forked from microsoft/vscode-editorconfig
-
Notifications
You must be signed in to change notification settings - Fork 117
/
InsertFinalNewline.ts
48 lines (39 loc) · 1.01 KB
/
InsertFinalNewline.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
import * as get from 'lodash.get';
import { KnownProps } from 'editorconfig';
import {
TextDocument,
Position,
TextEdit
} from 'vscode';
import PreSaveTransformation from './PreSaveTransformation';
export default class InsertFinalNewline extends PreSaveTransformation {
private lineEndings = {
CR: '\r',
CRLF: '\r\n',
LF: '\n'
};
transform(
editorconfigProperties: KnownProps,
doc: TextDocument
) {
const lineCount = doc.lineCount;
const lastLine = doc.lineAt(lineCount - 1);
if (shouldIgnoreSetting(editorconfigProperties.insert_final_newline)
|| lineCount === 0
|| lastLine.isEmptyOrWhitespace) {
return { edits: [] };
}
const position = new Position(
lastLine.lineNumber,
lastLine.text.length
);
const eol = get(editorconfigProperties, 'end_of_line', 'lf').toUpperCase();
return {
edits: [ TextEdit.insert(position, this.lineEndings[eol]) ],
message: `insertFinalNewline(${eol})`
};
function shouldIgnoreSetting(value) {
return !value || value === 'unset';
}
}
}