From 7e1bf6cdfdfd7df030732b980962c1a81dfebe2d Mon Sep 17 00:00:00 2001
From: Andreas Molzer <andreas.molzer@gmx.de>
Date: Thu, 14 Jul 2022 21:04:50 +0200
Subject: [PATCH 1/4] Update binary with clap argument handling

---
 Cargo.toml |   8 +-
 bin/lzw.rs | 227 ++++++++++++++++++++++++++++++++++++-----------------
 2 files changed, 163 insertions(+), 72 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index 51fece1..bf3812d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -31,6 +31,10 @@ version = "0.6.2"
 default-features = false
 features = ["compat"]
 
+[dependencies.clap]
+version = "3"
+optional = true
+
 [features]
 default = ["std"]
 # Enable usage of the standard library and in particular any interface that
@@ -46,12 +50,14 @@ alloc = []
 # `std::io::Error` interface. Note that this features is NOT supported on
 # 1.34.2 but only on stable.
 async = ["futures", "std"]
+# Dependencies of our binary target.
+bin = ["clap"]
 
 [[bin]]
 name = "lzw"
 path = "bin/lzw.rs"
 bench = false
-required-features = ["std"]
+required-features = ["std", "bin"]
 
 [[bench]]
 name = "msb8"
diff --git a/bin/lzw.rs b/bin/lzw.rs
index cb55dce..1c02238 100644
--- a/bin/lzw.rs
+++ b/bin/lzw.rs
@@ -2,16 +2,16 @@
 use std::path::PathBuf;
 use std::{env, ffi, fs, io, process};
 
-extern crate weezl;
 use weezl::{decode as delzw, encode as enlzw, BitOrder};
 
-fn main() {
-    let args = env::args_os().skip(1);
-    let flags = Flags::from_args(args).unwrap_or_else(|ParamError| explain());
-
-    let out = io::stdout();
-    let out = out.lock();
+fn main() -> CodingResult {
+    CodingResult::catch_panic(|| {
+        let flags = Flags::from_args(env::args_os()).unwrap_or_else(|ParamError| explain());
+        run_coding(flags)
+    })
+}
 
+fn run_coding(flags: Flags) -> Result<(), io::Error> {
     let mut files = flags.files;
     let input = files.pop().unwrap_or_else(explain);
     if !files.is_empty() {
@@ -25,34 +25,43 @@ fn main() {
     };
     let bit_order = flags.bit_order;
 
-    let result = match (input, operation) {
-        (Input::File(file), Operation::Encode) => (|| {
+    let (encoder, decoder): (fn(BitOrder, u8) -> _, fn(BitOrder, u8) -> _) = match flags.style {
+        Style::Gif => (enlzw::Encoder::new, delzw::Decoder::new),
+        Style::Tiff => (
+            enlzw::Encoder::with_tiff_size_switch,
+            delzw::Decoder::with_tiff_size_switch,
+        ),
+    };
+
+    let out = io::stdout();
+    let out = out.lock();
+
+    match (input, operation) {
+        (Input::File(file), Operation::Encode) => {
             let data = fs::File::open(file)?;
             let file = io::BufReader::with_capacity(1 << 26, data);
 
-            let mut encoder = enlzw::Encoder::new(bit_order, min_code);
+            let mut encoder = encoder(bit_order, min_code);
             encoder.into_stream(out).encode_all(file).status
-        })(),
+        }
         (Input::Stdin, Operation::Encode) => {
             let input = io::BufReader::with_capacity(1 << 26, io::stdin());
-            let mut encoder = enlzw::Encoder::new(bit_order, min_code);
+            let mut encoder = encoder(bit_order, min_code);
             encoder.into_stream(out).encode_all(input).status
         }
-        (Input::File(file), Operation::Decode) => (|| {
+        (Input::File(file), Operation::Decode) => {
             let data = fs::File::open(file)?;
             let file = io::BufReader::with_capacity(1 << 26, data);
 
