Let me know if I should add these to the `Cargo.toml`.
All `cargo test` tests pass on the latest x86_64-unknown-linux-gnu
nightly.
---------
Co-authored-by: Alejandro González <me@alegon.dev>
Bumps the rust-dependencies group with 1 update:
[image](https://github.com/image-rs/image).
Updates `image` from 0.25.8 to 0.25.9
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/image-rs/image/blob/main/CHANGES.md">image's
changelog</a>.</em></p>
<blockquote>
<h3>Version 0.25.9</h3>
<p>Features:</p>
<ul>
<li>Support extracting XMP metadata from PNG, JPEG, GIF, WebP and TIFF
files (<a
href="https://redirect.github.com/image-rs/image/issues/2567">#2567</a>,
<a
href="https://redirect.github.com/image-rs/image/issues/2634">#2634</a>,
<a
href="https://redirect.github.com/image-rs/image/issues/2644">#2644</a>)</li>
<li>Support reading IPTC metadata from PNG and JPG files (<a
href="https://redirect.github.com/image-rs/image/issues/2611">#2611</a>)</li>
<li>Support reading ICC profile from GIF files (<a
href="https://redirect.github.com/image-rs/image/issues/2644">#2644</a>)</li>
<li>Allow setting a specific DEFLATE compression level when writing PNG
(<a
href="https://redirect.github.com/image-rs/image/issues/2583">#2583</a>)</li>
<li>Initial support for 16-bit CMYK TIFF files (<a
href="https://redirect.github.com/image-rs/image/issues/2588">#2588</a>)</li>
<li>Allow extracting the alpha channel of a <code>Pixel</code> in a
generic way (<a
href="https://redirect.github.com/image-rs/image/issues/2638">#2638</a>)</li>
</ul>
<p>Structural changes:</p>
<ul>
<li>EXR format decoding now only uses multi-threading via Rayon when the
<code>rayon</code> feature is enabled (<a
href="https://redirect.github.com/image-rs/image/issues/2643">#2643</a>)</li>
<li>Upgraded zune-jpeg to 0.5.x, ravif to 0.12.x, gif to 0.14.x</li>
<li>pnm: parse integers in PBM/PGM/PPM headers without allocations (<a
href="https://redirect.github.com/image-rs/image/issues/2620">#2620</a>)</li>
<li>Replace <code>doc_auto_cfg</code> with <code>doc_cfg</code> (<a
href="https://redirect.github.com/image-rs/image/issues/2637">#2637</a>)</li>
</ul>
<p>Bug fixes:</p>
<ul>
<li>Do not encode empty JPEG images (<a
href="https://redirect.github.com/image-rs/image/issues/2624">#2624</a>)</li>
<li>tga: reject empty images (<a
href="https://redirect.github.com/image-rs/image/issues/2614">#2614</a>)</li>
<li>tga: fix orientation flip for color mapped images (<a
href="https://redirect.github.com/image-rs/image/issues/2607">#2607</a>)</li>
<li>tga: adjust colormap lookup to match tga 2.0 spec (<a
href="https://redirect.github.com/image-rs/image/issues/2608">#2608</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="5ceb6af6c2"><code>5ceb6af</code></a>
Merge pull request <a
href="https://redirect.github.com/image-rs/image/issues/2640">#2640</a>
from Shnatsel/release-v0.25.9</li>
<li><a
href="282d7b345c"><code>282d7b3</code></a>
Merge pull request <a
href="https://redirect.github.com/image-rs/image/issues/2646">#2646</a>
from oligamiq/main</li>
<li><a
href="5412aeee5a"><code>5412aee</code></a>
Amend the note in accordance with the advice of 197g.</li>
<li><a
href="4e8a4ed2e8"><code>4e8a4ed</code></a>
Clarify default features in README and add usage note</li>
<li><a
href="ca8fa528ff"><code>ca8fa52</code></a>
Merge pull request <a
href="https://redirect.github.com/image-rs/image/issues/2644">#2644</a>
from image-rs/gif-0.14</li>
<li><a
href="d9bc8fe790"><code>d9bc8fe</code></a>
mention GIF 0.14 changes</li>
<li><a
href="053220a0b1"><code>053220a</code></a>
Provide gif's XMP and ICC metadata</li>
<li><a
href="2ec20b3b3b"><code>2ec20b3</code></a>
Prepare codec with gif@0.14</li>
<li><a
href="31939facce"><code>31939fa</code></a>
Mention EXR rayon change</li>
<li><a
href="c7f68be265"><code>c7f68be</code></a>
Merge pull request <a
href="https://redirect.github.com/image-rs/image/issues/2643">#2643</a>
from Shnatsel/really-optional-rayon</li>
<li>Additional commits viewable in <a
href="https://github.com/image-rs/image/compare/v0.25.8...v0.25.9">compare
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Bumps the rust-dependencies group with 4 updates in the / directory:
[zopfli](https://github.com/zopfli-rs/zopfli),
[indexmap](https://github.com/indexmap-rs/indexmap),
[libdeflater](https://github.com/libdeflater/libdeflater) and
[clap](https://github.com/clap-rs/clap).
Updates `zopfli` from 0.8.2 to 0.8.3
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/zopfli-rs/zopfli/releases">zopfli's
releases</a>.</em></p>
<blockquote>
<h2>v0.8.3</h2>
<h2>What's Changed</h2>
<ul>
<li>Add DeflateEncoder::get_ref/get_mut by <a
href="https://github.com/roblabla"><code>@roblabla</code></a> in <a
href="https://redirect.github.com/zopfli-rs/zopfli/pull/69">zopfli-rs/zopfli#69</a>.</li>
<li>Updated dependencies.</li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/roblabla"><code>@roblabla</code></a>
made their first contribution in <a
href="https://redirect.github.com/zopfli-rs/zopfli/pull/69">zopfli-rs/zopfli#69</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/zopfli-rs/zopfli/compare/v0.8.2...v0.8.3">https://github.com/zopfli-rs/zopfli/compare/v0.8.2...v0.8.3</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="91a34e5d2c"><code>91a34e5</code></a>
Bump Zopfli version to 0.8.3 🎉</li>
<li><a
href="684d9da6bd"><code>684d9da</code></a>
docs: better describe what the nightly feature does</li>
<li><a
href="5b539d0df1"><code>5b539d0</code></a>
chore: update dependencies</li>
<li><a
href="8106f7e415"><code>8106f7e</code></a>
Add DeflateEncoder::get_ref/get_mut (<a
href="https://redirect.github.com/zopfli-rs/zopfli/issues/69">#69</a>)</li>
<li><a
href="c6c7a42fc3"><code>c6c7a42</code></a>
chore(deps): update actions/checkout action to v5 (<a
href="https://redirect.github.com/zopfli-rs/zopfli/issues/68">#68</a>)</li>
<li><a
href="0b5a4c92de"><code>0b5a4c9</code></a>
chore: remove dependency on removed nightly feature</li>
<li><a
href="aacd1aabf8"><code>aacd1aa</code></a>
chore: fix new Clippy lint</li>
<li><a
href="1652084abb"><code>1652084</code></a>
chore: update dependencies</li>
<li><a
href="b8d149ab75"><code>b8d149a</code></a>
ci: drop usage of <code>cargo nono</code></li>
<li><a
href="812da6d545"><code>812da6d</code></a>
chore(deps): update rust crate proptest-derive to 0.6.0 (<a
href="https://redirect.github.com/zopfli-rs/zopfli/issues/66">#66</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/zopfli-rs/zopfli/compare/v0.8.2...v0.8.3">compare
view</a></li>
</ul>
</details>
<br />
Updates `indexmap` from 2.11.4 to 2.12.0
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/indexmap-rs/indexmap/blob/main/RELEASES.md">indexmap's
changelog</a>.</em></p>
<blockquote>
<h2>2.12.0 (2025-10-17)</h2>
<ul>
<li><strong>MSRV</strong>: Rust 1.82.0 or later is now required.</li>
<li>Updated the <code>hashbrown</code> dependency to 0.16 alone.</li>
<li>Error types now implement <code>core::error::Error</code>.</li>
<li>Added <code>pop_if</code> methods to <code>IndexMap</code> and
<code>IndexSet</code>, similar to the
method for <code>Vec</code> added in Rust 1.86.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="0e68f8a360"><code>0e68f8a</code></a>
Merge pull request <a
href="https://redirect.github.com/indexmap-rs/indexmap/issues/422">#422</a>
from cuviper/msrv-1.82</li>
<li><a
href="61c9c94672"><code>61c9c94</code></a>
ci: only run full miri in the merge queue</li>
<li><a
href="db43f1945a"><code>db43f19</code></a>
Release 2.12.0</li>
<li><a
href="b46a32a585"><code>b46a32a</code></a>
Move more to the lints table</li>
<li><a
href="4849b1679f"><code>4849b16</code></a>
Make use of RFC2145 type privacy for sealed traits</li>
<li><a
href="cfff4b7d03"><code>cfff4b7</code></a>
Use bounds in associated type position</li>
<li><a
href="c7178d73c4"><code>c7178d7</code></a>
Use <code>core::error::Error</code></li>
<li><a
href="76b459b82c"><code>76b459b</code></a>
Use more precise capturing for some <code>impl Trait</code></li>
<li><a
href="b3d9cc355e"><code>b3d9cc3</code></a>
Use the primitive slice's <code>is_sorted</code> methods</li>
<li><a
href="09db3cce19"><code>09db3cc</code></a>
Use inherent <code>usize::div_ceil</code></li>
