Create timestamp records for recursive operations on directory trees.
Project description
Treestamps
A library to set and retrieve timestamps to speed up operations run recursively on directory trees.
Documentation is pretty poor. Read the code for now.
Usage
Used in picopt and nudebomb. You can see how it's used in those projects.
from pathlib import Path
from treestamps import Grovestamps, GrovestampsConfig
config = GrovestampsConfig(
"MyProgramName",
paths=("/foo", "/bar"),
program_config={ "option_a": True, "option_b": False}
)
gs = Grovestamps(config)
timestamp = gs[Path("/foo")].get()
assert None == timestamp.get("file_relative_to_foo.txt")
mtime = timestamp.set("file_relative_to_foo.txt")
# mtime ~= now()
# Also writes to `/foo/.MyProgramName_treestamps.wal.yaml`
gs.dump()
Dumping removes /foo/.MyProgramName_treestamps.wal.yaml and writes to
/foo/.MyProgramName_treestamps.yaml and /bar/.MyProgramName_treestamps.yaml
# With similar config to above
gs = Grovestamps(config)
# Auto loads timestamps relevant to paths in config.
timestamp_foo = gs[Path("/foo")].get()
mtime_b = timestamp_foo.get("file_relative_to_foo.txt")
mtime_a = timestamp_foo.get("another_file_relative_to_foo.txt")
# mtime will be the time gs.dump() you called above.
assert mtime_a == mtime_b
timestamp_bar = gs[Path("/bar")].get()
mtime_c = timestamp_foo.get("file_relative_to_bar.txt")
assert mtime_c == mtime_a
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