✨ feat(save-session): implement session saving function

Allows saving the current session with a keypress

The session can then be restored via a right-click option in the kitty application

save_session/kitty-convert-dump.py

@@ -0,0 +1,73 @@
+#!/usr/bin/env python3
+"""
+this tool is used to convert Kitty session dump to Kitty session file which can be loaded by Kitty
+"""
+
+import json
+import os
+import sys
+
+
+def env_to_str(env):
+    """Convert an env list to a series of '--env key=value' parameters and return as a string."""
+    s = ""
+    for key in env:
+        s += f"--env {key}={env[key]} "
+
+    return s.strip()
+
+
+def cmdline_to_str(cmdline):
+    """Convert a cmdline list to a space separated string."""
+    s = ""
+    for e in cmdline:
+        s += f"{e} "
+
+    return s.strip()
+
+
+def fg_proc_to_str(fg):
+    """Convert a foreground_processes list to a space separated string."""
+    s = ""
+    fg = fg[0]
+
+    # s += f"--cwd {fg['cwd']} {cmdline_to_str(fg['cmdline'])}"
+    s += f"{cmdline_to_str(fg['cmdline'])}"
+
+    if s == "kitty @ ls":
+        return os.getenv("SHELL")
+    return s
+
+
+def convert(session):
+    """Convert a kitty session dict, into a kitty session file and output it."""
+    first = True
+    for os_window in session:
+        if first:
+            first = False
+        else:
+            print("\nnew_os_window\n")
+
+        for tab in os_window["tabs"]:
+            print("\n")
+            print(f"new_tab {tab['title']}")
+            # print('enabled_layouts *)
+            print(f"layout {tab['layout']}")
+            # This is a bit of a kludge to set cwd for the tab, as
+            # setting it in the launch command didn't work, for some reason?
+            if tab["windows"]:
+                print(f"cd {tab['windows'][0]['cwd']}")
+
+            for w in tab["windows"]:
+                print(f"title {w['title']}")
+                print(
+                    f"launch {env_to_str(w['env'])} {fg_proc_to_str(w['foreground_processes'])}"
+                )
+                if w["is_focused"]:
+                    print("focus")
+
+
+if __name__ == "__main__":
+    stdin = sys.stdin.readlines()
+    session = json.loads("".join(stdin))
+    convert(session)

save_session/save_session.sh

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+#!/usr/bin/env sh
+
+# Dump the current kitty session:
+kitty @ ls >~/.config/kitty/save_session/kitty-dump.json
+# Convert this JSON file into a kitty session file:
+cat kitty-dump.json | python3 ~/.config/kitty/save_session/kitty-convert-dump.py >~/.config/kitty/sessions/saved-session.conf
+# Close the generator window: