docs: list supported sdist formats (#7168)

## Summary

Explicitly list the formats and extensions that uv supports, based on
[this
list](https://github.com/astral-sh/uv/blob/86ee8d2c0134692dec85901bf2a7f459ea01bbd6/crates/distribution-filename/src/extension.rs#L70-L77).
Not a huge fan of adding the section in `concepts/resolution.md`, but I
did not find a better place. Alternatively we could maybe add a
dedicated page that shortly explains Python package types (wheels,
sdists), where such a section could live?

## Test Plan

Local run of the documentation.

README.md

@@ -31,8 +31,8 @@ An extremely fast Python package and project manager, written in Rust.
   [inline dependency metadata](https://docs.astral.sh/uv/guides/scripts#declaring-script-dependencies).
 - 🗂️ Provides [comprehensive project management](#project-management), with a
   [universal lockfile](https://docs.astral.sh/uv/concepts/projects#project-lockfile).
-- 🔩 Includes a [pip-compatible interface](#the-pip-interface) for a performance boost with a
-  familiar CLI.
+- 🔩 Includes a [pip-compatible interface](#a-pip-compatible-interface) for a performance boost with
+  a familiar CLI.
 - 🏢 Supports Cargo-style [workspaces](https://docs.astral.sh/uv/concepts/workspaces) for scalable
   projects.
 - 💾 Disk-space efficient, with a [global cache](https://docs.astral.sh/uv/concepts/cache) for

crates/uv-cli/src/lib.rs

@@ -3562,7 +3562,7 @@ pub struct IndexArgs {
     /// indexes.
     ///
     /// If a path, the target must be a directory that contains packages as wheel files (`.whl`) or
-    /// source distributions (`.tar.gz` or `.zip`) at the top level.
+    /// source distributions (e.g., `.tar.gz` or `.zip`) at the top level.
     ///
     /// If a URL, the page must contain a flat list of links to package files adhering to the
     /// formats described above.

crates/uv-settings/src/settings.rs

@@ -318,7 +318,7 @@ pub struct ResolverInstallerOptions {
     /// indexes.
     ///
     /// If a path, the target must be a directory that contains packages as wheel files (`.whl`) or
-    /// source distributions (`.tar.gz` or `.zip`) at the top level.
+    /// source distributions (e.g., `.tar.gz` or `.zip`) at the top level.
     ///
     /// If a URL, the page must contain a flat list of links to package files adhering to the
     /// formats described above.
@@ -705,7 +705,7 @@ pub struct PipOptions {
     /// indexes.
     ///
     /// If a path, the target must be a directory that contains packages as wheel files (`.whl`) or
-    /// source distributions (`.tar.gz` or `.zip`) at the top level.
+    /// source distributions (e.g., `.tar.gz` or `.zip`) at the top level.
     ///
     /// If a URL, the page must contain a flat list of links to package files adhering to the
     /// formats described above.

docs/concepts/dependencies.md

@@ -128,7 +128,8 @@ A `subdirectory` may be specified if the package isn't in the repository root.
 ### URL
 
 To add a URL source, provide a `https://` URL to either a wheel (ending in `.whl`) or a source
-distribution (ending in `.zip` or `.tar.gz`).
+distribution (typically ending in `.tar.gz` or `.zip`; see
+[here](../concepts/resolution.md#source-distribution) for all supported formats).
 
 For example:
 
