aboutsummaryrefslogtreecommitdiff
path: root/config/config.go
blob: 88986e39ed773ab926ae6ab179110a21323e63c1 (plain)
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
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
package config

import (
	"errors"
	"fmt"
	"path"
	"regexp"
	"strings"
	"unicode"

	"github.com/go-ini/ini"
	"github.com/kyoh86/xdg"
)

type UIConfig struct {
	IndexFormat       string   `ini:"index-format"`
	TimestampFormat   string   `ini:"timestamp-format"`
	ShowHeaders       []string `delim:","`
	LoadingFrames     []string `delim:","`
	RenderAccountTabs string   `ini:"render-account-tabs"`
	SidebarWidth      int      `ini:"sidebar-width"`
	PreviewHeight     int      `ini:"preview-height"`
	EmptyMessage      string   `ini:"empty-message"`
}

const (
	FILTER_MIMETYPE = iota
	FILTER_HEADER
)

type AccountConfig struct {
	Default  string
	Name     string
	Source   string
	Folders  []string
	Params   map[string]string
	Outgoing string
}

type BindingConfig struct {
	Global      *KeyBindings
	Compose     *KeyBindings
	MessageList *KeyBindings
	MessageView *KeyBindings
	Terminal    *KeyBindings
}

type FilterConfig struct {
	FilterType int
	Filter     string
	Command    string
	Header     string
	Regex      *regexp.Regexp
}

type ViewerConfig struct {
	Pager        string
	Alternatives []string
}

type AercConfig struct {
	Bindings BindingConfig
	Ini      *ini.File       `ini:"-"`
	Accounts []AccountConfig `ini:"-"`
	Filters  []FilterConfig  `ini:"-"`
	Viewer   ViewerConfig    `ini:"-"`
	Ui       UIConfig
}

// Input: TimestampFormat
// Output: timestamp-format
func mapName(raw string) string {
	newstr := make([]rune, 0, len(raw))
	for i, chr := range raw {
		if isUpper := 'A' <= chr && chr <= 'Z'; isUpper {
			if i > 0 {
				newstr = append(newstr, '-')
			}
		}
		newstr = append(newstr, unicode.ToLower(chr))
	}
	return string(newstr)
}

func loadAccountConfig(path string) ([]AccountConfig, error) {
	file, err := ini.Load(path)
	if err != nil {
		return nil, err
	}
	file.NameMapper = mapName

	var accounts []AccountConfig
	for _, _sec := range file.SectionStrings() {
		if _sec == "DEFAULT" {
			continue
		}
		sec := file.Section(_sec)
		account := AccountConfig{
			Default: "INBOX",
			Name:    _sec,
			Params:  make(map[string]string),
		}
		if err = sec.MapTo(&account); err != nil {
			return nil, err
		}
		for key, val := range sec.KeysHash() {
			if key == "folders" {
				account.Folders = strings.Split(val, ",")
			} else if key == "outgoing" {
				account.Outgoing = val
			} else if key != "name" {
				account.Params[key] = val
			}
		}
		if account.Source == "" {
			return nil, fmt.Errorf("Expected source for account %s", _sec)
		}
		accounts = append(accounts, account)
	}
	if len(accounts) == 0 {
		err = errors.New("No accounts configured in accounts.conf")
		return nil, err
	}
	return accounts, nil
}

func LoadConfig(root *string) (*AercConfig, error) {
	if root == nil {
		_root := path.Join(xdg.ConfigHome(), "aerc")
		root = &_root
	}
	file, err := ini.Load(path.Join(*root, "aerc.conf"))
	if err != nil {
		return nil, err
	}
	file.NameMapper = mapName
	config := &AercConfig{
		Bindings: BindingConfig{
			Global:      NewKeyBindings(),
			Compose:     NewKeyBindings(),
			MessageList: NewKeyBindings(),
			MessageView: NewKeyBindings(),
			Terminal:    NewKeyBindings(),
		},
		Ini: file,