<li>Additional commits viewable in <a
href="https://github.com/indexmap-rs/indexmap/compare/2.11.4...2.12.0">compare
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</ul>
</details>
<br />
Updates `libdeflater` from 1.24.0 to 1.25.0
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/libdeflater/libdeflater/blob/master/CHANGELOG.md">libdeflater's
changelog</a>.</em></p>
<blockquote>
<h2>[1.25.0]</h2>
<ul>
<li>Updated libdeflate to v1.25 (<a
href="https://redirect.github.com/libdeflater/libdeflater/issues/50">#50</a>,
thanks <a
href="https://github.com/musicinmybrain"><code>@musicinmybrain</code></a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="2acaaa9afa"><code>2acaaa9</code></a>
Link v1.25.0 to <a
href="https://redirect.github.com/libdeflater/libdeflater/issues/50">#50</a>,
credit <a
href="https://github.com/musicinmybrain"><code>@musicinmybrain</code></a></li>
<li><a
href="429baa4557"><code>429baa4</code></a>
Merge pull request <a
href="https://redirect.github.com/libdeflater/libdeflater/issues/50">#50</a>
from musicinmybrain/v1.25.0</li>
<li><a
href="96156b7cd4"><code>96156b7</code></a>
Fix unnecessary parentheses that produced a warning</li>
<li><a
href="36e84d153a"><code>36e84d1</code></a>
Update libdeflate to v1.25</li>
<li><a
href="0dccb7831c"><code>0dccb78</code></a>
Replace mentions of adamkewley/lideflater with libdeflater/libdeflater
(<a
href="https://redirect.github.com/libdeflater/libdeflater/issues/48">#48</a>)</li>
<li>See full diff in <a
href="https://github.com/libdeflater/libdeflater/compare/1.24.0...1.25.0">compare
view</a></li>
</ul>
</details>
<br />
Updates `clap` from 4.5.48 to 4.5.51
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/clap-rs/clap/releases">clap's
releases</a>.</em></p>
<blockquote>
<h2>v4.5.51</h2>
<h2>[4.5.51] - 2025-10-29</h2>
<h3>Fixes</h3>
<ul>
<li><em>(help)</em> Correctly calculate padding for short flags that
take a value</li>
<li><em>(help)</em> Don't panic on short flags using
<code>ArgAction::Count</code></li>
</ul>
<h2>v4.5.50</h2>
<h2>[4.5.50] - 2025-10-20</h2>
<h3>Features</h3>
<ul>
<li>Accept <code>Cow</code> where <code>String</code> and
<code>&str</code> are accepted</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/clap-rs/clap/blob/master/CHANGELOG.md">clap's
changelog</a>.</em></p>
<blockquote>
<h2>[4.5.51] - 2025-10-29</h2>
<h3>Fixes</h3>
<ul>
<li><em>(help)</em> Correctly calculate padding for short flags that
take a value</li>
<li><em>(help)</em> Don't panic on short flags using
<code>ArgAction::Count</code></li>
</ul>
<h2>[4.5.50] - 2025-10-20</h2>
<h3>Features</h3>
<ul>
<li>Accept <code>Cow</code> where <code>String</code> and
<code>&str</code> are accepted</li>
</ul>
<h2>[4.5.49] - 2025-10-13</h2>
<h3>Fixes</h3>
<ul>
<li><em>(help)</em> Correctly wrap when ANSI escape codes are
present</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="b49dae25ec"><code>b49dae2</code></a>
chore: Release</li>
<li><a
href="d37b0b57ab"><code>d37b0b5</code></a>
docs: Update changelog</li>
<li><a
href="3398b6ab10"><code>3398b6a</code></a>
Merge pull request <a
href="https://redirect.github.com/clap-rs/clap/issues/6009">#6009</a>
from gtema/complete_try_generate</li>
<li><a
href="21fc9e46d4"><code>21fc9e4</code></a>
feat(clap-complete): Introduce fallible generator</li>
<li><a
href="bd01bdc0ff"><code>bd01bdc</code></a>
Merge pull request <a
href="https://redirect.github.com/clap-rs/clap/issues/6012">#6012</a>
from epage/sub</li>
<li><a
href="ed0c63deba"><code>ed0c63d</code></a>
docs(derive): Specify arg_required_else_help is set for users</li>
<li><a
href="e2188d9af3"><code>e2188d9</code></a>
chore(deps): Update Rust Stable to v1.87 (<a
href="https://redirect.github.com/clap-rs/clap/issues/6004">#6004</a>)</li>
<li><a
