podman

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package main
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import (
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	"flag"
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	"fmt"
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	"os"
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	"strings"
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	"github.com/sirupsen/logrus"
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	_ "github.com/vbatts/git-validation/rules/danglingwhitespace"
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	_ "github.com/vbatts/git-validation/rules/dco"
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	_ "github.com/vbatts/git-validation/rules/messageregexp"
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	_ "github.com/vbatts/git-validation/rules/shortsubject"
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	"github.com/vbatts/git-validation/validate"
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)
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var (
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	flCommitRange  = flag.String("range", "", "use this commit range instead (implies -no-travis)")
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	flListRules    = flag.Bool("list-rules", false, "list the rules registered")
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	flRun          = flag.String("run", "", "comma delimited list of rules to run. Defaults to all.")
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	flVerbose      = flag.Bool("v", false, "verbose")
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	flDebug        = flag.Bool("D", false, "debug output")
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	flQuiet        = flag.Bool("q", false, "less output")
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	flDir          = flag.String("d", ".", "git directory to validate from")
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	flNoGithub     = flag.Bool("no-github", false, "disables Github Actions environment checks (when env GITHUB_ACTIONS=true is set)")
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	flNoTravis     = flag.Bool("no-travis", false, "disables travis environment checks (when env TRAVIS=true is set)")
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	flTravisPROnly = flag.Bool("travis-pr-only", true, "when on travis, only run validations if the CI-Build is checking pull-request build")
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)
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func init() {
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	logrus.SetOutput(os.Stderr)
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}
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func main() {
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	flag.Parse()
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	if *flDebug {
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		os.Setenv("DEBUG", "1")
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	}
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	if *flQuiet {
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		os.Setenv("QUIET", "1")
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	}
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	if *flListRules {
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		for _, r := range validate.RegisteredRules {
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			fmt.Printf("%q -- %s\n", r.Name, r.Description)
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		}
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		return
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	}
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	if *flTravisPROnly && strings.ToLower(os.Getenv("TRAVIS_PULL_REQUEST")) == "false" {
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		fmt.Printf("only to check travis PR builds and this not a PR build. yielding.\n")
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		return
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	}
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	// rules to be used
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	var rules []validate.Rule
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	for _, r := range validate.RegisteredRules {
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		// only those that are Default
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		if r.Default {
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			rules = append(rules, r)
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		}
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	}
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	// or reduce the set being run to what the user provided
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	if *flRun != "" {
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		rules = validate.FilterRules(validate.RegisteredRules, validate.SanitizeFilters(*flRun))
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	}
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	if os.Getenv("DEBUG") != "" {
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		logrus.Printf("%#v", rules) // XXX maybe reduce this list
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	}
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	var commitRange = *flCommitRange
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	if commitRange == "" {
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		if strings.ToLower(os.Getenv("TRAVIS")) == "true" && !*flNoTravis {
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			if os.Getenv("TRAVIS_COMMIT_RANGE") != "" {
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				commitRange = strings.Replace(os.Getenv("TRAVIS_COMMIT_RANGE"), "...", "..", 1)
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			} else if os.Getenv("TRAVIS_COMMIT") != "" {
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				commitRange = os.Getenv("TRAVIS_COMMIT")
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			}
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		}
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		// https://docs.github.com/en/actions/reference/environment-variables
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		if strings.ToLower(os.Getenv("GITHUB_ACTIONS")) == "true" && !*flNoGithub {
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			commitRange = fmt.Sprintf("%s..%s", os.Getenv("GITHUB_SHA"), "HEAD")
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		}
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	}
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	logrus.Infof("using commit range: %s", commitRange)
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	runner, err := validate.NewRunner(*flDir, rules, commitRange, *flVerbose)
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	if err != nil {
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		logrus.Fatal(err)
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	}
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	if err := runner.Run(); err != nil {
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		logrus.Fatal(err)
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	}
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	_, fail := runner.Results.PassFail()
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	if fail > 0 {
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		fmt.Printf("%d commits to fix\n", fail)
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		os.Exit(1)
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	}
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}
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