A tool to optimize your Solidity function signatures.

Overview

sigop

A CLI tool to optimize your Solidity function signatures. I wanted to create this after seeing transmissions11's comment about this optimization.

Inspired by the great work of emn178.

🧪 How does it work ?

The optimizer takes a function signature such as myFunction(address) and tries to combine it with a suffix generated from a dictionary.

For each combination, the 4-bytes function selector is computed and verified : if it contains a specified number of zeros at the beginning, the optimization has been found.

🚀 Getting started !

⚙️ Installation

Installing from cargo:

cargo install sigop

Or building locally from source:

make build-release

🏁 Quickstart

./target/release/sigop -s "myFunction(address)"

Which should print:

[2022-09-23T04:06:03Z INFO  sigop::optimizer] Found this optimization: myFunction_6mI(address)

Using cast, we can see the optimized function selector:

$ cast sig "myFunction_6mI(address)"
0x00001926

✏️ Custom parameters

You can specify custom parameters used by the optimizer:

  1. length: The maximum size of the suffix following the original function name.
  2. target: The number of zero-bytes you want to have at the beginning of the optimized function selector.

Example:

$ sigop -s "myFunction(address)" --length=4 --target=3
[2022-09-23T04:06:26Z INFO  sigop::optimizer] Found this optimization: myFunction_LYq3(address)

$ cast sig "myFunction_LYq3(address)"
0x0000006d

Results

Using Remix, we can track the gas cost of calling these functions:

// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.14;

contract Test {
    // Execution cost : 22132
    function myFunction(address a) public pure returns (address) {
        return a;
    }

    // Execution cost : 22074
    function myFunction_LYq3(address a) public pure returns (address) {
        return a;
    }
}

🤖 Author

Made with ❤️ by 🤖 Luca Georges François 🤖

Comments
  • chore(deps): Update clap requirement from 3.2.22 to 4.0.30

    chore(deps): Update clap requirement from 3.2.22 to 4.0.30

    Updates the requirements on clap to permit the latest version.

    Release notes

    Sourced from clap's releases.

    v4.0.30

    [4.0.30] - 2022-12-21

    Fixes

    • (error) Improve error for args_conflicts_with_subcommand
    Changelog

    Sourced from clap's changelog.

    [4.0.30] - 2022-12-21

    Fixes

    • (error) Improve error for args_conflicts_with_subcommand

    [4.0.29] - 2022-11-29

    [4.0.28] - 2022-11-29

    Fixes

    • Fix wasm support which was broken in 4.0.27

    [4.0.27] - 2022-11-24

    Features

    • Have Arg::value_parser accept Vec<impl Into<PossibleValue>>
    • Implement Display and FromStr for ColorChoice

    Fixes

    • Remove soundness issue by switching from atty to is-terminal

    [4.0.26] - 2022-11-16

    Fixes

    • (error) Fix typos in ContextKind::as_str

    [4.0.25] - 2022-11-15

    Features

    • (error) Report available subcommands when required subcommand is missing

    [4.0.24] - 2022-11-14

    Fixes

    • Avoid panic when printing an argument that isn't built

    [4.0.23] - 2022-11-11

    Fixes

    • Don't panic on reporting invalid-long errors when followed by invalid UTF8
    • (help) Clarified argument to help subcommand

    ... (truncated)

    Commits
    • d2d0222 chore: Release
    • 56a0bb6 docs: Update changelog
    • b941a3e Merge pull request #4567 from epage/error
    • 453ac0b fix(parser): Be less confusing with args/subcommand conflicts
    • 2a374db test(parser): Show bad behavior
    • f632424 test(parser): Consolidate args_conflicts_with tests
    • a72f962 docs(builder): Escape non-tags
    • ac48e2d docs: Make less brittle for rust versions
    • a3381a2 docs(readme): Fix build status badge (#4559)
    • aa54204 Merge pull request #4555 from epage/reset
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  • chore(deps): Update clap requirement from 3.2.22 to 4.0.29

    chore(deps): Update clap requirement from 3.2.22 to 4.0.29

    Updates the requirements on clap to permit the latest version.

    Release notes

    Sourced from clap's releases.

    v4.0.29

    [4.0.29] - 2022-11-29

    Changelog

    Sourced from clap's changelog.

