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
|
import { Diff as NodeGitDiff } from "nodegit";
import { Patch } from "./patch";
type PatchHeaderData = {
indexes: number[],
lengths: number[],
last: number | null
}
type DiffConstructorData = {
patch_buf: string,
patch_header_buf: string
}
export class Diff {
private _ng_diff: NodeGitDiff;
public raw_patches: string;
public patch_header_indexes: number[];
public patch_header_lengths: number[];
constructor(diff: NodeGitDiff, data: DiffConstructorData) {
this._ng_diff = diff;
this.raw_patches = data.patch_buf;
const raw_patches_arr = this.raw_patches.split("\n");
const patch_headers = data.patch_header_buf.split("\n");
const patch_header_data = patch_headers.reduce((result, line, index) => {
// The start of a patch header
if((/^diff --git/u).test(line)) {
result.indexes.push(raw_patches_arr.indexOf(line));
if(result.last !== null) {
result.lengths.push(patch_headers.slice(result.last, index).length);
}
result.last = index;
}
// Include the last patch header when the end is reached
if(index === patch_headers.length - 1 && result.last !== null) {
result.lengths.push(patch_headers.slice(result.last, index).length);
}
return result;
}, <PatchHeaderData>{ indexes: [], lengths: [], last: null });
this.patch_header_indexes = patch_header_data.indexes;
this.patch_header_lengths = patch_header_data.lengths;
}
async getPatches(): Promise<Patch[]> {
return (await this._ng_diff.patches()).map((patch, index) => new Patch(this, patch, index));
}
static async get(diff: NodeGitDiff): Promise<Diff> {
return new Diff(diff, {
patch_buf: String((await diff.toBuf(1))),
patch_header_buf: String((await diff.toBuf(2)))
});
}
}
|
