chore: release v0.21.0

[mre]

🤖 New release

• lychee-lib: 0.20.1 -> 0.21.0 (⚠ API breaking changes)
• lychee: 0.20.1 -> 0.21.0

⚠ lychee-lib breaking changes

--- failure enum_tuple_variant_field_added: pub enum tuple variant field added ---

Description:
An enum's exhaustive tuple variant has a new field, which has to be included when constructing or matching on this variant.
        ref: https://doc.rust-lang.org/reference/attributes/type_system.html#the-non_exhaustive-attribute
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.43.0/src/lints/enum_tuple_variant_field_added.ron

Failed in:
  field 1 of variant Status::Redirected in /tmp/.tmpD6WKD0/lychee/lychee-lib/src/types/status.rs:31

--- failure enum_variant_missing: pub enum variant removed or renamed ---

Description:
A publicly-visible enum has at least one variant that is no longer available under its prior name. It may have been renamed or removed entirely.
        ref: https://doc.rust-lang.org/cargo/reference/semver.html#item-remove
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.43.0/src/lints/enum_variant_missing.ron

Failed in:
  variant ErrorKind::TooManyRedirects, previously in file /tmp/.tmpIFc8L4/lychee-lib/src/types/error.rs:163

--- failure inherent_method_missing: pub method removed or renamed ---

Description:
A publicly-visible method or associated fn is no longer available under its prior name. It may have been renamed or removed entirely.
        ref: https://doc.rust-lang.org/cargo/reference/semver.html#item-remove
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.43.0/src/lints/inherent_method_missing.ron

Failed in:
  Input::get_input_sources, previously in file /tmp/.tmpIFc8L4/lychee-lib/src/types/input.rs:237

Changelog

lychee-lib

0.21.0 - 2025-10-21

Added

• print warning if input source matches no files (#1865)
• (base-url) [breaking] disallow relative local base to avoid confusion (#1857)
• improve InvalidIndexFile error to mention index file names (#1859)

Fixed

• do not reuse excluded status from cache (#1850)
• fields missing from config.toml parsing logic (#1843)
• add support for name attributes in HTML fragment extraction (#1839)

Other

• Bump the dependencies group across 1 directory with 15 updates (#1874)
• Man pages (#1858)
• Extract spans (#1870)
• Remove truncate_source logic (#1847)
• Add --default-extension argument to force file format (#1842)
• hard wrap help text for options (#1854)
• Bump the dependencies group with 6 updates (#1855)
• Additional redirect reporting (#1853)
• Fix extraction of reference links in Markdown (#1841)
• Redirect reporting (#1725)
• Add WinGet installation instructions (#1849)
• [breaking] use ResolvedInputSource downstream of InputContent (#1840)
• Bump the dependencies group with 5 updates (#1845)
• Implement --files-from Option (#1836)
• Optimize InputSource handling with Cow and add benchmarks (#1832)
• Ignore Links in Markdown Link Text (#1831)
• (file checker) separate resolving and checking for easier testing (#1830)
• Refactor Input Handling (#1827)
• Fix links in doc comments (#1828)
• apply fallback extensions if directory links resolve to a dir (#1826)
• clarify --base-url and --root-dir and their interactions (#1787)
• Refactor collector and input (#1823)
• add conda install to readme (#1822)
• Bump the dependencies group with 3 updates (#1821)
• Refactor error reporting (#1731)

lychee

0.21.0 - 2025-10-21

Added

• print warning if input source matches no files (#1865)
• (base-url) [breaking] disallow relative local base to avoid confusion (#1857)
• improve InvalidIndexFile error to mention index file names (#1859)

Fixed

• move log level padding outside brackets (#1871)
• do not reuse excluded status from cache (#1850)
• fields missing from config.toml parsing logic (#1843)

Other

• Do not require inputs with generate flag
• Bump the dependencies group across 1 directory with 15 updates (#1874)
• Inline formatting arguments for anyhow macros as per new lint
• Man pages (#1858)
• Add --default-extension argument to force file format (#1842)
• hard wrap help text for options (#1854)
• Bump the dependencies group with 6 updates (#1855)
• add exhaustivity check for fold_in! macro (#1848)
• Additional redirect reporting (#1853)
• Redirect reporting (#1725)
• Add WinGet installation instructions (#1849)
• [breaking] use ResolvedInputSource downstream of InputContent (#1840)
• Bump the dependencies group with 5 updates (#1845)
• Implement --files-from Option (#1836)
• apply fallback extensions if directory links resolve to a dir (#1826)
• clarify --base-url and --root-dir and their interactions (#1787)
• Add test for making sure URL inputs always get checked (#1824)
• add conda install to readme (#1822)
• Bump the dependencies group with 3 updates (#1821)
• Refactor error reporting (#1731)

---

This PR was generated with release-plz.

[eread]

@mre Do you have any sort of time frame for the release? I'd be interested to see if #1834 worked.

[thomas-zahner]

@eread I'd like to make a new release soon, probably this week.

Do you know why the Docker / build (push) started to fail on master? Note that I just made changes to the Release Binary workflow, but the errors already happened prior to these changes.

Seems to be caused by:

#9 6.849 --2025-10-17 09:20:08--  https://github.com/lycheeverse/lychee/releases/download/nightly/lychee-x86_64-unknown-linux-gnu.tar.gz
#9 6.864 Resolving github.com (github.com)... 140.82.116.4
#9 6.866 Connecting to github.com (github.com)|140.82.116.4|:443... connected.
#9 6.972 HTTP request sent, awaiting response... 404 Not Found
#9 7.153 2025-10-17 09:20:09 ERROR 404: Not Found.

So the question is, why these assets no longer show up on the "nightly" release.

[thomas-zahner]

@eread Ah, never mind. With e0912ab it works again. The problem was that not all assets showed up in the nightly release, but still not quite sure about the root cause and why it happened before my changes 😅

[eread]

@eread Ah, never mind. With e0912ab it works again. The problem was that not all assets showed up in the nightly release, but still not quite sure about the root cause and why it happened before my changes 😅

@thomas-zahner I'm glad! Perhaps just a transient error?