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Cache what has been looked up, make it browsable, and say where this lives

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Four things asked for in turn, landing together because they run through the
same files.

THE MAPS.  The tiles were already cached and always had been -- a second
evening on the same view was measured at nought network requests -- but the
work done on them was not.  Every window open decoded forty PNGs and resampled
a megapixel and a half into this program's own projection, for an answer that
cannot have changed, because a coastline does not move.  The finished map is
kept beside the tiles now: 0.61 seconds become 0.01, byte for byte identical,
two hundred kilobytes a view.  Both windows and both kinds of still picture get
it, all four reaching the ground through one function.  A map with squares
missing is deliberately not kept, since caching a hole would keep it for a
month and the point of calling a partial map provisional is that it is asked
for again.  And because this adds a disk consumer, the whole cache is now
pruned to four hundred megabytes, least recently *used* first: a tile fetched a
year ago and looked at last night is the receiver's own neighbourhood, and
discarding that to keep last week's holiday is the wrong way round.

THE LOOKUPS.  APRS and FT8 now ask who each station is licensed to.  Every
other mode that hears a callsign already did -- speech transcripts, Morse
idents, the recording browser -- and all five resolve through one file, so a
callsign heard on two bands is asked about once.  The rules for finding the
licensed callsign inside a heard one are now in one place rather than per band,
because getting them wrong is silent: a register asked about W1AW-9 returns
nothing, which looks exactly like a station that is not licensed.  An SSID, a
rover suffix, a guest prefix, a digipeater alias and an unspelled hash all come
off or are refused.

The bug worth recording is that the first cut of this did the lookups and threw
them away.  The book has to be told to save and was not, so every evening would
have asked the register about the same net again -- which is the one thing
caching them was for, and is invisible from inside a single run because the
answers are all in memory while it lasts.  Caught by looking at the file on
disk rather than at the display.  There is a test for each side of it now, and a
register of which modules resolve callsigns at all, which fails when a new one
starts so that somebody has to decide whether it should.

THE REGISTER.  c in saunterbrowse opens everything ever looked up: sixty-odd
callsigns and sixteen hundred aircraft here, every field of each in two columns
because a licence has a dozen and a screen is wider than it is tall.  tab
switches, / searches every field rather than the name -- the question is
usually "who was in Arizona" rather than "which callsign" -- and g opens the
place in a browser.  Only the coordinates go into that link: a map does not
need to be told whose licence it is looking at, and the link is the one part of
this that leaves the machine.  A headless box, which is the normal case for a
receiver, gets the coordinates printed instead.  Callsigns no register could
place are kept rather than dropped, because "asked about, and in no register
reachable from here" is a fact about a station.

THE FRONT OF IT.  A title screen for each program: five rows of blocks cut by
hand, a figlet dependency to draw eleven letters being the largest thing that
would then be in the requirements, coloured blue to red across the width, which
is the ramp every waterfall here already uses because it is what a spectrum
looks like.  The interesting part is where it does not appear -- everything
here can be piped into something else and a banner in the middle of that is
corruption rather than decoration, so anything that is not a terminal gets
nothing, --help is untouched because it is drawn after parsing, --no-splash
turns it off for a run and BANDSAUNTER_NO_SPLASH=1 for good.

And the address.  INSTALL.md said "git clone <the repository>" for a long time:
a placeholder in the first command anybody types, unnoticed because nothing
reads install instructions except somebody installing, who then cannot.  It is
filled in, along with the readme, the metadata, both manuals and the Homepage
field of all three packages.  The tile server's User-Agent pointed at a topic
listing on somebody else's site for want of an address of its own; the usage
policy of that service asks for one naming the application and giving somewhere
to look it up, so an operator with a question about the traffic has somebody to
ask, and now it gives the real one.  Seven tests so the placeholder cannot come
back, verified by putting it back and watching two of them fail.

One thing forced by all this: the keys page in saunterbrowse was exactly as
tall as an eighty-by-twenty-four terminal, so the register entry pushed "q
quit" off the bottom.  A test caught it.  Home and End have merged into the
Page Up line, which were always the same thought.

THE WINDOWS.  They open maximised now, this being a map and the thing anybody
wants more of being map; f goes to true full screen and back, and is written
along the top of the screen because a window with no frame is one somebody has
to know a key to get out of.  Maximised rather than frameless by default,
because the title bar is where the band and the frequency are written.

And a map made bigger now gets a sharper map, which it did not.  The window
only ever re-examined the ground when the view left the box that had been
fetched, so a window opened at its default size and taken to the whole screen
kept the map it started with until an aircraft wandered far enough to move it
-- on a quiet band, a long time to look at a blurred coastline.  Measured
before it was believed: 1100 to 1920 asked for nothing and stretched a
1364-pixel map across 1920, then across 3840.  It now compares map pixels per
degree in hand against what the view wants, and asks when it is being blown up
by more than fifteen per cent.