href="e01f2b7640"><code>e01f2b7</code></a>
docs: Cleanup unused links</li>
<li><a
href="6b12a81baf"><code>6b12a81</code></a>
chore: Release</li>
<li><a
href="8dd92a792d"><code>8dd92a7</code></a>
docs: Update changelog</li>
<li>Additional commits viewable in <a
href="https://github.com/clap-rs/clap/compare/clap_complete-v4.5.48...clap_complete-v4.5.51">compare
view</a></li>
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Adds an option to skip files when the uncompressed IDAT (or the file
size itself) exceeds a certain size. This provides an effective way to
limit resource usage in constrained environments.
Closes#411.
#719 is failing tests due to requiring a newer version of rust than we
currently specify. This PR updates to 1.85.1 and sets the edition to
2024.
I've also updated dependencies and runner images, using the ubuntu arm
runner which removes the need for qemu and other hacks.
Closes#719.
Bumps the rust-dependencies group with 1 update:
[rgb](https://github.com/kornelski/rust-rgb).
Updates `rgb` from 0.8.50 to 0.8.51
<details>
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Bumps the rust-dependencies group with 1 update:
[indexmap](https://github.com/indexmap-rs/indexmap).
Updates `indexmap` from 2.9.0 to 2.10.0
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/indexmap-rs/indexmap/blob/main/RELEASES.md">indexmap's
changelog</a>.</em></p>
<blockquote>
<h2>2.10.0 (2025-06-26)</h2>
<ul>
<li>Added <code>extract_if</code> methods to <code>IndexMap</code> and
<code>IndexSet</code>, similar to the
methods for <code>HashMap</code> and <code>HashSet</code> with ranges
like <code>Vec::extract_if</code>.</li>
<li>Added more <code>#[track_caller]</code> annotations to functions
that may panic.</li>
</ul>
</blockquote>
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href="eaaaa56e71"><code>eaaaa56</code></a>
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href="b19d84edaf"><code>b19d84e</code></a>
Fix <code>clippy::needless_lifetimes</code></li>
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href="4f62778c86"><code>4f62778</code></a>
<code>impl FusedIterator for ExtractIf</code></li>
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href="e09eaaf8e5"><code>e09eaaf</code></a>
Document and track <code>extract_if</code> panics</li>
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Add range support to <code>extract_if</code></li>
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Bumps the rust-dependencies group with 1 update:
[clap](https://github.com/clap-rs/clap).
Updates `clap` from 4.5.39 to 4.5.40
<details>
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<blockquote>
<h2>[4.5.40] - 2025-06-09</h2>
<h3>Features</h3>
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<li>Support quoted ids in <code>arg!()</code> macro (e.g.
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This need was raised in https://bugs.gentoo.org/944285. Can be enabled
with `--features system-libdeflate` to use the libdeflate located on the
user's system instead of building our own.
Just as a point of interest, I observed a 3-4% performance improvement
from the BigEnt strategy benchmark as a result of the upgrade to
rustc-hash 2.0. This has zero impact on overall performance.
PR #596 brought forward automatic generation of Linux manual pages for
Oxipng, which is executed every time Oxipng is built. However, while
building manpages on every build is convenient for Oxipng development
and doing so didn't catch my attention initially, it introduces
noticeable inefficiencies for crates using Oxipng as a library: during
their build, Oxipng manpages are also built, even though most dependent
crates won't use such artifacts, as they are not considered part of the
public Oxipng crate API or even appropriate for non-human consumption.
