The semantics are a bit unintuitive because `--python-version` is a
preference when looking for a python version without a venv, but if we
don't find that exact version we'll take `python3` and patch the
markers. This will make more sense once we start provisioning python
builds.
We can now resolve black with both python 3.8 and 3.12, with or without
that python version being in scope. In the example below,
`PATH=$HOME/.cargo/bin:/usr/bin` removes the pyenv builds and leaves
only `python3`, which is python 3.11.
```console
$ RUST_LOG=puffin::commands=debug cargo run --bin puffin -q -- pip-compile -v scripts/benchmarks/requirements/black.in --python-version py38
0.004108s DEBUG puffin::commands::pip_compile Using Python 3.8 at /home/konsti/.local/bin/python3.8
Resolved 8 packages in 44ms
# This file was autogenerated by Puffin v0.0.1 via the following command:
# puffin pip-compile -v scripts/benchmarks/requirements/black.in --python-version py38
black==23.11.0
[...]
platformdirs==4.0.0
# via black
tomli==2.0.1
# via black
typing-extensions==4.8.0
# via black
$ PATH=$HOME/.cargo/bin:/usr/bin RUST_LOG=puffin::commands=debug cargo run --bin puffin -q -- pip-compile -v scripts/benchmarks/requirements/black.in --python-version py38
0.004315s DEBUG puffin::commands::pip_compile Using Python 3.11 at /usr/bin/python3
Resolved 8 packages in 43ms
# This file was autogenerated by Puffin v0.0.1 via the following command:
# puffin pip-compile -v scripts/benchmarks/requirements/black.in --python-version py38
black==23.11.0
[...]
platformdirs==4.0.0
# via black
tomli==2.0.1
# via black
typing-extensions==4.8.0
# via black
```
```console
$ RUST_LOG=puffin::commands=debug cargo run --bin puffin -q -- pip-compile -v scripts/benchmarks/requirements/black.in --python-version py312
0.004216s DEBUG puffin::commands::pip_compile Using Python 3.12 at /home/konsti/.local/bin/python3.12
Resolved 6 packages in 37ms
# This file was autogenerated by Puffin v0.0.1 via the following command:
# puffin pip-compile -v scripts/benchmarks/requirements/black.in --python-version py312
black==23.11.0
[...]
platformdirs==4.0.0
# via black
$ PATH=$HOME/.cargo/bin:/usr/bin RUST_LOG=puffin::commands=debug cargo run --bin puffin -q -- pip-compile -v scripts/benchmarks/requirements/black.in --python-version py312
0.004190s DEBUG puffin::commands::pip_compile Using Python 3.11 at /usr/bin/python3
Resolved 6 packages in 39ms
# This file was autogenerated by Puffin v0.0.1 via the following command:
# puffin pip-compile -v scripts/benchmarks/requirements/black.in --python-version py312
black==23.11.0
[...]
platformdirs==4.0.0
# via black
```
Fixes#235.
Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>
One of the most common ways source dists fail to build (on linux) is
when the linker fails because the shared library of a native dependency
is not installed. These errors are hard to understand when you're not a
c programmer:
```
In file included from /usr/include/python3.10/unicodeobject.h:1046,
from /usr/include/python3.10/Python.h:83,
from Modules/3.x/readline.c:8:
Modules/3.x/readline.c: In function ‘on_completion’:
/usr/include/python3.10/cpython/unicodeobject.h:744:29: warning: initialization discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
744 | #define _PyUnicode_AsString PyUnicode_AsUTF8
| ^~~~~~~~~~~~~~~~
Modules/3.x/readline.c:842:23: note: in expansion of macro ‘_PyUnicode_AsString’
842 | char *s = _PyUnicode_AsString(r);
| ^~~~~~~~~~~~~~~~~~~
Modules/3.x/readline.c: In function ‘readline_until_enter_or_signal’:
Modules/3.x/readline.c:1044:9: warning: ‘sigrelse’ is deprecated: Use the sigprocmask function instead [-Wdeprecated-declarations]
1044 | sigrelse(SIGINT);
| ^~~~~~~~
In file included from Modules/3.x/readline.c:10:
/usr/include/signal.h:359:12: note: declared here
359 | extern int sigrelse (int __sig) __THROW
| ^~~~~~~~
Modules/3.x/readline.c: In function ‘PyInit_readline’:
Modules/3.x/readline.c:1179:34: warning: assignment to ‘char * (*)(FILE *, FILE *, const char *)’ from incompatible pointer type ‘char * (*)(FILE *, FILE *, char *)’ [-Wincompatible-pointer-types]
1179 | PyOS_ReadlineFunctionPointer = call_readline;
| ^
In file included from /usr/include/string.h:535,
from /usr/include/python3.10/Python.h:30,