    [4.0.29] - 2022-11-29

    [4.0.28] - 2022-11-29

    Fixes

    • Fix wasm support which was broken in 4.0.27

    [4.0.27] - 2022-11-24

    Features

    • Have Arg::value_parser accept Vec<impl Into<PossibleValue>>
    • Implement Display and FromStr for ColorChoice

    Fixes

    • Remove soundness issue by switching from atty to is-terminal

    [4.0.26] - 2022-11-16

    Fixes

    • (error) Fix typos in ContextKind::as_str

    [4.0.25] - 2022-11-15

    Features

    • (error) Report available subcommands when required subcommand is missing

    [4.0.24] - 2022-11-14

    Fixes

    • Avoid panic when printing an argument that isn't built

    [4.0.23] - 2022-11-11

    Fixes

    • Don't panic on reporting invalid-long errors when followed by invalid UTF8
    • (help) Clarified argument to help subcommand

    [4.0.22] - 2022-11-07

    Fixes

    • (help) Don't overflow into next-line-help early due to stale (pre-v4) padding calculations

    ... (truncated)

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  • chore(deps): Update clap requirement from 3.2.22 to 4.0.28

    chore(deps): Update clap requirement from 3.2.22 to 4.0.28

    Updates the requirements on clap to permit the latest version.

    Release notes

    Sourced from clap's releases.

    v4.0.28

    [4.0.28] - 2022-11-29

    Fixes

    • Fix wasm support which was broken in 4.0.27
    Changelog

    Sourced from clap's changelog.

    [4.0.28] - 2022-11-29

    Fixes

    • Fix wasm support which was broken in 4.0.27

    [4.0.27] - 2022-11-24

    Features

    • Have Arg::value_parser accept Vec<impl Into<PossibleValue>>
    • Implement Display and FromStr for ColorChoice

    Fixes

    • Remove soundness issue by switching from atty to is-terminal

    [4.0.26] - 2022-11-16

    Fixes

    • (error) Fix typos in ContextKind::as_str

    [4.0.25] - 2022-11-15

    Features

    • (error) Report available subcommands when required subcommand is missing

    [4.0.24] - 2022-11-14

    Fixes

    • Avoid panic when printing an argument that isn't built

    [4.0.23] - 2022-11-11

    Fixes

    • Don't panic on reporting invalid-long errors when followed by invalid UTF8
    • (help) Clarified argument to help subcommand

    [4.0.22] - 2022-11-07

    Fixes

    • (help) Don't overflow into next-line-help early due to stale (pre-v4) padding calculations

    [4.0.21] - 2022-11-07

    ... (truncated)

    Commits
    • c3c9099 chore: Release
    • 6812761 docs: Update changelog
    • 2ad0eff fix: wasm32 targets with is-terminal (#4518)
    • bf39b8d docs(ref): Move flatten/subcommand to be under command attr
    • 3262016 chore: Release
    • 757f95b docs: Update changelog
    • 20e02eb Merge pull request #4509 from epage/possible
    • fb1d960 Merge pull request #4249 from jcgruenhage/replace-atty
    • 94aca92 feat: Create ValueParser from Vec<PossibleValue>
    • 3bccfce docs: Clarify PossibleValue is likely not needed
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  • chore(deps): Update clap requirement from 3.2.22 to 4.0.27

    chore(deps): Update clap requirement from 3.2.22 to 4.0.27

    Updates the requirements on clap to permit the latest version.

    Changelog

    Sourced from clap's changelog.

    [4.0.27] - 2022-11-24

    Features

    • Have Arg::value_parser accept Vec<impl Into<PossibleValue>>
    • Implement Display and FromStr for ColorChoice

    Fixes

    • Remove soundness issue by switching from atty to is-terminal

    [4.0.26] - 2022-11-16

    Fixes

    • (error) Fix typos in ContextKind::as_str

    [4.0.25] - 2022-11-15

    Features

    • (error) Report available subcommands when required subcommand is missing

    [4.0.24] - 2022-11-14

    Fixes

    • Avoid panic when printing an argument that isn't built

    [4.0.23] - 2022-11-11

    Fixes

    • Don't panic on reporting invalid-long errors when followed by invalid UTF8
    • (help) Clarified argument to help subcommand

    [4.0.22] - 2022-11-07

    Fixes

    • (help) Don't overflow into next-line-help early due to stale (pre-v4) padding calculations

    [4.0.21] - 2022-11-07

    Features

    • (derive) long_about and long_help attributes, without a value, force using doc comment (before it wouldn't be set if there wasn't anything different than the short help)

