Class: File
- Inherits:
-
IO
show all
- Includes:
- Constants
- Defined in:
- mrbgems/mruby-io/src/file.c,
mrbgems/mruby-io/mrblib/file.rb,
mrbgems/mruby-io/mrblib/file_constants.rb,
mrbgems/mruby-io/mrblib/file_constants.rb more...
Defined Under Namespace
Modules: Constants
Constant Summary
Constants included
from Constants
Constants::APPEND, Constants::BINARY, Constants::CREAT, Constants::DSYNC, Constants::EXCL, Constants::FNM_CASEFOLD, Constants::FNM_DOTMATCH, Constants::FNM_NOESCAPE, Constants::FNM_PATHNAME, Constants::FNM_SYSCASE, Constants::NOCTTY, Constants::NOFOLLOW, Constants::NONBLOCK, Constants::RDONLY, Constants::RDWR, Constants::SYNC, Constants::TRUNC, Constants::WRONLY
Constants inherited
from IO
IO::BUF_SIZE, IO::SEEK_CUR, IO::SEEK_END, IO::SEEK_SET
Instance Attribute Summary collapse
Class Method Summary
collapse
Instance Method Summary
collapse
Methods inherited from IO
#<<, #_check_readable, #_read_buf, #close, #close_on_exec=, #close_on_exec?, #close_write, #closed?, #each, #each_byte, #eof?, #fileno, #flush, #getc, #gets, #hash, #initialize_copy, #isatty, open, #pid, pipe, popen, #pos, #pos=, #print, #printf, #puts, read, #read, #readchar, #readline, #readlines, #rewind, #seek, #sync, #sync=, #sysread, #sysseek, #syswrite, #ungetc, #write
Constructor Details
#initialize(fd_or_path, mode = "r", perm = 0666) ⇒ File
Returns a new instance of File
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# File 'mrbgems/mruby-io/mrblib/file.rb', line 4
def initialize(fd_or_path, mode = "r", perm = 0666)
if fd_or_path.kind_of? Fixnum
super(fd_or_path, mode)
else
@path = fd_or_path
fd = IO.sysopen(@path, mode, perm)
super(fd, mode)
end
end
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Instance Attribute Details
#path ⇒ Object
Returns the value of attribute path
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# File 'mrbgems/mruby-io/mrblib/file.rb', line 2
def path
@path
end
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Class Method Details
.directory?(file) ⇒ Boolean
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# File 'mrbgems/mruby-io/mrblib/file.rb', line 147
def self.directory?(file)
FileTest.directory?(file)
end
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.exist?(file) ⇒ Boolean
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# File 'mrbgems/mruby-io/mrblib/file.rb', line 151
def self.exist?(file)
FileTest.exist?(file)
end
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.exists?(file) ⇒ Boolean
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# File 'mrbgems/mruby-io/mrblib/file.rb', line 155
def self.exists?(file)
FileTest.exists?(file)
end
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.expand_path(path, default_dir = '.') ⇒ Object
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# File 'mrbgems/mruby-io/mrblib/file.rb', line 58
def self.expand_path(path, default_dir = '.')
def concat_path(path, base_path)
if path[0] == "/" || path[1] == ':' # Windows root!
expanded_path = path
elsif path[0] == "~"
if (path[1] == "/" || path[1] == nil)
dir = path[1, path.size]
home_dir = _gethome
unless home_dir
raise ArgumentError, "couldn't find HOME environment -- expanding '~'"
end
expanded_path = home_dir
expanded_path += dir if dir
expanded_path += "/"
else
splitted_path = path.split("/")
user = splitted_path[0][1, splitted_path[0].size]
dir = "/" + splitted_path[1, splitted_path.size].join("/")
home_dir = _gethome(user)
unless home_dir
raise ArgumentError, "user #{user} doesn't exist"
end
expanded_path = home_dir
expanded_path += dir if dir
expanded_path += "/"
end
else
expanded_path = concat_path(base_path, _getwd)
expanded_path += "/" + path
end
expanded_path
end
expanded_path = concat_path(path, default_dir)
drive_prefix = ""
if File::ALT_SEPARATOR && expanded_path.size > 2 &&
("A".."Z").include?(expanded_path[0].upcase) && expanded_path[1] == ":"
drive_prefix = expanded_path[0, 2]
expanded_path = expanded_path[2, expanded_path.size]
end
expand_path_array = []
if File::ALT_SEPARATOR && expanded_path.include?(File::ALT_SEPARATOR)
expanded_path.gsub!(File::ALT_SEPARATOR, '/')
end
while expanded_path.include?('//')
expanded_path = expanded_path.gsub('//', '/')
end
if expanded_path != "/"
expanded_path.split('/').each do |path_token|
if path_token == '..'
if expand_path_array.size > 1
expand_path_array.pop
end
elsif path_token == '.'