from Modules/3.x/readline.c:8:
In function ‘strncpy’,
inlined from ‘call_readline’ at Modules/3.x/readline.c:1124:9:
/usr/include/x86_64-linux-gnu/bits/string_fortified.h:95:10: warning: ‘__builtin_strncpy’ output truncated before terminating nul copying as many bytes from a string as its length [-Wstringop-truncation]
95 | return __builtin___strncpy_chk (__dest, __src, __len,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
96 | __glibc_objsize (__dest));
| ~~~~~~~~~~~~~~~~~~~~~~~~~
Modules/3.x/readline.c: In function ‘call_readline’:
Modules/3.x/readline.c:1099:9: note: length computed here
1099 | n = strlen(p);
| ^~~~~~~~~
/usr/bin/ld: cannot find -lncurses: No such file or directory
collect2: error: ld returned 1 exit status
error: command '/usr/bin/x86_64-linux-gnu-gcc' failed with exit code 1
---
```
We parse these errors out, tell the user about the missing shared
library and even the most likely debian/ubuntu package name:
```
This error likely indicates that you need to install the library that provides a shared library for ncurses for pygraphviz-1.11 (e.g. libncurses-dev)
```
Previously, we just pulled the latest commit from `main` on every
update. This causes problems when you do not intend to update the
scenarios as in #787.
This bumps to the latest `packse` commit without new scenarios.
Adds support for a `PUFFIN_NO_WRAP` environment variable which disables
line wrapping in `miette` output.
We set this variable in the scenario tests to improve the readability of
snapshots.
I contributed the ability to disable line wrapping upstream at
https://github.com/zkat/miette/pull/328
This PR does a bit of refactoring to the pep440 crate, and in
particular around the erorr types. This PR is meant to be a precursor
to another PR that does some surgery (both in parsing and in `Version`
representation) that benefits somewhat from this refactoring.
As usual, please review commit-by-commit.
This fixes a compilation error with tests on current `main`. I didn't
track down the exact provenance, but I'd guess it's the result of a
botched merge. (i.e., Two or more PRs that pass CI independently, but
when merged cause failures.)
I'm still confused about it, but this seems to do the right thing?
`HierarchicalLayer` internally has [`let ansi =
io::stderr().is_terminal();`](fcd9eed252/src/lib.rs (L74)),
so the logging itself is already correctly uncolored, but errors in the
log weren't.
Test command, ran with network deactivated:
```shell
RUST_LOG=debug cargo run --bin puffin -- pip-compile -v ./scripts/popular_packages/pypi_8k_downloads.txt 2> log.txt
```
**Before**
```
[1;31merror[0m: Request error: error sending request for url (https://pypi.org/simple/apache-airflow-providers-dbt-cloud/): error trying to connect: dns error: failed to lookup address information: Temporary failure in name resolution
[1;31mCaused by[0m: error sending request for url (https://pypi.org/simple/apache-airflow-providers-dbt-cloud/): error trying to connect: dns error: failed to lookup address information: Temporary failure in name resolution
[1;31mCaused by[0m: error trying to connect: dns error: failed to lookup address information: Temporary failure in name resolution
[1;31mCaused by[0m: dns error: failed to lookup address information: Temporary failure in name resolution
[1;31mCaused by[0m: failed to lookup address information: Temporary failure in name resolution
```
**After**
```
error: Request error: error sending request for url (https://pypi.org/simple/fissix/): error trying to connect: dns error: failed to lookup address information: Temporary failure in name resolution
Caused by: error sending request for url (https://pypi.org/simple/fissix/): error trying to connect: dns error: failed to lookup address information: Temporary failure in name resolution
Caused by: error trying to connect: dns error: failed to lookup address information: Temporary failure in name resolution
Caused by: dns error: failed to lookup address information: Temporary failure in name resolution
Caused by: failed to lookup address information: Temporary failure in name resolution
```
Fixup for
7349527ceadde8fc265a33e6a4e662/boto3-1.2.0-py2.py3-none-any.whl:
```
botocore>=1.3.0,<1.4.0',
```
Note that neither the quote nor the comma are right.