Moreover, generating manpages depends on `clap`, which is a heavyweight
dependency: according to a fresh `cargo build --timings --release` on my
development workstation, its `clap_builder` dependency is the third most
time consuming unit to build, totalling 1.5 s (out of 11.7 s, or 12.8%).
And there is no way for dependent crates to turn this off:
[`build-dependencies` cannot be conditional on crate
features](https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html#platform-specific-dependencies).
Potentially using other `cfg` hacks to either enable or disable manpage
generation is unergonomic, if not outright disallowed. Besides reducing
their compilation time cost, dependent crates may also want to trim the
size of their dependency tree, avoiding unnecessary dependency downloads
in the process.
Therefore, a better solution to conditionally build manpages in a way
convenient for both Oxipng maintainers and downstream consumers is
needed. My proposal implemented in this PR is to leverage the
[`cargo-xtask`](https://github.com/matklad/cargo-xtask) convention to
define an auxiliary crate to move the manpage generation logic and
dependencies to, which is not part of the `oxipng` crate published on
`crates.io`. That way Oxipng maintainers and packagers can still
generate manpages at request with ease, without any automation being
noticeable to uninterested crate consumers. And as a side benefit,
Oxipng maintainers can also benefit from slightly faster iteration times
due to the lack of a build script for the main crate.
The new `mangen` xtask can be run at any time with `cargo xtask mangen`.
The generated manpages are now available at
`target/xtask/mangen/manpages`. Existing deployment scripts were updated
accordingly.
This PR adds a build script to generate a man page using clap_mangen, as
per this example:
https://github.com/sondr3/clap-man-example/blob/main/build.rs
I'm not sure what to actually do with the man file from here, I guess
it's up to the packaging process to do something with it?
See
https://github.com/shssoichiro/oxipng/issues/69#issuecomment-1963352536
Note I couldn't see a way to include the `DISPLAY` chunk names from the
constant as we did before. They're now just hardcoded into the help and
will require manually updating if the list changes.
Closes#526
---------
Co-authored-by: Alejandro González <me@alegon.dev>
This PR makes 3 changes that together reduce binary size by around 25%:
- Sets lto="fat" in cargo.toml
- Sets panic="abort" in cargo.toml
- Sets location-detail=none in RUSTFLAGS
Closes#571
An unrelated change: I've replaced the zopfli test file with a smaller
one that runs much faster, as well as removing the slow test for
issue-133 which was related to an older alpha optimisation that is no
longer relevant.
There was an incorrect glob `bench/*` that was doing nothing, since the
benchmarks are in `benches/`; when I corrected it to `benches/*`, `cargo
publish --dry-run` failed:
```
error: failed to verify package tarball
Caused by:
failed to parse manifest at `/home/ben/src/forks/oxipng/target/package/oxipng-9.0.0/Cargo.toml`
Caused by:
can't find `zopfli` bench at `benches/zopfli.rs` or `benches/zopfli/main.rs`. Please specify bench.path if you want to use a non-default path.
```
…so I stopped trying to exclude the benchmarks from published crates at
all.
-----
Then, I added `Dockerfile`, `index.html`, and `scripts/` to the list of
paths to exclude from published crates.
Finally, I added some unnecessary “dotfiles” to the list of paths to
exclude from published crates.
-----
Some of this was suggested in a [package review for Fedora
Linux](https://bugzilla.redhat.com/show_bug.cgi?id=2259760).
After the PR:
```
$ cargo package --list
.cargo/config.toml
.cargo_vcs_info.json
CHANGELOG.md
Cargo.lock
Cargo.toml
Cargo.toml.orig
LICENSE
MANUAL.txt
README.md
benches/deflate.rs
[…]
benches/zopfli.rs
src/atomicmin.rs
[…]
src/sanity_checks.rs
$ cargo publish --dry-run
[…]
Compiling oxipng v9.0.0 (/home/ben/src/forks/oxipng/target/package/oxipng-9.0.0)
Finished dev [optimized + debuginfo] target(s) in 15.76s
Packaged 37 files, 255.4KiB (61.6KiB compressed)
Uploading oxipng v9.0.0 (/home/ben/src/forks/oxipng)
warning: aborting upload due to dry run
```
This PR brings a big overhaul to oxipng's help, with new long form
descriptions of many options.
