astral-sh/ruff · error · anyhow::Error

Invalid `extend` value: {e}

Error message

Invalid `extend` value: {e}

What it means

Error "Invalid `extend` value: {e}" thrown in astral-sh/ruff.

Source

Thrown at crates/ruff_workspace/src/configuration.rs:571

                .map_err(|e| anyhow!("Invalid `cache-dir` value: {e}"))?,

            exclude: options.exclude.map(|paths| {
                paths
                    .into_iter()
                    .map(|pattern| {
                        let absolute = GlobPath::normalize(&pattern, project_root);
                        FilePattern::User(pattern, absolute)
                    })
                    .collect()
            }),
            extend: options
                .extend
                .map(|extend| {
                    let extend = shellexpand::full(&extend);
                    extend.map(|extend| PathBuf::from(extend.as_ref()))
                })
                .transpose()
                .map_err(|e| anyhow!("Invalid `extend` value: {e}"))?,
            extend_exclude: options
                .extend_exclude
                .map(|paths| {
                    paths
                        .into_iter()
                        .map(|pattern| {
                            let absolute = GlobPath::normalize(&pattern, project_root);
                            FilePattern::User(pattern, absolute)
                        })
                        .collect()
                })
                .unwrap_or_default(),
            extend_include: options
                .extend_include
                .map(|paths| {
                    paths
                        .into_iter()
                        .map(|pattern| {

View on GitHub (pinned to 672bb4edf0)

When it happens

Trigger: Thrown at crates/ruff_workspace/src/configuration.rs:571 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of astral-sh/ruff@672bb4edf0 (2026-08-16). Data as JSON: /api/errors/310d9d1e20d06160. Report an issue: GitHub.