9346
|
1 |
"
|
|
2 |
COPYRIGHT (c) 2009 by eXept Software AG
|
|
3 |
All Rights Reserved
|
|
4 |
|
|
5 |
This software is furnished under a license and may be used
|
|
6 |
only in accordance with the terms of that license and with the
|
|
7 |
inclusion of the above copyright notice. This software may not
|
|
8 |
be provided or otherwise made available to, or used by, any
|
|
9 |
other person. No title to or ownership of the software is
|
|
10 |
hereby transferred.
|
|
11 |
"
|
8933
|
12 |
"{ Package: 'stx:libtool' }"
|
|
13 |
|
|
14 |
Object subclass:#DiffListUtility
|
|
15 |
instanceVariableNames:''
|
|
16 |
classVariableNames:'DiffCommandTemplate'
|
|
17 |
poolDictionaries:''
|
|
18 |
category:'Views-Text'
|
|
19 |
!
|
|
20 |
|
|
21 |
!DiffListUtility class methodsFor:'documentation'!
|
|
22 |
|
9346
|
23 |
copyright
|
|
24 |
"
|
|
25 |
COPYRIGHT (c) 2009 by eXept Software AG
|
|
26 |
All Rights Reserved
|
|
27 |
|
|
28 |
This software is furnished under a license and may be used
|
|
29 |
only in accordance with the terms of that license and with the
|
|
30 |
inclusion of the above copyright notice. This software may not
|
|
31 |
be provided or otherwise made available to, or used by, any
|
|
32 |
other person. No title to or ownership of the software is
|
|
33 |
hereby transferred.
|
|
34 |
"
|
|
35 |
!
|
|
36 |
|
8933
|
37 |
documentation
|
|
38 |
"
|
|
39 |
a utility to encapsulate access to the diff command
|
9494
|
40 |
(may also be a facade to a smalltalk-diff algorithm, eventually)
|
8933
|
41 |
|
|
42 |
[author:]
|
|
43 |
cg (cg@CG-PC)
|
|
44 |
|
|
45 |
[instance variables:]
|
|
46 |
|
|
47 |
[class variables:]
|
|
48 |
|
|
49 |
[see also:]
|
|
50 |
|
|
51 |
"
|
|
52 |
! !
|
|
53 |
|
|
54 |
!DiffListUtility class methodsFor:'defaults'!
|
|
55 |
|
|
56 |
diffCommand
|
|
57 |
"return the diff-command (with argument placeHolders)"
|
|
58 |
|
|
59 |
DiffCommandTemplate notNil ifTrue:[ ^ DiffCommandTemplate ].
|
|
60 |
|
|
61 |
OperatingSystem isMSDOSlike ifTrue:[
|
|
62 |
(OperatingSystem canExecuteCommand:'diff') ifFalse:[
|
|
63 |
'DiffTextView [warning]: no diff command found (please download and unzip "UnxUtils.zip" from "unxutils.sourceforge.net")' infoPrintCR.
|
|
64 |
^ nil
|
|
65 |
].
|
|
66 |
^ 'diff %1 %2'
|
|
67 |
].
|
|
68 |
^ 'diff -b %1 %2'
|
|
69 |
|
|
70 |
"Modified: / 30.1.1998 / 12:12:49 / cg"
|
|
71 |
!
|
|
72 |
|
|
73 |
diffCommandTemplate:aCommandTemplateString
|
|
74 |
"set the diff-command template"
|
|
75 |
|
|
76 |
DiffCommandTemplate := aCommandTemplateString
|
|
77 |
! !
|
|
78 |
|
|
79 |
!DiffListUtility class methodsFor:'private'!
|
|
80 |
|
|
81 |
saveForDiff:text as:filename
|
|
82 |
|stream|
|
|
83 |
|
|
84 |
[
|
|
85 |
stream := filename writeStream.
|
|
86 |
text do:[:line |
|
|
87 |
|lOut i|
|
|
88 |
|
|
89 |
line notEmptyOrNil ifTrue:[
|
|
90 |
lOut := line.
|
|
91 |
(line includes:Character return) ifTrue: [
|
|
92 |
(line endsWith:Character return) ifTrue:[
|
|
93 |
lOut := line copyWithoutLast:1.
|
|
94 |
] ifFalse:[
|
|
95 |
i := line indexOf:Character return.
|
|
96 |
(line at:i+1) == Character nl ifTrue:[
|
|
97 |
"/ crnl endings
|
|
98 |
lOut := line copyReplaceString:(String crlf) withString:(String lf).
|
|
99 |
] ifFalse:[
|
|
100 |
"/ cr endings
|
|
101 |
lOut := line copyReplaceAll:Character return with:Character nl.
|
|
102 |
].
|
|
103 |
]
|
|
104 |
].
|
|
105 |
lOut bitsPerCharacter > 8 ifTrue:[
|
|
106 |
(lOut first = (Character value:16rFEFF)) ifTrue:[
|
|
107 |
lOut := (lOut copyFrom:2) asSingleByteStringIfPossible.