The full output (--help) is added as a text file MANUAL.txt. Critiques
welcome.
The short output (-h) is simplified and appears as follows:
```
Losslessly improve compression of PNG files
Usage: oxipng [OPTIONS] <files>...
Arguments:
<files>... File(s) to compress (use '-' for stdin)
Options:
-o, --opt <level> Optimization level (0-6, or max) [default: 2]
-r, --recursive Recurse input directories, optimizing all PNG files
--dir <directory> Write output file(s) to <directory>
--out <file> Write output file to <file>
--stdout Write output to stdout
-p, --preserve Preserve file permissions and timestamps if possible
-P, --pretend Do not write any files, only show compression results
-s Strip safely-removable chunks, same as '--strip safe'
--strip <mode> Strip metadata (safe, all, or comma-separated list)
CAUTION: 'all' will convert APNGs to standard PNGs
--keep <list> Strip all metadata except in the comma-separated list
-a, --alpha Perform additional alpha channel optimization
-i, --interlace <type> Set PNG interlacing type (0, 1, keep) [default: 0]
--scale16 Forcibly reduce 16-bit images to 8-bit (lossy)
-v, --verbose... Run in verbose mode (use twice to increase verbosity)
-q, --quiet Run in quiet mode
-f, --filters <list> Filters to try (0-9; see '--help' for details)
--fast Use fast filter evaluation
--zc <level> Deflate compression level (1-12)
--nb Do not change bit depth
--nc Do not change color type
--np Do not change color palette
--ng Do not change to or from grayscale
--nx Do not perform any transformations
--nz Do not recompress unless transformations occur
--fix Disable checksum validation
--force Write the output even if it is larger than the input
-Z, --zopfli Use the much slower but stronger Zopfli compressor
--timeout <secs> Maximum amount of time to spend on optimizations
-t, --threads <num> Set number of threads to use [default: num CPU cores]
-h, --help Print help (see more with '--help')
-V, --version Print version
Run `oxipng --help` to see full details of all options
```
---------
Co-authored-by: Alejandro González <me@alegon.dev>
This update brings several parameterization and usage flexibility
improvements on Zopfli, allowing users to choose to limit execution time
by a number of iterations without improvement, and exposing a more
advanced `ZlibEncoder` struct to tune compression block sizes and
DEFLATE block types. Some minor microoptimizations were also made.
For now, I don't expect this PR to substantially affect how OxiPNG
compresses images using its Zopfli mode, but the additional parameter
customization may come in handy for future work improving how Zopfli is
used in OxiPNG.
As commented in issues https://github.com/shssoichiro/oxipng/issues/444
and https://github.com/shssoichiro/oxipng/issues/518, there is some user
interest for distributing binaries for each unstable commit, and target
ARM64 platforms. Personally, I think both suggestions are useful for the
project, as uploading binary artifacts for each commit might help
interested users to catch regressions and give feedback earlier, and
powerful ARM64 platforms are becoming increasingly popular due to some
cloud services (e.g., Amazon EC2, Azure VMs, Oracle Cloud) offering
cheaper plans for this hardware, in addition to the well-known push for
ARM by Apple with their custom M1 chips.
These changes make the CI target ARM64 as a first-class citizen. Because
the public GitHub actions runners can only be hosted on x64 for now, I
resorted to cross-compilation, [Debian's
multiarch](https://elinux.org/images/d/d8/Multiarch_and_Why_You_Should_Care-_Running%2C_Installing_and_Crossbuilding_With_Multiple_Architectures.pdf),
and QEMU to build, get ARM64 C library dependencies, and run tests,
respectively.
When the CI workflow finishes, a release CLI binary artifact is now
uploaded, which can be downloaded from the workflow run page on the
GitHub web interface.
In addition, these changes also introduce some cleanup and miscellaneous
improvements and changes to the CI workflow:
- Tests are run using [`nextest`](https://nexte.st/) instead of `cargo
test`, which substantially speeds up their execution. (On my development
workstation, `cargo test --release` takes around 10.67 s, while `cargo
nextest run --release` takes around 6.02 s.)
- The dependencies on unmaintained `actions-rs` actions were dropped in
favor of running Cargo commands directly, or using
`giraffate/clippy-action` for pretty inline annotations for Clippy. This
gets rid of the deprecation warnings for each workflow run.
