
string escape -n -- $dir
string escape -n -- "$dir" "$fzf_query" "$prefix"
end
end