-            let mut decoder = delzw::Decoder::new(bit_order, min_code);
+            let mut decoder = decoder(bit_order, min_code);
             decoder.into_stream(out).decode_all(file).status
-        })(),
+        }
         (Input::Stdin, Operation::Decode) => {
             let input = io::BufReader::with_capacity(1 << 26, io::stdin());
-            let mut decoder = delzw::Decoder::new(bit_order, min_code);
+            let mut decoder = decoder(bit_order, min_code);
             decoder.into_stream(out).decode_all(input).status
         }
-    };
-
-    result.expect("Operation Failed: ");
+    }
 }
 
 struct Flags {
@@ -60,20 +69,29 @@ struct Flags {
     operation: Option<Operation>,
     min_code: u8,
     bit_order: BitOrder,
+    style: Style,
 }
 
 struct ParamError;
 
+#[derive(Debug)]
 enum Input {
     File(PathBuf),
     Stdin,
 }
 
+#[derive(Debug)]
 enum Operation {
     Encode,
     Decode,
 }
 
+#[derive(Debug)]
+enum Style {
+    Gif,
+    Tiff,
+}
+
 fn explain<T>() -> T {
     println!(
         "Usage: lzw [-e|-d] <file>\n\
@@ -92,68 +110,135 @@ impl Default for Flags {
             operation: None,
             min_code: 8,
             bit_order: BitOrder::Msb,
+            style: Style::Gif,
         }
     }
 }
 
+fn command() -> clap::Command<'static> {
+    clap::Command::new("weezl")
+        .author("Andreas Molzer")
+        .version(env!("CARGO_PKG_VERSION"))
+        .about("Interact with lzw binary data")
+        .arg(
+            clap::Arg::new("decode")
+                .short('d')
+                .long("--decode")
+                .takes_value(false),
+        )
+        .arg(
+            clap::Arg::new("encode")
+                .short('e')
+                .long("--encode")
+                .takes_value(false),
+        )
+        .group(
+            clap::ArgGroup::new("operation")
+                .args(&["decode", "encode"])
+                .multiple(false)
+                .required(true),
+        )
+        .arg(
+            clap::Arg::new("min_code")
+                .short('w')
+                .long("--word-bits")
+                .takes_value(true)
+                .value_parser(2..12),
+        )
+        .arg(
+            clap::Arg::new("bit_order")
+                .short('b')
+                .long("--bit-order")
+                .takes_value(true)
+                .value_parser(["l", "m", "least", "most"]),
+        )
+        .arg(
+            clap::Arg::new("style")
+                .short('s')
+                .long("--style")
+                .default_value("gif")
+                .value_parser(["gif", "tiff"]),
+        )
+        .arg(
+            clap::Arg::new("file")
+                .default_value("-")
+                .value_parser(clap::builder::ValueParser::path_buf()),
+        )
+}
+
 impl Flags {
     fn from_args(mut args: impl Iterator<Item = ffi::OsString>) -> Result<Self, ParamError> {
         let mut flags = Flags::default();
-        let mut operation = None;
-        loop {
-            match args.next().as_ref().and_then(|s| s.to_str()) {
-                Some("-d") | Some("--decode") => {
-                    if operation.is_some() {
-                        return Err(ParamError);
-                    }
-                    operation = Some(Operation::Decode);
-                }
-                Some("-e") | Some("--encode") => {
-                    if operation.is_some() {
-                        return Err(ParamError);
-                    }
-                    operation = Some(Operation::Encode);
-                }
-                Some("-w") | Some("--word-bits") => match args.next() {
-                    None => return Err(ParamError),
-                    Some(bits) => {
-                        let st = bits.to_str().ok_or(ParamError)?;
-                        flags.min_code = st.parse().ok().ok_or(ParamError)?;
-                    }
-                },
-                Some("-le") | Some("--little-endian") => {
-                    flags.bit_order = BitOrder::Lsb;
-                }
-                Some("-be") | Some("--big-endian") | Some("-ne") | Some("--network-endian") => {
-                    flags.bit_order = BitOrder::Msb;
-                }
-                Some("-") => {
-                    flags.files.push(Input::Stdin);
-                }
-                Some(other) if other.starts_with('-') => {
-                    // Reserved for future use.
-                    // -a: self-describing archive format, similar to actual compress
-                    // -b: maximum bits
-                    // -v: verbosity
-                    // some compress compatibility mode? Probably through arg(0) though.
-                    return Err(ParamError);
-                }
-                Some(file) => {
-                    flags.files.push(Input::File(file.into()));
-                }
-                None => break,
-            };
+        let matches = command().get_matches_from(args.by_ref());
+
+        if matches.contains_id("decode") {
+            flags.operation = Some(Operation::Decode);
+        } else if matches.contains_id("encode") {
+            flags.operation = Some(Operation::Encode);
         }
 
