1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
class File < IO
include Enumerable
class FileError < Exception; end
class NoFileError < FileError; end
class UnableToStat < FileError; end
class PermissionError < FileError; end
attr_accessor :path
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
def self.join(*names)
if names.size == 0
""
elsif names.size == 1
names[0]
else
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
end
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)
expand_path_array = []
while expanded_path.include?('//')
expanded_path = expanded_path.gsub('//', '/')
end
if expanded_path == "/"
expanded_path
else
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
expand_path = expand_path_array.join("/")
expand_path.empty? ? '/' : expand_path
end
end
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
def self.directory?(file)
FileTest.directory?(file)
end
def self.exist?(file)
FileTest.exist?(file)
end
def self.exists?(file)
FileTest.exists?(file)
end
def self.file?(file)
FileTest.file?(file)
end
def self.pipe?(file)
FileTest.pipe?(file)
end
def self.size(file)
FileTest.size(file)
end
def self.size?(file)
FileTest.size?(file)
end
def self.socket?(file)
FileTest.socket?(file)
end
def self.symlink?(file)
FileTest.symlink?(file)
end
def self.zero?(file)
FileTest.zero?(file)
end
def self.extname(filename)
fname = self.basename(filename)
return '' if fname[0] == '.' || fname.index('.').nil?
ext = fname.split('.').last
ext.empty? ? '' : ".#{ext}"
end
end
|
