A stray trailing comma made the update detail a one element tuple, so a
firmware error printed as a python tuple. A missing status printed the whole
response dict. A failure that named no node was dropped entirely, which is how
a service data request that the server refused came out as silence and a
success exit code, and nodestorage, nodelicense and nodesupport exited zero
even when they had reported an error.
nodeconsole crashed decoding an absent screenshot, and again on the terminal
calls behind a pipe, where a log replay crashed too; refuse the terminal only
modes cleanly and dump the log when there is no terminal to replay into.
nodedefine raised a ValueError on an argument without an equals sign, and
firmware for a category the target does not describe printed usage as though
the question had been malformed.
On the server side the readability check was applied to the path a download is
saved to, so asking for service data or saved licences at a path that does not
exist yet failed claiming the destination was not readable.
nodeconsole spawned a task per input byte from the stdin reader callback
and kept no reference to it. Two of those tasks overlap as soon as one
parks in relay_keypresses waiting on the VNC connection, so keystrokes
can reach the node out of order and the escape sequence state (buffer,
inputcontext, modkeys) is mutated by more than one task at a time. With
the first keystroke relaying slowly, typing abcdef arrives as bcdefa.
Those tasks were also unreferenced, which asyncio documents as
collectable while still pending, so a keypress could be dropped.
Queue the bytes in the reader callback and process them from one
long-lived task instead. Keep a reference to the watch_input task as
well, since collecting that one takes the whole input handler with it.
Entirely mechanical, produced by `ruff check --fix --select F401,F541,E713`
and reviewed rather than taken on faith: deleting an import is only safe if
nothing imports it for its side effects or re-exports it. None of the 19
removed names is referenced anywhere in its file, none appears in any string
literal, and none of the touched files uses eval, exec, globals() or
__import__, so there is no dynamic lookup that could reach them.
Every one of these raises NameError if its code path is reached:
- nodeapply: run_automation accumulated into an exitcode that only existed
in run(), so any automation error crashed instead of being reported. It
now keeps and returns its own, tracked separately from the exit code of
the ssh commands: the early exit after the spawn loop tests that one,
and folding automation failures into it would exit with children already
running and their pipes abandoned. Both are reported at the real exits.
- nodeconsole: redraw() reads firstnodename, which was local to
do_screenshot(); promote it to a module global like the other drawing
state.
- nodedeploy: the redeploy path appended to a lockednodes list that did not
exist yet. The block that follows re-reads the same lock state and acts
on it, so drop the dead duplicate.
- samples/nodeattrib_from_switch.py, misc/filterpasswd: missing import sys.
- xcc3: fixuuid was never imported. xcc imports xcc3, so take a local copy
the way the smm handler does instead of creating an import cycle.
- httpapi: the async session call still passed the WSGI-era env and an
extra argument to handle_async(), which has taken only querydict since
the aiohttp port. Calling it correctly exposed that handle_async()
registers an AsyncSession before raising on the discontinued long poll
path, so every request to it would leak a session that is never reaped.
It now only creates one when there is a websocket handler to yield it to.
- messages: the InputFirmwareUpdate.filename property checked
self.filebynode[node] with no node in scope. __init__ already validates
every expanded path and nodefile() rechecks per node, so drop the checks.
- pam: drop the python2 branches referencing unicode and raw_input. The
server has been python3 only since the asyncio port.
- cooltera: the sensor-name listing referenced a nonexistent sensors dict.
The available sensors depend on the model, which is only known after
reading the device, so list them from the same status data the readings
use.
- deltapdu, eatonpdu, geist: the not-implemented response in update() used
node outside the loop, unlike retrieve() in the same files and unlike
raritan/enlogic.
- confluentdbgcli: stray self. on a module-level socket connect.
nodediscover's rescan poll and nodeconsole's screenshot refresh both slept
with time.sleep inside a coroutine. In nodeconsole --video that stops the
input handler and the VNC streaming tasks for the whole interval.
Replace input handling with an async, this
permitts screen updates while doing commands.
Implement 'send break' (sysrq) and focus move.
Indicate not-yet-active focus with titlebar color.
During the async vnc behavior, a copy of the geometry variables
are used that are out of sync.
Workaround by forcing a resize again after the async tasks conclude.
It turns out that specifying height and width explicitly
does not guarantee that the image protocols will actually fill
the specified space. Notably iterm will honor aspect ratio
(which is good), but leave the cursor where the image would
naturally leave it (which is difficult with relative positioning).
Previously, relative positioning was used as a workaround
for the fact that save/restore or any absolute positioning may
be fouled by incurring scroll.
To make cursor save/restore work, we determine the total rows and
print newlines enough to incur scroll and then move cursor back up.
This lets us use save/restore to ignore cursor movement by the image.
When parceling out the screen real estate, avoid either the height
or the width from getting way out of proportion.
Better to let screen be unused than abuse it to distort the
aspect ratio too much.
Only for kitty graphics protocol.
Also, attempt to use pillow to convert, if available. Kitty itself
needs this, Konsole can work either way.
It currently does not preserve aspect ratio, to do that
we pretty much need to do some work with pillow.
If we specify just the height, then ratio is preserved, but it won't
honor the designed bounding box on wide screenshots. Also
Konsole won't even honor just one scaling factor.
So the better thing would be to determine the aspect ratio, which
needs pillow.
This directs CLI with image output to use a preferred protocol.
This is retroactively applied to stats.
Currently we prefer kitty, as it seems to be the most widely supported.
Though some things only support iterm, so that's an option.
And some only support sixel, but the user has to be the one to
figure out adding pysixel dependency.
Jarrod Johnson
Markus Hilger
Tinashe