|
|
108 |
].
|
|
109 |
lOut bitsPerCharacter > 8 ifTrue:[
|
|
110 |
lOut := lOut collect:[:ch | ch bitsPerCharacter > 8
|
|
111 |
ifTrue:[ Character value:16rFF ]
|
|
112 |
ifFalse:[ ch ]].
|
|
113 |
lOut := lOut asSingleByteStringIfPossible.
|
|
114 |
].
|
|
115 |
].
|
|
116 |
stream nextPutAll:lOut.
|
|
117 |
].
|
|
118 |
stream cr
|
|
119 |
].
|
|
120 |
] ensure:[
|
|
121 |
stream close.
|
|
122 |
].
|
|
123 |
|
|
124 |
"Modified: / 22-10-2008 / 17:52:52 / cg"
|
|
125 |
! !
|
|
126 |
|
|
127 |
!DiffListUtility class methodsFor:'utilities'!
|
|
128 |
|
|
129 |
diffListFor:text1 and:text2
|
|
130 |
"execute DiffCommand to get a list of diffs."
|
|
131 |
|
|
132 |
"
|
|
133 |
The returned list is in raw-diff output format, such as:
|
|
134 |
1 : '1c1'
|
|
135 |
2 : '< hello world'
|
|
136 |
3 : '---'
|
|
137 |
4 : '> Hello World'
|
|
138 |
5 : '2a3'
|
|
139 |
6 : '> line2'
|
|
140 |
7 : '4d4'
|
|
141 |
8 : '< line4'
|
|
142 |
"
|
|
143 |
|
|
144 |
|tmpFile1 tmpFile2 stream line
|
|
145 |
diffList diffTemplate diffCmd|
|
|
146 |
|
|
147 |
diffTemplate := self diffCommand.
|
|
148 |
diffTemplate isNil ifTrue:[
|
|
149 |
"/ self warn:'no diff command available'.
|
|
150 |
^ nil
|
|
151 |
].
|
|
152 |
|
|
153 |
text1 = text2 ifTrue:[
|
|
154 |
"no diff"
|
|
155 |
^ #()
|
|
156 |
].
|
|
157 |
|
|
158 |
"
|
|
159 |
save them texts in two temporary files ...
|
|
160 |
"
|
|
161 |
[
|
|
162 |
self saveForDiff:text1 as:(tmpFile1 := Filename newTemporary).
|
|
163 |
self saveForDiff:text2 as:(tmpFile2 := Filename newTemporary).
|
|
164 |
|
|
165 |
"
|
|
166 |
start diff on it ...
|
|
167 |
"
|
|
168 |
diffCmd := diffTemplate
|
|
169 |
bindWith:tmpFile1 asString
|
|
170 |
with:tmpFile2 asString.
|
|
171 |
|
|
172 |
stream := PipeStream readingFrom:diffCmd.
|
|
173 |
stream isNil ifTrue:[
|
|
174 |
stream := PipeStream readingFrom:('support' , Filename separator , diffCmd).
|
|
175 |
stream isNil ifTrue:[
|
|
176 |
self error:'cannot execute diff' mayProceed:true.
|
|
177 |
^ nil.
|
|
178 |
]
|
|
179 |
].
|
|
180 |
|
|
181 |
diffList := OrderedCollection new.
|
|
182 |
(stream readWaitWithTimeout:10) ifTrue:[
|
|
183 |
"/ timeout
|
|
184 |
stream close.
|
|
185 |
self error:'cannot execute diff (timeout)' mayProceed:true.
|
|
186 |
^ nil.
|
|
187 |
].
|
|
188 |
|
|
189 |
[stream atEnd] whileFalse:[
|
|
190 |
line := stream nextLine.
|
|
191 |
line notNil ifTrue:[diffList add:line]
|
|
192 |
].
|
|
193 |
stream close.
|
|
194 |
] ensure:[
|
|
195 |
tmpFile1 notNil ifTrue:[ tmpFile1 delete ].
|
|
196 |
tmpFile2 notNil ifTrue:[ tmpFile2 delete ].
|
|
197 |
].
|
|
198 |
^ diffList
|
|
199 |
|
|
200 |
"
|
|
201 |
self
|
|
202 |
diffListFor:#(
|
|
203 |
'hello world'
|
|
204 |
'line1'
|
|
205 |
'line3'
|
|
206 |
'line4'
|
|
207 |
)
|
|
208 |
and: #(
|
|
209 |
'Hello World'
|
|
210 |
'line1'
|
|
211 |
'line2'
|
|
212 |
'line3'
|
|
213 |
)
|
|
214 |
"
|
|
215 |
! !
|
|
216 |
|
|
217 |
!DiffListUtility class methodsFor:'documentation'!
|
|
218 |
|
|
219 |
version_CVS
|
9494
|
220 |
^ '$Header: /cvs/stx/stx/libtool/DiffListUtility.st,v 1.3 2010-05-20 09:38:12 cg Exp $'
|
8933
|
221 |
! !
|