# nothing to do.
else
expand_path_array << path_token
end
end
expanded_path = expand_path_array.join("/")
if expanded_path.empty?
expanded_path = '/'
end
end
if drive_prefix.empty?
expanded_path
else
drive_prefix + expanded_path.gsub("/", File::ALT_SEPARATOR)
end
end
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.extname(filename) ⇒ Object
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# File 'mrbgems/mruby-io/mrblib/file.rb', line 187
def self.extname(filename)
fname = self.basename(filename)
return '' if fname[0] == '.' || fname.index('.').nil?
ext = fname.split('.').last
ext.empty? ? '' : ".#{ext}"
end
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.file?(file) ⇒ Boolean
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# File 'mrbgems/mruby-io/mrblib/file.rb', line 159
def self.file?(file)
FileTest.file?(file)
end
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.foreach(file) ⇒ Object
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# File 'mrbgems/mruby-io/mrblib/file.rb', line 137
def self.foreach(file)
if block_given?
self.open(file) do |f|
f.each {|l| yield l}
end
else
return self.new(file)
end
end
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.join(*names) ⇒ Object
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# File 'mrbgems/mruby-io/mrblib/file.rb', line 14
def self.join(*names)
return "" if names.empty?
names.map! do |name|
case name
when String
name
when Array
if names == name
raise ArgumentError, "recursive array"
end
join(*name)
else
raise TypeError, "no implicit conversion of #{name.class} into String"
end
end
return names[0] if names.size == 1
if names[0][-1] == File::SEPARATOR
s = names[0][0..-2]
else
s = names[0].dup
end
(1..names.size-2).each { |i|
t = names[i]
if t[0] == File::SEPARATOR and t[-1] == File::SEPARATOR
t = t[1..-2]
elsif t[0] == File::SEPARATOR
t = t[1..-1]
elsif t[-1] == File::SEPARATOR
t = t[0..-2]
end
s += File::SEPARATOR + t if t != ""
}
if names[-1][0] == File::SEPARATOR
s += File::SEPARATOR + names[-1][1..-1]
else
s += File::SEPARATOR + names[-1]
end
s
end
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.path(filename) ⇒ Object
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# File 'mrbgems/mruby-io/mrblib/file.rb', line 194
def self.path(filename)
if filename.kind_of?(String)
filename
elsif filename.respond_to?(:to_path)
filename.to_path
else
raise TypeError, "no implicit conversion of #{filename.class} into String"
end
end
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.pipe?(file) ⇒ Boolean
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# File 'mrbgems/mruby-io/mrblib/file.rb', line 163
def self.pipe?(file)
FileTest.pipe?(file)
end
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.size(file) ⇒ Object
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# File 'mrbgems/mruby-io/mrblib/file.rb', line 167
def self.size(file)
FileTest.size(file)
end
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.size?(file) ⇒ Boolean
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# File 'mrbgems/mruby-io/mrblib/file.rb', line 171
def self.size?(file)
FileTest.size?(file)
end
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.socket?(file) ⇒ Boolean
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# File 'mrbgems/mruby-io/mrblib/file.rb', line 175
def self.socket?(file)
FileTest.socket?(file)
end
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.symlink?(file) ⇒ Boolean
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# File 'mrbgems/mruby-io/mrblib/file.rb', line 179
def self.symlink?(file)
FileTest.symlink?(file)
end
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.zero?(file) ⇒ Boolean
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# File 'mrbgems/mruby-io/mrblib/file.rb', line 183
def self.zero?(file)
FileTest.zero?(file)
end
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Instance Method Details
#concat_path(path, base_path) ⇒ Object
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# File 'mrbgems/mruby-io/mrblib/file.rb', line 59
def concat_path(path, base_path)
if path[0] == "/" || path[1] == ':' # Windows root!
expanded_path = path
elsif path[0] == "~"
if (path[1] == "/" || path[1] == nil)
dir = path[1, path.size]
home_dir = _gethome
unless home_dir
raise ArgumentError, "couldn't find HOME environment -- expanding '~'"
end
expanded_path = home_dir
expanded_path += dir if dir
expanded_path += "/"
else
splitted_path = path.split("/")
user = splitted_path[0][1, splitted_path[0].size]
dir = "/" + splitted_path[1, splitted_path.size].join("/")
home_dir = _gethome(user)
unless home_dir
raise ArgumentError, "user #{user} doesn't exist"
end
expanded_path = home_dir
expanded_path += dir if dir
expanded_path += "/"
end
else
expanded_path = concat_path(base_path, _getwd)
expanded_path += "/" + path
end
expanded_path
end
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#flock ⇒ Object
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# File 'mrbgems/mruby-io/src/file.c', line 353
mrb_value
mrb_file_flock(mrb_state *mrb, mrb_value self)
{
#if defined(sun)
mrb_raise(mrb, E_NOTIMP_ERROR, "flock is not supported on Illumos/Solaris/Windows");
#else
mrb_int operation;
int fd;
mrb_get_args(mrb, "i", &operation);
fd = (int)mrb_fixnum(mrb_io_fileno(mrb, self));
while (flock(fd, (int)operation) == -1) {
switch (errno) {
case EINTR:
/* retry */
break;
case EAGAIN: /* NetBSD */
#if defined(EWOULDBLOCK) && EWOULDBLOCK != EAGAIN
case EWOULDBLOCK: /* FreeBSD OpenBSD Linux */
#endif
if (operation & LOCK_NB) {
return mrb_false_value();
}
/* FALLTHRU - should not happen */
default:
mrb_sys_fail(mrb, "flock failed");
break;
}
}
#endif
return mrb_fixnum_value(0);
}
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#mtime ⇒ Object
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# File 'mrbgems/mruby-io/src/file.c', line 339
static mrb_value
mrb_file_mtime(mrb_state *mrb, mrb_value self)
{
mrb_value obj;
struct stat st;
int fd;
obj = mrb_obj_value(mrb_class_get(mrb, "Time"));
fd = (int)mrb_fixnum(mrb_io_fileno(mrb, self));
if (fstat(fd, &st) == -1)
return mrb_false_value();
return mrb_funcall(mrb, obj, "at", 1, mrb_fixnum_value(st.st_mtime));
}
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