{"record":{"id":"e56f919a69dd7051","repo":"Hmbown/CodeWhale","slug":"failed-to-fetch-description-from-url","errorCode":null,"errorMessage":"failed to fetch {description} from {url}","messagePattern":"failed to fetch (.+?) from (.+?)","errorType":"http","errorClass":"anyhow::Error","httpStatus":null,"severity":"error","filePath":"crates/cli/src/update.rs","lineNumber":994,"sourceCode":"            Ok((status, body)) if status.is_success() => return Ok(body),\n            Ok((status, body)) => {\n                let error =\n                    anyhow!(\"failed to fetch {description} from {url}: HTTP {status}\\n{body}\");\n                if should_retry_http_status(status) && attempt < UPDATE_HTTP_ATTEMPTS {\n                    last_error = Some(error);\n                    sleep_before_update_retry(attempt);\n                    continue;\n                }\n                return Err(error);\n            }\n            Err(error) if attempt < UPDATE_HTTP_ATTEMPTS => {\n                last_error = Some(error);\n                sleep_before_update_retry(attempt);\n            }\n            Err(error) => return Err(error),\n        }\n    }\n    Err(last_error.unwrap_or_else(|| anyhow!(\"failed to fetch {description} from {url}\")))\n}\n\nfn should_retry_http_status(status: reqwest::StatusCode) -> bool {\n    status.is_server_error()\n        || status == reqwest::StatusCode::REQUEST_TIMEOUT\n        || status == reqwest::StatusCode::TOO_MANY_REQUESTS\n}\n\nfn sleep_before_update_retry(attempt: usize) {\n    std::thread::sleep(Duration::from_millis(\n        UPDATE_HTTP_RETRY_DELAY_MS * attempt as u64,\n    ));\n}\n\nfn fetch_latest_release_from_url(url: &str, proxy: Option<&Proxy>) -> Result<Release> {\n    let body = fetch_release_json(url, \"release info\", proxy)?;\n    let release: Release = serde_json::from_str(&body).with_context(|| {\n        format!(\"failed to parse release JSON from GitHub API. Response: {body}\")","sourceCodeStart":976,"sourceCodeEnd":1012,"githubUrl":"https://github.com/Hmbown/CodeWhale/blob/8880682c63083a91624de936797efa3ce9e498fd/crates/cli/src/update.rs#L976-L1012","documentation":"Defensive fallback arm of fetch_release_json's retry loop: returned only when the loop (1..=UPDATE_HTTP_ATTEMPTS, currently 3) exits without a single attempt recording an error. Every real failure carries a more specific message (HTTP status or transport context); this one has no cause attached and is effectively unreachable in shipped builds.","triggerScenarios":"Only possible if the loop body never runs, i.e. UPDATE_HTTP_ATTEMPTS was changed to 0 in a modified build, or the loop logic was rewritten. All real transport/HTTP errors surface through the other arms.","commonSituations":"Practically none; seeing it means the binary was built from modified source (a fork lowered UPDATE_HTTP_ATTEMPTS) or it is being read in code review.","solutions":["Treat it as an internal invariant violation: capture the exact build and file an issue","If you maintain a fork, keep UPDATE_HTTP_ATTEMPTS >= 1","Look for the real failure in preceding errors; this message deliberately carries no cause"],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":null,"typeGuard":null,"tryCatchPattern":"Propagate as an internal error without retrying: this message carries no cause, so retry logic cannot be informed by it. Wrap it in a context identifying the caller and report upstream.","preventionTips":["Never rebuild with UPDATE_HTTP_ATTEMPTS set to 0","If you fork the retry loop, guarantee the loop body always records or returns an error"],"tags":["network","http","unreachable","defensive"],"backgroundTag":null,"analyzedSha":"8880682c63083a91624de936797efa3ce9e498fd","analyzedAt":"2026-08-16T11:31:27.956Z","schemaVersion":2},"datasetVersion":"2026-08-16T13:17:31.715Z"}