v0.1.9

Changelog

Bug fixes

• 2b0f69a: fix: minor typo in grayscale conversion (#17) (@CannibalVox)

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v0.1.8

Changelog

Bug fixes

• d632863: fix: properly handle missing SGR parameters (@aymanbagabas)

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v0.1.6

Changelog

New Features

• 71c737f: feat: windows has colors support (@aymanbagabas)

Bug fixes

• 5de2f41: fix: windows terminal tests (@aymanbagabas)

Other work

• 4a6ae41: refactor: tidy up envColorProfile (@aymanbagabas)

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v0.1.5

Changelog

Bug fixes

• efbe4af: fix: windows terminal supports truecolor (@aymanbagabas)

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v0.1.4

Changelog

New Features

• 9dc35d3: feat(ci): add lint-sync workflow (@aymanbagabas)

Bug fixes

• 480949a: fix(ci): add permissions to lint-sync.yml (@aymanbagabas)
• 6118ca4: fix: ensure we're extracting the value from the Param (@aymanbagabas)
• 85a93f2: fix: tidy and refactor writer.go (@aymanbagabas)

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v0.1.3

Changelog

Bug fixes

• 539a7e6: fix: extract color param from ansi.Param (#5) (@aymanbagabas)

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v0.1.2

Changelog

New Features

• 09dc63f: feat(ci): use shared workflows (#4) (@aymanbagabas)

Documentation updates

• 7cb9a31: docs: add license (@aymanbagabas)

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v0.1.1

Changelog

New Features

• 274a6e8: feat: use go1.18 (@aymanbagabas)

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v0.1.0

Colorprofile

A simple, powerful—and at times magical—package for detecting terminal color
profiles and performing color (and CSI) degradation.

Detecting the terminal’s color profile

Detecting the terminal’s color profile is easy.

import "github.com/charmbracelet/colorprofile"

// Detect the color profile. If you’re planning on writing to stderr you'd want
// to use os.Stderr instead.
p := colorprofile.Detect(os.Stdout, os.Environ())

// Comment on the profile.
fmt.Printf("You know, your colors are quite %s.", func() string {
    switch p {
    case colorprofile.TrueColor:
        return "fancy"
    case colorprofile.ANSI256:
        return "1990s fancy"
    case colorprofile.ANSI:
        return "normcore"
    case colorprofile.Ascii:
        return "ancient"
    case colorprofile.NoTTY:
        return "naughty!"
    }
    return "...IDK" // this should never happen
}())

Downsampling colors

When necessary, colors can be downsampled to a given profile, or manually
downsampled to a specific profile.

p := colorprofile.Detect(os.Stdout, os.Environ())
c := color.RGBA{0x6b, 0x50, 0xff, 0xff} // #6b50ff

// Downsample to the detected profile, when necessary.
convertedColor := p.Convert(c)

// Or manually convert to a given profile.
ansi256Color := colorprofile.ANSI256.Convert(c)
ansiColor := colorprofile.ANSI.Convert(c)
noColor := colorprofile.Ascii.Convert(c)
noANSI := colorprofile.NoTTY.Convert(c)

Automatic downsampling with a Writer

You can also magically downsample colors in ANSI output, when necessary. If
output is not a TTY ANSI will be dropped entirely.

myFancyANSI := "\x1b[38;2;107;80;255mCute \x1b[1;3mpuppy!!\x1b[m"

// Automatically downsample for the terminal at stdout.
w := colorprofile.NewWriter(os.Stdout, os.Environ())
fmt.Fprintf(w, myFancyANSI)

// Downsample to 4-bit ANSI.
w.Profile = colorprofile.ANSI
fmt.Fprintf(w, myFancyANSI)

// Ascii-fy, no colors.
w.Profile = colorprofile.Ascii
fmt.Fprintf(w, myFancyANSI)

// Strip ANSI altogether.
w.Profile = colorprofile.NoTTY
fmt.Fprintf(w, myFancyANSI) // not as fancy

Changelog

New Features

• ef35ba7: feat(ci): use codecove instead of coverall for coverage (@aymanbagabas)
• f35fac6: feat: add examples (@aymanbagabas)
• 674752d: feat: add writer benchmark test (@aymanbagabas)

Bug fixes

• bf81bf3: fix(ci): codecov token (@aymanbagabas)
• 383e9bc: fix(ci): coverage workflow (@aymanbagabas)
• d551e7a: fix: remove helper functions from writer.go (@aymanbagabas)

Documentation updates

• 4a4ff4a: docs(readme): tidy badges (@meowgorithm)
• d96fcae: docs(readme): update footer (@meowgorithm)
• 0bf1814: docs: adjust readme and add example (#2) (@meowgorithm)
• 9298b53: docs: fix and add ascii example (@aymanbagabas)

Other work

• 981b4a8: perf: improve writer performance by using ansi.Style (@aymanbagabas)
• f8f1fbf: refactor: rename exported functions to be more idiomatic (@aymanbagabas)
• ab88f30: refactor: rename profile_writer.go to writer.go (@aymanbagabas)

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