Module source 

Source URL generation and sha256 computation.

Structs

ExtractedSource

An extracted crate source tree in a temporary directory.

GitHubRepo

Parsed GitHub repository info.

ResolvedGitHubSource

Resolved GitHub source info.

Functions

compute_sha256

Download a URL and compute its sha256 hex digest.

crates_io_url

Construct a crates.io download URL.

extract_tar_gz

Extract a gzipped tarball (bytes) into a new temp directory and return the path to the single top-level directory inside it (the “crate root”).

fetch_and_extract

Download a tarball, compute its sha256, and extract it to a temp directory. Returns the hash and the extracted source tree.

fetch_github_raw

Fetch a raw file from a GitHub repo at a given tag.

fetch_github_tree

Fetch the file listing of a GitHub repo at a given tag using the Trees API. Returns a list of file paths relative to the repo root.

github_archive_url

Construct a GitHub archive URL for a given tag/version with a tag prefix.

is_prerelease_tag

Returns true if the tag looks like a pre-release version. Detects common pre-release suffixes: -alpha, -beta, -rc, -dev, -pre.

is_valid_sha256

Returns true if the given string looks like a valid SHA256 hex digest.

latest_github_release

Fetch the latest release tag from a GitHub repo. Tries both the releases API and tags API, then picks the best version-like tag. Skips non-version tags like “latest”, “nightly”, etc. Returns the tag name (e.g., “v1.2.3” or “1.2.3”).

looks_like_version_tag

Returns true if the given string looks like a version tag. Matches patterns like v1.2.3, 1.2.3, v.1.2.3, tool-v1.2.3, etc. Returns false for tags like latest, nightly, stable.

resolve_github_source

Try to resolve the correct GitHub archive URL and compute its SHA256. When tag_override is provided, it is used directly without tag prefix detection. Otherwise, tries v-prefixed tag first, then bare version. When use_refs_tags is true, the URL template uses /archive/refs/tags/ instead of /archive/.

tag_to_jinja_template

Replace the version portion of a tag with the jinja {{ version }} placeholder. If the tag does not contain the version, returns the literal tag.

tag_to_version

Strip a version prefix (v or v.) from a tag to get a bare version string. Handles v1.2.3, v.1.2.3, and bare 1.2.3 patterns.