introducing instructions for using git

instructions_git.md

@@ -0,0 +1,60 @@
+# How to setup git to collaborate on the cloudflare-tor project with SSH over Tor
+
+This procedure will give you a cloudflare-tor fork with a
+privacy-respecting configuration to do pushes with SSH over Tor using
+the onion host for notabug.org ("NAB").  This procedure is designed
+for ***linux***.  The first step covers Windows too, but these
+instructions probably need more adaptations for Windows and other
+platforms.
+
+1. install git, ssh, and tor (if you haven't already)
+| Debian | Windows |
+|--|--|
+| `aptitude install git tor ssh` | (git only) download and extract `https://github.com/git-for-windows/git/releases/PortableGit-2.21.0-64-bit.7z`; run `git-bash.exe` |
+1. create a `notabug.org` account (username "snowden" will be used for this example)
+1. create an SSH key pair ```
+  $ ssh-keygen -t rsa -N '' -C 'snowden at notabug' -f "$HOME"/.ssh/id_rsa_nab-snowden```
+1. edit `$HOME/.ssh/config`:
+```
+    host notabug-*
+         hostname     qs3zumwfci4tntnd.onion
+         ForwardX11   no
+         ProxyCommand connect -4 -S 127.0.01:9050 %h %p
+    host notabug-snowden
+         IdentityFile /home/user/.ssh/id_rsa_nab-snowden
+```
+1. copy `"$HOME"/.ssh/id_rsa_nab-snowden.pub` to clipboard
+1. notabug.org > settings > SSH Keys > add key (paste from clipboard)
+1. $ `firefox https://notabug.org/themusicgod1/cloudflare-tor`
+1. fork it (top right corner)
+1. go to the directory you want the project to be rooted in (hereafter we'll call it `$project_root`).
+1. anonymously download your fork: $ `torsocks git clone https://notabug.org/snowden/cloudflare-tor`
+1. edit `$project_root/cloudflare-tor/.git/config` to include the
+   account name and email address that will be on every commit, as
+   well as the URL:
+```
+[user]
+        email = BM-yadayadayada6fgnLfybVnCcWf25AGZcgg@bitmessage.ch
+        name = snowden
+[remote "origin"]
+        url = git@notabug-snowden:snowden/cloudflare-tor.git
+     	fetch = +refs/heads/*:refs/remotes/origin/*
+[branch "master"]
+	remote = origin
+	merge = refs/heads/master
+```
+1. make your first change
+1. (from `$project_root`) $ `git add . -u -n`
+1. check that the files listed are what you changed and intend to push upstream
+1. if yes: `$ git add . -u`
+1. $ `git commit -m 'description of first change'`
+1. $ `git push origin master`
+1. $ `firefox https://notabug.org/themusicgod1/cloudflare-tor`
+1. make a new pull request
+
+Notice that only the `git clone` command has a `torsocks` prefix and
+all git commands thereafter do not.  Whenever git operates on the
+cloudflare-tor project, all connections to NAB are automatically over
+Tor with this configuration (because the `url` in `.git/config`
+references the virtual host `notabug-snowden` in `~/.ssh/config` which
+uses the onion address).