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Refactoring
This commit is contained in:
Junegunn Choi
parent
abd07ffb9e
commit
7f2ffb9746
@ -107,7 +107,9 @@ Useful bash examples
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```sh
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# vimf - Open selected file in Vim
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alias vimf='vim `fzf`'
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vimf() {
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FILE=`fzf` && vim "$FILE"
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}
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# fd - cd to selected directory
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fd() {
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151
fzf
151
fzf
@ -1,5 +1,5 @@
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#!/usr/bin/env bash
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# vim: set filetype=ruby isk=@,48-57,_,192-255:
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#!/usr/bin/env bash
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#
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# ____ ____
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# / __/___ / __/
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@ -40,27 +40,31 @@ exec /usr/bin/env ruby -x "$0" $* 3>&1 1>&2 2>&3
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# encoding: utf-8
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require 'thread'
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require 'ostruct'
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require 'curses'
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MAX_SORT_LEN = 500
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C = Curses
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@main = Thread.current
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@new = []
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@lists = []
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@query = ''
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@mtx = Mutex.new
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@smtx = Mutex.new
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@cv = ConditionVariable.new
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@lists = []
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@new = []
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@query = ''
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@matches = []
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@count = 0
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@cursor_x = 0
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@vcursor = 0
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@matches = []
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@loaded = false
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@events = {}
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@sort = ARGV.delete('--no-sort').nil?
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@stat = OpenStruct.new(:hit => 0, :partial_hit => 0,
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:prefix_hit => 0, :search => 0)
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@stat = { :hit => 0, :partial_hit => 0, :prefix_hit => 0, :search => 0 }
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def emit event
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@mtx.synchronize do
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@events[event] = yield
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@cv.broadcast
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end
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end
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def max_items; C.lines - 2; end
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def cursor_y; C.lines - 1; end
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@ -148,59 +152,45 @@ C.init_pair 5, C::COLOR_CYAN, C::COLOR_BLACK
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reader = Thread.new {
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while line = @read.gets
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@mtx.synchronize do
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@new << line.chomp
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@cv.broadcast
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end
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end
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@mtx.synchronize do
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@loaded = true
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@cv.broadcast
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emit(:new) { @new << line.chomp }
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end
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emit(:loaded) { true }
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@smtx.synchronize { @fan = [] }
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}
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main = Thread.current
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searcher = Thread.new {
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fcache = {}
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matches = []
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new_length = 0
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pquery = ''
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pvcursor = 0
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ploaded = false
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plength = 0
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zz = [0, 0]
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events = {}
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fcache = {}
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matches = []
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mcount = 0 # match count
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plcount = 0 # prev list count
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q = ''
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vcursor = 0
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zz = [0, 0]
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begin
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while true
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query_changed = nil
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new_items = nil
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vcursor_moved = nil
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wait_for_completion = nil
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@mtx.synchronize do
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while true
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new_items = !@new.empty?
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query_changed = pquery != @query
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vcursor_moved = pvcursor != @vcursor
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loading_finished = ploaded != @loaded
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wait_for_completion = !@sort && !@loaded
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events.merge! @events
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wait_for_completion = !@sort && !events[:loaded]
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if !new_items && !query_changed && !vcursor_moved && !loading_finished
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if @events.empty? # No new events
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@cv.wait @mtx
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next
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end
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@events.clear
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break
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end
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if !wait_for_completion && new_items
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if !wait_for_completion && events[:new]
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@lists << [@new, {}]
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@count += @new.length
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@new = []
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fcache = {}
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end
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pquery = @query
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pvcursor = @vcursor
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ploaded = @loaded
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end#mtx
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if wait_for_completion
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@ -213,41 +203,45 @@ searcher = Thread.new {
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next
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end
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new_search = new_items || query_changed
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new_search = events[:key] || events[:new]
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user_input = events[:key] || events[:vcursor]
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if new_search && !@lists.empty?
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regexp = pquery.empty? ? nil :
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Regexp.new(pquery.split(//).inject('') { |sum, e|
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events.delete :new
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q = events.delete(:key) || q
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regexp = q.empty? ? nil :
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Regexp.new(q.split(//).inject('') { |sum, e|
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e = Regexp.escape e
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sum << "#{e}[^#{e}]*?"
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}, Regexp::IGNORECASE)
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matches =
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if fcache.has_key?(pquery)
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@stat.hit += 1
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fcache[pquery]
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if fcache.has_key?(q)
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@stat[:hit] += 1
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fcache[q]
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else
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@smtx.synchronize do
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print_info true, ' ..'
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refresh
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end unless pquery.empty?
