mirror of https://github.com/mikefarah/yq.git
63 lines
2.8 KiB
Go
63 lines
2.8 KiB
Go
package cmd
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import (
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"strings"
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"github.com/mikefarah/yq/v3/pkg/yqlib"
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errors "github.com/pkg/errors"
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"github.com/spf13/cobra"
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)
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func createMergeCmd() *cobra.Command {
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var cmdMerge = &cobra.Command{
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Use: "merge [initial_yaml_file] [additional_yaml_file]...",
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Aliases: []string{"m"},
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Short: "yq m [--inplace/-i] [--doc/-d index] [--overwrite/-x] [--append/-a] sample.yaml sample2.yaml",
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Example: `
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yq merge things.yaml other.yaml
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yq merge --inplace things.yaml other.yaml
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yq m -i things.yaml other.yaml
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yq m --overwrite things.yaml other.yaml
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yq m -i -x things.yaml other.yaml
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yq m -i -a things.yaml other.yaml
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yq m -i --autocreate=false things.yaml other.yaml
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`,
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Long: `Updates the yaml file by adding/updating the path(s) and value(s) from additional yaml file(s).
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Outputs to STDOUT unless the inplace flag is used, in which case the file is updated instead.
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If overwrite flag is set then existing values will be overwritten using the values from each additional yaml file.
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If append flag is set then existing arrays will be merged with the arrays from each additional yaml file.
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`,
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RunE: mergeProperties,
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}
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cmdMerge.PersistentFlags().BoolVarP(&writeInplace, "inplace", "i", false, "update the yaml file inplace")
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cmdMerge.PersistentFlags().BoolVarP(&overwriteFlag, "overwrite", "x", false, "update the yaml file by overwriting existing values")
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cmdMerge.PersistentFlags().BoolVarP(&autoCreateFlag, "autocreate", "c", true, "automatically create any missing entries")
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cmdMerge.PersistentFlags().BoolVarP(&appendFlag, "append", "a", false, "update the yaml file by appending array values")
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cmdMerge.PersistentFlags().BoolVarP(&allowEmptyFlag, "allow-empty", "e", false, "allow empty yaml files")
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cmdMerge.PersistentFlags().StringVarP(&docIndex, "doc", "d", "0", "process document index number (0 based, * for all documents)")
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return cmdMerge
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}
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func mergeProperties(cmd *cobra.Command, args []string) error {
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if len(args) < 2 {
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return errors.New("Must provide at least 2 yaml files")
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}
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// first generate update commands from the file
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var filesToMerge = args[1:]
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var updateCommands []yqlib.UpdateCommand = make([]yqlib.UpdateCommand, 0)
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for _, fileToMerge := range filesToMerge {
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matchingNodes, errorProcessingFile := readYamlFile(fileToMerge, "**", false, 0)
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if errorProcessingFile != nil && (!allowEmptyFlag || !strings.HasPrefix(errorProcessingFile.Error(), "Could not process document index")) {
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return errorProcessingFile
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}
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for _, matchingNode := range matchingNodes {
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mergePath := lib.MergePathStackToString(matchingNode.PathStack, appendFlag)
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updateCommands = append(updateCommands, yqlib.UpdateCommand{Command: "update", Path: mergePath, Value: matchingNode.Node, Overwrite: overwriteFlag})
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}
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}
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return updateDoc(args[0], updateCommands, cmd.OutOrStdout())
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}
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