- Most CI steps are run with a nightly Rust toolchain now, which allows
to take advantage of the latest Clippy lints and codegen improvements.
In my experience, when not relying on specific nightly features or
compiler internals, Rust does a pretty good job at making it possible to
rely on a rolling-release compiler for CI, as breakage is extremely rare
and thus offset by the improved features.
- The MSRV check was moved to a separate job with less steps, so that it
takes less of a toll on total workflow run minutes.
## Pending tasks
- [x] Generate universal macOS binaries with `lipo` (i.e., containing
both `aarch64` and `x64` code)
- [x] Tirelessly fix the stupid errors that tend to happen when
deploying a new CI workflow for the first time
- [x] Think what to do with the `deploy.yml` workflow. Should it fetch
artifacts from the CI job instead of building them again?
- [x] Maybe bring back 32-bit Windows binaries. Are they actually useful
for somebody, or just a way to remember the good old days?
---------
Co-authored-by: Josh Holmer <jholmer.in@gmail.com>
* Add .whitesource configuration file
* Experimental: allow Zopfli to use any size BufWriter
* Allow user to specify the output buffer size as well
* Allow user to specify maximum block splits
* Reformat and fix warnings
* Use deflater on iCCP chunk as well
* Bug fix: need to implement Zlib format
* Make functions const when possible
* Switch to using zopfli::Options in prep for https://github.com/zopfli-rs/zopfli/pull/21
* Switch to using zopfli::Options in prep for https://github.com/zopfli-rs/zopfli/pull/21
* Cargo fmt
* Fix compilation
* Fix tests
* Fix more lints
* Fix more lints
* Fix compilation more
---------
Co-authored-by: mend-bolt-for-github[bot] <42819689+mend-bolt-for-github[bot]@users.noreply.github.com>
Co-authored-by: Chris Hennick <hennickc@amazon.com>
Co-authored-by: Chris Hennick <4961925+Pr0methean@users.noreply.github.com>
* Update Zopfli and several other depenencies
I've just published a new Zopfli release, v0.7.3, which includes several
new features and internal refactors. Performance should be a tad bit
better, but I didn't test it throughly, so YMMV. Perhaps more
importantly for OxiPNG, its dependency tree is smaller, and
Gzip-exclusive compression code can be excluded at compile time thanks
to new feature switches. As I mentioned on
https://github.com/shssoichiro/oxipng/pull/495#issuecomment-1552669505,
I plan on delivering more significant Zopfli performance improvements at
some point, but for now I think it's good to give the new release more
real-world usage and testing 😄
While at it, I've upgraded other dependencies that are not
performance-critical to their latest semver-compatible versions. This
excludes `libdeflater` on purpose, as its performance characteristics
are said to be somewhat different.
* Update Zopfli to v0.7.4
v0.7.3 was superseeded shortly after v0.7.3 was released to address a
last minute change to the new API it introduced. OxiPNG is not affected
by this, but I think it's good practice to update Zopfli anyway.
* Make dependency on `image` optional
After PR https://github.com/shssoichiro/oxipng/pull/481 was merged, the
`image` dependency became unused when building with debug assertions
disabled, as it is only used to implement output sanity checks when such
assertions are enabled.
The `image` crate transitively pulls a significant amount of
dependencies, so it's useful for OxiPNG users to get rid of them when
not needed.
[Cargo does not allow specifying dependencies that are only pulled when
debug assertions are
enabled](https://github.com/rust-lang/cargo/issues/7634), so the next
best way to give users some flexibility is to gate those debug
assertions behind a feature flag.
These changes add a `sanity-checks` feature flag that controls whether
the `image` crate and the related sanity checks are compiled in. This
feature is enabled by default to keep debug builds useful to catch
problems during development.
* Fix Clippy lints
* Run tests with new sanity-checks feature enabled
`crossbeam-channel` is only used if the `parallel` flag is enabled, so
it can be gated behind that feature flag to potentially reduce the size
of the build dependency tree for dependent projects.
While at it, I've fixed several warnings emmitted in tests/flags.rs.
The `itertools` dependency became unused at a3b104a2ed, so there is no point in declaring it as a dependency any longer.
This was detected with the help of the
[`cargo-udeps`](https://github.com/est31/cargo-udeps) tool. I then
verified that it was not a false positive.