    [4.0.20] - 2022-11-07

    ... (truncated)

    Commits
    • 3262016 chore: Release
    • 757f95b docs: Update changelog
    • 20e02eb Merge pull request #4509 from epage/possible
    • fb1d960 Merge pull request #4249 from jcgruenhage/replace-atty
    • 94aca92 feat: Create ValueParser from Vec<PossibleValue>
    • 3bccfce docs: Clarify PossibleValue is likely not needed
    • 19981a2 docs: Clarify ColorChoice impls ValueEnum
    • 8d92f3e feat: Add Display/FromStr to ColorChoice
    • ed683ef fix: Always expose ColorChoice
    • 789bfd6 Merge pull request #4508 from epage/style
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  • chore(deps): Update clap requirement from 3.2.22 to 4.0.26

    chore(deps): Update clap requirement from 3.2.22 to 4.0.26

    Updates the requirements on clap to permit the latest version.

    Release notes

    Sourced from clap's releases.

    v4.0.26

    [4.0.26] - 2022-11-16

    Fixes

    • (error) Fix typos in ContextKind::as_str
    Changelog

    Sourced from clap's changelog.

    [4.0.26] - 2022-11-16

    Fixes

    • (error) Fix typos in ContextKind::as_str

    [4.0.25] - 2022-11-15

    Features

    • (error) Report available subcommands when required subcommand is missing

    [4.0.24] - 2022-11-14

    Fixes

    • Avoid panic when printing an argument that isn't built

    [4.0.23] - 2022-11-11

    Fixes

    • Don't panic on reporting invalid-long errors when followed by invalid UTF8
    • (help) Clarified argument to help subcommand

    [4.0.22] - 2022-11-07

    Fixes

    • (help) Don't overflow into next-line-help early due to stale (pre-v4) padding calculations

    [4.0.21] - 2022-11-07

    Features

    • (derive) long_about and long_help attributes, without a value, force using doc comment (before it wouldn't be set if there wasn't anything different than the short help)

    [4.0.20] - 2022-11-07

    Fixes

    • (derive) Allow defaulted value parser for '()' fields

    [4.0.19] - 2022-11-04

    Features

    • ColorChoice now implements ValueEnum

    [4.0.18] - 2022-10-20

    ... (truncated)

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  • chore(deps): Update clap requirement from 3.2.22 to 4.0.25

    chore(deps): Update clap requirement from 3.2.22 to 4.0.25

    Updates the requirements on clap to permit the latest version.

    Release notes

    Sourced from clap's releases.

    v4.0.25

    [4.0.25] - 2022-11-15

    Features

    • (error) Report available subcommands when required subcommand is missing
    Changelog

    Sourced from clap's changelog.

    [4.0.25] - 2022-11-15

    Features

    • (error) Report available subcommands when required subcommand is missing

    [4.0.24] - 2022-11-14

    Fixes

    • Avoid panic when printing an argument that isn't built

    [4.0.23] - 2022-11-11

    Fixes

    • Don't panic on reporting invalid-long errors when followed by invalid UTF8
    • (help) Clarified argument to help subcommand

    [4.0.22] - 2022-11-07

    Fixes

    • (help) Don't overflow into next-line-help early due to stale (pre-v4) padding calculations

    [4.0.21] - 2022-11-07

    Features

    • (derive) long_about and long_help attributes, without a value, force using doc comment (before it wouldn't be set if there wasn't anything different than the short help)

    [4.0.20] - 2022-11-07

    Fixes

    • (derive) Allow defaulted value parser for '()' fields

    [4.0.19] - 2022-11-04

    Features

    • ColorChoice now implements ValueEnum

    [4.0.18] - 2022-10-20

    Fixes

    • (derive) Allow #[command(skip)] to also work with enum variants with a value

    [4.0.17] - 2022-10-18

    ... (truncated)

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  • chore(deps): Update clap requirement from 3.2.22 to 4.0.24

    chore(deps): Update clap requirement from 3.2.22 to 4.0.24

    Updates the requirements on clap to permit the latest version.

    Release notes

    Sourced from clap's releases.

    v4.0.24

    [4.0.24] - 2022-11-14

    Fixes

    • Avoid panic when printing an argument that isn't built
    Changelog

    Sourced from clap's changelog.

