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import { Tree as NodeGitTree } from "nodegit";
import { Repository } from "./repository";
import { BaseTreeEntry, createTreeEntry, TreeEntry } from "./tree_entry";
import { createError, TreeError } from "./error";
/**
* A representation of a git tree
*/
export class Tree {
protected _owner: Repository;
protected _ng_tree: NodeGitTree;
public path: string;
/**
* @param owner The repository which the tree is in
* @param tree An instance of a Nodegit tree
*/
constructor(owner: Repository, tree: NodeGitTree) {
this._owner = owner;
this._ng_tree = tree;
this.path = tree.path();
}
/**
* The tree's entries
*
* @returns An array of tree entry instances
*/
public entries(): TreeEntry[] {
return this._ng_tree.entries().map(entry => new TreeEntry(this._owner, entry));
}
/**
* Returns the entry of a path
*
* @param path - The path of a blob or tree
* @returns An instance of an tree entry
*/
public async find(path: string): Promise<BaseTreeEntry> {
const entry = await this._ng_tree.getEntry(path).catch(err => {
if(err.errno === -3) {
throw(createError(TreeError, 404, "Path not found"));
}
throw(createError(TreeError, 500, "Failed to get tree path"));
});
return createTreeEntry(this._owner, entry);
}
/**
* Returns if a path exists or not
*
* @param path - The path to look for
* @returns Whether or not there exists an entry for the path
*/
public findExists(path: string): Promise<boolean> {
return this._ng_tree.getEntry(path)
.then(() => true)
.catch(() => false);
}
/**
* Returns the tree of a repository
*
* @remarks
*
* Assumes that you want to use the master branch.
* This will be fixed in the future.
*
* @param owner The repository which the tree is in
* @returns An instance of a tree
*/
public static async ofRepository(owner: Repository): Promise<Tree> {
const master_commit = await owner.masterCommit();
return master_commit.tree();
}
}
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