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author | Bjørn Erik Pedersen <bjorn.erik.pedersen@gmail.com> | 2018-10-24 11:14:51 +0200 |
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committer | Bjørn Erik Pedersen <bjorn.erik.pedersen@gmail.com> | 2018-10-24 13:02:18 +0200 |
commit | deff9e154bc0371af56741ddb22cb1f9e392838a (patch) | |
tree | 81456457be3a9f98a239cc6493ad5003c0b66e7b /common/terminal/colors.go | |
parent | 889aca054a267506a1c7cfaa3992d324764d6358 (diff) |
Add some color to the relevant filenames in terminal log
Fixes #5344
Diffstat (limited to 'common/terminal/colors.go')
-rw-r--r-- | common/terminal/colors.go | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/common/terminal/colors.go b/common/terminal/colors.go new file mode 100644 index 000000000..691173ea8 --- /dev/null +++ b/common/terminal/colors.go @@ -0,0 +1,53 @@ +// Copyright 2018 The Hugo Authors. All rights reserved. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// Package terminal contains helper for the terminal, such as coloring output. +package terminal + +import ( + "fmt" + "os" + "strings" + + isatty "github.com/mattn/go-isatty" +) + +const ( + noticeColor = "\033[1;36m%s\033[0m" +) + +// IsTerminal return true if the file descriptor is terminal and the TERM +// environment variable isn't a dumb one. +func IsTerminal(f *os.File) bool { + fd := f.Fd() + return os.Getenv("TERM") != "dumb" && (isatty.IsTerminal(fd) || isatty.IsCygwinTerminal(fd)) +} + +// Notice colorizes the string in a noticeable color. +func Notice(s string) string { + return colorize(s, noticeColor) +} + +// colorize s in color. +func colorize(s, color string) string { + s = fmt.Sprintf(color, doublePercent(s)) + return singlePercent(s) +} + +func doublePercent(str string) string { + return strings.Replace(str, "%", "%%", -1) +} + +func singlePercent(str string) string { + return strings.Replace(str, "%%", "%", -1) +} |