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89e93d90b3
Merge branch 'master' into use-glamour select Glamour Theme based on BackgroundColor Merge branch 'master' into use-glamour Merge branch 'master' into use-glamour update termev update go.mod label color colorate use glamour for issue content Vendor: Add glamour Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com> Co-authored-by: 6543 <6543@obermui.de> Reviewed-on: https://gitea.com/gitea/tea/pulls/181 Reviewed-by: techknowlogick <techknowlogick@gitea.io> Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
93 lines
2.2 KiB
Go
93 lines
2.2 KiB
Go
package termenv
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import (
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"errors"
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"os"
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"github.com/mattn/go-isatty"
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)
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var (
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ErrStatusReport = errors.New("unable to retrieve status report")
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)
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type Profile int
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const (
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CSI = "\x1b["
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Ascii = Profile(iota)
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ANSI
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ANSI256
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TrueColor
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)
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// ColorProfile returns the supported color profile:
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// Ascii, ANSI, ANSI256, or TrueColor.
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func ColorProfile() Profile {
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if !isatty.IsTerminal(os.Stdout.Fd()) {
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return Ascii
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}
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return colorProfile()
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}
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// ForegroundColor returns the terminal's default foreground color.
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func ForegroundColor() Color {
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if !isatty.IsTerminal(os.Stdout.Fd()) {
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return NoColor{}
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}
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return foregroundColor()
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}
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// BackgroundColor returns the terminal's default background color.
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func BackgroundColor() Color {
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if !isatty.IsTerminal(os.Stdout.Fd()) {
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return NoColor{}
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}
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return backgroundColor()
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}
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// HasDarkBackground returns whether terminal uses a dark-ish background.
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func HasDarkBackground() bool {
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c := ConvertToRGB(BackgroundColor())
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_, _, l := c.Hsl()
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return l < 0.5
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}
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// EnvNoColor returns true if the environment variables explicitly disable color output
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// by setting NO_COLOR (https://no-color.org/)
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// or CLICOLOR/CLICOLOR_FORCE (https://bixense.com/clicolors/)
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// If NO_COLOR is set, this will return true, ignoring CLICOLOR/CLICOLOR_FORCE
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// If CLICOLOR=="0", it will be true only if CLICOLOR_FORCE is also "0" or is unset.
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func EnvNoColor() bool {
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return os.Getenv("NO_COLOR") != "" || (os.Getenv("CLICOLOR") == "0" && !cliColorForced())
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}
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// EnvColorProfile returns the color profile based on environment variables set
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// Supports NO_COLOR (https://no-color.org/)
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// and CLICOLOR/CLICOLOR_FORCE (https://bixense.com/clicolors/)
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// If none of these environment variables are set, this behaves the same as ColorProfile()
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// It will return the Ascii color profile if EnvNoColor() returns true
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// If the terminal does not support any colors, but CLICOLOR_FORCE is set and not "0"
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// then the ANSI color profile will be returned.
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func EnvColorProfile() Profile {
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if EnvNoColor() {
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return Ascii
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}
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p := ColorProfile()
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if cliColorForced() && p == Ascii {
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return ANSI
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}
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return p
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}
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func cliColorForced() bool {
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if forced := os.Getenv("CLICOLOR_FORCE"); forced != "" {
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return forced != "0"
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}
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return false
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}
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