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30 lines
829 B
Go
30 lines
829 B
Go
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package humanlog
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import (
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"regexp"
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)
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// dcLogsPrefixRe parses out a prefix like 'web_1 | ' from docker-compose
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// The regex exists of five parts:
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// 1. An optional color terminal escape sequence
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// 2. The name of the service
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// 3. Any number of spaces, and a pipe symbol
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// 4. An optional color reset escape sequence
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// 5. The rest of the line
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var dcLogsPrefixRe = regexp.MustCompile("^(?:\x1b\\[\\d+m)?(?P<service_name>[a-zA-Z0-9._-]+)\\s+\\|(?:\x1b\\[0m)? (?P<rest_of_line>.*)$")
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type handler interface {
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TryHandle([]byte) bool
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setField(key, val []byte)
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}
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func tryDockerComposePrefix(d []byte, nextHandler handler) bool {
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if matches := dcLogsPrefixRe.FindSubmatch(d); matches != nil {
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if nextHandler.TryHandle(matches[2]) {
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nextHandler.setField([]byte(`service`), matches[1])
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return true
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}
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}
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return false
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}
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