Sha256: 095ffaa197eb133fb9a81d3458e62905ae994eeb2bd46c9ff62d04a8e0adde44
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Size: 1.81 KB
Versions: 36
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Stored size: 1.81 KB
Contents
class Pry
# The History class is responsible for maintaining the user's input history, both
# internally and within Readline::HISTORY.
class History
def initialize
@history = []
@saved_lines = 0
end
# Loads a file's contents into the input history.
# @param [String] filename
# @return [Integer] The number of lines loaded
def load(filename)
File.foreach(filename) do |line|
Readline::HISTORY << line.chomp
@history << line.chomp
end
@saved_lines = @history.length
end
# Appends input history from this session to a file.
# @param [String] filename
# @return [Integer] The number of lines saved
def save(filename)
history_to_save = @history[@saved_lines..-1]
File.open(filename, 'a') do |f|
history_to_save.each { |ln| f.puts ln }
end
@saved_lines = @history.length
history_to_save.length
end
# Adds a line to the input history, ignoring blank and duplicate lines.
# @param [String] line
# @return [String] The same line that was passed in
def push(line)
unless line.empty? || (@history.last && line.strip == @history.last.strip)
Readline::HISTORY << line
@history << line
end
line
end
alias << push
# Clears all history. Anything the user entered before this point won't be
# saved, but anything they put in afterwards will still be appended to the
# history file on exit.
def clear
Readline::HISTORY.shift until Readline::HISTORY.empty?
@history = []
@saved_lines = 0
end
# Returns an Array containing all stored history.
# @return [Array<String>] An Array containing all lines of history loaded
# or entered by the user in the current session.
def to_a
@history.dup
end
end
end
Version data entries
36 entries across 36 versions & 1 rubygems