    [4.0.24] - 2022-11-14

    Fixes

    • Avoid panic when printing an argument that isn't built

    [4.0.23] - 2022-11-11

    Fixes

    • Don't panic on reporting invalid-long errors when followed by invalid UTF8
    • (help) Clarified argument to help subcommand

    [4.0.22] - 2022-11-07

    Fixes

    • (help) Don't overflow into next-line-help early due to stale (pre-v4) padding calculations

    [4.0.21] - 2022-11-07

    Features

    • (derive) long_about and long_help attributes, without a value, force using doc comment (before it wouldn't be set if there wasn't anything different than the short help)

    [4.0.20] - 2022-11-07

    Fixes

    • (derive) Allow defaulted value parser for '()' fields

    [4.0.19] - 2022-11-04

    Features

    • ColorChoice now implements ValueEnum

    [4.0.18] - 2022-10-20

    Fixes

    • (derive) Allow #[command(skip)] to also work with enum variants with a value

    [4.0.17] - 2022-10-18

    Fixes

    • Allow using Arg::last(true) with Arg::value_hint(ValueHint::CommandWithArguments)

    [4.0.16] - 2022-10-18

    ... (truncated)

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  • chore(deps): Update clap requirement from 3.2.22 to 4.0.23

    chore(deps): Update clap requirement from 3.2.22 to 4.0.23

    Updates the requirements on clap to permit the latest version.

    Release notes

    Sourced from clap's releases.

    v4.0.23

    [4.0.23] - 2022-11-11

    Fixes

    • Don't panic on reporting invalid-long errors when followed by invalid UTF8
    • (help) Clarified argument to help subcommand
    Changelog

    Sourced from clap's changelog.

    [4.0.23] - 2022-11-11

    Fixes

    • Don't panic on reporting invalid-long errors when followed by invalid UTF8
    • (help) Clarified argument to help subcommand

    [4.0.22] - 2022-11-07

    Fixes

    • (help) Don't overflow into next-line-help early due to stale (pre-v4) padding calculations

    [4.0.21] - 2022-11-07

    Features

    • (derive) long_about and long_help attributes, without a value, force using doc comment (before it wouldn't be set if there wasn't anything different than the short help)

    [4.0.20] - 2022-11-07

    Fixes

    • (derive) Allow defaulted value parser for '()' fields

    [4.0.19] - 2022-11-04

    Features

    • ColorChoice now implements ValueEnum

    [4.0.18] - 2022-10-20

    Fixes

    • (derive) Allow #[command(skip)] to also work with enum variants with a value

    [4.0.17] - 2022-10-18

    Fixes

    • Allow using Arg::last(true) with Arg::value_hint(ValueHint::CommandWithArguments)

    [4.0.16] - 2022-10-18

    Fixes

    • Arg::exclusive(true) should not be exclusive with the argument's own ArgGroup

    [4.0.15] - 2022-10-13

    ... (truncated)

    Commits
    • 95144b7 chore: Release
    • 20ecae1 docs: Update changelog
    • e6a3529 Merge pull request #4474 from epage/utf8
    • e9cbed3 fix(parser): Don't panic on invalid UTF-8 values
    • 45d26e0 test(parser): Show UTF8 bug
    • 4d69e56 Merge pull request #4471 from epage/assert
    • ec03972 test(assert): Verify empty positional assert exists
    • 0d27188 Merge pull request #4465 from epage/help
    • 9376a57 fix(help): Clarify that 'help' command accepts multiple
    • 6cbe5c4 chore: Release
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    dependencies 
    opened by dependabot[bot] 1
  • chore(deps): Update clap requirement from 3.2.22 to 4.0.22

    chore(deps): Update clap requirement from 3.2.22 to 4.0.22

    Updates the requirements on clap to permit the latest version.

    Release notes

    Sourced from clap's releases.

    v4.0.22

    [4.0.22] - 2022-11-07

    Fixes

    • (help) Don't overflow into next-line-help early due to stale (pre-v4) padding calculations
    Changelog

    Sourced from clap's changelog.

