Kyle Brandt
43d0664340
- Feature Toggle is `promQLScope`.
- Query property is:
"scope": {
"matchers": "{job=~\".*\"}"
}
Misc:
- Also updates drone GO version to address ARM bug https://github.com/golang/go/issues/58425
- Also updates Swagger defs that were causing builds to fail
---------
Co-authored-by: Kevin Minehart <kmineh0151@gmail.com>
53 lines
1.2 KiB
Go
53 lines
1.2 KiB
Go
package models
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import (
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"github.com/prometheus/prometheus/model/labels"
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"github.com/prometheus/prometheus/promql/parser"
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)
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func ApplyQueryScope(rawExpr string, matchers []*labels.Matcher) (string, error) {
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expr, err := parser.ParseExpr(rawExpr)
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if err != nil {
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return "", err
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}
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matcherNamesToIdx := make(map[string]int, len(matchers))
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for i, matcher := range matchers {
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if matcher == nil {
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continue
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}
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matcherNamesToIdx[matcher.Name] = i
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}
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parser.Inspect(expr, func(node parser.Node, nodes []parser.Node) error {
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switch v := node.(type) {
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case *parser.VectorSelector:
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found := make([]bool, len(matchers))
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for _, matcher := range v.LabelMatchers {
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if matcher == nil || matcher.Name == "__name__" { // const prob
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continue
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}
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if _, ok := matcherNamesToIdx[matcher.Name]; ok {
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found[matcherNamesToIdx[matcher.Name]] = true
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newM := matchers[matcherNamesToIdx[matcher.Name]]
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matcher.Name = newM.Name
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matcher.Type = newM.Type
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matcher.Value = newM.Value
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}
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}
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for i, f := range found {
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if f {
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continue
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}
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v.LabelMatchers = append(v.LabelMatchers, matchers[i])
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}
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return nil
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default:
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return nil
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}
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})
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return expr.String(), nil
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}
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