embassy/embassy-time/gen_tick.py

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import os
import toml
from glob import glob
abspath = os.path.abspath(__file__)
dname = os.path.dirname(abspath)
os.chdir(dname)
ticks = []
for i in range(10):
ticks.append(10**i)
for i in range(1, 25):
ticks.append(2**i)
for i in range(1, 10):
ticks.append(2**i * 1000000)
ticks.append(2**i * 9 // 8 * 1000000)
ticks.append(2**i * 3 // 2 * 1000000)
seen = set()
ticks = [x for x in ticks if not (x in seen or seen.add(x))]
# ========= Update Cargo.toml
things = {f'tick-hz-{hz:_}': [] for hz in ticks}
SEPARATOR_START = '# BEGIN TICKS\n'
SEPARATOR_END = '# END TICKS\n'
HELP = '# Generated by gen_tick.py. DO NOT EDIT.\n'
with open('Cargo.toml', 'r') as f:
data = f.read()
before, data = data.split(SEPARATOR_START, maxsplit=1)
_, after = data.split(SEPARATOR_END, maxsplit=1)
data = before + SEPARATOR_START + HELP + toml.dumps(things) + SEPARATOR_END + after
with open('Cargo.toml', 'w') as f:
f.write(data)
# ========= Update src/tick.rs
with open('src/tick.rs', 'w') as f:
f.write('// Generated by gen_tick.py. DO NOT EDIT.\n\n')
for hz in ticks:
f.write(f'#[cfg(feature = "tick-hz-{hz:_}")] pub const TICK_HZ: u64 = {hz:_};\n')
f.write('#[cfg(not(any(\n')
for hz in ticks:
f.write(f'feature = "tick-hz-{hz:_}",\n')
f.write(')))] pub const TICK_HZ: u64 = 1_000_000;')
os.system('rustfmt src/tick.rs')