    [4.0.22] - 2022-11-07

    Fixes

    • (help) Don't overflow into next-line-help early due to stale (pre-v4) padding calculations

    [4.0.21] - 2022-11-07

    Features

    • (derive) long_about and long_help attributes, without a value, force using doc comment (before it wouldn't be set if there wasn't anything different than the short help)

    [4.0.20] - 2022-11-07

    Fixes

    • (derive) Allow defaulted value parser for '()' fields

    [4.0.19] - 2022-11-04

    Features

    • ColorChoice now implements ValueEnum

    [4.0.18] - 2022-10-20

    Fixes

    • (derive) Allow #[command(skip)] to also work with enum variants with a value

    [4.0.17] - 2022-10-18

    Fixes

    • Allow using Arg::last(true) with Arg::value_hint(ValueHint::CommandWithArguments)

    [4.0.16] - 2022-10-18

    Fixes

    • Arg::exclusive(true) should not be exclusive with the argument's own ArgGroup

    [4.0.15] - 2022-10-13

    Fixes

    • (error) Don't suggest -- when it doesn't help
    • (error) Be more consistent in quoting, punctuation, and indentation in errors

    [4.0.14] - 2022-10-12

    ... (truncated)

    Commits
    • 6cbe5c4 chore: Release
    • d2739c9 docs: Update changelog
    • eaa6bfe Merge pull request #4463 from epage/help
    • dfe9e73 fix(help): Update auto-next-line to use new padding
    • 539577d refactor(help): Remove dead code
    • bc457b1 chore: Release
    • d5c3c13 docs: Update changelog
    • 87edc19 Merge pull request #4461 from epage/help
    • c37ab6c fix(derive): Allow 'long_help' to force populating from doc comment
    • 8751152 test(derive): Verify long_help behavior
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    dependencies 
    opened by dependabot[bot] 1
  • chore(deps): Update clap requirement from 3.2.22 to 4.0.18

    chore(deps): Update clap requirement from 3.2.22 to 4.0.18

    Updates the requirements on clap to permit the latest version.

    Release notes

    Sourced from clap's releases.

    v4.0.18

    [4.0.18] - 2022-10-20

    Fixes

    • (derive) Allow #[command(skip)] to also work with enum variants with a value
    Changelog

    Sourced from clap's changelog.

    [4.0.18] - 2022-10-20

    Fixes

    • (derive) Allow #[command(skip)] to also work with enum variants with a value

    [4.0.17] - 2022-10-18

    Fixes

    • Allow using Arg::last(true) with Arg::value_hint(ValueHint::CommandWithArguments)

    [4.0.16] - 2022-10-18

    Fixes

    • Arg::exclusive(true) should not be exclusive with the argument's own ArgGroup

    [4.0.15] - 2022-10-13

    Fixes

    • (error) Don't suggest -- when it doesn't help
    • (error) Be more consistent in quoting, punctuation, and indentation in errors

    [4.0.14] - 2022-10-12

    Fixes

    • Only put ArgGroup in ArgMatches when explicitly specified, fixing derives handling of option-flattened fields (#4375)

    [4.0.13] - 2022-10-11

    Features

    • (derive) Allow () for fields to mean "don't read" (#4371)

    [4.0.12] - 2022-10-10

    Features

    • Added TypedValueParser::try_map for when adapting an existing TypedValueParser can fail
    • (error) Create errors like clap with Error::new, Error::with_cmd, and Error::insert

    [4.0.11] - 2022-10-09

    Fixes

    • (help) Fix wrapping calculations with ANSI escape codes

    ... (truncated)

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    dependencies 
    opened by dependabot[bot] 1
  • chore(deps): Update clap requirement from 3.2.22 to 4.0.17

    chore(deps): Update clap requirement from 3.2.22 to 4.0.17

    Updates the requirements on clap to permit the latest version.

    Release notes

    Sourced from clap's releases.

    v4.0.17

    [4.0.17] - 2022-10-18

    Fixes

    • Allow using Arg::last(true) with Arg::value_hint(ValueHint::CommandWithArguments)
    Changelog

    Sourced from clap's changelog.

    [4.0.17] - 2022-10-18

    Fixes

    • Allow using Arg::last(true) with Arg::value_hint(ValueHint::CommandWithArguments)

    [4.0.16] - 2022-10-18

    Fixes

    • Arg::exclusive(true) should not be exclusive with the argument's own ArgGroup

    [4.0.15] - 2022-10-13

    Fixes

    • (error) Don't suggest -- when it doesn't help
    • (error) Be more consistent in quoting, punctuation, and indentation in errors

    [4.0.14] - 2022-10-12

    Fixes

    • Only put ArgGroup in ArgMatches when explicitly specified, fixing derives handling of option-flattened fields (#4375)

    [4.0.13] - 2022-10-11

    Features

    • (derive) Allow () for fields to mean "don't read" (#4371)

