mirror of
https://github.com/mikefarah/yq.git
synced 2024-12-19 20:19:04 +00:00
125 lines
3.6 KiB
Go
125 lines
3.6 KiB
Go
package cmd
|
|
|
|
import (
|
|
"errors"
|
|
"os"
|
|
|
|
"github.com/mikefarah/yq/v4/pkg/yqlib"
|
|
"github.com/spf13/cobra"
|
|
)
|
|
|
|
func createEvaluateAllCommand() *cobra.Command {
|
|
var cmdEvalAll = &cobra.Command{
|
|
Use: "eval-all [expression] [yaml_file1]...",
|
|
Aliases: []string{"ea"},
|
|
Short: "Loads _all_ yaml documents of _all_ yaml files and runs expression once",
|
|
Example: `
|
|
# Merge f2.yml into f1.yml (inplace)
|
|
yq eval-all --inplace 'select(fileIndex == 0) * select(fileIndex == 1)' f1.yml f2.yml
|
|
## the same command and expression using shortened names:
|
|
yq ea -i 'select(fi == 0) * select(fi == 1)' f1.yml f2.yml
|
|
|
|
|
|
# Merge all given files
|
|
yq ea '. as $item ireduce ({}; . * $item )' file1.yml file2.yml ...
|
|
|
|
# Pipe from STDIN
|
|
## use '-' as a filename to pipe from STDIN
|
|
cat file2.yml | yq ea '.a.b' file1.yml - file3.yml
|
|
`,
|
|
Long: `yq is a portable command-line YAML processor (https://github.com/mikefarah/yq/)
|
|
See https://mikefarah.gitbook.io/yq/ for detailed documentation and examples.
|
|
|
|
## Evaluate All ##
|
|
This command loads _all_ yaml documents of _all_ yaml files and runs expression once
|
|
Useful when you need to run an expression across several yaml documents or files (like merge).
|
|
Note that it consumes more memory than eval.
|
|
`,
|
|
RunE: evaluateAll,
|
|
}
|
|
return cmdEvalAll
|
|
}
|
|
func evaluateAll(cmd *cobra.Command, args []string) error {
|
|
// 0 args, read std in
|
|
// 1 arg, null input, process expression
|
|
// 1 arg, read file in sequence
|
|
// 2+ args, [0] = expression, file the rest
|
|
|
|
var err error
|
|
|
|
firstFileIndex, err := initCommand(cmd, args)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
stat, _ := os.Stdin.Stat()
|
|
pipingStdIn := (stat.Mode() & os.ModeCharDevice) == 0
|
|
|
|
out := cmd.OutOrStdout()
|
|
|
|
if writeInplace {
|
|
// only use colors if its forced
|
|
colorsEnabled = forceColor
|
|
writeInPlaceHandler := yqlib.NewWriteInPlaceHandler(args[firstFileIndex])
|
|
out, err = writeInPlaceHandler.CreateTempFile()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
// need to indirectly call the function so that completedSuccessfully is
|
|
// passed when we finish execution as opposed to now
|
|
defer func() { writeInPlaceHandler.FinishWriteInPlace(completedSuccessfully) }()
|
|
}
|
|
|
|
format, err := yqlib.OutputFormatFromString(outputFormat)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
printerWriter := configurePrinterWriter(format, out)
|
|
|
|
printer := yqlib.NewPrinter(printerWriter, format, unwrapScalar, colorsEnabled, indent, !noDocSeparators)
|
|
|
|
if frontMatter != "" {
|
|
frontMatterHandler := yqlib.NewFrontMatterHandler(args[firstFileIndex])
|
|
err = frontMatterHandler.Split()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
args[firstFileIndex] = frontMatterHandler.GetYamlFrontMatterFilename()
|
|
|
|
if frontMatter == "process" {
|
|
reader := frontMatterHandler.GetContentReader()
|
|
printer.SetAppendix(reader)
|
|
defer yqlib.SafelyCloseReader(reader)
|
|
}
|
|
defer frontMatterHandler.CleanUp()
|
|
}
|
|
|
|
allAtOnceEvaluator := yqlib.NewAllAtOnceEvaluator()
|
|
switch len(args) {
|
|
case 0:
|
|
if pipingStdIn {
|
|
err = allAtOnceEvaluator.EvaluateFiles(processExpression(""), []string{"-"}, printer, leadingContentPreProcessing)
|
|
} else {
|
|
cmd.Println(cmd.UsageString())
|
|
return nil
|
|
}
|
|
case 1:
|
|
if nullInput {
|
|
err = yqlib.NewStreamEvaluator().EvaluateNew(processExpression(args[0]), printer, "")
|
|
} else {
|
|
err = allAtOnceEvaluator.EvaluateFiles(processExpression(""), []string{args[0]}, printer, leadingContentPreProcessing)
|
|
}
|
|
default:
|
|
err = allAtOnceEvaluator.EvaluateFiles(processExpression(args[0]), args[1:], printer, leadingContentPreProcessing)
|
|
}
|
|
|
|
completedSuccessfully = err == nil
|
|
|
|
if err == nil && exitStatus && !printer.PrintedAnything() {
|
|
return errors.New("no matches found")
|
|
}
|
|
|
|
return err
|
|
}
|