56 lines
1.4 KiB
Go
56 lines
1.4 KiB
Go
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package cmd
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import (
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"github.com/qiniu/goc/v2/pkg/log"
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"github.com/spf13/cobra"
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"golang.org/x/tools/cover"
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"k8s.io/test-infra/gopherage/pkg/cov"
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"k8s.io/test-infra/gopherage/pkg/util"
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)
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var mergeCmd = &cobra.Command{
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Use: "merge [files...]",
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Short: "Merge multiple coherent Go coverage files into a single file.",
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Long: `merge will merge multiple Go coverage files into a single coverage file.
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merge requires that the files are 'coherent', meaning that if they both contain references to the
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same paths, then the contents of those source files were identical for the binary that generated
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each file.
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`,
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Run: func(cmd *cobra.Command, args []string) {
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runMerge(args, outputMergeProfile)
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},
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}
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var outputMergeProfile string
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func init() {
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mergeCmd.Flags().StringVarP(&outputMergeProfile, "output", "o", "mergeprofile.cov", "output file")
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rootCmd.AddCommand(mergeCmd)
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}
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func runMerge(args []string, output string) {
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if len(args) == 0 {
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log.Fatalf("Expected at least one coverage file.")
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}
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profiles := make([][]*cover.Profile, len(args))
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for _, path := range args {
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profile, err := util.LoadProfile(path)
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if err != nil {
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log.Fatalf("failed to open %s: %v", path, err)
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}
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profiles = append(profiles, profile)
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}
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merged, err := cov.MergeMultipleProfiles(profiles)
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if err != nil {
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log.Fatalf("failed to merge files: %v", err)
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}
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err = util.DumpProfile(output, merged)
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if err != nil {
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log.Fatalf("fail to dump the merged file: %v", err)
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}
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}
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