-        flags.files.extend(args.map(|file| {
-            if let Some("-") = file.to_str() {
-                Input::Stdin
-            } else {
-                Input::File(file.into())
-            }
-        }));
+        if let Some(&m) = matches.get_one::<u8>("min_code") {
+            flags.min_code = m;
+        }
+
+        match matches.get_one::<String>("bit_order").map(String::as_str) {
+            Some("m") => flags.bit_order = BitOrder::Msb,
+            Some("l") => flags.bit_order = BitOrder::Lsb,
+            Some("most") => flags.bit_order = BitOrder::Msb,
+            Some("least") => flags.bit_order = BitOrder::Lsb,
+            Some(_) => unreachable!("unparsed bit order"),
+            _ => {}
+        }
+
+        match matches.get_one::<String>("style").map(String::as_str) {
+            Some("gif") => flags.style = Style::Gif,
+            Some("tiff") => flags.style = Style::Tiff,
+            Some(_) => unreachable!("unparsed style"),
+            _ => {}
+        }
+
+        match matches.get_one::<PathBuf>("file") {
+            None => flags.files = vec![Input::Stdin],
+            Some(p) if *p == PathBuf::from("-") => flags.files = vec![Input::Stdin],
+            Some(p) => flags.files = vec![Input::File(p.clone())],
+        }
 
-        flags.operation = operation;
         Ok(flags)
     }
 }
+
+enum CodingResult {
+    Ok,
+    Err(io::Error),
+    Panic,
+}
+
+impl CodingResult {
+    fn catch_panic(
+        op: fn() -> Result<(), io::Error>
+    ) -> Self {
+        std::panic::catch_unwind(|| match op() {
+            Ok(()) => CodingResult::Ok,
+            Err(err) => CodingResult::Err(err),
+        })
+        .unwrap_or(CodingResult::Panic)
+    }
+}
+
+impl std::process::Termination for CodingResult {
+    fn report(self) -> std::process::ExitCode {
+        match self {
+            CodingResult::Ok => std::process::ExitCode::SUCCESS,
+            CodingResult::Err(err) => {
+                eprintln!("{}", err);
+                std::process::ExitCode::FAILURE
+            }
+            CodingResult::Panic => {
+                eprintln!("The process failed irrecoverably! This should never happen and is a bug.");
+                eprintln!("If you know what this means, please report it to:");
+                eprintln!("	<{}>", env!("CARGO_PKG_REPOSITORY"));
+                std::process::ExitCode::from(128)
+            }
+        }
+    }
+}

From 631a6361a9ecacab714738c61fb5787264329753 Mon Sep 17 00:00:00 2001
From: Andreas Molzer <andreas.molzer@gmx.de>
Date: Thu, 14 Jul 2022 21:27:03 +0200
Subject: [PATCH 2/4] Bump MSRV for binary target compatibility

---
 .github/workflows/rust.yml |   7 +-
 Cargo.lock                 | 597 +++++++++++++++++++++----------------
 Cargo.toml                 |   3 +-
 rust-toolchain             |   1 +
 4 files changed, 339 insertions(+), 269 deletions(-)
 create mode 100644 rust-toolchain

diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index c6df64b..a91a39f 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -10,19 +10,18 @@ jobs:
     strategy:
       matrix:
         rust: [stable, beta, nightly]
-        features: ["", "alloc", "std", "async"]
+        features: ["", "alloc", "std", "async", "bin"]
     steps:
     - uses: actions/checkout@v2
     - run: rustup default ${{ matrix.rust }}
     - name: build
       run: >
-        cargo build --verbose --no-default-features --features "$FEATURES"
+        cargo build --all --verbose --no-default-features --features "$FEATURES"
       env:
         FEATURES: ${{ matrix.features }}
     - name: test
       run: >
         cargo test --tests --benches --no-default-features --features "$FEATURES" --release
-      if: ${{ matrix.rust != '1.34.2' }}
       env:
         FEATURES: ${{ matrix.features }}
   build_msrv:
@@ -32,7 +31,7 @@ jobs:
         features: ["", "std"]
     steps:
     - uses: actions/checkout@v2
-    - run: rustup default "1.34.2"
+    - run: rustup default "1.61.0"
     - name: build
       run: cargo build --verbose --no-default-features --features "$FEATURES"
       env:
diff --git a/Cargo.lock b/Cargo.lock
index 556f342..2719395 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,824 +1,893 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "atty"
 version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
 dependencies = [
- "hermit-abi 0.1.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.126 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hermit-abi",
+ "libc",
+ "winapi",
 ]
 
