-
Notifications
You must be signed in to change notification settings - Fork 68
/
parser.ts
204 lines (172 loc) · 5.15 KB
/
parser.ts
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
import {AlphabetLowercase, AlphabetUppercase} from './alphabet'
import {Config} from './config'
export type ParseFn<T> = (input: string) => Promise<T>
export interface Arg<T = string> {
name: string;
description?: string;
required?: boolean;
hidden?: boolean;
parse?: ParseFn<T>;
default?: T | (() => T);
options?: string[];
ignoreStdin?: boolean;
}
export interface ArgBase<T> {
name?: string;
description?: string;
hidden?: boolean;
parse: ParseFn<T>;
default?: T | (() => Promise<T>);
input?: string;
options?: string[];
ignoreStdin?: boolean;
}
export type RequiredArg<T> = ArgBase<T> & {
required: true;
value: T;
}
export type OptionalArg<T> = ArgBase<T> & {
required: false;
value?: T;
}
export type ParserArg<T> = RequiredArg<T> | OptionalArg<T>
export interface FlagOutput { [name: string]: any }
export type ArgInput = Arg<any>[]
export interface CLIParseErrorOptions {
parse: {
input?: ParserInput;
output?: ParserOutput;
};
}
export type OutputArgs = { [name: string]: any }
export type OutputFlags<T extends ParserInput['flags']> = { [P in keyof T]: any }
export type ParserOutput<TFlags extends OutputFlags<any> = any, GFlags extends OutputFlags<any> = any, TArgs extends OutputArgs = any> = {
// Add in global flags so that they show up in the types
// This is necessary because there's no easy way to optionally return
// the individual flags based on wether they're enabled or not
flags: TFlags & GFlags & { json: boolean | undefined };
args: TArgs;
argv: string[];
raw: ParsingToken[];
metadata: Metadata;
}
export type ArgToken = { type: 'arg'; input: string }
export type FlagToken = { type: 'flag'; flag: string; input: string }
export type ParsingToken = ArgToken | FlagToken
export interface FlagUsageOptions { displayRequired?: boolean }
export type Metadata = {
flags: { [key: string]: MetadataFlag };
}
type MetadataFlag = {
setFromDefault?: boolean;
}
export type ListItem = [string, string | undefined]
export type List = ListItem[]
export type DefaultContext<T> = {
options: OptionFlag<T>;
flags: { [k: string]: string };
}
export type Default<T> = T | ((context: DefaultContext<T>) => Promise<T>)
export type DefaultHelp<T> = T | ((context: DefaultContext<T>) => Promise<string | undefined>)
export type FlagProps = {
name: string;
char?: AlphabetLowercase | AlphabetUppercase;
/**
* A short summary of flag usage to show in the flag list.
* If not provided, description will be used.
*/
summary?: string;
/**
* A description of flag usage. If summary is provided, the description
* is assumed to be a longer description and will be shown in a separate
* section within help.
*/
description?: string;
/**
* The flag label to show in help. Defaults to "[-<char>] --<name>" where -<char> is
* only displayed if the char is defined.
*/
helpLabel?: string;
/**
* Shows this flag in a separate list in the help.
*/
helpGroup?: string;
hidden?: boolean;
required?: boolean;
dependsOn?: string[];
exclusive?: string[];
}
export type BooleanFlagProps = FlagProps & {
type: 'boolean';
allowNo: boolean;
}
export type OptionFlagProps = FlagProps & {
type: 'option';
helpValue?: string;
options?: string[];
multiple: boolean;
}
export type FlagBase<T, I> = FlagProps & {
exactlyOne?: string[];
/**
* also accept an environment variable as input
*/
env?: string;
parse(input: I, context: any): Promise<T>;
}
export type BooleanFlag<T> = FlagBase<T, boolean> & BooleanFlagProps & {
/**
* specifying a default of false is the same not specifying a default
*/
default?: Default<boolean>;
}
export type OptionFlag<T> = FlagBase<T, string> & OptionFlagProps & {
default?: Default<T | undefined>;
defaultHelp?: DefaultHelp<T>;
input: string[];
}
export type Definition<T> = {
(options: { multiple: true } & Partial<OptionFlag<T[]>>): OptionFlag<T[]>;
(
options: ({ required: true } | { default: Default<T> }) &
Partial<OptionFlag<T>>,
): OptionFlag<T>;
(options?: Partial<OptionFlag<T>>): OptionFlag<T | undefined>;
}
export type EnumFlagOptions<T> = Partial<OptionFlag<T>> & {
options: T[];
}
export type Flag<T> = BooleanFlag<T> | OptionFlag<T>
export type Input<TFlags extends FlagOutput, GFlags extends FlagOutput> = {
flags?: FlagInput<TFlags>;
globalFlags?: FlagInput<GFlags>;
args?: ArgInput;
strict?: boolean;
context?: any;
'--'?: boolean;
}
export interface ParserInput {
argv: string[];
flags: FlagInput<any>;
args: ParserArg<any>[];
strict: boolean;
context: any;
'--'?: boolean;
}
export type CompletionContext = {
args?: { [name: string]: string };
flags?: { [name: string]: string };
argv?: string[];
config: Config;
}
export type Completion = {
skipCache?: boolean;
cacheDuration?: number;
cacheKey?(ctx: CompletionContext): Promise<string>;
options(ctx: CompletionContext): Promise<string[]>;
}
export type CompletableOptionFlag<T> = OptionFlag<T> & {
completion?: Completion;
}
export type CompletableFlag<T> = BooleanFlag<T> | CompletableOptionFlag<T>
export type FlagInput<T extends FlagOutput = {[flag: string]: unknown}> = { [P in keyof T]: CompletableFlag<T[P]> }