Following #757, improves the script for generating scenario test cases
with:
- A requirements file
- Support for downloading packse scenarios from GitHub dynamically
- Running rustfmt on the generated test file
- Updating snapshots / running tests
As mentioned in #746, instead of just installing the scenario root we
will unpack the root dependencies into the install command to allow
better coverage of direct user requests with scenarios.
I added display of the package tree provided by each scenario.
Use a mustache template for iterative replacements.
Adds tests using packse test scenarios! Uses `test.pypi.org` as a
backing index.
Tests are generated by a simple Python script. Requires
https://github.com/zanieb/packse/pull/49.
This opens us to a slight attack surface, as we cannot force use of
`test.pypi.org` only and someone could register these package names on
the real `pypi.org` index with malicious content. I could publish these
packages there too.
`simplify_set` can itself simplify to the full range, so it seems like
we should be checking if the set is `Range::full` _after_ simplifying
rather than before.
## Summary
This PR modifies the resolver to treat the Python version as a package,
which allows for better error messages (since we no longer treat
incompatible packages as if they "don't exist at all").
There are a few tricky pieces here...
First, we need to track both the interpreter's Python version and the
_target_ Python version, because we support resolving for other versions
via `--python 3.7`.
Second, we allow using incompatible wheels during resolution, as long as
there's a compatible source distribution. So we still need to test for
`requires-python` compatibility when selecting distributions.
This could use more testing, but it feels like an area where `packse`
would be more productive than writing PyPI tests.
Closes https://github.com/astral-sh/puffin/issues/406.
This PR fixes our prefetching logic to ensure that we always attempt to
prefetch the "best-guess" distribution for all dependencies. This logic
already existed, but because we only attempted to prefetch when package
metadata was available, it almost never triggered. Now, we wait for the
package metadata to become available, _then_ kick off the "best-guess"
prefetch (for every package).
In my testing, this dramatically improves performance (like 2x). I'm
wondering if this regressed at some point?
Closes#743.
Co-authored-by: konsti <konstin@mailbox.org>
I've tried to investigate puffin's performance wrt to builds and
parallelism in general, but found the previous instrumentation to
granular. I've tried to add spans to every function that either needs
noticeable io or cpu resources without creating duplication. This also
fixes some wrong tracing usage on async functions
(https://docs.rs/tracing/latest/tracing/struct.Span.html#in-asynchronous-code)
and some spans that weren't actually entered.
This PR adds a dedicated error message for resolutions that fail, but
might've succeeded if pre-releases were allowed. Specifically, if we see
a failed resolution, and failed to find a version for a package that
included a pre-release marker, we add a hint nudging the user to
explicitly enable all pre-releases.
We'd prefer a solution like
https://github.com/astral-sh/puffin/pull/666, but believe that it will
break some assumptions in PubGrub, so this is the lighter-weight
solution.
Closes https://github.com/astral-sh/puffin/issues/659.
The `async fn` and return-position `impl Trait` in traits improve
`BuildContext` ergonomics. The traits use `impl Future` over `async fn`
to make the send bound explicit
(https://blog.rust-lang.org/2023/12/21/async-fn-rpit-in-traits.html).
The remaining changes are due to clippy.
This PR combines three small changes to finish up the install-many
testing.
* Download pypi_10k_most_dependents.txt in script I'd like to have the
setup process of the large scale checks automated.
* Some install-many dev script improvements
* Fix mkl_fft-1.3.6-58-cp310-cp310-manylinux2014_x86_64.whl:
mkl_fft-1.3.6-58-cp310-cp310-manylinux2014_x86_64.whl has multiple
Wheel-Version entries, we have to ignore that like pip
Apart from the mkl-fft fix the only other errors i've seen showing up
are
https://github.com/astral-sh/puffin/issues/520#issuecomment-1869625642.
## Summary
This PR adds support for relative URLs in the simple JSON responses. We
already support relative URLs for HTML responses, but the handling has
been consolidated between the two. Similar to index URLs, we now store
the base alongside the metadata, and use the base when resolving the
URL.
Closes#455.