 [[package]]
 name = "autocfg"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
 
 [[package]]
 name = "bitflags"
 version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
 name = "bstr"
 version = "0.2.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba3569f383e8f1598449f1a423e72e99569137b47740b1da11ef19af3d5c3223"
 dependencies = [
- "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 2.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex-automata 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.138 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static",
+ "memchr",
+ "regex-automata",
+ "serde",
 ]
 
 [[package]]
 name = "bumpalo"
 version = "3.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "37ccbd214614c6783386c1af30caf03192f17891059cecc394b4fb119e363de3"
 
 [[package]]
 name = "bytes"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c4872d67bab6358e59559027aa3b9157c53d9358c51423c17554809a8858e0f8"
 
 [[package]]
 name = "cast"
 version = "0.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4c24dab4283a142afa2fdca129b80ad2c6284e073930f964c3a1293c225ee39a"
 dependencies = [
- "rustc_version 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc_version",
 ]
 
 [[package]]
 name = "cast"
 version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "37b2a672a2cb129a2e41c10b1224bb368f9f37a2b16b612598138befd7b37eb5"
 
 [[package]]
 name = "cfg-if"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "clap"
 version = "2.34.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a0610544180c38b88101fecf2dd634b174a62eef6946f84dfc6a7127512b381c"
+dependencies = [
+ "bitflags",
+ "textwrap 0.11.0",
+ "unicode-width",
+]
+
+[[package]]
+name = "clap"
+version = "3.2.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ab8b79fe3946ceb4a0b1c080b4018992b8d27e9ff363644c1c9b6387c854614d"
 dependencies = [
- "bitflags 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicode-width 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "atty",
+ "bitflags",
+ "clap_lex",
+ "indexmap",
+ "strsim",
+ "termcolor",
+ "textwrap 0.15.0",
+]
+
+[[package]]
+name = "clap_lex"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2850f2f5a82cbf437dd5af4d49848fbdfc27c157c3d010345776f952765261c5"
+dependencies = [
+ "os_str_bytes",
 ]
 
 [[package]]
 name = "criterion"
 version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "atty 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
- "cast 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "clap 2.34.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "criterion-plot 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "csv 1.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "itertools 0.10.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.2.15 (registry+https://github.com/rust-lang/crates.io-index)",
- "oorandom 11.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "plotters 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rayon 1.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.138 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_cbor 0.11.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.138 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
- "tinytemplate 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "walkdir 2.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+checksum = "b01d6de93b2b6c65e17c634a26653a29d107b3c98c607c765bf38d041531cd8f"
+dependencies = [
+ "atty",
+ "cast 0.3.0",
+ "clap 2.34.0",
+ "criterion-plot",
+ "csv",
+ "itertools",
+ "lazy_static",
+ "num-traits",
+ "oorandom",
+ "plotters",
+ "rayon",
+ "regex",
+ "serde",
+ "serde_cbor",
+ "serde_derive",
+ "serde_json",
+ "tinytemplate",
+ "walkdir",
 ]
 
 [[package]]
 name = "criterion-plot"
 version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d00996de9f2f7559f7f4dc286073197f83e92256a59ed395f9aac01fe717da57"
 dependencies = [
- "cast 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "itertools 0.10.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cast 0.2.7",
+ "itertools",
 ]
 
 [[package]]
 name = "crossbeam-channel"
 version = "0.5.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4c02a4d71819009c192cf4872265391563fd6a84c81ff2c0f2a7026ca4c1d85c"
 dependencies = [
- "cfg-if 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "crossbeam-utils 0.8.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if",
+ "crossbeam-utils",
 ]
 
 [[package]]
 name = "crossbeam-deque"
 version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6455c0ca19f0d2fbf751b908d5c55c1f5cbc65e03c4225427254b46890bdde1e"
 dependencies = [
- "cfg-if 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "crossbeam-epoch 0.9.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "crossbeam-utils 0.8.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if",
+ "crossbeam-epoch",
+ "crossbeam-utils",
 ]
 
