Module utils 

Modules

serde_base64

Serde adapter: Vec<u8> ↔ base64 string.

Structs

CheckResult

Check result with actionable error message

RetryConfig

Retry configuration

Enums

CappedLine

Outcome of one read_line_capped call.

Grace

How aggressively to tear a tree down.

HostClass

Functions

check_ollama_available

Check if Ollama is running and responding

check_ollama_model

Check if a specific model is available in Ollama

classify_host

Classify a URL host (hostname or IP literal, with optional [] around an IPv6 literal and an optional trailing FQDN dot).

confirm_or_refuse

Confirm a destructive action (default NO). assume_yes (a --yes/--force flag) is the explicit opt-in for scripted use; without it a non-interactive session refuses rather than proceeding silently. prompt is printed verbatim, followed by [y/N]:.

drain_complete_lines

Drain all complete newline-terminated lines out of buf, decoding each as UTF-8 and dropping the trailing \n. Any partial trailing line stays in buf so the caller can append more bytes and try again.

drain_sse_events

Drain all complete SSE events out of buf, returning the payload of each data: field. The [DONE] sentinel and non-data: fields are filtered out. Each returned String is exactly one event’s data (multi-line data: fields are joined with \n, per the SSE spec).

format_duration

Format a duration in seconds as a human-readable string.

format_relative_timestamp

Format a timestamp as a relative, human-readable string

gpu_vram_bytes

Total GPU VRAM in bytes (best-effort), or None if no GPU is detected.

init_logger

Initialize the logging system with tracing

is_affirmative

Whether s is y/yes (case-insensitive). Default is NO — anything else, including empty input / EOF, is declined.

log_debug

Log a debug message (backward compatible)

log_error

Log an error message with category prefix (backward compatible)

log_info

Log an info message with category prefix (backward compatible)

log_progress

Progress indicator for startup sequence

log_warn

Log a warning message with category prefix (backward compatible)

open_file

Open a file with the platform’s default application. Silently spawns the opener in the background (does not block).

output_with_timeout

Run cmd to completion with a deadline, capturing stdout/stderr — a Command::output() that cannot hang. On expiry the child is killed and (bounded-best-effort) reaped, and ErrorKind::TimedOut comes back. stdin is null.

private_temp_dir

Return (creating if needed) a 0700 per-user scratch directory under the app data dir. Callers write transient sensitive files here instead of the shared system temp dir.

read_capped

Like read_file_capped, but reads from an already-open std::fs::File.

read_file_capped

Read at most max_bytes from path. Returns (bytes, truncated) where bytes.len() <= max_bytes and truncated is true when the file was longer than the cap.

read_line_capped

Read one newline-delimited line from reader, refusing to buffer more than max_bytes before the newline.

redact_json

Walk a JSON value and redact every string leaf in place. The recorder uses this to scrub whole structured payloads at the single write choke point.

redact_secrets

Replace credential-shaped substrings of input with [REDACTED].

resolve_api_key

Resolve an API key from the environment.

resolve_api_key_with_fallback

Resolve an API key with a legacy fallback env var.

retry_async

Retry an async operation with exponential backoff, retrying on ANY error. For selective retries (skip terminal errors like HTTP 4xx) use retry_async_if.

retry_async_if

Retry an async operation with exponential backoff, but only while is_retryable returns true for the error. A terminal error (e.g. an HTTP 4xx on a non-idempotent POST) is surfaced immediately instead of being retried max_attempts times (#85).

should_refuse_noninteractive

Fail-closed policy: refuse a destructive/untrusted action when there is no interactive terminal to confirm at and the explicit opt-in was not passed. Also defeats yes | mermaid …, since a pipe is not a TTY.

system_ram_bytes

Total physical system RAM in bytes, or None if it can’t be read. Cached for the process (RAM doesn’t change during a session).

terminate_tree

Terminate pid’s process tree (async). Safe to call on a pid that has already exited — signals are best-effort and every error is swallowed.

terminate_tree_blocking

Blocking sibling for sync call sites (the daemon’s /stop / /restart run off a sync runtime client and can’t await).

truncate_content

Truncate content to a maximum character count (char-boundary safe)

truncate_web_content

Truncate web content using the default limit

write_stdin_with_timeout

Feed input to cmd’s stdin and wait for exit under a deadline — the write-side sibling of output_with_timeout. stdout/stderr go to null, so tools that fork a long-lived holder of their fds (wl-copy and xclip serve the selection from a background fork) can’t pin any pipe of ours.