initial

Makefile

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+INSTALL_DIR=/usr/local/bin
+
+install:
+	pip3 install -Ur requirements.txt
+	cp alacritty_config.py ${INSTALL_DIR}/alacritty-config
+	chmod u+x ${INSTALL_DIR}/alacritty-config
+
+uninstall:
+	rm ${INSTALL_DIR}/alacritty-config

README.md

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+# alacritty-config
+
+A simple Python script to simplify configuring my alacritty.
+
+## Installation
+
+You can install `alacritty-config` by cloning this repository and running  `make
+install`. By default, it will be installed in `/usr/local/bin`, but you can set a
+different `INSTALL_DIR` if you like.
+
+Uninstall it using `make uninstall`.
+
+## Usage
+
+`alacritty-config` has three different modes: show, add, and delete.
+
+Calling the program without any arguments will dump your entire config: you’re in show
+mode, but you haven’t selected anything. If you want to know the value of the `tabspaces`
+property, call `alacritty-config` with just that argument. If you want to know the action
+of your third key binding, call it with `key_bindings.2.action`—we’re 0-indexed.
+
+```
+$ alacritty-config
+<your entire config>
+
+$ alacritty-config tabspaces
+8 # or whatever you set it to
+
+$ alacritty-config key_bindings.2.action
+Paste # or whatever you set it to
+```
+
+If you want to delete a property, simply add `delete`.
+
+```
+$ alacritty-config tabspaces delete
+# Poof! It’s gone!
+```
+
+If you want to add or edit a property, simply add a different YAML-parseable property.
+If you want to set something to `delete`, simply quote it.
+
+```
+$ alacritty-config tabspaces 4
+# Set tabspaces to 4
+
+$ alacritty-config tabspaces '"delete"'
+# Set tabspaces to "delete", which won’t work
+```
+
+## TODO
+
+Oh, so much! Ideally, I’d like a GUI at least for all the colorful properties and for
+selecting fonts. For now the tool is simple and usable enough to be useful, but a simple
+GUI would definitely give this a better UX. Another time.
+
+<hr/>
+
+Have fun!

alacritty_config.py

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+#!/usr/bin/env python3
+import os
+import sys
+
+import yaml
+
+
+ALACRITTY_CONFIG = os.path.expanduser("~/.config/alacritty/alacritty.yml")
+
+
+class Action:
+    mutating = False
+    def __init__(self, path):
+        self.path = path
+
+    def traverse(self, yml):
+        for p in self.path:
+            yml = yml[p]
+        return yml
+
+
+class ShowAction(Action):
+    def act_on(self, yml):
+        yml = self.traverse(yml)
+        if type(yml) is dict:
+            print(yaml.dump(yml))
+        else:
+            print(yml)
+
+
+class EditAction(Action):
+    mutating = True
+    def __init__(self, path):
+        self.path = path[:-1]
+        self.prop = path[-1]
+
+
+class AddAction(EditAction):
+    def __init__(self, path, val):
+        super().__init__(path)
+        self.val = yaml.safe_load(val)
+
+    def act_on(self, yml):
+        yml = self.traverse(yml)
+        yml[self.prop] = self.val
+
+
+class DeleteAction(EditAction):
+    def act_on(self, yml):
+        yml = self.traverse(yml)
+        del yml[self.prop]
+
+
+def parse_path(p):
+    if p.isdigit():
+        return int(p)
+    return p
+
+
+def parse_action():
+    args = sys.argv
+
+    if len(args) == 1:
+        return ShowAction([])
+
+    path = [parse_path(a) for a in args[1].split('.')]
+    if len(args) == 2:
+        return ShowAction(path)
+
+    if len(args) == 3 and args[2] == 'delete':
+        return DeleteAction(path)
+
+    return AddAction(path, args[2])
+
+
+def main():
+    action = parse_action()
+
+    try:
+        with open(ALACRITTY_CONFIG) as f:
+            y = yaml.safe_load(f.read())
+            action.act_on(y)
+        if action.mutating:
+            with open(ALACRITTY_CONFIG, "w+") as f:
+                f.write(yaml.dump(y))
+    except KeyError as e:
+        print('Key "{}" was not found in alacritty config!'.format(e))
+
+
+if __name__ == '__main__':
+    main()

requirements.txt

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+pyyaml