libs/commands/diff/src/index.ts - main - githubmirror/lerna

libs/commands/diff/src/index.ts

64 строки2 KB

amorscher

chore(child-process): convert to typescript (#3908)

29 ноя 2023, 00:18

29 ноя 2023, 00:18a8cf247

import { Arguments, Command, CommandConfigOptions, getPackage, ValidationError } from "@lerna/core";
import execa from "execa";
import { getLastCommit } from "./lib/get-last-commit";
import { hasCommit } from "./lib/has-commit";
import { spawn } from "@lerna/child-process";

export function factory(argv: Arguments<DiffCommandOptions>) {
  return new DiffCommand(argv);
}

interface DiffCommandOptions extends CommandConfigOptions {
  pkgName?: string;
  ignoreChanges?: string[];
}

export class DiffCommand extends Command<DiffCommandOptions> {
  private args: string[] = [];

  override initialize() {
    const packageName = this.options.pkgName;
    let targetPackage;

    if (packageName) {
      const project = Object.values(this.projectGraph.nodes).find(
        (p) => p.package && getPackage(p).name === packageName
      );
      targetPackage = project && getPackage(project);

      if (!targetPackage) {
        throw new ValidationError("ENOPKG", `Cannot diff, the package '${packageName}' does not exist.`);
      }
    }

    if (!hasCommit(this.execOpts)) {
      throw new ValidationError("ENOCOMMITS", "Cannot diff, there are no commits in this repository yet.");
    }

    const args = ["diff", getLastCommit(this.execOpts), "--color=auto"];

    if (targetPackage) {
      args.push("--", targetPackage.location);
    } else {
      args.push("--", ...this.project.packageParentDirs);
    }

    if (this.options.ignoreChanges) {
      this.options.ignoreChanges.forEach((ignorePattern) => {
        // https://stackoverflow.com/a/21079437
        args.push(`:(exclude,glob)${ignorePattern}`);
      });
    }

    this.args = args;
  }

  override execute() {
    return spawn("git", this.args, this.execOpts).catch((err: execa.ExecaError) => {
      if (err.exitCode) {
        // quitting the diff viewer is not an error
        throw err;
      }
    });
  }
}