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end unless q.empty?
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found = @lists.map { |pair|
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list, cache = pair
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if cache[pquery]
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@stat.partial_hit += 1
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cache[pquery]
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if cache[q]
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@stat[:partial_hit] += 1
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cache[q]
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else
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prefix_cache = nil
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(pquery.length - 1).downto(1) do |len|
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prefix = pquery[0, len]
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(q.length - 1).downto(1) do |len|
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prefix = q[0, len]
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if prefix_cache = cache[prefix]
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@stat.prefix_hit += 1
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@stat[:prefix_hit] += 1
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break
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end
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end
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cache[pquery] ||= (prefix_cache ? prefix_cache.map { |e| e.first } : list).map { |line|
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cache[q] ||= (prefix_cache ? prefix_cache.map { |e| e.first } : list).map { |line|
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if regexp
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# Ignore errors: e.g. invalid byte sequence in UTF-8
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md = line.match(regexp) rescue nil
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@ -258,12 +252,12 @@ searcher = Thread.new {
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}.compact
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end
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}.inject([]) { |all, e| all.concat e }
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fcache[pquery] = @sort ? found : found.reverse
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fcache[q] = @sort ? found : found.reverse
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end
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@stat.search += 1
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@stat[:search] += 1
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new_length = matches.length
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if @sort && new_length <= MAX_SORT_LEN
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mcount = matches.length
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if @sort && mcount <= MAX_SORT_LEN
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matches.replace matches.sort_by { |pair|
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line, offset = pair
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[offset.last - offset.first, line.length, line]
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@ -272,21 +266,21 @@ searcher = Thread.new {
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end#new_search
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# This small delay reduces the number of partial lists
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sleep 0.2 if !query_changed && !vcursor_moved
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sleep 0.2 unless user_input
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if vcursor_moved || new_search
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if events.delete(:vcursor) || new_search
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@mtx.synchronize do
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plength = [@matches.length, max_items].min
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plcount = [@matches.length, max_items].min
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@matches = matches
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pvcursor = @vcursor = [0, [@vcursor, new_length - 1, max_items - 1].min].max
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vcursor = @vcursor = [0, [@vcursor, mcount - 1, max_items - 1].min].max
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end
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end
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# Output
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@smtx.synchronize do
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item_length = [new_length, max_items].min
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if item_length < plength
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plength.downto(item_length) do |idx|
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item_length = [mcount, max_items].min
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if item_length < plcount
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plcount.downto(item_length) do |idx|
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C.setpos cursor_y - idx - 2, 0
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C.clrtoeol
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end
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@ -294,11 +288,11 @@ searcher = Thread.new {
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maxc = C.cols - 3
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matches[0, max_items].each_with_index do |item, idx|
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next if !new_search && !((pvcursor-1)..(pvcursor+1)).include?(idx)
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next if !new_search && !((vcursor-1)..(vcursor+1)).include?(idx)
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line, offset = item
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row = cursor_y - idx - 2
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chosen = idx == pvcursor
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chosen = idx == vcursor
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if line.length > maxc
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line = line[0, maxc] + '..'
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@ -321,13 +315,13 @@ searcher = Thread.new {
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C.attroff C.color_pair(3) | C::A_BOLD if chosen
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end
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print_info if !@lists.empty? || ploaded
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print_info if !@lists.empty? || events[:loaded]
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print_input
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refresh
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end
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end
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rescue Exception => e
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@main.raise e
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main.raise e
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end
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}
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@ -349,18 +343,8 @@ begin
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ctrl(:u) => proc { input = input[cursor..-1]; cursor = 0 },
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ctrl(:a) => proc { cursor = 0 },
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ctrl(:e) => proc { cursor = input.length },
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ctrl(:j) => proc {
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@mtx.synchronize do
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@vcursor -= 1
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@cv.broadcast
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end
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},
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ctrl(:k) => proc {
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@mtx.synchronize do
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@vcursor += 1
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@cv.broadcast
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end
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},
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ctrl(:j) => proc { emit(:vcursor) { @vcursor -= 1 } },
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ctrl(:k) => proc { emit(:vcursor) { @vcursor += 1 } },
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ctrl(:w) => proc {
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ridx = (input[0...cursor - 1].rindex(/\S\s/) || -2) + 2
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input = input[0...ridx] + input[cursor..-1]
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@ -400,10 +384,7 @@ begin
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}).call(ord)
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# Dispatch key event
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@mtx.synchronize do
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@query = input.dup
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@cv.broadcast
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end
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emit(:key) { @query = input.dup }
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# Update user input
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@smtx.synchronize do
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