93 lines
1.8 KiB
Go
93 lines
1.8 KiB
Go
package command
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import (
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"fmt"
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"io"
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"os"
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"strings"
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"github.com/hashicorp/nomad/jobspec"
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)
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type ValidateCommand struct {
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Meta
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// The fields below can be overwritten for tests
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testStdin io.Reader
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}
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func (c *ValidateCommand) Help() string {
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helpText := `
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Usage: nomad validate [options] <file>
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Checks if a given HCL job file has a valid specification. This can be used to
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check for any syntax errors or validation problems with a job.
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If the supplied path is "-", the jobfile is read from stdin. Otherwise
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it is read from the file at the supplied path.
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`
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return strings.TrimSpace(helpText)
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}
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func (c *ValidateCommand) Synopsis() string {
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return "Checks if a given job specification is valid"
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}
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func (c *ValidateCommand) Run(args []string) int {
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flags := c.Meta.FlagSet("validate", FlagSetNone)
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flags.Usage = func() { c.Ui.Output(c.Help()) }
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if err := flags.Parse(args); err != nil {
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return 1
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}
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// Check that we got exactly one node
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args = flags.Args()
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if len(args) != 1 {
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c.Ui.Error(c.Help())
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return 1
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}
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// Read the Jobfile
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path := args[0]
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var f io.Reader
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switch path {
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case "-":
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if c.testStdin != nil {
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f = c.testStdin
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} else {
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f = os.Stdin
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}
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path = "stdin"
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default:
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file, err := os.Open(path)
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defer file.Close()
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Error opening file %q: %v", path, err))
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return 1
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}
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f = file
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}
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// Parse the JobFile
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job, err := jobspec.Parse(f)
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Error parsing job file from %s: %v", path, err))
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return 1
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}
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// Initialize any fields that need to be.
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job.Canonicalize()
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// Check that the job is valid
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if err := job.Validate(); err != nil {
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c.Ui.Error(fmt.Sprintf("Error validating job: %s", err))
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return 1
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}
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// Done!
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c.Ui.Output("Job validation successful")
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return 0
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}
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