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add environment variable for writing tracing information to a file #52

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merged 1 commit into from
Oct 30, 2018
Merged

add environment variable for writing tracing information to a file #52

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13 changes: 12 additions & 1 deletion oldlog.go
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@ import (
"sync"

tracer "github.com/ipfs/go-log/tracer"
lwriter "github.com/ipfs/go-log/writer"

colorable "github.com/mattn/go-colorable"
opentrace "github.com/opentracing/opentracing-go"
Expand Down Expand Up @@ -36,7 +37,8 @@ const (
envLogging = "IPFS_LOGGING"
envLoggingFmt = "IPFS_LOGGING_FMT"

envLoggingFile = "GOLOG_FILE" // /path/to/file
envLoggingFile = "GOLOG_FILE" // /path/to/file
envTracingFile = "GOLOG_TRACING_FILE" // /path/to/file
)

// ErrNoSuchLogger is returned when the util pkg is asked for a non existant logger
Expand Down Expand Up @@ -93,6 +95,15 @@ func SetupLogging() {
opentrace.SetGlobalTracer(lgblTracer)

SetAllLoggers(lvl)

if tracingfp := os.Getenv(envTracingFile); len(tracingfp) > 0 {
f, err := os.Create(tracingfp)
if err != nil {
log.Error("failed to create tracing file: %s", tracingfp)
} else {
lwriter.WriterGroup.AddWriter(f)
}
}
}

// SetDebugLogging calls SetAllLoggers with logging.DEBUG
Expand Down