Repository navigation
Expand file tree
/
Copy pathminify.go
More file actions
172 lines (154 loc) · 5.17 KB
/
Copy pathminify.go
File metadata and controls
172 lines (154 loc) · 5.17 KB
10BC8
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
package main
import "C"
import (
"fmt"
"os"
"regexp"
"strconv"
"unsafe"
"github.com/tdewolff/minify/v2"
"github.com/tdewolff/minify/v2/css"
"github.com/tdewolff/minify/v2/html"
"github.com/tdewolff/minify/v2/js"
"github.com/tdewolff/minify/v2/json"
"github.com/tdewolff/minify/v2/svg"
"github.com/tdewolff/minify/v2/xml"
"github.com/tdewolff/parse/v2/buffer"
)
var m *minify.M
func init() {
minifyConfig(nil, nil, 0)
}
func goBytes(str *C.char, length, capacity C.longlong) []byte {
// somehow address space on 32-bit system is smaller than 1<<30
return (*[1 << 28]byte)(unsafe.Pointer(str))[:length:capacity]
}
func goStringArray(carr **C.char, length C.longlong) []string {
if length == 0 {
return []string{}
}
strs := make([]string, length)
arr := unsafe.Slice(carr, length)
for i := 0; i < int(length); i++ {
strs[i] = C.GoString(arr[i])
}
return strs
}
//export minifyConfig
func minifyConfig(ckeys **C.char, cvals **C.char, length C.longlong) *C.char {
keys := goStringArray(ckeys, length)
vals := goStringArray(cvals, length)
cssMinifier := &css.Minifier{}
htmlMinifier := &html.Minifier{}
jsMinifier := &js.Minifier{}
jsonMinifier := &json.Minifier{}
svgMinifier := &svg.Minifier{}
xmlMinifier := &xml.Minifier{}
var err error
for i := 0; i < len(keys); i++ {
switch keys[i] {
case "css-precision":
var precision int64
precision, err = strconv.ParseInt(vals[i], 10, 64)
cssMinifier.Precision = int(precision)
case "html-keep-comments":
htmlMinifier.KeepComments, err = strconv.ParseBool(vals[i])
case "html-keep-conditional-comments":
htmlMinifier.KeepConditionalComments, err = strconv.ParseBool(vals[i])
case "html-keep-special-comments":
htmlMinifier.KeepSpecialComments, err = strconv.ParseBool(vals[i])
case "html-keep-default-attr-vals":
htmlMinifier.KeepDefaultAttrVals, err = strconv.ParseBool(vals[i])
case "html-keep-document-tags":
htmlMinifier.KeepDocumentTags, err = strconv.ParseBool(vals[i])
case "html-keep-end-tags":
htmlMinifier.KeepEndTags, err = strconv.ParseBool(vals[i])
case "html-keep-whitespace":
htmlMinifier.KeepWhitespace, err = strconv.ParseBool(vals[i])
case "html-keep-quotes":
htmlMinifier.KeepQuotes, err = strconv.ParseBool(vals[i])
case "js-precision":
var precision int64
precision, err = strconv.ParseInt(vals[i], 10, 64)
jsMinifier.Precision = int(precision)
case "js-keep-var-names":
jsMinifier.KeepVarNames, err = strconv.ParseBool(vals[i])
case "js-version":
var version int64
version, err = strconv.ParseInt(vals[i], 10, 64)
jsMinifier.Version = int(version)
case "json-precision":
var precision int64
precision, err = strconv.ParseInt(vals[i], 10, 64)
jsonMinifier.Precision = int(precision)
case "json-keep-numbers":
jsonMinifier.KeepNumbers, err = strconv.ParseBool(vals[i])
case "svg-keep-comments":
svgMinifier.KeepComments, err = strconv.ParseBool(vals[i])
case "svg-precision":
var precision int64
precision, err = strconv.ParseInt(vals[i], 10, 64)
svgMinifier.Precision = int(precision)
case "xml-keep-whitespace":
xmlMinifier.KeepWhitespace, err = strconv.ParseBool(vals[i])
default:
return C.CString(fmt.Sprintf("unknown config key: %s", keys[i]))
}
if err != nil {
if err.(*strconv.NumError).Func == "ParseInt" {
err = fmt.Errorf("\"%s\" is not an integer", vals[i])
} else if err.(*strconv.NumError).Func == "ParseBool" {
err = fmt.Errorf("\"%s\" is not a boolean", vals[i])
}
return C.CString(fmt.Sprintf("bad config value for %s: %v", keys[i], err))
}
}
m = minify.New()
m.Add("text/css", cssMinifier)
m.Add("text/html", htmlMinifier)
m.Add("image/svg+xml", svgMinifier)
m.AddRegexp(regexp.MustCompile("^(application|text)/(x-)?(java|ecma|j|live)script(1\\.[0-5])?$|^module$"), jsMinifier)
m.AddRegexp(regexp.MustCompile("[/+]json$"), jsonMinifier)
m.AddRegexp(regexp.MustCompile("[/+]xml$"), xmlMinifier)
return nil
}
//export minifyString
func minifyString(cmediatype, cinput *C.char, input_length C.longlong, coutput *C.char, output_length *C.longlong) *C.char {
mediatype := C.GoString(cmediatype) // copy
input := goBytes(cinput, input_length, input_length+1) // +1 for NULL byte used in parser
output := goBytes(coutput, input_length, input_length)
out := buffer.NewStaticWriter(output[:0])
if err := m.Minify(mediatype, out, buffer.NewReader(input)); err != nil {
return C.CString(err.Error())
} else if err := out.Close(); err != nil {
return C.CString(err.Error())
}
*output_length = C.longlong(out.Len())
return nil
}
//export minifyFile
func minifyFile(cmediatype, cinput, coutput *C.char) *C.char {
mediatype := C.GoString(cmediatype) // copy
input := C.GoString(cinput)
output := C.GoString(coutput)
fi, err := os.Open(input)
if err != nil {
return C.CString(err.Error())
}
fo, err := os.Create(output)
if err != nil {
return C.CString(err.Error())
}
if err := m.Minify(mediatype, fo, fi); err != nil {
fi.Close()
fo.Close()
return C.CString(err.Error())
} else if err := fi.Close(); err != nil {
fo.Close()
return C.CString(err.Error())
} else if err := fo.Close(); err != nil {
return C.CString(err.Error())
}
return nil
}
func main() {}