Blog: 2024-09-17

More editor ideas: either don't clear scrollback, or if you do clear scrollback, output the changes as a diff

$ edit ronin
diff --git a/ronin b/ronin
index 2805e3b..5cdfd6d 100755
--- a/ronin
+++ b/ronin
@@ -50,8 +50,8 @@ ronin_launch() {
     -hda "$RONIN_DISK" \
     -m 4096 \
     -nic hostfwd=tcp::2022-:22 \
-    -daemonize \

or

$ edit ronin
#!/bin/sh
# Create a virtual machine and log in

set -e

test ! -z "$RONIN_DEBUG" && set -x

RONIN_HOME="$HOME/.ronin"
RONIN_CACHE="$HOME/.cache/ronin"
RONIN_DISK="$RONIN_HOME/ronin-disk.qcow2"
<... etc>

---

Working on my editor, trying to pull up ipython, I got an error about my python profile. Ok so I removed my startup script and now ipython has a broken symlink. unsymlink failed silently: I forgot the ; before and:

is-symlink $file and rm $file

should have been

is-symlink $file; and rm $file

Turns out `move` had the same error. But even after fixing it, the original `mv` didn't do what it said in the readme:

Also warns you if you are trying to move a directory symlink which is ending in slash:

```
$ mkdir mydir
$ ln -s mydir mylink
$ mv mylink/ renamed
mv: cannot move 'mylink/' to 'renamed': Not a directory
```

`move` gives a more descriptive error:

```
$ move mylink/ renamed
move: `from` argument "mylink/" is a symlink with a trailing slash.
move: to rename a symlink, remove the trailing slash from the argument.
```

This arises because tab completion adds the slash. Completion for `move` could avoid the slash, but then again you might want to move a file within the symlinked directory.

In reality:

hack $ mkdir-cd fish-stuff3
fish-stuff3 $ mkdir mydir
fish-stuff3 $ ln -s mydir/ mylink
fish-stuff3 $ unsymlink ./mylink 
fish-stuff3 $ ln -s mydir mylink
fish-stuff3 $ command mv mylink/ renamed
fish-stuff3 $ 
fish-stuff3 $ # uhh no error

So I figured this might be a macos discrepancy (I'd call it an issue but it's not an issue, it works, which is unexpected, so it is an issue?)

ok so in order to get a vm on mac (cause ronin is broken anyways :( ) I saw this forum post: https://forums.macrumors.com/threads/is-there-something-like-windows-subsystem-for-linux-wsl-on-mac.2381667/

which led me to https://github.com/canonical/multipass

which is kinda like ronin but only for ubuntu? Anyways it works~

fish-stuff2 $ multipass shell
Launched: primary
Mounted '/Users/razzi' into 'primary:Home'
Welcome to Ubuntu 24.04.1 LTS (GNU/Linux 6.8.0-44-generic x86_64)
...

Turns out it is an ubuntu problem:

hack $ move renamed/ mylink
mv: cannot move 'renamed/' to 'mylink': Not a directory

but I'm going to keep my `move` argument checking to be safe across platforms. I guess on mac the behavior is to move the symlink target if you use the low-level `mv`, which is funky ...

fish-stuff4 $ ls
fish-stuff4 $ mkdir mydir
fish-stuff4 $ ln -s mydir mylink
fish-stuff4 $ move mylink/ renamed
move: `from` argument "mylink/" is a symlink with a trailing slash.
move: to rename a symlink, remove the trailing slash from the argument.
fish-stuff4 $ move mylink renamed
fish-stuff4 $ command mv renamed/ hi
fish-stuff4 $ ls
hi/      renamed@

---

Alright after much hackery I have something working

editor-stuff $ cat testit.py 
keystrokes = ['i', 'hello', '<esc>', ':wq', '<return>']

import os
import time
import subprocess

# subprocess.run('tmux')
p = subprocess.Popen(['tmux'])

print('tmux run')
# os.system('tmux')

time.sleep(1)

p.terminate()

print('all done')
# os.system('exit')

Which is taken from https://stackoverflow.com/questions/636561/how-can-i-run-an-external-command-asynchronously-from-python

basically

alright enough of this I'm going to bed.