cli/float32.go at main · livebud/cli · GitHub

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
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
package cli

import (
	"fmt"
	"strconv"
	"strings"
)

type Float32 struct {
	target *float32
	envvar *string
	defval *float32
}

func (v *Float32) Default(value float32) {
	v.defval = &value
}

type float32Value struct {
	key   string
	inner *Float32
	set   bool
}

var _ value = (*float32Value)(nil)

func (v *float32Value) optional() bool {
	return false
}

func (v *float32Value) hasDefault() bool {
	return v.inner.defval != nil
}

func (v *float32Value) Default() (string, bool) {
	if v.inner.defval == nil {
		return "", false
	}
	return strconv.FormatFloat(float64(*v.inner.defval), 'f', -1, 32), true
}

func (v *float32Value) verify() error {
	if v.set {
		return nil
	} else if value, ok := lookupEnv(v.inner.envvar); ok {
		return v.Set(value)
	} else if v.hasDefault() {
		*v.inner.target = *v.inner.defval
		return nil
	}
	return &missingInputError{v.key, v.inner.envvar}
}

func (v *float32Value) Set(val string) error {
	n, err := strconv.ParseFloat(val, 32)
	if err != nil {
		return fmt.Errorf("%s: expected a float32 but got %q", v.key, val)
	}
	*v.inner.target = float32(n)
	v.set = true
	return nil
}

func (v *float32Value) String() string {
	if v.inner == nil {
		return ""
	} else if v.set {
		return strconv.FormatFloat(float64(*v.inner.target), 'f', -1, 32)
	} else if v.hasDefault() {
		return strconv.FormatFloat(float64(*v.inner.defval), 'f', -1, 32)
	}
	return ""
}

type OptionalFloat32 struct {
	target **float32
	envvar *string
	defval *float32
}

func (v *OptionalFloat32) Default(value float32) {
	v.defval = &value
}

type optionalFloat32Value struct {
	key   string
	inner *OptionalFloat32
	set   bool
}

var _ value = (*optionalFloat32Value)(nil)

func (v *optionalFloat32Value) optional() bool {
	return true
}

func (v *optionalFloat32Value) hasDefault() bool {
	return v.inner.defval != nil
}

func (v *optionalFloat32Value) Default() (string, bool) {
	if v.inner.defval == nil {
		return "", false
	}
	return strconv.FormatFloat(float64(*v.inner.defval), 'f', -1, 32), true
}

func (v *optionalFloat32Value) verify() error {
	if v.set {
		return nil
	} else if value, ok := lookupEnv(v.inner.envvar); ok {
		return v.Set(value)
	} else if v.hasDefault() {
		*v.inner.target = v.inner.defval
		return nil
	}
	return nil
}

func (v *optionalFloat32Value) Set(val string) error {
	n, err := strconv.ParseFloat(val, 32)
	if err != nil {
		return fmt.Errorf("%s: expected a float32 but got %q", v.key, val)
	}
	f := float32(n)
	*v.inner.target = &f
	v.set = true
	return nil
}

func (v *optionalFloat32Value) String() string {
	if v.inner == nil {
		return ""
	} else if v.set {
		return strconv.FormatFloat(float64(**v.inner.target), 'f', -1, 32)
	} else if v.hasDefault() {
		return strconv.FormatFloat(float64(*v.inner.defval), 'f', -1, 32)
	}
	return ""
}

type Float32s struct {
	target   *[]float32
	envvar   *string
	defval   *[]float32
	optional bool
}

func (v *Float32s) Default(values ...float32) {
	v.defval = &values
}

type float32sValue struct {
	key   string
	inner *Float32s
	set   bool
}

var _ value = (*float32sValue)(nil)

func (v *float32sValue) optional() bool {
	return v.inner.optional
}

func (v *float32sValue) hasDefault() bool {
	return v.inner.defval != nil
}

func (v *float32sValue) Default() (string, bool) {
	if v.inner.defval == nil {
		return "", false
	}
	if len(*v.inner.defval) == 0 {
		return "[]", true
	}
	strs := make([]string, len(*v.inner.defval))
	for i, f := range *v.inner.defval {
		strs[i] = strconv.FormatFloat(float64(f), 'f', -1, 32)
	}
	return strings.Join(strs, ", "), true
}

func (v *float32sValue) verify() error {
	if v.set {
		return nil
	} else if value, ok := lookupEnv(v.inner.envvar); ok {
		return v.Set(value)
	} else if v.hasDefault() {
		*v.inner.target = *v.inner.defval
		return nil
	} else if v.inner.optional {
		return nil
	}
	return &missingInputError{v.key, v.inner.envvar}
}

func (v *float32sValue) Set(val string) error {
	n, err := strconv.ParseFloat(val, 32)
	if err != nil {
		return fmt.Errorf("%s: expected a float32 but got %q", v.key, val)
	}
	*v.inner.target = append(*v.inner.target, float32(n))
	v.set = true
	return nil
}

func (v *float32sValue) String() string {
	if v.inner == nil {
		return ""
	} else if v.set {
		strs := make([]string, len(*v.inner.target))
		for i, f := range *v.inner.target {
			strs[i] = strconv.FormatFloat(float64(f), 'f', -1, 32)
		}
		return strings.Join(strs, ", ")
	} else if v.hasDefault() {
		strs := make([]string, len(*v.inner.defval))
		for i, f := range *v.inner.defval {
			strs[i] = strconv.FormatFloat(float64(f), 'f', -1, 32)
		}
		return strings.Join(strs, ", ")
	}
	return ""
}