That comparison has to be per degree rather than pixel against pixel, which a
surviving mutation was what established: the fetched box is a quarter wider
than the view, so a map with exactly as many pixels as the window is wide has
only four fifths of them on the screen.  The two ways of measuring agree
everywhere except a narrow band, and the realistic case sits inside it.  There
is a test pinning that case now.  Asking is safe at any size, because the
request is keyed on the window's dimensions: once answered, nothing more is
asked, which is what stops a window larger than the tile budget can cover from
asking all evening.

The braille, while this was open.  The banners were blocks in capitals; they
are braille in mixed case, two dots wide and four tall to a character, which is
eight times the detail and is what makes room for two heights of letter at
once -- a five-row block font has no second height to spend, so the name came
out shouted.  Two attempts failed first: thin one-dot strokes came out as
confetti, because braille dots render as dots and a one-dot stroke reads as a
dotted line rather than a line.  What worked was cutting the font small, at cap
height seven where there is only one way to draw each letter, and doubling it.
Coloured deep blue through cyan to a cool white, which is deliberately not the
waterfall ramp the rest of the program draws in: that one has to run to red
because it stands in for a spectrum, and a title screen stands in for nothing.

One hundred and four new tests.  Full suite 2892 passed.  Built as
2026-09-24_01.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016PsWPTweCT6pwxKngvVxcg
This commit is contained in:
The Dust Council 2026-09-24 00:36:18 -07:00
parent 93120b80a6
commit 2665a17a22
27 changed files with 3733 additions and 49 deletions
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191
tests/test_aprs.py
View file