@@ -149,13 +150,14 @@ httpx = { url = "https://files.pythonhosted.org/packages/5c/2d/3da5bdf4408b8b280
 ```
 
 URL dependencies can also be manually added or edited in the `pyproject.toml` with the
-`{ url = <url> }` syntax. A `subdirectory` may be specified if the if the source distribution isn't
-in the archive root.
+`{ url = <url> }` syntax. A `subdirectory` may be specified if the source distribution isn't in the
+archive root.
 
 ### Path
 
-To add a path source, provide the path of a wheel (ending in `.whl`), a source distribution (ending
-in `.zip` or `.tar.gz`), or a directory containing a `pyproject.toml`.
+To add a path source, provide the path of a wheel (ending in `.whl`), a source distribution
+(typically ending in `.tar.gz` or `.zip`; see [here](../concepts/resolution.md#source-distribution)
+for all supported formats), or a directory containing a `pyproject.toml`.
 
 For example:
 

docs/concepts/projects.md

@@ -560,9 +560,9 @@ To distribute your project to others (e.g., to upload it to an index like PyPI),
 build it into a distributable format.
 
 Python projects are typically distributed as both source distributions (sdists) and binary
-distributions (wheels). The former is a `.tar.gz` file containing the project's source code along
-with some additional metadata, while the latter is a `.whl` file containing pre-built artifacts that
-can be installed directly.
+distributions (wheels). The former is typically a `.tar.gz` or `.zip` file containing the project's
+source code along with some additional metadata, while the latter is a `.whl` file containing
+pre-built artifacts that can be installed directly.
 
 `uv build` can be used to build both source distributions and binary distributions for your project.
 By default, `uv build` will build the project in the current directory, and place the built

docs/concepts/resolution.md

@@ -296,6 +296,18 @@ To ensure reproducibility, messages for unsatisfiable resolutions will not menti
 distributions were excluded due to the `--exclude-newer` flag — newer distributions will be treated
 as if they do not exist.
 
+## Source distribution
+
+Most packages publish their source distributions as gzip tarball (`.tar.gz`) or zip (`.zip`)
+archives. While less common, other formats are also supported when reading and extracting source
+distributions:
+
+- bzip2 tarball (`.tar.bz2`)
+- gzip tarball (`.tar.gz`)
+- xz tarball (`.tar.xz`)
+- zip (`.zip`)
+- zstd tarball (`.tar.zst`)
+
 ## Learn more
 
 For more details about the internals of the resolver, see the

docs/reference/cli.md

@@ -136,7 +136,7 @@ uv run [OPTIONS] <COMMAND>
 <p>May also be set with the <code>UV_EXTRA_INDEX_URL</code> environment variable.</p>
 </dd><dt><code>--find-links</code>, <code>-f</code> <i>find-links</i></dt><dd><p>Locations to search for candidate distributions, in addition to those found in the registry indexes.</p>
 
-<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (<code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
+<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (e.g., <code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
 
 <p>If a URL, the page must contain a flat list of links to package files adhering to the formats described above.</p>
 
@@ -610,7 +610,7 @@ uv add [OPTIONS] <PACKAGES|--requirements <REQUIREMENTS>>
 <p>May also be set with the <code>UV_EXTRA_INDEX_URL</code> environment variable.</p>
 </dd><dt><code>--find-links</code>, <code>-f</code> <i>find-links</i></dt><dd><p>Locations to search for candidate distributions, in addition to those found in the registry indexes.</p>
 
-<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (<code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
+<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (e.g., <code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
 
 <p>If a URL, the page must contain a flat list of links to package files adhering to the formats described above.</p>
 
@@ -910,7 +910,7 @@ uv remove [OPTIONS] <PACKAGES>...
 <p>May also be set with the <code>UV_EXTRA_INDEX_URL</code> environment variable.</p>
 </dd><dt><code>--find-links</code>, <code>-f</code> <i>find-links</i></dt><dd><p>Locations to search for candidate distributions, in addition to those found in the registry indexes.</p>
 
-<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (<code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
+<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (e.g., <code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
 
 <p>If a URL, the page must contain a flat list of links to package files adhering to the formats described above.</p>
 
@@ -1198,7 +1198,7 @@ uv sync [OPTIONS]
 <p>May also be set with the <code>UV_EXTRA_INDEX_URL</code> environment variable.</p>
 </dd><dt><code>--find-links</code>, <code>-f</code> <i>find-links</i></dt><dd><p>Locations to search for candidate distributions, in addition to those found in the registry indexes.</p>
 
-<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (<code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
+<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (e.g., <code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
 
 <p>If a URL, the page must contain a flat list of links to package files adhering to the formats described above.</p>
 
@@ -1479,7 +1479,7 @@ uv lock [OPTIONS]
 <p>May also be set with the <code>UV_EXTRA_INDEX_URL</code> environment variable.</p>
 </dd><dt><code>--find-links</code>, <code>-f</code> <i>find-links</i></dt><dd><p>Locations to search for candidate distributions, in addition to those found in the registry indexes.</p>
 
-<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (<code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
+<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (e.g., <code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
 
 <p>If a URL, the page must contain a flat list of links to package files adhering to the formats described above.</p>
 
@@ -1742,7 +1742,7 @@ uv export [OPTIONS]
 <p>May also be set with the <code>UV_EXTRA_INDEX_URL</code> environment variable.</p>
 </dd><dt><code>--find-links</code>, <code>-f</code> <i>find-links</i></dt><dd><p>Locations to search for candidate distributions, in addition to those found in the registry indexes.</p>
 
-<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (<code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
+<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (e.g., <code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
 
 <p>If a URL, the page must contain a flat list of links to package files adhering to the formats described above.</p>
 
@@ -2028,7 +2028,7 @@ uv tree [OPTIONS]
 <p>May also be set with the <code>UV_EXTRA_INDEX_URL</code> environment variable.</p>
 </dd><dt><code>--find-links</code>, <code>-f</code> <i>find-links</i></dt><dd><p>Locations to search for candidate distributions, in addition to those found in the registry indexes.</p>
 
