549 lines
17 KiB
Go
549 lines
17 KiB
Go
package cmd
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import (
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"bytes"
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"context"
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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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"strings"
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"time"
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"github.com/rs/zerolog"
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"github.com/rs/zerolog/log"
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"github.com/spf13/cobra"
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"github.com/spf13/viper"
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"github.com/zricethezav/gitleaks/v8/config"
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"github.com/zricethezav/gitleaks/v8/detect"
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"github.com/zricethezav/gitleaks/v8/logging"
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"github.com/zricethezav/gitleaks/v8/regexp"
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"github.com/zricethezav/gitleaks/v8/report"
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"github.com/zricethezav/gitleaks/v8/version"
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)
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const banner = `
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○
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│╲
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│ ○
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○ ░
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░ gitleaks
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`
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const configDescription = `config file path
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order of precedence:
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1. --config/-c
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2. env var GITLEAKS_CONFIG
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3. env var GITLEAKS_CONFIG_TOML with the file content
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4. (target path)/.gitleaks.toml
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If none of the four options are used, then gitleaks will use the default config`
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var (
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rootCmd = &cobra.Command{
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Use: "gitleaks",
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Short: "Gitleaks scans code, past or present, for secrets",
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Version: version.Version,
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PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
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// Set the timeout for all the commands
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if timeout, err := cmd.Flags().GetInt("timeout"); err != nil {
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return err
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} else if timeout > 0 {
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ctx, cancel := context.WithTimeout(cmd.Context(), time.Duration(timeout)*time.Second)
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cmd.SetContext(ctx)
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cobra.OnFinalize(cancel)
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}
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return nil
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},
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}
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// diagnostics manager is global to ensure it can be started before a scan begins
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// and stopped after a scan completes
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diagnosticsManager *DiagnosticsManager
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)
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const (
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BYTE = 1.0
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KILOBYTE = BYTE * 1000
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MEGABYTE = KILOBYTE * 1000
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GIGABYTE = MEGABYTE * 1000
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)
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func init() {
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cobra.OnInitialize(initLog)
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rootCmd.PersistentFlags().StringP("config", "c", "", configDescription)
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rootCmd.PersistentFlags().Int("exit-code", 1, "exit code when leaks have been encountered")
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rootCmd.PersistentFlags().StringP("report-path", "r", "", "report file (use \"-\" for stdout)")
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rootCmd.PersistentFlags().StringP("report-format", "f", "", "output format (json, csv, junit, sarif, template)")
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rootCmd.PersistentFlags().StringP("report-template", "", "", "template file used to generate the report (implies --report-format=template)")
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rootCmd.PersistentFlags().StringP("baseline-path", "b", "", "path to baseline with issues that can be ignored")
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rootCmd.PersistentFlags().StringP("log-level", "l", "info", "log level (trace, debug, info, warn, error, fatal)")
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rootCmd.PersistentFlags().BoolP("verbose", "v", false, "show verbose output from scan")
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rootCmd.PersistentFlags().BoolP("no-color", "", false, "turn off color for verbose output")
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rootCmd.PersistentFlags().Int("max-target-megabytes", 0, "files larger than this will be skipped")
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rootCmd.PersistentFlags().BoolP("ignore-gitleaks-allow", "", false, "ignore gitleaks:allow comments")
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rootCmd.PersistentFlags().Uint("redact", 0, "redact secrets from logs and stdout. To redact only parts of the secret just apply a percent value from 0..100. For example --redact=20 (default 100%)")
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rootCmd.Flag("redact").NoOptDefVal = "100"
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rootCmd.PersistentFlags().Bool("no-banner", false, "suppress banner")
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rootCmd.PersistentFlags().StringSlice("enable-rule", []string{}, "only enable specific rules by id")
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rootCmd.PersistentFlags().StringP("gitleaks-ignore-path", "i", ".", "path to .gitleaksignore file or folder containing one")
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rootCmd.PersistentFlags().Int("max-decode-depth", 5, "allow recursive decoding up to this depth")
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rootCmd.PersistentFlags().Int("max-archive-depth", 0, "allow scanning into nested archives up to this depth (default \"0\", no archive traversal is done)")
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rootCmd.PersistentFlags().Int("timeout", 0, "set a timeout for gitleaks commands in seconds (default \"0\", no timeout is set)")
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// Add diagnostics flags
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rootCmd.PersistentFlags().String("diagnostics", "", "enable diagnostics (http OR comma-separated list: cpu,mem,trace). cpu=CPU prof, mem=memory prof, trace=exec tracing, http=serve via net/http/pprof")
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rootCmd.PersistentFlags().String("diagnostics-dir", "", "directory to store diagnostics output files when not using http mode (defaults to current directory)")
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err := viper.BindPFlag("config", rootCmd.PersistentFlags().Lookup("config"))
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if err != nil {
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logging.Fatal().Msgf("err binding config %s", err.Error())
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}
