kiprasmel

Debugging Git

Some tips about debugging Git with GDB and LLDB.

Compiling Git for debugging

By default, Git's Makefile compiles Git with debug symbols (-g), but with optimization level -O2, which can lead to some variable being optimized out and thus making the executable harder to debug.

To compile with -O0, you can tweak CFLAGS using config.mak:

$ cat config.mak

kiprasmel

#!/usr/bin/env bash

fn() {
	base="$1"
	shift
	printf "$base with \$*\n"
	for i in  $* ; do printf "  $i\n"; done;
	printf "$base with \$@\n"
	for i in  $@ ; do printf "  $i\n"; done;
	printf "$base with \"\$*\"\n"

kiprasmel

/**
 * https://gist.github.com/kiprasmel/3fb1578e1f428dd1dd8e88683ca8c400
 *
 * put in a javascript code block under a block containing {{[[roam/js]]}} text, like so:
 * - {{[[roam/js]]}}
 *   - this code
*/

// https://roamresearch.com/#/app/developer-documentation/page/JTLUegLiI
window.roamAlphaAPI.ui

kiprasmel

#!/bin/sh

for p in *projects/; do
	printf "\n$p\n\n"
	for dir in $(find "./$p" -type d -maxdepth 1); do
		gitdir="$dir/.git"
		test -d "$gitdir" && {
			printf "$dir\n"
			git --work-tree="$dir" --git-dir="$gitdir" status -s
		}

kiprasmel

// import fs from "fs";
import { Server } from "http";

import express from "express";
import cors from "cors";

const app = express();

app.use(cors());
app.use(express.json());

kiprasmel

<!-- 
  - https://preactjs.com/guide/v10/getting-started#no-build-tools-route
    - https://preactjs.com/guide/v10/getting-started#alternatives-to-jsx
 -->
<script type="module">
  import * as preact from 'https://unpkg.com/preact?module';
  import htm from 'https://unpkg.com/htm?module';

  const h = htm.bind(preact.h);

kiprasmel

/**
 * https://gist.github.com/kiprasmel/75de24e48c8c442e55d4771768d7ba49
 */

export type Cb = () => void;

export class EventEmitter<Event extends string> {
	listeners: Map<Event, Cb[]> = new Map();

	/**

kiprasmel

/* 
.mtk3, .mtk6 {
  color: #61e2ff;
  text-shadow: 0 0 2px #001716, 0 0 5px #03edf933, 0 0 10px #ffff6633;
}

.mtk3.mtki {
  font-style: italic;
  color: #9963ff99;
}

kiprasmel

#!/usr/bin/env node

const fs = require("fs");
const { spawn, exec } = require("child_process");
const path = require("path");
const { snakeCase, pascalCase } = require("/Users/kiprasmelnikovas/.local/share/yarn/global/node_modules/change-case");
// const {pipe} =require( "/Users/kiprasmelnikovas/.local/share/yarn/global/node_modules/fp-ts")

// // git status --short | grep '^[RAD]' > status

kiprasmel

const doFoo = ({ a = 10, b, c } = {}) => {
	console.log(a, b, c);
};

doFoo();          // a 10 b undefined c undefined
doFoo({ b: 20 }); // a 10 b 20        c undefined
                  //  /\ a still with default value!