mirror of
https://github.com/docker/compose.git
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86 lines
1.8 KiB
Go
86 lines
1.8 KiB
Go
/*
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Copyright 2020 Docker Compose CLI authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package formatter
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import (
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"fmt"
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"strconv"
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)
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var names = []string{
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"grey",
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"red",
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"green",
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"yellow",
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"blue",
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"magenta",
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"cyan",
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"white",
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}
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// colorFunc use ANSI codes to render colored text on console
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type colorFunc func(s string) string
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var monochrome = func(s string) string {
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return s
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}
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func ansiColor(code, s string) string {
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return fmt.Sprintf("%s%s%s", ansi(code), s, ansi("0"))
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}
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func ansi(code string) string {
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return fmt.Sprintf("\033[%sm", code)
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}
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func makeColorFunc(code string) colorFunc {
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return func(s string) string {
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return ansiColor(code, s)
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}
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}
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var loop = make(chan colorFunc)
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func init() {
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colors := map[string]colorFunc{}
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for i, name := range names {
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colors[name] = makeColorFunc(strconv.Itoa(30 + i))
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colors["intense_"+name] = makeColorFunc(strconv.Itoa(30+i) + ";1")
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}
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go func() {
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i := 0
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rainbow := []colorFunc{
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colors["cyan"],
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colors["yellow"],
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colors["green"],
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colors["magenta"],
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colors["blue"],
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colors["intense_cyan"],
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colors["intense_yellow"],
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colors["intense_green"],
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colors["intense_magenta"],
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colors["intense_blue"],
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}
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for {
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loop <- rainbow[i]
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i = (i + 1) % len(rainbow)
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}
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}()
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}
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