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}
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var logLevel = zerolog.InfoLevel
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func initLog() {
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ll, err := rootCmd.Flags().GetString("log-level")
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if err != nil {
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logging.Fatal().Msg(err.Error())
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}
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switch strings.ToLower(ll) {
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case "trace":
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logLevel = zerolog.TraceLevel
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case "debug":
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logLevel = zerolog.DebugLevel
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case "info":
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logLevel = zerolog.InfoLevel
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case "warn":
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logLevel = zerolog.WarnLevel
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case "err", "error":
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logLevel = zerolog.ErrorLevel
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case "fatal":
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logLevel = zerolog.FatalLevel
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default:
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logging.Warn().Msgf("unknown log level: %s", ll)
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}
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logging.Logger = logging.Logger.Level(logLevel)
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}
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func initConfig(source string) {
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hideBanner, err := rootCmd.Flags().GetBool("no-banner")
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viper.SetConfigType("toml")
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if err != nil {
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logging.Fatal().Msg(err.Error())
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}
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if !hideBanner {
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_, _ = fmt.Fprint(os.Stderr, banner)
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}
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logging.Debug().Msgf("using %s regex engine", regexp.Version)
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cfgPath, err := rootCmd.Flags().GetString("config")
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if err != nil {
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logging.Fatal().Msg(err.Error())
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}
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if cfgPath != "" {
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viper.SetConfigFile(cfgPath)
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logging.Debug().Msgf("using gitleaks config %s from `--config`", cfgPath)
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} else if os.Getenv("GITLEAKS_CONFIG") != "" {
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envPath := os.Getenv("GITLEAKS_CONFIG")
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viper.SetConfigFile(envPath)
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logging.Debug().Msgf("using gitleaks config from GITLEAKS_CONFIG env var: %s", envPath)
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} else if os.Getenv("GITLEAKS_CONFIG_TOML") != "" {
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configContent := []byte(os.Getenv("GITLEAKS_CONFIG_TOML"))
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if err := viper.ReadConfig(bytes.NewBuffer(configContent)); err != nil {
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logging.Fatal().Err(err).Str("content", os.Getenv("GITLEAKS_CONFIG_TOML")).Msg("unable to load gitleaks config from GITLEAKS_CONFIG_TOML env var")
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}
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logging.Debug().Str("content", os.Getenv("GITLEAKS_CONFIG_TOML")).Msg("using gitleaks config from GITLEAKS_CONFIG_TOML env var content")
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return
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} else {
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fileInfo, err := os.Stat(source)
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if err != nil {
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logging.Fatal().Msg(err.Error())
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}
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if !fileInfo.IsDir() {
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logging.Debug().Msgf("unable to load gitleaks config from %s since --source=%s is a file, using default config",
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filepath.Join(source, ".gitleaks.toml"), source)
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if err = viper.ReadConfig(strings.NewReader(config.DefaultConfig)); err != nil {
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logging.Fatal().Msgf("err reading toml %s", err.Error())
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}
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return
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}
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if _, err := os.Stat(filepath.Join(source, ".gitleaks.toml")); os.IsNotExist(err) {
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logging.Debug().Msgf("no gitleaks config found in path %s, using default gitleaks config", filepath.Join(source, ".gitleaks.toml"))
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if err = viper.ReadConfig(strings.NewReader(config.DefaultConfig)); err != nil {
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logging.Fatal().Msgf("err reading default config toml %s", err.Error())
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}
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return
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} else {
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logging.Debug().Msgf("using existing gitleaks config %s from `(--source)/.gitleaks.toml`", filepath.Join(source, ".gitleaks.toml"))
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}
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viper.AddConfigPath(source)
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viper.SetConfigName(".gitleaks")
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}
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if err := viper.ReadInConfig(); err != nil {
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logging.Fatal().Msgf("unable to load gitleaks config, err: %s", err)
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}
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}
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func initDiagnostics() {
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// Initialize diagnostics manager
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diagnosticsFlag, err := rootCmd.PersistentFlags().GetString("diagnostics")
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if err != nil {
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logging.Fatal().Err(err).Msg("Error getting diagnostics flag")
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}
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diagnosticsDir, err := rootCmd.PersistentFlags().GetString("diagnostics-dir")
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if err != nil {
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logging.Fatal().Err(err).Msg("Error getting diagnostics-dir flag")
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}
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var diagErr error
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diagnosticsManager, diagErr = NewDiagnosticsManager(diagnosticsFlag, diagnosticsDir)
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if diagErr != nil {
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logging.Fatal().Err(diagErr).Msg("Error initializing diagnostics")
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}
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if diagnosticsManager.Enabled {
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logging.Info().Msg("Starting diagnostics...")