-<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (<code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
+<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (e.g., <code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
 
 <p>If a URL, the page must contain a flat list of links to package files adhering to the formats described above.</p>
 
@@ -2383,7 +2383,7 @@ uv tool run [OPTIONS] [COMMAND]
 <p>May also be set with the <code>UV_EXTRA_INDEX_URL</code> environment variable.</p>
 </dd><dt><code>--find-links</code>, <code>-f</code> <i>find-links</i></dt><dd><p>Locations to search for candidate distributions, in addition to those found in the registry indexes.</p>
 
-<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (<code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
+<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (e.g., <code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
 
 <p>If a URL, the page must contain a flat list of links to package files adhering to the formats described above.</p>
 
@@ -2651,7 +2651,7 @@ uv tool install [OPTIONS] <PACKAGE>
 <p>May also be set with the <code>UV_EXTRA_INDEX_URL</code> environment variable.</p>
 </dd><dt><code>--find-links</code>, <code>-f</code> <i>find-links</i></dt><dd><p>Locations to search for candidate distributions, in addition to those found in the registry indexes.</p>
 
-<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (<code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
+<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (e.g., <code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
 
 <p>If a URL, the page must contain a flat list of links to package files adhering to the formats described above.</p>
 
@@ -2919,7 +2919,7 @@ uv tool upgrade [OPTIONS] <NAME>...
 <p>May also be set with the <code>UV_EXTRA_INDEX_URL</code> environment variable.</p>
 </dd><dt><code>--find-links</code>, <code>-f</code> <i>find-links</i></dt><dd><p>Locations to search for candidate distributions, in addition to those found in the registry indexes.</p>
 
-<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (<code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
+<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (e.g., <code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
 
 <p>If a URL, the page must contain a flat list of links to package files adhering to the formats described above.</p>
 
@@ -4302,7 +4302,7 @@ uv pip compile [OPTIONS] <SRC_FILE>...
 <p>May also be set with the <code>UV_EXTRA_INDEX_URL</code> environment variable.</p>
 </dd><dt><code>--find-links</code>, <code>-f</code> <i>find-links</i></dt><dd><p>Locations to search for candidate distributions, in addition to those found in the registry indexes.</p>
 
-<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (<code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
+<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (e.g., <code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
 
 <p>If a URL, the page must contain a flat list of links to package files adhering to the formats described above.</p>
 
@@ -4674,7 +4674,7 @@ uv pip sync [OPTIONS] <SRC_FILE>...
 <p>May also be set with the <code>UV_EXTRA_INDEX_URL</code> environment variable.</p>
 </dd><dt><code>--find-links</code>, <code>-f</code> <i>find-links</i></dt><dd><p>Locations to search for candidate distributions, in addition to those found in the registry indexes.</p>
 
-<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (<code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
+<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (e.g., <code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
 
 <p>If a URL, the page must contain a flat list of links to package files adhering to the formats described above.</p>
 
@@ -5000,7 +5000,7 @@ uv pip install [OPTIONS] <PACKAGE|--requirement <REQUIREMENT>|--editable <EDITAB
 <p>May also be set with the <code>UV_EXTRA_INDEX_URL</code> environment variable.</p>
 </dd><dt><code>--find-links</code>, <code>-f</code> <i>find-links</i></dt><dd><p>Locations to search for candidate distributions, in addition to those found in the registry indexes.</p>
 
-<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (<code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
+<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (e.g., <code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
 
 <p>If a URL, the page must contain a flat list of links to package files adhering to the formats described above.</p>
 
@@ -6057,7 +6057,7 @@ uv venv [OPTIONS] [PATH]
 <p>May also be set with the <code>UV_EXTRA_INDEX_URL</code> environment variable.</p>
 </dd><dt><code>--find-links</code>, <code>-f</code> <i>find-links</i></dt><dd><p>Locations to search for candidate distributions, in addition to those found in the registry indexes.</p>
 
-<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (<code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
+<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (e.g., <code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
 
 <p>If a URL, the page must contain a flat list of links to package files adhering to the formats described above.</p>
 
@@ -6282,7 +6282,7 @@ uv build [OPTIONS] [SRC]
 <p>May also be set with the <code>UV_EXTRA_INDEX_URL</code> environment variable.</p>
 </dd><dt><code>--find-links</code>, <code>-f</code> <i>find-links</i></dt><dd><p>Locations to search for candidate distributions, in addition to those found in the registry indexes.</p>
 
-<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (<code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
+<p>If a path, the target must be a directory that contains packages as wheel files (<code>.whl</code>) or source distributions (e.g., <code>.tar.gz</code> or <code>.zip</code>) at the top level.</p>
 
 <p>If a URL, the page must contain a flat list of links to package files adhering to the formats described above.</p>
 

docs/reference/settings.md

@@ -370,7 +370,7 @@ Locations to search for candidate distributions, in addition to those found in t
 indexes.
 
 If a path, the target must be a directory that contains packages as wheel files (`.whl`) or
-source distributions (`.tar.gz` or `.zip`) at the top level.
+source distributions (e.g., `.tar.gz` or `.zip`) at the top level.
 
 If a URL, the page must contain a flat list of links to package files adhering to the
 formats described above.
@@ -1662,7 +1662,7 @@ Locations to search for candidate distributions, in addition to those found in t
 indexes.
 
 If a path, the target must be a directory that contains packages as wheel files (`.whl`) or
-source distributions (`.tar.gz` or `.zip`) at the top level.
+source distributions (e.g., `.tar.gz` or `.zip`) at the top level.
 
 If a URL, the page must contain a flat list of links to package files adhering to the
 formats described above.