Class: File
- Inherits:
-
IO
show all
- Defined in:
- opal/opal/corelib/file.rb
Constant Summary
- Separator =
SEPARATOR = '/'
- ALT_SEPARATOR =
nil
- PATH_SEPARATOR =
':'
- FNM_SYSCASE =
Assuming case insenstive filesystem
0
Constants inherited
from IO
IO::SEEK_CUR, IO::SEEK_END, IO::SEEK_SET
Instance Attribute Summary
Attributes inherited from IO
#sync, #tty, #write_proc
Class Method Summary
collapse
Methods inherited from IO
#closed?, #flush, #tty?, #write
Class Method Details
.absolute_path(path, basedir = nil) ⇒ Object
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# File 'opal/opal/corelib/file.rb', line 10
def absolute_path(path, basedir = nil)
sep = SEPARATOR
sep_chars = `$sep_chars()`
new_parts = []
path = path.respond_to?(:to_path) ? path.to_path : path
basedir ||= Dir.pwd
path_abs = `path.substr(0, sep.length) === sep || windows_root_rx.test(path)`
basedir_abs = `basedir.substr(0, sep.length) === sep || windows_root_rx.test(basedir)`
if path_abs
parts = path.split(/[#{sep_chars}]/)
leading_sep = `windows_root_rx.test(path) ? '' : #{path.sub(/^([#{sep_chars}]+).*$/, '\1')}`
abs = true
else
parts = basedir.split(/[#{sep_chars}]/) + path.split(/[#{sep_chars}]/)
leading_sep = `windows_root_rx.test(basedir) ? '' : #{basedir.sub(/^([#{sep_chars}]+).*$/, '\1')}`
abs = basedir_abs
end
%x{
var part;
for (var i = 0, ii = parts.length; i < ii; i++) {
part = parts[i];
if (
(part === nil) ||
(part === '' && ((new_parts.length === 0) || abs)) ||
(part === '.' && ((new_parts.length === 0) || abs))
) {
continue;
}
if (part === '..') {
new_parts.pop();
} else {
new_parts.push(part);
}
}
if (!abs && parts[0] !== '.') {
#{new_parts.unshift '.'}
}
}
new_path = new_parts.join(sep)
new_path = leading_sep + new_path if abs
new_path
end
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.basename(name, suffix = nil) ⇒ Object
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# File 'opal/opal/corelib/file.rb', line 117
def basename(name, suffix = nil)
sep_chars = `$sep_chars()`
name = `$coerce_to_path(name)`
%x{
if (name.length == 0) {
return name;
}
if (suffix !== nil) {
suffix = #{Opal.coerce_to!(suffix, String, :to_str)}
} else {
suffix = null;
}
name = name.replace(new RegExp(#{"(.)[#{sep_chars}]*$"}), '$1');
name = name.replace(new RegExp(#{"^(?:.*[#{sep_chars}])?([^#{sep_chars}]+)$"}), '$1');
if (suffix === ".*") {
name = name.replace(/\.[^\.]+$/, '');
} else if(suffix !== null) {
suffix = Opal.escape_regexp(suffix);
name = name.replace(new RegExp(#{"#{suffix}$"}), '');
}
return name;
}
end
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.directory?(path) ⇒ Boolean
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# File 'opal/opal/corelib/file.rb', line 159
def directory?(path)
files = []
%x{
for (var key in Opal.modules) {
#{files}.push(key)
}
}
path = path.gsub(/(^.#{SEPARATOR}+|#{SEPARATOR}+$)/)
file = files.find { |f| f =~ /^#{path}/ }
file
end
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.dirname(path) ⇒ Object
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# File 'opal/opal/corelib/file.rb', line 99
def dirname(path)
sep_chars = `$sep_chars()`
path = `$coerce_to_path(path)`
%x{
var absolute = path.match(new RegExp(#{"^[#{sep_chars}]"}));
path = path.replace(new RegExp(#{"[#{sep_chars}]+$"}), ''); // remove trailing separators
path = path.replace(new RegExp(#{"[^#{sep_chars}]+$"}), ''); // remove trailing basename
path = path.replace(new RegExp(#{"[#{sep_chars}]+$"}), ''); // remove final trailing separators
if (path === '') {
return absolute ? '/' : '.';
}
return path;
}
end
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.exist?(path) ⇒ Boolean
Also known as:
exists?
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# File 'opal/opal/corelib/file.rb', line 154
def exist?(path)
`Opal.modules[#{path}] != null`
end
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.expand_path(path, basedir = nil) ⇒ Object
Also known as:
realpath
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# File 'opal/opal/corelib/file.rb', line 59
def expand_path(path, basedir = nil)
sep = SEPARATOR
sep_chars = `$sep_chars()`
if `path[0] === '~' || (basedir && basedir[0] === '~')`
home = Dir.home
raise(ArgumentError, "couldn't find HOME environment -- expanding `~'") unless home
leading_sep = `windows_root_rx.test(home) ? '' : #{home.sub(/^([#{sep_chars}]+).*$/, '\1')}`
raise(ArgumentError, 'non-absolute home') unless home.start_with?(leading_sep)
home += sep
home_path_regexp = /^\~(?:#{sep}|$)/
path = path.sub(home_path_regexp, home)
basedir = basedir.sub(home_path_regexp, home) if basedir
end
absolute_path(path, basedir)
end
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.extname(path) ⇒ Object
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# File 'opal/opal/corelib/file.rb', line 145
def extname(path)
`path = $coerce_to_path(path)`
filename = basename(path)
return '' if filename.empty?
last_dot_idx = filename[1..-1].rindex('.')
last_dot_idx.nil? || last_dot_idx + 1 == filename.length - 1 ? '' : filename[(last_dot_idx + 1)..-1]
end
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.join(*paths) ⇒ Object
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# File 'opal/opal/corelib/file.rb', line 171
def join(*paths)
if paths.empty?
return ''
end
result = ''
paths = paths.flatten.each_with_index.map do |item, index|
if index == 0 && item.empty?
SEPARATOR
elsif paths.length == index + 1 && item.empty?
SEPARATOR
else
item
end
end
paths = paths.reject(&:empty?)
paths.each_with_index do |item, index|
next_item = paths[index + 1]
if next_item.nil?
result = "#{result}#{item}"
else
if item.end_with?(SEPARATOR) && next_item.start_with?(SEPARATOR)
item = item.sub(/#{SEPARATOR}+$/, '')
end
result = if item.end_with?(SEPARATOR) || next_item.start_with?(SEPARATOR)
"#{result}#{item}"
else
"#{result}#{item}#{SEPARATOR}"
end
end
end
result
end
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.split(path) ⇒ Object
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# File 'opal/opal/corelib/file.rb', line 204
def split(path)
path.split(SEPARATOR)
end
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