ckochandClaude Opus 5.5
db78b1f2e6
- python3 -m sandtable install-desktop puts a Gyre icon in the app grid and on the desktop (freedesktop .desktop entry with a "Quit Gyre" action). - The icon runs `launch`: starts the web page in the background (no terminal, own session, log in .cache/server.log) if it isn't running, then opens it. A dialog shows the reason if it can't start. - Quit link on the page (local computer only) and `quit`: stop any design, motors off, close the page. - Gyre icon (sandtable/static/gyre.svg), also the page's tab icon. - Simulator takes several lines per tick, so streaming tests aren't slowed. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
113 lines
4.3 KiB
Python
113 lines
4.3 KiB
Python
"""Start Gyre from a desktop icon: run the web page in the background (no terminal window) and
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open it in the browser. Used by the Gyre icon (`install-desktop` puts it in the app grid and on
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the desktop):
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python3 -m sandtable launch start if needed, then open the page
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python3 -m sandtable quit stop any design, motors off, close Gyre
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"""
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import json
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import os
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import shutil
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import subprocess
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import sys
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import time
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import urllib.request
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import webbrowser
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SOFTWARE = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
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ICON = os.path.join(SOFTWARE, 'sandtable', 'static', 'gyre.svg')
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LOG = os.path.join(SOFTWARE, '.cache', 'server.log')
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def status(port):
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"""The running Gyre page's status, or None if nothing (or something else) answers."""
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try:
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with urllib.request.urlopen(f'http://127.0.0.1:{port}/api/status', timeout=1.5) as r:
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d = json.load(r)
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return d if 'machine' in d else None
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except Exception:
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return None
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def say(title, msg, error=False):
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"""Tell the person at the desktop: a dialog if possible, else a notification."""
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print(f'{title}: {msg}', flush=True)
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if shutil.which('zenity'):
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subprocess.run(['zenity', '--error' if error else '--info', '--title', title, '--width', '420',
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'--text', msg], stderr=subprocess.DEVNULL)
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elif shutil.which('notify-send'):
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subprocess.run(['notify-send', '-a', 'Gyre', title, msg])
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def launch(port=8765):
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if status(port) is None:
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os.makedirs(os.path.dirname(LOG), exist_ok=True)
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log = open(LOG, 'a')
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log.write(time.strftime('\n=== %Y-%m-%d %H:%M:%S starting from the Gyre icon\n'))
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log.flush()
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subprocess.Popen([sys.executable, '-m', 'sandtable', 'web', '--no-browser', '--http-port', str(port)],
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cwd=SOFTWARE, stdout=log, stderr=subprocess.STDOUT, stdin=subprocess.DEVNULL,
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start_new_session=True) # keeps running after this launcher exits
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t_end = time.time() + 25
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while time.time() < t_end and status(port) is None:
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time.sleep(0.4)
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if status(port) is None:
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with open(LOG) as f:
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tail = ''.join(f.readlines()[-12:])
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say('Gyre could not start', f'The page did not come up. The last lines of its log:\n\n{tail}', error=True)
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return 1
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webbrowser.open(f'http://127.0.0.1:{port}/')
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return 0
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def quit_gyre(port=8765):
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try:
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req = urllib.request.Request(f'http://127.0.0.1:{port}/api/quit', data=b'{}', method='POST',
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headers={'Content-Type': 'application/json'})
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with urllib.request.urlopen(req, timeout=40) as r:
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ok = json.load(r).get('ok')
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except Exception:
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ok = False
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if not ok:
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say('Gyre', 'Gyre is not running.')
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return 0
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def install_desktop():
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"""Put a Gyre icon in the app grid and on the desktop (Linux desktops that follow the
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freedesktop.org standard: GNOME, KDE, Cinnamon, Xfce...)."""
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entry = f"""[Desktop Entry]
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Type=Application
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Name=Gyre
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GenericName=Sand art table
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Comment=Draw designs on the Gyre sand table
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Exec={sys.executable} -m sandtable launch
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Path={SOFTWARE}
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Icon={ICON}
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Terminal=false
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Categories=Utility;
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StartupNotify=false
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Actions=quit;
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[Desktop Action quit]
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Name=Quit Gyre
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Exec={sys.executable} -m sandtable quit
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"""
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apps = os.path.expanduser('~/.local/share/applications')
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os.makedirs(apps, exist_ok=True)
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places = [os.path.join(apps, 'gyre.desktop')]
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desktop = subprocess.run(['xdg-user-dir', 'DESKTOP'], capture_output=True, text=True).stdout.strip() \
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if shutil.which('xdg-user-dir') else os.path.expanduser('~/Desktop')
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if desktop and os.path.isdir(desktop) and desktop != os.path.expanduser('~'):
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places.append(os.path.join(desktop, 'Gyre.desktop'))
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for p in places:
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with open(p, 'w') as f:
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f.write(entry)
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os.chmod(p, 0o755)
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if shutil.which('gio'): # GNOME: allow launching from the desktop
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subprocess.run(['gio', 'set', p, 'metadata::trusted', 'true'], stderr=subprocess.DEVNULL)
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if shutil.which('update-desktop-database'):
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subprocess.run(['update-desktop-database', apps], stderr=subprocess.DEVNULL)
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for p in places:
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print(' wrote', p)
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return places
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