mirror of
https://github.com/mikefarah/yq.git
synced 2024-11-12 13:48:06 +00:00
66 lines
2.4 KiB
Go
66 lines
2.4 KiB
Go
package cmd
|
|
|
|
import (
|
|
errors "github.com/pkg/errors"
|
|
"github.com/spf13/cobra"
|
|
)
|
|
|
|
func createReadCmd() *cobra.Command {
|
|
var cmdRead = &cobra.Command{
|
|
Use: "read [yaml_file] [path_expression]",
|
|
Aliases: []string{"r"},
|
|
Short: "yq r [--printMode/-p pv] sample.yaml 'b.e(name==fr*).value'",
|
|
Example: `
|
|
yq read things.yaml 'a.b.c'
|
|
yq r - 'a.b.c' # reads from stdin
|
|
yq r things.yaml 'a.*.c'
|
|
yq r things.yaml 'a.**.c' # deep splat
|
|
yq r things.yaml 'a.(child.subchild==co*).c'
|
|
yq r -d1 things.yaml 'a.array[0].blah'
|
|
yq r things.yaml 'a.array[*].blah'
|
|
yq r -- things.yaml '--key-starting-with-dashes.blah'
|
|
`,
|
|
Long: "Outputs the value of the given path in the yaml file to STDOUT",
|
|
RunE: readProperty,
|
|
}
|
|
cmdRead.PersistentFlags().StringVarP(&docIndex, "doc", "d", "0", "process document index number (0 based, * for all documents)")
|
|
cmdRead.PersistentFlags().StringVarP(&printMode, "printMode", "p", "v", "print mode (v (values, default), p (paths), pv (path and value pairs)")
|
|
cmdRead.PersistentFlags().StringVarP(&defaultValue, "defaultValue", "D", "", "default value printed when there are no results")
|
|
cmdRead.PersistentFlags().BoolVarP(&collectIntoArray, "collect", "c", false, "collect results into array")
|
|
cmdRead.PersistentFlags().BoolVarP(&unwrapScalar, "unwrapScalar", "", true, "unwrap scalar, print the value with no quotes, colors or comments")
|
|
cmdRead.PersistentFlags().BoolVarP(&stripComments, "stripComments", "", false, "print yaml without any comments")
|
|
cmdRead.PersistentFlags().BoolVarP(&explodeAnchors, "explodeAnchors", "X", false, "explode anchors")
|
|
cmdRead.PersistentFlags().BoolVarP(&exitStatus, "exitStatus", "e", false, "set exit status if no matches are found")
|
|
return cmdRead
|
|
}
|
|
|
|
func readProperty(cmd *cobra.Command, args []string) error {
|
|
var path = ""
|
|
|
|
if len(args) < 1 {
|
|
return errors.New("Must provide filename")
|
|
} else if len(args) > 1 {
|
|
path = args[1]
|
|
}
|
|
|
|
var updateAll, docIndexInt, errorParsingDocIndex = parseDocumentIndex()
|
|
if errorParsingDocIndex != nil {
|
|
return errorParsingDocIndex
|
|
}
|
|
|
|
matchingNodes, errorReadingStream := readYamlFile(args[0], path, updateAll, docIndexInt)
|
|
|
|
if exitStatus && len(matchingNodes) == 0 {
|
|
cmd.SilenceUsage = true
|
|
return errors.New("No matches found")
|
|
}
|
|
|
|
if errorReadingStream != nil {
|
|
cmd.SilenceUsage = true
|
|
return errorReadingStream
|
|
}
|
|
out := cmd.OutOrStdout()
|
|
|
|
return printResults(matchingNodes, out)
|
|
}
|