49 lines
1.6 KiB
Go
49 lines
1.6 KiB
Go
package logging
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import (
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"context"
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"fmt"
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"io"
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"strings"
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"golang.org/x/term"
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)
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// LogOperation logs a message that is displayed to the user, and then increases the log indent level.
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func LogOperation(operation func() error, progress io.Writer, ctx context.Context, format string, args ...interface{}) error {
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logOperation(progress, ctx, getIndent(progress), format, args...)
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incIndent(progress)
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defer decIndent(progress)
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return operation()
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}
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// Progress writes a progress message to the given progress writer.
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func Progress(progress io.Writer, ctx context.Context, message string) {
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io.WriteString(progress, message)
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}
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// ProgressF is like progress, but uses fmt.Sprintf()
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func ProgressF(progress io.Writer, ctx context.Context, format string, args ...interface{}) {
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Progress(progress, ctx, fmt.Sprintf(format, args...))
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}
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// LogMessage logs a message that is displayed to the user
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func LogMessage(progress io.Writer, ctx context.Context, format string, args ...interface{}) (int, error) {
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return logOperation(progress, ctx, getIndent(progress), format, args...)
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}
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func logOperation(progress io.Writer, ctx context.Context, indent int, format string, args ...interface{}) (int, error) {
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message := "\033[1m" + strings.Repeat(" ", indent+1) + "=> " + format + "\033[0m\n"
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if !streamIsTerminal(progress) {
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message = " => " + format + "\n"
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}
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return fmt.Fprintf(progress, message, args...)
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}
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// streamIsTerminal checks if stream is a terminal
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func streamIsTerminal(stream any) bool {
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file, ok := stream.(interface{ Fd() uintptr })
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return ok && term.IsTerminal(int(file.Fd()))
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}
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