30 lines
898 B
Go
30 lines
898 B
Go
package logging
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import (
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"strings"
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"github.com/tkw1536/goprogram/stream"
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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, io stream.IOStream, format string, args ...interface{}) error {
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logOperation(io, getIndent(io), format, args...)
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incIndent(io)
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defer decIndent(io)
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return operation()
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}
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// LogMessage logs a message that is displayed to the user
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func LogMessage(io stream.IOStream, format string, args ...interface{}) (int, error) {
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return logOperation(io, getIndent(io), format, args...)
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}
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func logOperation(io stream.IOStream, 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 !io.StdoutIsATerminal() {
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message = " => " + format + "\n"
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}
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return io.Printf(message, args...)
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}
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