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if diagErr := diagnosticsManager.StartDiagnostics(); diagErr != nil {
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logging.Fatal().Err(diagErr).Msg("Failed to start diagnostics")
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}
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}
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}
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func Execute() {
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if err := rootCmd.Execute(); err != nil {
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if strings.Contains(err.Error(), "unknown flag") {
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// exit code 126: Command invoked cannot execute
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os.Exit(126)
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}
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logging.Fatal().Msg(err.Error())
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}
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}
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func Config(cmd *cobra.Command) config.Config {
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var vc config.ViperConfig
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if err := viper.Unmarshal(&vc); err != nil {
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logging.Fatal().Err(err).Msg("Failed to load config")
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}
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cfg, err := vc.Translate()
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if err != nil {
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logging.Fatal().Err(err).Msg("Failed to load config")
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}
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cfg.Path, _ = cmd.Flags().GetString("config")
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return cfg
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}
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func Detector(cmd *cobra.Command, cfg config.Config, source string) *detect.Detector {
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var err error
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// Setup common detector
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detector := detect.NewDetectorContext(cmd.Context(), cfg)
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if detector.MaxDecodeDepth, err = cmd.Flags().GetInt("max-decode-depth"); err != nil {
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logging.Fatal().Err(err).Send()
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}
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if detector.MaxArchiveDepth, err = cmd.Flags().GetInt("max-archive-depth"); err != nil {
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logging.Fatal().Err(err).Send()
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}
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// set color flag at first
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if detector.NoColor, err = cmd.Flags().GetBool("no-color"); err != nil {
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logging.Fatal().Err(err).Send()
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}
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// also init logger again without color
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if detector.NoColor {
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logging.Logger = log.Output(zerolog.ConsoleWriter{
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Out: os.Stderr,
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NoColor: detector.NoColor,
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}).Level(logLevel)
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}
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detector.Config.Path, err = cmd.Flags().GetString("config")
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if err != nil {
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logging.Fatal().Err(err).Send()
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}
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// if config path is not set, then use the {source}/.gitleaks.toml path.
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// note that there may not be a `{source}/.gitleaks.toml` file, this is ok.
