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Add basic resource trimming command (#41780)
* Add basic trim command * Indent properly * Actually apply defaults if the user asks for it
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@ -214,6 +214,22 @@ so must be recompiled to validate newly-added CUE files.`,
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},
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},
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},
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{
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Name: "trim-resource",
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Usage: "trim schema-specified defaults from a resource",
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Action: runCueCommand(cmd.trimResource),
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Flags: []cli.Flag{
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&cli.StringFlag{
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Name: "dashboard",
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Usage: "path to file containing (valid) dashboard JSON",
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},
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&cli.BoolFlag{
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Name: "apply",
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Usage: "invert the operation: apply defaults instead of trimming them",
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Value: false,
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},
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},
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},
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{
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Name: "gen-ts",
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Usage: "generate TypeScript from all known CUE file types",
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59
pkg/cmd/grafana-cli/commands/trim_command.go
Normal file
59
pkg/cmd/grafana-cli/commands/trim_command.go
Normal file
@ -0,0 +1,59 @@
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package commands
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import (
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"bytes"
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"encoding/json"
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gerrors "errors"
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"fmt"
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"io"
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"os"
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"path/filepath"
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"cuelang.org/go/cue/errors"
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"github.com/grafana/grafana/pkg/cmd/grafana-cli/utils"
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"github.com/grafana/grafana/pkg/schema"
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"github.com/grafana/grafana/pkg/schema/load"
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)
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func (cmd Command) trimResource(c utils.CommandLine) error {
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filename := c.String("dashboard")
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if filename == "" {
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return gerrors.New("must specify dashboard file path with --dashboard")
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}
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apply := c.Bool("apply")
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f, err := os.Open(filepath.Clean(filename))
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if err != nil {
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return err
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}
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b, err := io.ReadAll(f)
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if err != nil {
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return err
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}
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res := schema.Resource{Value: string(b), Name: filename}
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sch, err := load.DistDashboardFamily(paths)
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if err != nil {
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return fmt.Errorf("error while loading dashboard scuemata, err: %w", err)
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}
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var out schema.Resource
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if apply {
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out, err = schema.ApplyDefaults(res, sch.CUE())
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} else {
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out, err = schema.TrimDefaults(res, sch.CUE())
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}
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if err != nil {
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return gerrors.New(errors.Details(err, nil))
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}
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b = []byte(out.Value.(string))
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var buf bytes.Buffer
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err = json.Indent(&buf, b, "", " ")
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if err != nil {
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return err
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}
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fmt.Println(buf.String())
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return nil
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}
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