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import { BlobError, createError } from "./error";
import { Tree } from "./tree";
import { BlobTreeEntry } from "./tree_entry";
/**
* A representation of a blob
*/
export class Blob {
private _tree_entry: BlobTreeEntry;
public path;
/**
* @param entry - A tree entry that's a blob
*/
constructor(entry: BlobTreeEntry) {
this._tree_entry = entry;
this.path = entry.path;
}
/**
* Returns the blob's content
*/
public async content(): Promise<string> {
return (await this._tree_entry.ng_tree_entry.getBlob()).content().toString();
}
/**
* Returns a blob from a path in a tree
*
* @param tree - The tree to look in
* @param path - A path to a blob
* @returns An instance of a blob
*/
public static async fromPath(tree: Tree, path: string): Promise<Blob> {
const entry = await tree.find(path);
if(!(entry instanceof BlobTreeEntry)) {
throw(createError(BlobError, 500, "Not a blob"));
}
return new Blob(entry);
}
}
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