code-complexity/dist/src/lib/githistory/githistory.js

Measure the churn/complexity score. Higher values mean hotspots where refactorings should happen.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const micromatch = require("micromatch");
const node_child_process_1 = require("node:child_process");
const node_fs_1 = require("node:fs");
const node_path_1 = require("node:path");
class GitHistory {
    options;
    history;
    files;
    static build(options) {
        return new GitHistory(options);
    }
    constructor(options) {
        this.options = options;
        this.history = this.buildHistory();
        this.files = this.listFiles();
    }
    buildGitLogCommand() {
        const isWindows = process.platform === "win32";
        return [
            "git",
            `-C ${this.options.directory}`,
            `log`,
            `--follow`,
            // Windows CMD handle quotes differently than linux, this is why we should put empty string as said in:
            // https://github.com/git-for-windows/git/issues/3131
            `--format=${isWindows ? "" : "''"}`,
            `--name-only`,
            this.options.since ? `--since="${this.options.since}"` : "",
            this.options.until ? `--until="${this.options.until}"` : "",
            // Windows CMD handle quotes differently
            isWindows ? "*" : "'*'",
        ]
            .filter((s) => s.length > 0)
            .join(" ");
    }
    buildHistory() {
        const gitLogCommand = this.buildGitLogCommand();
        const stdout = this.executeGitLogCommand(gitLogCommand);
        return stdout
            .split("\n")
            .filter((line) => {
            if (line.trim().length === 0) {
                return false;
            }
            if (!this.pathStillExists(line)) {
                return false;
            }
            if (!this.filterMatches(line)) {
                return false;
            }
            return true;
        })
            .sort();
    }
    executeGitLogCommand(gitLogCommand) {
        return (0, node_child_process_1.execSync)(gitLogCommand, { encoding: "utf8", maxBuffer: 32000000 });
    }
    listFiles() {
        return [...new Set(this.history)];
    }
    pathStillExists(fileName) {
        return (0, node_fs_1.existsSync)((0, node_path_1.resolve)(this.options.directory, fileName));
    }
    filterMatches(file) {
        if (this.options.filter && this.options.filter.length) {
            return this.options.filter.every((f) => micromatch.isMatch(file, f));
        }
        return true;
    }
}
exports.default = GitHistory;