    [4.0.12] - 2022-10-10

    Features

    • Added TypedValueParser::try_map for when adapting an existing TypedValueParser can fail
    • (error) Create errors like clap with Error::new, Error::with_cmd, and Error::insert

    [4.0.11] - 2022-10-09

    Fixes

    • (help) Fix wrapping calculations with ANSI escape codes

    [4.0.10] - 2022-10-05

    Features

    • (derive) Support #[arg(flatten)] on Option types (#4211, #4350)

    ... (truncated)

    Commits
    • b9dfbbf chore: Release
    • a6c8f6a docs: Update changelog
    • e11afa2 Merge pull request #4401 from epage/last
    • 1ead5ef fix(complete): Support last(true) with CommandWithArguments
    • e50a11a Merge pull request #4399 from j-browne/link-fix
    • a1d4476 Fix a broken link in ValueEnum docs
    • cbb05d5 chore: Release
    • b77bd0c docs: Update changelog
    • 466b6f8 Merge pull request #4397 from epage/exclusive
    • 45dcf0e fix(parser): Don't make Args exclusive with their ArgGroup
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    dependencies 
    opened by dependabot[bot] 1
  • chore(deps): Update clap requirement from 3.2.22 to 4.0.32

    chore(deps): Update clap requirement from 3.2.22 to 4.0.32

    Updates the requirements on clap to permit the latest version.

    Release notes

    Sourced from clap's releases.

    v4.0.32

    [4.0.32] - 2022-12-22

    Fixes

    • (parser) When overriding required(true), consider args that conflict with its group
    Changelog

    Sourced from clap's changelog.

    [4.0.32] - 2022-12-22

    Fixes

    • (parser) When overriding required(true), consider args that conflict with its group

    [4.0.31] - 2022-12-22

    Performance

    • Speed up parsing when a lot of different flags are present (100 unique flags)

    [4.0.30] - 2022-12-21

    Fixes

    • (error) Improve error for args_conflicts_with_subcommand

    [4.0.29] - 2022-11-29

    [4.0.28] - 2022-11-29

    Fixes

    • Fix wasm support which was broken in 4.0.27

    [4.0.27] - 2022-11-24

    Features

    • Have Arg::value_parser accept Vec<impl Into<PossibleValue>>
    • Implement Display and FromStr for ColorChoice

    Fixes

    • Remove soundness issue by switching from atty to is-terminal

    [4.0.26] - 2022-11-16

    Fixes

    • (error) Fix typos in ContextKind::as_str

    [4.0.25] - 2022-11-15

    Features

    • (error) Report available subcommands when required subcommand is missing

    [4.0.24] - 2022-11-14

    ... (truncated)

    Commits
    • ec4ccf0 chore: Release
    • 13fdb83 docs: Update changelog
    • b877345 Merge pull request #4573 from epage/conflict
    • 85ecb3e fix(parser): Override required when parent group has conflict
    • d145b8b test(parser): Demonstrate required-overload bug
    • 0eccd55 chore: Release
    • 1e37c25 docs: Update changelog
    • dcd5fec Merge pull request #4572 from epage/group
    • dde22e7 style: Update for latest clippy
    • dd8435d perf(parser): Reduce duplicate lookups
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    dependencies 
    opened by dependabot[bot] 0
  • chore(deps): Update env_logger requirement from 0.9.0 to 0.10.0

    chore(deps): Update env_logger requirement from 0.9.0 to 0.10.0

    Updates the requirements on env_logger to permit the latest version.

    Changelog

    Sourced from env_logger's changelog.

    0.10.0 - 2022-11-24

    MSRV changed to 1.60 to hide optional dependencies

    Fixes

    • Resolved soundness issue by switching from atty to is-terminal

    Breaking Changes

    To open room for changing dependencies:

    • Renamed termcolor feature to color
    • Renamed atty feature to auto-color

    0.9.3 - 2022-11-07

    • Fix a regression from v0.9.2 where env_logger would fail to compile with the termcolor feature turned off.

    0.9.2 - 2022-11-07

    • Fix and un-deprecate Target::Pipe, which was basically not working at all before and deprecated in 0.9.1.

    0.9.0 -- 2022-07-14

    Breaking Changes

    • Default message format now prints the target instead of the module

    Improvements

    • Added a method to print the module instead of the target
    Commits

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    dependencies 
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