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
|
require 'thor/shell/basic'
class Thor
module Shell
# Inherit from Thor::Shell::Basic and add set_color behavior. Check
# Thor::Shell::Basic to see all available methods.
#
class HTML < Basic
# The start of an HTML bold sequence.
BOLD = "<strong>"
# The end of an HTML bold sequence.
END_BOLD = "</strong>"
# Embed in a String to clear previous color selection.
CLEAR = "</span>"
# Set the terminal's foreground HTML color to black.
BLACK = '<span style="color: black;">'
# Set the terminal's foreground HTML color to red.
RED = '<span style="color: red;">'
# Set the terminal's foreground HTML color to green.
GREEN = '<span style="color: green;">'
# Set the terminal's foreground HTML color to yellow.
YELLOW = '<span style="color: yellow;">'
# Set the terminal's foreground HTML color to blue.
BLUE = '<span style="color: blue;">'
# Set the terminal's foreground HTML color to magenta.
MAGENTA = '<span style="color: magenta;">'
# Set the terminal's foreground HTML color to cyan.
CYAN = '<span style="color: cyan;">'
# Set the terminal's foreground HTML color to white.
WHITE = '<span style="color: white;">'
# Set the terminal's background HTML color to black.
ON_BLACK = '<span style="background-color: black">'
# Set the terminal's background HTML color to red.
ON_RED = '<span style="background-color: red">'
# Set the terminal's background HTML color to green.
ON_GREEN = '<span style="background-color: green">'
# Set the terminal's background HTML color to yellow.
ON_YELLOW = '<span style="background-color: yellow">'
# Set the terminal's background HTML color to blue.
ON_BLUE = '<span style="background-color: blue">'
# Set the terminal's background HTML color to magenta.
ON_MAGENTA = '<span style="background-color: magenta">'
# Set the terminal's background HTML color to cyan.
ON_CYAN = '<span style="background-color: cyan">'
# Set the terminal's background HTML color to white.
ON_WHITE = '<span style="background-color: white">'
# Set color by using a string or one of the defined constants. If a third
# option is set to true, it also adds bold to the string. This is based
# on Highline implementation and it automatically appends CLEAR to the end
# of the returned String.
#
def set_color(string, color, bold=false)
color = self.class.const_get(color.to_s.upcase) if color.is_a?(Symbol)
bold, end_bold = bold ? [BOLD, END_BOLD] : ['', '']
"#{bold}#{color}#{string}#{CLEAR}#{end_bold}"
end
# Ask something to the user and receives a response.
#
# ==== Example
# ask("What is your name?")
#
# TODO: Implement #ask for Thor::Shell::HTML
def ask(statement, color=nil)
raise NotImplementedError, "Implement #ask for Thor::Shell::HTML"
end
protected
# Overwrite show_diff to show diff with colors if Diff::LCS is
# available.
#
def show_diff(destination, content) #:nodoc:
if diff_lcs_loaded? && ENV['THOR_DIFF'].nil? && ENV['RAILS_DIFF'].nil?
actual = File.binread(destination).to_s.split("\n")
content = content.to_s.split("\n")
Diff::LCS.sdiff(actual, content).each do |diff|
output_diff_line(diff)
end
else
super
end
end
def output_diff_line(diff) #:nodoc:
case diff.action
when '-'
say "- #{diff.old_element.chomp}", :red, true
when '+'
say "+ #{diff.new_element.chomp}", :green, true
when '!'
say "- #{diff.old_element.chomp}", :red, true
say "+ #{diff.new_element.chomp}", :green, true
else
say " #{diff.old_element.chomp}", nil, true
end
end
# Check if Diff::LCS is loaded. If it is, use it to create pretty output
# for diff.
#
def diff_lcs_loaded? #:nodoc:
return true if defined?(Diff::LCS)
return @diff_lcs_loaded unless @diff_lcs_loaded.nil?
@diff_lcs_loaded = begin
require 'diff/lcs'
true
rescue LoadError
false
end
end
end
end
end
|