## Test Plan
`cargo test` (to test HTML indexes). Separately, I also ran `cargo run
-p puffin-cli -- pip-compile requirements.in -n
--index-url=http://localhost:3141/packages/pypi/+simple` on the
`zb/relative` branch with `packse` running, and forced both HTML and
JSON by limiting the `accept` header.
## Summary
This PR makes the `pypi_types::File` a response-only type (i.e., a type
that's only used when deserializing over the wire), and adds a separate
internal `File` type. Right now, the representations are similar, but
already, we can avoid the "lenient" deserialization on our internal
`File` type, and avoid the special-casing of the property names that's
required in the JSON. Over time, we can evolve this representation
entirely separately from the representation we receive from PyPI and
other indexes.
This crate started off as generic caching utilities, but we started
adding a lot of Puffin-specific stuff (like the cache buckets
abstraction that knows about Git vs. direct URL vs. indexes and so on).
This PR moves the generic stuff into a new `cache-key` crate.
I don't have a good testing strategy here (I'm manually testing against
`devpi` via `packse`), but the HTML index uses (e.g.)
`data-requires-python=">=3.8"`, so we need to decode.
From manual inspection, this dataset generated through the [libraries.io
API](https://libraries.io/api#project-search) seems more mainstream than
the current 8k one, which is also preserved. I've added the dataset to
the repo because the API requires an API key.
We lock git checkout directories and the virtualenv to avoid two puffin
instances running in parallel changing files at the same time and
leading to a broken state. When one instance is blocking another, we
need to inform the user (why is the program hanging?) and also add some
information for them to debug the situation.
The new messages will print
```
Waiting to acquire lock for /home/konsti/projects/puffin/.venv (lockfile: /home/konsti/projects/puffin/.venv/.lock)
```
or
```
Waiting to acquire lock for git+https://github.com/pydantic/pydantic-extra-types@0ce9f207a1e09a862287ab77512f0060c1625223 (lockfile: /home/konsti/projects/puffin/cache-all-kinds/git-v0/locks/f157fd329a506a34)
```
The messages aren't perfect but clear enough to see what the contention
is and in the worst case to delete the lockfile.
Fixes#714
Easier than i expected: We simply never construct the pubgrub error
variants since we have our own main loop. The `unreachable!()`s can be
removed when never is stabilized
Otherwise, when a server does not support HTTP range requests we throw
an error instead of downloading without range requests.
---------
Co-authored-by: konstin <konstin@mailbox.org>
This allows the default index URL to be easily overridden with a local
index e.g. a `packse` server
```
export PUFFIN_INDEX_URL="http://localhost:3141/packages/all/+simple"
```
For the install tests, i need the ability to ignore failures in the
`DistFinder`. To avoid just copy&pasting a version that collects errors
separately, i followed
https://gendignoux.com/blog/2021/04/01/rust-async-streams-futures-part1.html
and switched the custom channel over to an async stream yielding
`Result` items.
I like the async streams mirror the normal iterator api.
The high level goal here is to improve the tests for the version parser.
Namely, we now check not just that version strings parse successfully,
but that they parse to the expected result.
We also do a few other cleanups. Most notably, `Version` is now an
opaque type so that we can more easily change its representation going
forward.
Reviewing commit-by-commit is suggested. :-)
The test creates a cache from multiple sources and injects faults (once
using invalid data and once by making the files unreadable on the fs
level), then resolves again.
I didn't test git because it has its own locking and correctness logic.
The main drawback is that this test is slow (2.5s for me), we could
`#[ignore]` it.
This is a pure refactor to follow-up #690, to separate the metadata that
we know upfront about distributions (like the version, for
registry-based distributions) vs. the metadata that requires building
(like the version, for URL-based distributions).
We now show the fully-resolved URL, rather than the URL as given by the
user, _everywhere_ except for the output resolution file (which should
retain relative paths, unexpanded environment variables, etc.).
Closes https://github.com/astral-sh/puffin/issues/687.
With `Option<T>` and `.unwrap_or_default()` later, the default of `T`
isn't shown in the help output.
