## Summary
We currently maintain separate untar methods for sync and async, but we
only use the sync version when the user provides a local source
distribution. (Otherwise, we untar as we download the distribution.) In
my testing, this is actually slower anyway:
```
❯ python -m scripts.bench \
--uv-path ./target/release/main \
--uv-path ./target/release/uv \
./requirements.in --benchmark resolve-cold --min-runs 50
Benchmark 1: ./target/release/main (resolve-cold)
Time (mean ± σ): 835.2 ms ± 107.4 ms [User: 346.0 ms, System: 151.3 ms]
Range (min … max): 639.2 ms … 1051.0 ms 50 runs
Benchmark 2: ./target/release/uv (resolve-cold)
Time (mean ± σ): 750.7 ms ± 91.9 ms [User: 345.7 ms, System: 149.4 ms]
Range (min … max): 637.9 ms … 905.7 ms 50 runs
Summary
'./target/release/uv (resolve-cold)' ran
1.11 ± 0.20 times faster than './target/release/main (resolve-cold)'
```
A file in a zip can set arbitrary unix permissions, but we, like pip,
want to preserve only the executable bit and otherwise use the OS
defaults.
This should be faster for wheels with many files since we now avoid the
blocking fs call to set the permissions in most cases.
Fixes#1740.
## Summary#1562
It turns out that `hexdump` uses an invalid source distribution format
whereby the contents aren't nested in a top-level directory -- instead,
they're all just flattened at the top-level. In looking at pip's source
(https://github.com/pypa/pip/blob/51de88ca6459fdd5213f86a54b021a80884572f9/src/pip/_internal/utils/unpacking.py#L62),
it only strips the top-level directory if all entries have the same
directory prefix (i.e., if it's the only thing in the directory). This
PR accommodates these "invalid" distributions.
I can't find any history on this method in `pip`. It looks like it dates
back over 15 years ago, to before `pip` was even called `pip`.
Closes https://github.com/astral-sh/uv/issues/1376.
This PR improves the error message for the problem described in
https://github.com/astral-sh/uv/issues/1376. The original output
duplicates the actual error message and includes lots of noise
(`DirEntry { inner: DirEntry(...) }`).
```
$ uv pip install hexdump==3.3
error: Failed to download and build: hexdump==3.3
Caused by: Failed to extract source distribution: The top level of the archive must only contain a list directory, but it contains: [DirEntry { inner: DirEntry("/home/robin/.cache/uv/.tmpgSvTCk/__main__.py") }, DirEntry { inner: DirEntry("/home/robin/.cache/uv/.tmpgSvTCk/hexdump.py") }, DirEntry { inner: DirEntry("/home/robin/.cache/uv/.tmpgSvTCk/data") }, DirEntry { inner: DirEntry("/home/robin/.cache/uv/.tmpgSvTCk/PKG-INFO") }, DirEntry { inner: DirEntry("/home/robin/.cache/uv/.tmpgSvTCk/setup.py") }, DirEntry { inner: DirEntry("/home/robin/.cache/uv/.tmpgSvTCk/README.txt") }]
Caused by: The top level of the archive must only contain a list directory, but it contains: [DirEntry { inner: DirEntry("/home/robin/.cache/uv/.tmpgSvTCk/__main__.py") }, DirEntry { inner: DirEntry("/home/robin/.cache/uv/.tmpgSvTCk/hexdump.py") }, DirEntry { inner: DirEntry("/home/robin/.cache/uv/.tmpgSvTCk/data") }, DirEntry { inner: DirEntry("/home/robin/.cache/uv/.tmpgSvTCk/PKG-INFO") }, DirEntry { inner: DirEntry("/home/robin/.cache/uv/.tmpgSvTCk/setup.py") }, DirEntry { inner: DirEntry("/home/robin/.cache/uv/.tmpgSvTCk/README.txt") }]
```
This PR removes the duplication and `DirEntry` internals so that the
error message is easier to grasp:
```
$ uv pip install hexdump==3.3
error: Failed to download and build: hexdump==3.3
Caused by: Failed to extract source distribution
Caused by: The top level of the archive must only contain a list directory, but it contains: ["__main__.py", "hexdump.py", "data", "PKG-INFO", "setup.py", "README.txt"]
```
First, replace all usages in files in-place. I used my editor for this.
If someone wants to add a one-liner that'd be fun.
Then, update directory and file names:
```
# Run twice for nested directories
find . -type d -print0 | xargs -0 rename s/puffin/uv/g
find . -type d -print0 | xargs -0 rename s/puffin/uv/g
# Update files
find . -type f -print0 | xargs -0 rename s/puffin/uv/g
```
Then add all the files again
```
# Add all the files again
git add crates
git add python/uv
# This one needs a force-add
git add -f crates/uv-trampoline
```
DaniPopes