Module log 

Shared stderr progress/timing log.

This lives in the foundation crate so every component — CLI stages and the sub-commands plugins shell out to (git, cargo metadata, rustc) — emits one consistent line format. All output goes to stderr (machine output and artifacts go to stdout/files), prefixed with a local HH:MM:SS.mmm stamp. Durations are printed to millisecond precision (0.231s).

Functions

line

Emit one stamped line to stderr: [HH:MM:SS.mmm] <msg>.

secs

Format a duration as seconds with millisecond precision, e.g. 0.231s, 29.900s. The single authority for how timings render across the tool.

stamp

Local wall-clock stamp, HH:MM:SS.mmm.

subcmd

Log a completed internal sub-command (an external tool code-split shelled out to) with its duration: [HH:MM:SS.mmm] ↳ <label> — 0.231s. The ↳ marks it as a nested step under the current stage.

timed

Time f, log it as a sub-command (see subcmd), and return its value. Wrap every git / cargo / rustc invocation in this so the cost of each external call is visible — these dominate the wall clock on a cold cache.