Pim van Pelt
74448cf6d0
- PauseBackend and ResumeBackend return an error (not bool) when the
backend is disabled, preventing an inconsistent state where the
health state says "paused" but enabled=false.
- DisableBackend and EnableBackend now log uniform backend-transition
lines with from/to instead of separate backend-disable/backend-enable
messages.
- CLI errors strip gRPC boilerplate ("rpc error: code = ... desc = ")
and display the server message in red (when color is enabled). Both
the interactive shell and one-shot mode use the same formatError path.
42 lines
1.1 KiB
Go
42 lines
1.1 KiB
Go
// Copyright (c) 2026, Pim van Pelt <pim@ipng.ch>
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package main
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import "strings"
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const (
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ansiBlue = "\x1b[34m"
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ansiRed = "\x1b[31m"
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ansiReset = "\x1b[0m"
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)
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// colorEnabled is set by the -color flag in main.
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var colorEnabled bool
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// label wraps s in dark-blue ANSI when color output is enabled.
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// Because every label receives the same fixed-length prefix/suffix, tabwriter
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// alignment is preserved: the extra bytes are equal for all rows so relative
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// widths remain correct.
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func label(s string) string {
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if !colorEnabled {
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return s
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}
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return ansiBlue + s + ansiReset
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}
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// formatError returns a user-friendly error string. gRPC status errors are
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// unwrapped to show only the server's message (no "rpc error: code = ..."
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// boilerplate). The result is wrapped in red ANSI when color is enabled.
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func formatError(err error) string {
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msg := err.Error()
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// google.golang.org/grpc/status errors format as:
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// rpc error: code = <Code> desc = <message>
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if i := strings.Index(msg, " desc = "); i >= 0 {
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msg = msg[i+len(" desc = "):]
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}
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if colorEnabled {
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return ansiRed + msg + ansiReset
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}
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return msg
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}
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