Embed full argv at build time + README refresh (v0.9.1) - #43
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Adds RUSNEL_EMBED_ARGS to bake the entire default invocation (subcommand + flags + positional args) into the binary at build time, turning a pre-configured Rusnel into a true zero-config drop-and-run executable: launching it with no arguments runs the embedded command, while any explicit CLI args (including --help and other subcommands) still override. Build-time shlex-splitting surfaces quoting errors as a cargo build failure rather than a runtime panic in the deployed binary. Also refreshes the README: - reordered Server admin API section to sit after Authentication and Logging - collapsed embedded-credentials docs to a single representative drop-and-run example - trimmed admin API + logging sections to high-level prose, dropping internals (atomics ordering, span schema table) better suited to code docs Co-authored-by: Cursor <cursoragent@cursor.com>
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Summary
RUSNEL_EMBED_ARGSbuild-time env var. Bakes the entire defaultinvocation (subcommand + flags + positional args, shell-quoted) into
the binary. When the resulting executable is launched with no CLI
arguments, those baked-in args are used as the argv. Combined with
the existing
RUSNEL_EMBED_*credential vars, this produces a truezero-config drop-and-run binary that connects, authenticates, and
starts forwarding the moment it's run. Any explicit runtime args
still win, so
--help,cert,ctl, and ad-hoc overrides keepworking on a pre-configured build.
shlex-splitting (added as a[build-dependencies])means quoting errors fail the build, not the deployment.
build.rsemitsEMBED_ARGS: Option<&[&str]>;main.rs::resolve_argvsplices it in afterargv[0]only when noCLI args were passed.
README refresh
Server admin API & rusnel ctlsection to sit afterAuthenticationandLogging.long internals paragraph to one representative drop-and-run example
paragraph and the logging-span schema table — high-level prose only,
internals belong in code docs.
Net README diff: -60 lines, no section removed.
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