 [[package]]
 name = "crossbeam-epoch"
 version = "0.9.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "07db9d94cbd326813772c968ccd25999e5f8ae22f4f8d1b11effa37ef6ce281d"
 dependencies = [
- "autocfg 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "cfg-if 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "crossbeam-utils 0.8.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "memoffset 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "once_cell 1.13.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "scopeguard 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg",
+ "cfg-if",
+ "crossbeam-utils",
+ "memoffset",
+ "once_cell",
+ "scopeguard",
 ]
 
 [[package]]
 name = "crossbeam-utils"
 version = "0.8.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7d82ee10ce34d7bc12c2122495e7593a9c41347ecdd64185af4ecf72cb1a7f83"
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+checksum = "c811ca4a8c853ef420abd8592ba53ddbbac90410fab6903b3e79972a631f7680"
diff --git a/Cargo.toml b/Cargo.toml
index bf3812d..b8896e0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,6 +8,7 @@ readme = "README.md"
 repository = "https://github.com/image-rs/lzw.git"
 documentation = "https://docs.rs/weezl"
 edition = "2018"
+rust-version = "1.56"
 exclude = ["benches/*.lzw"]
 
 [lib]
@@ -51,7 +52,7 @@ alloc = []
 # 1.34.2 but only on stable.
 async = ["futures", "std"]
 # Dependencies of our binary target.
-bin = ["clap"]
+bin = ["clap", "std"]
 
 [[bin]]
 name = "lzw"
diff --git a/rust-toolchain b/rust-toolchain
new file mode 100644
index 0000000..91951fd
--- /dev/null
+++ b/rust-toolchain
@@ -0,0 +1 @@
+1.61.0

From e77fbba442b62bfc7cbb3443455f9b13a3c36d33 Mon Sep 17 00:00:00 2001
From: Andreas Molzer <andreas.molzer@gmx.de>
Date: Thu, 14 Jul 2022 21:30:03 +0200
Subject: [PATCH 3/4] Bump version to 0.2.0

---
 Cargo.toml | 2 +-
 Changes.md | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/Cargo.toml b/Cargo.toml
index b8896e0..cb08dcd 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "weezl"
-version = "0.1.7"
+version = "0.2.0"
 license = "MIT OR Apache-2.0"
 description = "Fast LZW compression and decompression."
 authors = ["HeroicKatora <andreas.molzer@gmx.de>"]
diff --git a/Changes.md b/Changes.md
index d750a60..e5233df 100644
--- a/Changes.md
+++ b/Changes.md
@@ -1,3 +1,9 @@
+## Version 0.2.0
+
+- No functional changes.
+- MSRV is recorded as `rust-version` in `Cargo.toml` from now on and may change
+  with any minor version.
+
 ## Version 0.1.7
 
 - Implicit reset is now supported for decoding.

From 5030df308c27114ea3d94ab13506e1fc921f72a3 Mon Sep 17 00:00:00 2001
From: Andreas Molzer <andreas.molzer@gmx.de>
Date: Thu, 14 Jul 2022 21:33:53 +0200
Subject: [PATCH 4/4] A minimal rust fmt formatting pass

---
 bin/lzw.rs | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/bin/lzw.rs b/bin/lzw.rs
index 1c02238..b037156 100644
--- a/bin/lzw.rs
+++ b/bin/lzw.rs
@@ -214,9 +214,7 @@ enum CodingResult {
 }
 
 impl CodingResult {
-    fn catch_panic(
-        op: fn() -> Result<(), io::Error>
-    ) -> Self {
+    fn catch_panic(op: fn() -> Result<(), io::Error>) -> Self {
         std::panic::catch_unwind(|| match op() {
             Ok(()) => CodingResult::Ok,
             Err(err) => CodingResult::Err(err),
@@ -234,7 +232,9 @@ impl std::process::Termination for CodingResult {
                 std::process::ExitCode::FAILURE
             }
             CodingResult::Panic => {
-                eprintln!("The process failed irrecoverably! This should never happen and is a bug.");
+                eprintln!(
+                    "The process failed irrecoverably! This should never happen and is a bug."
+                );
                 eprintln!("If you know what this means, please report it to:");
                 eprintln!("	<{}>", env!("CARGO_PKG_REPOSITORY"));
                 std::process::ExitCode::from(128)