grafana/pkg/build/cmd/verifydrone.go
2023-08-30 18:46:47 +03:00

126 lines
2.6 KiB
Go

package main
import (
"errors"
"flag"
"fmt"
"io"
"log"
"os"
"github.com/drone/drone-cli/drone/lint"
"github.com/drone/drone-cli/drone/starlark"
"github.com/google/go-cmp/cmp"
cliv1 "github.com/urfave/cli"
"github.com/urfave/cli/v2"
"gopkg.in/yaml.v3"
"github.com/grafana/grafana/pkg/build/fsutil"
)
func VerifyDrone(c *cli.Context) error {
const yml = ".drone.yml"
const backup = ".drone.yml.bak"
if err := fsutil.CopyFile(yml, backup); err != nil {
return cli.Exit(fmt.Sprintf("failed to copy %s to %s: %s", yml, backup, err), 1)
}
defer func() {
if err := os.Remove(yml); err != nil {
log.Printf("Failed to rename %s to %s", backup, yml)
}
if err := os.Rename(backup, yml); err != nil {
log.Printf("Failed to rename %s to %s", backup, yml)
}
}()
flags := &flag.FlagSet{}
for _, flag := range starlark.Command.Flags {
flag.Apply(flags)
}
if err := flags.Set("format", "true"); err != nil {
return err
}
cStarlark := cliv1.NewContext(cliv1.NewApp(), flags, nil)
action := starlark.Command.Action.(func(*cliv1.Context))
action(cStarlark)
if err := verifyYAML(yml, backup); err != nil {
return err
}
flags = &flag.FlagSet{}
for _, flag := range lint.Command.Flags {
flag.Apply(flags)
}
err := flags.Set("trusted", "true")
if err != nil {
return err
}
cLint := cliv1.NewContext(cliv1.NewApp(), flags, nil)
actionE := lint.Command.Action.(func(*cliv1.Context) error)
if err := actionE(cLint); err != nil {
return err
}
log.Printf("%s is valid", yml)
return nil
}
func readConfig(fpath string) ([]map[string]any, error) {
//nolint:gosec
f, err := os.Open(fpath)
if err != nil {
return nil, cli.Exit(fmt.Sprintf("failed to read %s: %s", fpath, err), 1)
}
defer func() {
if err := f.Close(); err != nil {
log.Println("error closing file", err)
}
}()
// The YAML stream may contain multiple pipeline configurations, read them all
dec := yaml.NewDecoder(f)
var c []map[string]any
for {
var m map[string]any
if err := dec.Decode(&m); err != nil {
if errors.Is(err, io.EOF) {
break
}
return nil, cli.Exit(fmt.Sprintf("Failed to decode %s: %s", fpath, err), 1)
}
if m["kind"] == "signature" {
log.Printf("Ignoring a signature")
continue
}
c = append(c, m)
}
return c, nil
}
func verifyYAML(yml, backup string) error {
log.Printf("Comparing %s and %s", yml, backup)
c1, err := readConfig(yml)
if err != nil {
return err
}
c2, err := readConfig(backup)
if err != nil {
return err
}
if !cmp.Equal(c1, c2) {
return cli.Exit(fmt.Sprintf("%s is out of sync with .drone.star - regenerate it with drone starlark convert",
yml), 1)
}
return nil
}