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import { Commit } from "./commit";
import { TreeEntry as NodeGitTreeEntry } from "nodegit";
import { Repository } from "./repository";
import { dirname } from "path";
import { findAsync } from "./misc";
import { Tree } from "./tree";
/**
* The core structure of a tree entry
*/
export abstract class BaseTreeEntry {
protected _ng_tree_entry: NodeGitTreeEntry;
protected _owner: Repository;
public path: string;
/**
* @param owner - The repository which the tree entry is in
* @param entry - An instance of a Nodegit tree entry
*/
constructor(owner: Repository, entry: NodeGitTreeEntry) {
this._ng_tree_entry = entry;
this._owner = owner;
this.path = entry.path();
}
/**
* Returns the tree entry's latest commit
*
* @returns An instance of a commit
*/
public async latestCommit(): Promise<Commit> {
const commits = await this._owner.commits();
return findAsync(commits, async commit => {
const diff = await commit.diff();
const patches = await diff.patches();
return Boolean(this instanceof TreeEntry
? patches.find(patch => patch.to === this.path)
: patches.find(patch => dirname(patch.to).startsWith(this.path)));
});
}
}
/**
* A representation of a tree entry that's a tree
*/
export class TreeEntry extends BaseTreeEntry {
/**
* Returns the tree of the tree entry
*
* @returns An instance of a tree
*/
public async tree(): Promise<Tree> {
return new Tree(this._owner, await this._ng_tree_entry.getTree());
}
}
/**
* A representation of a tree entry that's a blob
*/
export class BlobTreeEntry extends BaseTreeEntry {
/**
* Returns the blob's content
*/
public async content(): Promise<string> {
return (await this._ng_tree_entry.getBlob()).toString();
}
}
/**
* A factory which creates a tree entry
*
* @param owner - The repository that the tree entry is in
* @param entry - An instance of a Nodegit tree entry
* @returns An instance of a tree entry
*/
export function createTreeEntry(owner: Repository, entry: NodeGitTreeEntry): BaseTreeEntry {
return entry.isBlob()
? new BlobTreeEntry(owner, entry)
: new TreeEntry(owner, entry);
}
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