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if detector.Config.Path == "" {
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detector.Config.Path = filepath.Join(source, ".gitleaks.toml")
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}
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// set verbose flag
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if detector.Verbose, err = cmd.Flags().GetBool("verbose"); err != nil {
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logging.Fatal().Err(err).Send()
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}
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// set redact flag
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if detector.Redact, err = cmd.Flags().GetUint("redact"); err != nil {
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logging.Fatal().Err(err).Send()
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}
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if detector.MaxTargetMegaBytes, err = cmd.Flags().GetInt("max-target-megabytes"); err != nil {
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logging.Fatal().Err(err).Send()
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}
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// set ignore gitleaks:allow flag
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if detector.IgnoreGitleaksAllow, err = cmd.Flags().GetBool("ignore-gitleaks-allow"); err != nil {
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logging.Fatal().Err(err).Send()
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}
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gitleaksIgnorePath, err := cmd.Flags().GetString("gitleaks-ignore-path")
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if err != nil {
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logging.Fatal().Err(err).Msg("could not get .gitleaksignore path")
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}
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if fileExists(gitleaksIgnorePath) {
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if err = detector.AddGitleaksIgnore(gitleaksIgnorePath); err != nil {
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logging.Fatal().Err(err).Msg("could not call AddGitleaksIgnore")
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}
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}
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if fileExists(filepath.Join(gitleaksIgnorePath, ".gitleaksignore")) {
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if err = detector.AddGitleaksIgnore(filepath.Join(gitleaksIgnorePath, ".gitleaksignore")); err != nil {
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logging.Fatal().Err(err).Msg("could not call AddGitleaksIgnore")
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}
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}
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if fileExists(filepath.Join(source, ".gitleaksignore")) {
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if err = detector.AddGitleaksIgnore(filepath.Join(source, ".gitleaksignore")); err != nil {
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logging.Fatal().Err(err).Msg("could not call AddGitleaksIgnore")
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}
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}
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// ignore findings from the baseline (an existing report in json format generated earlier)
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baselinePath, _ := cmd.Flags().GetString("baseline-path")
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if baselinePath != "" {
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err = detector.AddBaseline(baselinePath, source)
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if err != nil {
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logging.Error().Msgf("Could not load baseline. The path must point of a gitleaks report generated using the default format: %s", err)
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}
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}
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// If set, only apply rules that are defined in the flag
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rules, _ := cmd.Flags().GetStringSlice("enable-rule")
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if len(rules) > 0 {
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logging.Info().Msg("Overriding enabled rules: " + strings.Join(rules, ", "))
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ruleOverride := make(map[string]config.Rule)
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for _, ruleName := range rules {
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if r, ok := cfg.Rules[ruleName]; ok {
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ruleOverride[ruleName] = r
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} else {
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logging.Fatal().Msgf("Requested rule %s not found in rules", ruleName)
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}
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}
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detector.Config.Rules = ruleOverride
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}
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// Validate report settings.
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reportPath := mustGetStringFlag(cmd, "report-path")
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if reportPath != "" {
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if reportPath != report.StdoutReportPath {
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// Ensure the path is writable.
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if f, err := os.Create(reportPath); err != nil {
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logging.Fatal().Err(err).Msgf("Report path is not writable: %s", reportPath)
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} else {
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_ = f.Close()
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_ = os.Remove(reportPath)
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}
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}
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// Build report writer.
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var (
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reporter report.Reporter
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reportFormat = mustGetStringFlag(cmd, "report-format")
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reportTemplate = mustGetStringFlag(cmd, "report-template")
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)
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if reportFormat == "" {
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ext := strings.ToLower(filepath.Ext(reportPath))
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switch ext {
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case ".csv":
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reportFormat = "csv"
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case ".json":
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reportFormat = "json"
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case ".sarif":
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reportFormat = "sarif"
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default:
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logging.Fatal().Msgf("Unknown report format: %s", reportFormat)
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}
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logging.Debug().Msgf("No report format specified, inferred %q from %q", reportFormat, ext)
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}
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switch strings.TrimSpace(strings.ToLower(reportFormat)) {
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case "csv":
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reporter = &report.CsvReporter{}
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case "json":
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reporter = &report.JsonReporter{}
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case "junit":
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reporter = &report.JunitReporter{}
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case "sarif":
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reporter = &report.SarifReporter{
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OrderedRules: cfg.GetOrderedRules(),
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}
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case "template":
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if reporter, err = report.NewTemplateReporter(reportTemplate); err != nil {
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logging.Fatal().Err(err).Msg("Invalid report template")
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}
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default:
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logging.Fatal().Msgf("unknown report format %s", reportFormat)
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}
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// Sanity check.