@ -1222,3 +1222,194 @@ def test_a_station_that_never_said_where_it_is_has_no_position_row():
rows = dict((label, value) for label, value, _f
in ap.station_lines(station_of(">Monitoring 146.52")))
assert "position" not in rows
# ---------------------------------------------------------------------------
# Who each station is
# ---------------------------------------------------------------------------
def _book(tmp_path, entries=()):
"""A register that knows what it is told and asks nobody anything."""
from bandsaunter.callsign import CACHE_VERSION, Callsign, CallsignBook
book = CallsignBook(online=False, cache=tmp_path / "callsigns.json")
for call, name, where in entries:
book._entries[call] = Callsign(
call=call, name=name, location=where, status="found",
version=CACHE_VERSION, fetched_at=time.time())
return book
@pytest.mark.parametrize("given,wanted", [
("W1AW-9", "W1AW"), ("KU0W", "KU0W"), ("VK4BLE-7*", "VK4BLE"),
("n0call-15", "N0CALL"), ("", ""),
])
def test_the_licensed_callsign_is_found_inside_the_aprs_one(given, wanted):
"""An SSID says which of a station's radios this is -- the ninth is a
car, the second a digipeater -- and a star marks the hop a packet came
through. No licence register has heard of either."""
assert ap.base_call(given) == wanted
def test_a_station_is_looked_up_once_when_it_is_first_heard(tmp_path):
book = _book(tmp_path)
net = ap.Net(book=book)
for _ in range(5):
net.add(packet(source="W1AW-9"))
net.add(packet(source="KU0W"))
# One entry per licensed callsign, not per packet and not per SSID.
assert set(book._entries) == {"W1AW", "KU0W"}
def test_an_object_somebody_placed_is_not_looked_up(tmp_path):
"""An object is a marker one station put on the map on behalf of
something that has no licence of its own -- a net, a hilltop, a
storm -- so asking who it is licensed to is asking the wrong question."""
book = _book(tmp_path)
net = ap.Net(book=book)
net.add(packet(";LEADVL *111111z3900.00N/10500.00W- a place",
source="W1AW"))
assert "LEADVL" not in book._entries
def test_the_name_arrives_without_the_display_waiting_for_it(tmp_path):
"""A table that stopped for a network request would stop for every new
station on a busy channel."""
book = _book(tmp_path)
net = ap.Net(book=book)
net.add(packet(source="W1AW-9"))
who = ap.licensee(net, "W1AW-9")
assert who is not None and who.call == "W1AW"
# Nothing is known yet and that is not an error.
assert ap.who_text(who) in ("", "…", "United States")
def test_a_name_that_has_arrived_is_shown_with_where_it_is(tmp_path):
book = _book(tmp_path, [("W1AW", "ARRL HQ Operators Club",
"Newington, CT")])
net = ap.Net(book=book)
net.add(packet(source="W1AW-9"))
assert ap.who_text(ap.licensee(net, "W1AW-9")) == \
"ARRL HQ Operators Club — Newington, CT"
def test_a_station_the_register_cannot_know_still_says_where_it_is_from():
"""The databases are United States registers. A blank cell beside an
Australian callsign reads as a lookup that failed rather than as a
question that was never going to be answered, and the country comes out
of the callsign's own structure with no network at all."""
from bandsaunter.callsign import Callsign
who = Callsign(call="VK4BLE", country="Australia", status="unlisted")
assert ap.who_text(who) == "Australia"
def test_no_lookups_at_all_when_they_are_turned_off():
book = ap.open_book(ap.AprsOptions(lookup=False))
assert book.online is False
def test_the_box_on_the_map_says_who_the_station_is(tmp_path):
book = _book(tmp_path, [("W1AW", "ARRL HQ Operators Club",
"Newington, CT")])
net = ap.Net(book=book)
station = net.add(packet(source="W1AW-9"))
lines = ap.station_lines(station, None, False, ap.licensee(net, "W1AW-9"))
labels = [label for label, _value, _flag in lines]
assert labels[:2] == ["licensed to", "at"], labels
assert lines[0][1] == "ARRL HQ Operators Club"
assert lines[1][1] == "Newington, CT"
def test_the_box_says_nothing_about_a_licence_it_does_not_have(tmp_path):
net = ap.Net(book=_book(tmp_path))
station = net.add(packet(source="W1AW-9"))
lines = ap.station_lines(station, None, False, None)
assert "licensed to" not in [label for label, _v, _f in lines]
def test_the_report_gives_a_column_for_who_each_station_is(tmp_path):
book = _book(tmp_path, [("W1AW", "ARRL HQ Operators Club",
"Newington, CT")])
net = ap.Net(book=book)
net.add(packet(source="W1AW-9"))
console = Console(width=160, force_terminal=False)
with console.capture() as caught:
ap.report(console, net, ap.AprsOptions(lookup=True))
shown = caught.get()
assert "licensed to" in shown
assert "ARRL HQ Operators Club" in shown
def test_the_report_leaves_the_column_out_when_lookups_are_off(tmp_path):
net = ap.Net(book=_book(tmp_path))
net.add(packet(source="W1AW-9"))
console = Console(width=160, force_terminal=False)
with console.capture() as caught:
ap.report(console, net, ap.AprsOptions(lookup=False))
assert "licensed to" not in caught.get()
def test_the_answers_are_kept_on_the_disk_and_shared(tmp_path):
"""The point of the whole thing: the same net logged night after night
is asked about once a month, and every part of this program that
resolves a callsign reads the same file."""
from bandsaunter.callsign import CallsignBook, _cache_path
book = _book(tmp_path, [("W1AW", "ARRL HQ Operators Club",
"Newington, CT")])
book._dirty = True
book.save()
again = CallsignBook(online=False, cache=tmp_path / "callsigns.json")
assert again.get("W1AW").name == "ARRL HQ Operators Club"
# And by default it is the one file everything else uses.
assert _cache_path() == ap.open_book(ap.defaults()).cache_path
def test_the_answers_are_written_to_the_disk_when_the_run_ends(tmp_path):
"""Without this the lookups happen and are thrown away, so every
evening asks the register about the same net again -- which is the one
thing caching them was for, and is invisible from inside a single run
because the answers are all in memory while it lasts."""
from bandsaunter.callsign import CACHE_VERSION, Callsign, CallsignBook
where = tmp_path / "callsigns.json"
book = CallsignBook(online=False, cache=where)
net = ap.Net(book=book)
net.add(packet(source="W1AW-9"))
book._entries["W1AW"] = Callsign(call="W1AW", name="ARRL HQ",
location="Newington, CT",
status="found", version=CACHE_VERSION,
fetched_at=time.time())
book._dirty = True
heard = ap.Heard()
heard.net = net
console = Console(width=120, force_terminal=False)
with console.capture():
ap.finish(console, ap.AprsOptions(report=False, csv=False, kml=False),
str(tmp_path), heard)
assert where.exists(), "the run ended without writing what it learned"
assert CallsignBook(online=False, cache=where).get("W1AW").name == "ARRL HQ"
def test_a_quiet_evening_still_keeps_what_it_learned(tmp_path):
"""A run that heard one station and no more still found out who that
station was. The early return for an empty net used to skip the
saving with it."""
from bandsaunter.callsign import CACHE_VERSION, Callsign, CallsignBook
where = tmp_path / "callsigns.json"
book = CallsignBook(online=False, cache=where)
book._entries["KU0W"] = Callsign(call="KU0W", name="Rod R Gowdy",
status="found", version=CACHE_VERSION,
fetched_at=time.time())
book._dirty = True
heard = ap.Heard()
heard.net = ap.Net(book=book) # nothing heard at all
console = Console(width=120, force_terminal=False)
with console.capture() as caught:
ap.finish(console, ap.AprsOptions(report=False), str(tmp_path), heard)
assert "nothing heard" in caught.get()
assert CallsignBook(online=False, cache=where).get("KU0W").name == \
"Rod R Gowdy"