Move HTML cheatsheet to home directory (#884)

* Make local HTML cheatsheet more robust

* Add a comment

* Narrow scope of PR

Co-authored-by: Andreas Arvidsson <andreas.arvidsson87@gmail.com>

Author: pokey

src/cheatsheet_html/cheat_sheet.py

@@ -1,4 +1,3 @@
-import tempfile
 import webbrowser
 from pathlib import Path
 
@@ -18,7 +17,6 @@
 tag: user.cursorless
 """
 
-cheatsheet_out_dir = Path(tempfile.mkdtemp())
 instructions_url = "https://www.cursorless.org/docs/"
 
 
@@ -44,8 +42,12 @@ def cursorless_open_instructions():
 @ctx.action_class("user")
 class Actions:
     def cursorless_cheat_sheet_show_html():
-        """Show new cursorless html cheat sheet"""
-        cheatsheet_out_path = cheatsheet_out_dir / "cheatsheet.html"
+        """Show cursorless html cheat sheet"""
+        # NB: We use the user's home directory instead of temp to make sure that
+        # Linux snaps work
+        cheatsheet_out_dir = Path.home() / ".cursorless" / "cheatsheet"
+        cheatsheet_out_dir.mkdir(parents=True, exist_ok=True)
+        cheatsheet_out_path = cheatsheet_out_dir / "index.html"
         run_rpc_command_and_wait(
             "cursorless.showCheatsheet",
             {