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feat(patch): add bindings and api

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This commit is contained in:
Aleksey Kulikov 2021-09-16 16:35:37 +03:00
parent f7f4a395c0
commit 344dba60e9
11 changed files with 1087 additions and 47 deletions
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61
lib/src/blob.dart
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@ -1,6 +1,9 @@
import 'dart:ffi';
import 'bindings/libgit2_bindings.dart';
import 'bindings/blob.dart' as bindings;
import 'bindings/patch.dart' as patch_bindings;
import 'git_types.dart';
import 'patch.dart';
import 'oid.dart';
import 'repository.dart';
import 'util.dart';
@ -66,6 +69,64 @@ class Blob {
/// Returns the size in bytes of the contents of a blob.
int get size => bindings.size(_blobPointer);
/// Directly generate a [Patch] from the difference between two blobs.
///
/// Should be freed with `free()` to release allocated memory.
///
/// Throws a [LibGit2Error] if error occured.
Patch diff({
required Blob? newBlob,
String? oldAsPath,
String? newAsPath,
Set<GitDiff> flags = const {GitDiff.normal},
int contextLines = 3,
int interhunkLines = 0,
}) {
final int flagsInt =
flags.fold(0, (previousValue, e) => previousValue | e.value);
final result = patch_bindings.fromBlobs(
_blobPointer,
oldAsPath,
newBlob?.pointer,
newAsPath,
flagsInt,
contextLines,
interhunkLines,
);
return Patch(result['patch'], result['a'], result['b']);
}
/// Directly generate a [Patch] from the difference between the blob and a buffer.
///
/// Should be freed with `free()` to release allocated memory.
///
/// Throws a [LibGit2Error] if error occured.
Patch diffToBuffer({
required String? buffer,
String? oldAsPath,
String? bufferAsPath,
Set<GitDiff> flags = const {GitDiff.normal},
int contextLines = 3,
int interhunkLines = 0,
}) {
final int flagsInt =
flags.fold(0, (previousValue, e) => previousValue | e.value);
final result = patch_bindings.fromBlobAndBuffer(
_blobPointer,
oldAsPath,
buffer,
bufferAsPath,
flagsInt,
contextLines,
interhunkLines,
);
return Patch(result['patch'], result['a'], result['b']);
}
/// Releases memory allocated for blob object.
void free() => bindings.free(_blobPointer);
}