Old:
```
--link-mode <LINK_MODE>
The method to use when installing packages from the global cache
Possible values:
- clone: Clone (i.e., copy-on-write) packages from the wheel into the site packages
- copy: Copy packages from the wheel into the site packages
- hardlink: Hard link packages from the wheel into the site packages
-q, --quiet
Do not print any output
--resolution <RESOLUTION>
Possible values:
- highest: Resolve the highest compatible version of each package
- lowest: Resolve the lowest compatible version of each package
- lowest-direct: Resolve the lowest compatible version of any direct dependencies, and the highest compatible version of any transitive dependencies
--prerelease <PRERELEASE>
Possible values:
- disallow: Disallow all pre-release versions
- allow: Allow all pre-release versions
- if-necessary: Allow pre-release versions if all versions of a package are pre-release
- explicit: Allow pre-release versions for first-party packages with explicit pre-release markers in their version requirements
- if-necessary-or-explicit: Allow pre-release versions if all versions of a package are pre-release, or if the package has an explicit pre-release marker in its version requirements
```

New:
```
--link-mode <LINK_MODE>
The method to use when installing packages from the global cache
[default: hardlink]
Possible values:
- clone: Clone (i.e., copy-on-write) packages from the wheel into the site packages
- copy: Copy packages from the wheel into the site packages
- hardlink: Hard link packages from the wheel into the site packages
-q, --quiet
Do not print any output
--resolution <RESOLUTION>
[default: highest]
Possible values:
- highest: Resolve the highest compatible version of each package
- lowest: Resolve the lowest compatible version of each package
- lowest-direct: Resolve the lowest compatible version of any direct dependencies, and the highest compatible version of any transitive dependencies
--prerelease <PRERELEASE>
[default: if-necessary-or-explicit]
Possible values:
- disallow: Disallow all pre-release versions
- allow: Allow all pre-release versions
- if-necessary: Allow pre-release versions if all versions of a package are pre-release
- explicit: Allow pre-release versions for first-party packages with explicit pre-release markers in their version requirements
- if-necessary-or-explicit: Allow pre-release versions if all versions of a package are pre-release, or if the package has an explicit pre-release marker in its version requirements
```

This PR uses borrowed data in `BuildDispatch` which makes creating a
`BuildDispatch` extremely cheap (only one allocation, for the Python
executable). I can be talked out of this, it will have no measurable
impact.
Separate branch for rebasing #677 onto main because i don't trust the
rebase enough to force push.
Closes#677.
---
If you install `black` from PyPI, then `-e ../black`, we need to
uninstall the existing `black`. This sounds simple, but that in turn
requires that we _know_ `-e ../black` maps to the package `black`, so
that we can mark it for uninstallation in the install plan. This, in
turn, means that we need to build editable dependencies prior to the
install plan.
This is just a bunch of reorganization to fix that specific bug
(installing multiple versions of `black` if you run through the above
workflow): we now run through the list of editables upfront, mark those
that are already installed, build those that aren't, and then ensure
that `InstallPlan` correctly removes those that need to be removed, etc.
Closes#676.
Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>
Per the title: adds support for `-e` installs to `puffin pip-install`.
There were some challenges here around threading the editable installs
to the right places. Namely, we want to build _once_, then reuse the
editable installs from the resolution. At present, we were losing the
`editable: true` flag on the `Dist` that came back through the
resolution, so it required some changes to the resolver.
Closes https://github.com/astral-sh/puffin/issues/672.
This PR modifies `SitePackages` to store all distributions in a flat
vector, and maintain two indexes (hash maps) from "per-element data for
an element in the vector" to "index of that element". This enables us to
maintain a map on both package name and editable URL.
`pip` supports installing packages without names (e.g.,
`git+https://github.com/pallets/flask.git`), but it doesn't adhere to
the PEP grammar, and we don't yet support it (and may never) (#313).
This PR adds a dedicated error path for such cases, to ensure that we
can give meaningful feedback to the user:
```
error: Couldn't parse requirement in requirements.in position 0 to 18
Caused by: URL requirement is missing a package name; expected: `package_name @ https://google.com`
https://google.com
^^^^^^^^^^^^^^^^^^
```
Closes https://github.com/astral-sh/puffin/issues/650.
This gives a 1.23 speedup on transformers-extras. We could change to
msgpack for the entire cache if we want. I only tried this format and
postcard so far, where postcard was much slower (like 1.6s).
I don't actually want to merge it like this, i wanted to figure out the
ballpark of improvement for switching away from json.
