feat: theme file icons (#4)

.gitignore

@@ -0,0 +1,2 @@
+.luarocks/
+lua_modules/

.vscode/settings.json

@@ -0,0 +1,6 @@
+{
+  "deno.enable": true,
+  "[typescript]": {
+    "editor.defaultFormatter": "denoland.vscode-deno"
+  }
+}

README.md

@@ -37,9 +37,15 @@
 ## Usage
 
 1. Copy the theme file of your choice from `themes/` to your [Yazi configuration directory](https://yazi-rs.github.io/docs/configuration/overview) with the filename `theme.toml`.
-2. For Catppuccin-themed syntax highlighting in the preview pane: 
-	- Download the `.tmTheme` file of your choice from [catppuccin/bat](https://github.com/catppuccin/bat).
-	- Replace the path of `syntect_theme` (line 27) with the path of your downloaded `.tmTheme` file.
+2. For Catppuccin-themed syntax highlighting in the preview pane:
+   - Download the `.tmTheme` file of your choice from [catppuccin/bat](https://github.com/catppuccin/bat).
+   - Replace the path of `syntect_theme` (line 27) with the path of your downloaded `.tmTheme` file.
+
+## Contributing
+
+To contribute to this port you will need the following dependencies installed: [Whiskers](https://github.com/catppuccin/whiskers), [Deno](https://docs.deno.com/runtime/manual/getting_started/installation), [Lua](https://lua.org/start.html), [LuaRocks](https://luarocks.org/), and the [`dkjson` LuaRocks module](https://luarocks.org/modules/dhkolf/dkjson).
+
+Edit `yazi.tera` to make changes to the theme. Run `just build` to build the output themes (including the `-with-icons` variants) in `themes/`.
 
 ## 💝 Thanks to
 

deno.json

@@ -0,0 +1,9 @@
+{
+  "tasks": {
+    "icons": "deno run -A icons.ts"
+  },
+  "imports": {
+    "@catppuccin/palette": "https://esm.sh/@catppuccin/palette@1.2.0",
+    "ctpvert": "https://deno.land/x/ctpvert@v0.4.0/main.ts"
+  }
+}

icons.ts

@@ -0,0 +1,50 @@
+import { closest } from "ctpvert";
+import { type ColorName, flavorEntries, flavors } from "@catppuccin/palette";
+
+const { icons_by_filename, icons_by_file_extension } = JSON.parse(
+  Deno.args.join("")!,
+) as Record<
+  string,
+  Record<
+    string,
+    {
+      name: string;
+      icon: string;
+      cterm_color: string;
+      color: string;
+    }
+  >
+>;
+
+for (const [identifier] of flavorEntries) {
+  let output = `[icon]\nprepend_rules = [\n`;
+
+  for (
+    const [filename, { color, icon }] of Object.entries(icons_by_filename)
+      .sort(([a], [b]) => a < b ? -1 : a > b ? 1 : 0)
+  ) {
+    const match = closest(color);
+    output += `	{ name = "${filename}", text = "${icon}", fg = "${
+      flavors[identifier].colors[match[identifier].name as ColorName].hex
+    }" },\n`;
+  }
+
+  for (
+    const [ext, { color, icon }] of Object.entries(icons_by_file_extension)
+      .sort(([a], [b]) => a < b ? -1 : a > b ? 1 : 0)
+  ) {
+    const match = closest(color);
+    output += `	{ name = "*.${ext}", text = "${icon}", fg = "${
+      flavors[identifier].colors[match[identifier].name as ColorName].hex
+    }" },\n`;
+  }
+
+  output += "]\n";
+
+  const dist = `themes/${identifier}.toml`;
+  const theme = await Deno.readTextFile(dist);
+  await Deno.writeTextFile(
+    dist,
+    theme + "\n" + output,
+  );
+}

justfile

@@ -2,4 +2,12 @@ _default:
   @just --list
 
 build:
+  #!/usr/bin/env bash
   whiskers yazi.tera
+  # Fetch file associations, colors, icons.
+  data="$(curl https://raw.githubusercontent.com/nvim-tree/nvim-web-devicons/master/lua/nvim-web-devicons/icons-default.lua | sed 's/return {/local tbl = {/g')"
+  # Create a script that ends with the contents of it being printed as JSON.
+  script="$data
+  print(require('dkjson').encode(tbl, { indent = false }))"
+  # Run the Deno script to find the closest matching colors and write the files.
+  deno task icons $(echo "$script" | lua)