git-prompt, flake8, pass-git-helper, gpg trust model, SSH control master, python indent

1. Before we had no real inclusion of git-prompt in this repo. Now, we have
   included git's own git-prompt. Alternatives were tested and failed to
   meet KISS, YAGNI, or one-task-one-solution principles.
2. Include $HOME/go/bin in PATH
3. Set flake8's max-cognitive-complexity to 16
4. Set up pass-git-helper as git's credential helper, set pack.windowMemory to 1024m
5. Set trust-model of GPG to tofu+gpg
6. Do not use tabs in python anymore, bow to global byte-consuming standard
7. Do not use SSH ControlMaster as default anymore

---

Squashed commit of the following:

commit 035b47b860b96a3c4bf24ed53f9753f6dac77097
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sun Jul 14 13:13:10 2024 +0200

    easygit, lul.

commit 429003c91aadba10e2447fab2a536d21cb1a334c
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sun Jul 14 13:10:23 2024 +0200

    solution in readme

commit 3d3d8bf1736400f064dc25213bc38ea1f902ed25
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sun Jul 14 13:06:12 2024 +0200

    final hook

commit 784cca88b3ccfaf2e3ddc6d39b6b62da3e636b31
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sun Jul 14 12:58:16 2024 +0200

    accident

commit c93a9ef0252f7285f5bd8c0e5a60cde17c3ab1bd
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sun Jul 14 12:57:36 2024 +0200

    preparation for submodule-less checkout

commit 0854d735ac6f596205df2484c9c5793cdf259e73
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sun Jul 14 12:18:40 2024 +0200

    +pre-commit

commit 00f87081a3ba50b48dc3cebfaa3c804e805120b0
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sun Jul 14 12:15:04 2024 +0200

    add git-prompt to ignore list

commit 574bbc70cc4282baee11a0548f0bb3d9510ddee9
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sun Jul 14 12:13:14 2024 +0200

    remove from cache

commit e60e29cb6c941223768634413e7ffa13cc5b0b19
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sun Jul 14 12:12:21 2024 +0200

    move submodule git-prompt to post-checkout

commit 738ecb82e946043914fc822d8fb877a655e5ad4f
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sun Jul 14 11:57:52 2024 +0200

    ...

commit 672c91bc95a167269fb7ddfa2c84e4f7da2bdad2
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sun Jul 14 11:32:25 2024 +0200

    here goes another attempt

commit cbc3482c5d475eff579902004f81cefd38cfcb98
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sun Jul 14 10:53:38 2024 +0200

    specify branch of submodule

commit 95a8483b04efddab37aa92d52134a823ecc1920f
Merge: 5155ed2 ce9a713
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sun Jul 14 10:52:21 2024 +0200

    Merge between two machines (again)

commit 5155ed2eefa29fc2d660823f8609e0c7dcc85113
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sun Jul 14 10:52:12 2024 +0200

    reintroducing main submodule shllow/sparse config

commit ce9a713662fdb8cc30eed9bdfb3a9fc9ab217afc
Merge: b2b8209 717e60b
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sun Jul 14 10:38:11 2024 +0200

    Merge between two pulls and machines

commit b2b82097d4e167b285abac53d0e6a291a4f798a7
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sun Jul 14 10:38:03 2024 +0200

    +weird sha1collisiondetection submodule in README

commit 717e60be83f2cf22808bc75ba37459e888a39513
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sun Jul 14 10:29:35 2024 +0200

    working commit for submodule

commit 11376154555ea0a325742d0d81dc282642837940
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sun Jul 14 10:18:41 2024 +0200

    revamp

commit aaf11ee32d35a194eb58387f4742cf00acadbbf2
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sun Jul 14 10:08:07 2024 +0200

    fix: submodule info of git-prompt was garbage

commit 8faef2071a0dd0358714b082738dbc253378214a
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sun Jul 14 09:59:33 2024 +0200

    inclusion of git prompt

commit 9b850221308f64fe6e641555fcbd24ddf5a7ff7b
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sun Jul 14 09:00:08 2024 +0200

    integrate go binaries in $HOME into PATH

commit 71b39d46de0bfe14b44f4241c8b8af01d3fb6b27
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sun May 26 10:52:50 2024 +0200

    Updated submodules

commit 37fdb2a700e47cc84f0dd3b004b33c41b1eb4abe
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sun May 26 10:48:44 2024 +0200

    + flake8's cognitive complexity

commit 6922aa0ab8cfbdc83fc2a38fe486c9a390807c99
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sat May 25 13:27:52 2024 +0200

    include tofu in gpg trust model

commit e5abe8e6672cff7852c48f1db57176d9b03538f9
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sat May 25 13:27:15 2024 +0200

    fwiw, return to whitespaces. more bytes, but more interoperability.

commit d9b65ed059e81cca89bcec21545aa8816198537d
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sat May 25 13:25:35 2024 +0200

    only use the control master if desired. causes more fuss than solutions on daily use.

commit badff375848d9af77e9761619f374278da862dac
Author: Harald Pfeiffer <coding@lirion.de>
Date:   Sat May 25 13:24:03 2024 +0200

    + credential helper, + memory window

1 files changed, 26 insertions, 6 deletions

diff --git a/README.md b/README.md
index 6728444..e660979 100644
--- a/README.md
+++ b/README.md
@@ -4,10 +4,30 @@ Yet another (!) approach at building up a centralized configuration.
 
 Parts are old, parts are not done yet, we're getting there.
 
-## To-Dos
+# Information for cloning
 
-* i3 config / sway config
-* gpg config
-* game launching stuff
-* parallel-ssh and ansible
-* ...
+## only clone git-prompt.sh
+
+This repository does not include a git-prompt.sh source. This is due to the file residing inside
+the whole git repository. Submoduling cannot just include one file, so if you need this file here,
+the checkout is... up to you, kind of.
+
+Since I am maintaining this repo for ease of distribution for myself as well, here's the solution:
+
+Trigger `/.githooks/post-checkout` inside this repo. Either do this on any checkout, or set your git
+post-checkout trigger for this file to automatically take over.
+
+## sha1collisiondetection
+
+For git-prompt, its submodule sha1collisiondetection may be "broken" (i.e. it cannot be pulled), here's a fix:
+
+`git -c submodule.sha1collisiondetection.update=none COMMAND`
+
+...whereas `COMMAND` is one of the usual actions such as
+
+```
+clone --recurse-submodules
+submodule update --init --recursive
+```
+
+This only applies if you do not use `/.githooks/post-checkout` inside this repository.