```
hyperfine --warmup 3 --runs 10 "target/profiling/puffin pip-compile --cache-dir cache-msgpack scripts/requirements/transformers-extras.in" "target/profiling/branch pip-compile scripts/requirements/transformers-extras.in"
Benchmark 1: target/profiling/puffin pip-compile --cache-dir cache-msgpack scripts/requirements/transformers-extras.in
Time (mean ± σ): 179.1 ms ± 4.8 ms [User: 157.5 ms, System: 48.1 ms]
Range (min … max): 174.9 ms … 188.1 ms 10 runs
Benchmark 2: target/profiling/branch pip-compile scripts/requirements/transformers-extras.in
Time (mean ± σ): 221.1 ms ± 6.7 ms [User: 208.1 ms, System: 46.5 ms]
Range (min … max): 213.5 ms … 235.5 ms 10 runs
Summary
target/profiling/puffin pip-compile --cache-dir cache-msgpack scripts/requirements/transformers-extras.in ran
1.23 ± 0.05 times faster than target/profiling/branch pip-compile scripts/requirements/transformers-extras.in
```
Disadvantage: We can't manually look into the cache anymore to debug
things
- [ ] Check more formats, i currently only tested json, msgpack and
postcard, there should be other formats, too
- [x] Switch over `CachedByTimestamp` serialization (for the interpreter
caching)
- [x] Switch over error handling and make sure puffin is still resilient
to cache failure
This enables us to remove a number of allocations (in particular,
`peek_while` and `take_while` no longer allocate). It also makes it
trivial to move the cursor to a new location, since you can just slice
and call `.chars()`. At present, moving to a new location would require
converting the iterator to a string, then back to a character iterator.
Two low-hanging fruits as optimizations for version parsing: A fast path
for release only versions and removing the regex from version specifiers
(still calling into version's parsing regex if required). This enables
optimizing the serde format since we now see the serde part instead of
only PEP 440 parsing. I intentionally didn't rewrite the full PEP 440 at
this step.
```console
$ hyperfine --warmup 5 --runs 50 "target/profiling/puffin pip-compile scripts/requirements/transformers-extras.in" "target/profiling/main pip-compile scripts/requirements/transformers-extras.in"
Benchmark 1: target/profiling/puffin pip-compile scripts/requirements/transformers-extras.in
Time (mean ± σ): 217.1 ms ± 3.2 ms [User: 194.0 ms, System: 55.1 ms]
Range (min … max): 211.0 ms … 228.1 ms 50 runs
Benchmark 2: target/profiling/main pip-compile scripts/requirements/transformers-extras.in
Time (mean ± σ): 276.7 ms ± 5.7 ms [User: 252.4 ms, System: 54.6 ms]
Range (min … max): 268.9 ms … 303.5 ms 50 runs
Summary
target/profiling/puffin pip-compile scripts/requirements/transformers-extras.in ran
1.27 ± 0.03 times faster than target/profiling/main pip-compile scripts/requirements/transformers-extras.in
```
---------
Co-authored-by: Andrew Gallant <andrew@astral.sh>
## Summary
This PR ensures that we re-use the resolution to install the build
dependencies when building a source distribution. Currently, we only
pass along the list of requirements, and then use the `Finder` to map
each requirement to a distribution. But we already determine the correct
distribution when resolving!
Closes https://github.com/astral-sh/puffin/issues/655.
## Summary
This is more of a hypothetical problem, but the cache manifest could in
theory get out-of-sync with the contents on disk. This PR modifies the
`BuiltWheelMetadata` lookup to warn (but not fail) if the manifest
includes a wheel that no longer exists on disk. You can mimic this by
removing a wheel from the `built-wheels-v0` cache without modifying the
manifest correspondingly.
## Summary
This PR modifies `source_dist.rs` to store source distributions (from
remote URLs) in the cache. The cache structure for registries now looks
like:
<img width="1053" alt="Screen Shot 2023-12-14 at 10 43 43 PM"
src="https://github.com/astral-sh/puffin/assets/1309177/3c2dbf6b-5926-41f2-b69b-74031741aba8">
(I will update the docs prior to merging, if approved.)
The benefit here is that we can reuse the source distribution (avoid
download + unzipping it) if we need to build multiple wheels. In the
future, it will be even more relevant, since we'll need to reuse the
source distribution to support
https://github.com/astral-sh/puffin/issues/599.
I also included some misc. refactors to DRY up repeated operations and
add some more abstraction to `source_dist.rs`.