feat(cable): add kitty-days configuration for daily kitty session management

television/cable/kitty-days.toml

@@ -0,0 +1,75 @@
+[metadata]
+name = "kitty-days"
+description = """
+Daily kitty sessions saved by ~/.config/kitty/day_session.py, last modified
+first. The preview lists each tab's windows (cwd, the program restored in it)
+with the tail of its saved scrollback. Enter opens the day in a new kitty.
+"""
+requirements = ["kitty", "python3", "mtime-sort"]
+
+# Entries are "<day>  <weekday>  week of <monday>  <n> tabs\t<session file>".
+[source]
+command = '''
+for f in "$HOME"/.local/share/kitty-sessions/*/*.kitty-session; do
+  [ -e "$f" ] || continue
+  day=$(basename "$f" .kitty-session)
+  printf '%s  %s  week of %s  %s tabs\t%s\n' "$day" "$(date -d "$day" +%a)" \
+    "$(basename "$(dirname "$f")")" "$(grep -c '^new_tab' "$f")" "$f"
+done | mtime-sort
+'''
+shell = "bash"
+display = "{split:\\t:0}"
+output = "{split:\\t:1}"
+
+# The script avoids braces: tv would read them as templates.
+[preview]
+command = '''
+python3 - '{split:\t:1}' <<'PY'
+import json, os, shlex, sys
+
+FLAG = 'kitty-unserialize-data='
+home = os.path.expanduser('~')
+tab, cwd = 0, ''
+for line in open(sys.argv[1]).read().splitlines():
+    word, _, rest = line.partition(' ')
+    if word == 'new_tab':
+        tab += 1
+        print('\x1b[1mtab %d\x1b[m' % tab)
+    elif word == 'cd':
+        cwd = shlex.split(rest)[0]
+    elif word == 'launch':
+        args = shlex.split(rest)
+        data = json.loads(args.pop(0)[len(FLAG):]) if args and args[0].startswith(FLAG) else dict()
+        wcwd = next((a.partition('=')[2] for a in args if a.startswith('--cwd=')), cwd)
+        cmd = [a for a in args if not a.startswith('-')]  # kitty writes every option as --opt=value
+        dump, program = '', shlex.join(cmd)
+        for step in data.get('cmd_at_shell_startup', '').split('; '):
+            if step.startswith('cat '):
+                dump = shlex.split(step)[1]
+            elif step:
+                program = step
+        print('  \x1b[36m%s\x1b[m  %s' % (wcwd.replace(home, '~', 1), program))
+        if dump and os.path.exists(dump):
+            for l in open(dump, errors='replace').read().splitlines()[-6:]:
+                print('    ' + l + '\x1b[m')
+PY
+'''
+shell = "bash"
+
+# ctrl-e (edit) is bound globally in config.toml.
+[keybindings]
+enter = "actions:open"
+
+# Today's file, while no running kitty owns it, comes back as the live day
+# (saved again); any other day is a read-only snapshot.
+[actions.open]
+description = "Open the day in a new kitty"
+command = "setsid -f kitty --session '{split:\\t:1}' >/dev/null 2>&1"
+shell = "bash"
+mode = "execute"
+
+[actions.edit]
+description = "Open the session file in nvim"
+command = "nvim '{split:\\t:1}' </dev/tty >/dev/tty"
+shell = "bash"
+mode = "execute"