jekyll/lib/jekyll/static_file.rb

71 lines
1.6 KiB
Ruby

module Jekyll
class StaticFile
# The cache of last modification times [path] -> mtime.
@@mtimes = Hash.new
# Initialize a new StaticFile.
#
# site - The Site.
# base - The String path to the <source>.
# dir - The String path between <source> and the file.
# name - The String filename of the file.
def initialize(site, base, dir, name)
@site = site
@base = base
@dir = dir
@name = name
end
# Returns source file path.
def path
File.join(@base, @dir, @name)
end
# Obtain destination path.
#
# dest - The String path to the destination dir.
#
# Returns destination file path.
def destination(dest)
File.join(dest, @dir, @name)
end
# Returns last modification time for this file.
def mtime
File.stat(path).mtime.to_i
end
# Is source path modified?
#
# Returns true if modified since last write.
def modified?
@@mtimes[path] != mtime
end
# Write the static file to the destination directory (if modified).
#
# dest - The String path to the destination dir.
#
# Returns false if the file was not modified since last time (no-op).
def write(dest)
dest_path = destination(dest)
return false if File.exist?(dest_path) and !modified?
@@mtimes[path] = mtime
FileUtils.mkdir_p(File.dirname(dest_path))
FileUtils.cp(path, dest_path)
true
end
# Reset the mtimes cache (for testing purposes).
#
# Returns nothing.
def self.reset_cache
@@mtimes = Hash.new
nil
end
end
end