		Ui: UIConfig{
			IndexFormat:     "%4C %Z %D %-17.17n %s",
			TimestampFormat: "%F %l:%M %p",
			ShowHeaders: []string{
				"From", "To", "Cc", "Bcc", "Subject", "Date",
			},
			LoadingFrames: []string{
				"[..]  ", " [..] ", "  [..]", " [..] ",
			},
			RenderAccountTabs: "auto",
			SidebarWidth:      20,
			PreviewHeight:     12,
			EmptyMessage:      "(no messages)",
		},
	}
	if filters, err := file.GetSection("filters"); err == nil {
		// TODO: Parse the filter more finely, e.g. parse the regex
		for _, match := range filters.KeyStrings() {
			cmd := filters.KeysHash()[match]
			filter := FilterConfig{
				Command: cmd,
				Filter:  match,
			}
			if strings.Contains(match, ",~") {
				filter.FilterType = FILTER_HEADER
				header := filter.Filter[:strings.Index(filter.Filter, ",")]
				regex := filter.Filter[strings.Index(filter.Filter, "~")+1:]
				filter.Header = strings.ToLower(header)
				filter.Regex, err = regexp.Compile(regex)
				if err != nil {
					panic(err)
				}
			} else if strings.ContainsRune(match, ',') {
				filter.FilterType = FILTER_HEADER
				header := filter.Filter[:strings.Index(filter.Filter, ",")]
				value := filter.Filter[strings.Index(filter.Filter, ",")+1:]
				filter.Header = strings.ToLower(header)
				filter.Regex, err = regexp.Compile(regexp.QuoteMeta(value))
			} else {
				filter.FilterType = FILTER_MIMETYPE
			}
			config.Filters = append(config.Filters, filter)
		}
	}
	if viewer, err := file.GetSection("viewer"); err == nil {
		if err := viewer.MapTo(&config.Viewer); err != nil {
			return nil, err
		}
		for key, val := range viewer.KeysHash() {
			switch key {
			case "alternatives":
				config.Viewer.Alternatives = strings.Split(val, ",")
			}
		}
	}
	if ui, err := file.GetSection("ui"); err == nil {
		if err := ui.MapTo(&config.Ui); err != nil {
			return nil, err
		}
	}
	accountsPath := path.Join(*root, "accounts.conf")
	if accounts, err := loadAccountConfig(accountsPath); err != nil {
		return nil, err
	} else {
		config.Accounts = accounts
	}
	binds, err := ini.Load(path.Join(*root, "binds.conf"))
	if err != nil {
		return nil, err
	}
	groups := map[string]**KeyBindings{
		"default":  &config.Bindings.Global,
		"compose":  &config.Bindings.Compose,
		"messages": &config.Bindings.MessageList,
		"terminal": &config.Bindings.Terminal,
		"view":     &config.Bindings.MessageView,
	}
	for _, name := range binds.SectionStrings() {
		sec, err := binds.GetSection(name)
		if err != nil {
			return nil, err
		}
		group, ok := groups[strings.ToLower(name)]
		if !ok {
			return nil, errors.New("Unknown keybinding group " + name)
		}
		bindings := NewKeyBindings()
		for key, value := range sec.KeysHash() {
			if key == "$ex" {
				strokes, err := ParseKeyStrokes(value)
				if err != nil {
					return nil, err
				}
				if len(strokes) != 1 {
					return nil, errors.New(
						"Error: only one keystroke supported for $ex")
				}
				bindings.ExKey = strokes[0]
				continue
			}
			if key == "$noinherit" {
				if value == "false" {
					continue
				}
				if value != "true" {
					return nil, errors.New(
						"Error: expected 'true' or 'false' for $noinherit")
				}
				bindings.Globals = false
			}
			binding, err := ParseBinding(key, value)
			if err != nil {
				return nil, err
			}
			bindings.Add(binding)
		}
		*group = MergeBindings(bindings, *group)
	}
	// Globals can't inherit from themselves
	config.Bindings.Global.Globals = false
	return config, nil
}