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84 lines
1.6 KiB
84 lines
1.6 KiB
// Package main provides the command line interface.
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//
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package main
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import (
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"fmt"
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"log"
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"os"
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"github.com/pborman/getopt/v2"
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"gerrit.wikimedia.org/r/blubber/config"
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"gerrit.wikimedia.org/r/blubber/docker"
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"gerrit.wikimedia.org/r/blubber/meta"
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)
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const parameters = "config.yaml variant"
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var (
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showHelp = getopt.BoolLong("help", 'h', "show help/usage")
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showVersion = getopt.BoolLong("version", 'v', "show version information")
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policyURI = getopt.StringLong("policy", 'p', "", "policy file URI", "uri")
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)
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func main() {
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getopt.SetParameters(parameters)
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getopt.Parse()
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if *showHelp {
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getopt.Usage()
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os.Exit(1)
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}
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if *showVersion {
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fmt.Println(meta.FullVersion())
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os.Exit(0)
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}
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args := getopt.Args()
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if len(args) < 2 {
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getopt.Usage()
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os.Exit(1)
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}
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cfgPath, variant := args[0], args[1]
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cfg, err := config.ReadConfigFile(cfgPath)
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if err != nil {
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if config.IsValidationError(err) {
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log.Printf("%s is invalid:\n%v", cfgPath, config.HumanizeValidationError(err))
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os.Exit(4)
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} else {
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log.Printf("Error reading %s: %v\n", cfgPath, err)
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os.Exit(2)
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}
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}
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if *policyURI != "" {
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policy, err := config.ReadPolicyFromURI(*policyURI)
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if err != nil {
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log.Printf("Error loading policy from %s: %v\n", *policyURI, err)
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os.Exit(5)
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}
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err = policy.Validate(*cfg)
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if err != nil {
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log.Printf("Configuration fails policy check against:\npolicy: %s\nviolation: %v\n", *policyURI, err)
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os.Exit(6)
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}
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}
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dockerFile, err := docker.Compile(cfg, variant)
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if err != nil {
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log.Printf("Error compiling config: %v\n", err)
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os.Exit(3)
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}
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dockerFile.WriteTo(os.Stdout)
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}
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