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if reportTemplate != "" && reportFormat != "template" {
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logging.Fatal().Msgf("Report format must be 'template' if --report-template is specified")
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}
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detector.ReportPath = reportPath
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detector.Reporter = reporter
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}
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return detector
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}
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func bytesConvert(bytes uint64) string {
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unit := ""
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value := float32(bytes)
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switch {
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case bytes >= GIGABYTE:
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unit = "GB"
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value = value / GIGABYTE
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case bytes >= MEGABYTE:
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unit = "MB"
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value = value / MEGABYTE
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case bytes >= KILOBYTE:
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unit = "KB"
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value = value / KILOBYTE
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case bytes >= BYTE:
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unit = "bytes"
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case bytes == 0:
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return "0"
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}
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stringValue := strings.TrimSuffix(
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fmt.Sprintf("%.2f", value), ".00",
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)
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return fmt.Sprintf("%s %s", stringValue, unit)
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}
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func findingSummaryAndExit(detector *detect.Detector, findings []report.Finding, exitCode int, start time.Time, err error) {
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if diagnosticsManager.Enabled {
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logging.Debug().Msg("Finalizing diagnostics...")
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diagnosticsManager.StopDiagnostics()
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}
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totalBytes := detector.TotalBytes.Load()
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bytesMsg := fmt.Sprintf("scanned ~%d bytes (%s)", totalBytes, bytesConvert(totalBytes))
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if err == nil {
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logging.Info().Msgf("%s in %s", bytesMsg, FormatDuration(time.Since(start)))
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if len(findings) != 0 {
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logging.Warn().Msgf("leaks found: %d", len(findings))
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} else {
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logging.Info().Msg("no leaks found")
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}
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} else {
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logging.Warn().Msg(bytesMsg)
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logging.Warn().Msgf("partial scan completed in %s", FormatDuration(time.Since(start)))
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if len(findings) != 0 {
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logging.Warn().Msgf("%d leaks found in partial scan", len(findings))
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} else {
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logging.Warn().Msg("no leaks found in partial scan")
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}
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}
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// write report if desired
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if detector.Reporter != nil {
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var (
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file io.WriteCloser
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reportErr error
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)
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if detector.ReportPath == report.StdoutReportPath {
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file = os.Stdout
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} else {
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// Open the file.
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if file, reportErr = os.Create(detector.ReportPath); reportErr != nil {
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goto ReportEnd
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}
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defer func() {
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_ = file.Close()
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}()
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}
|
|
|
|
// Write to the file.
|
|
if reportErr = detector.Reporter.Write(file, findings); reportErr != nil {
|
|
goto ReportEnd
|
|
}
|
|
|
|
ReportEnd:
|
|
if reportErr != nil {
|
|
logging.Fatal().Err(reportErr).Msg("failed to write report")
|
|
}
|
|
}
|
|
|
|
if err != nil {
|
|
os.Exit(1)
|
|
}
|
|
|
|
if len(findings) != 0 {
|
|
os.Exit(exitCode)
|
|
}
|
|
}
|
|
|
|
func fileExists(fileName string) bool {
|
|
// check for a .gitleaksignore file
|
|
info, err := os.Stat(fileName)
|
|
if err != nil && !os.IsNotExist(err) {
|
|
return false
|
|
}
|
|
|
|
if info != nil && err == nil {
|
|
if !info.IsDir() {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
func FormatDuration(d time.Duration) string {
|
|
scale := 100 * time.Second
|
|
// look for the max scale that is smaller than d
|
|
for scale > d {
|
|
scale = scale / 10
|
|
}
|
|
return d.Round(scale / 100).String()
|
|
}
|
|
|
|
func mustGetBoolFlag(cmd *cobra.Command, name string) bool {
|
|
value, err := cmd.Flags().GetBool(name)
|
|
if err != nil {
|
|
logging.Fatal().Err(err).Msgf("could not get flag: %s", name)
|
|
}
|
|
return value
|
|
}
|
|
|
|
func mustGetIntFlag(cmd *cobra.Command, name string) int {
|
|
value, err := cmd.Flags().GetInt(name)
|
|
if err != nil {
|
|
logging.Fatal().Err(err).Msgf("could not get flag: %s", name)
|
|
}
|
|
return value
|
|
}
|
|
|
|
func mustGetStringFlag(cmd *cobra.Command, name string) string {
|
|
value, err := cmd.Flags().GetString(name)
|
|
if err != nil {
|
|
logging.Fatal().Err(err).Msgf("could not get flag: %s", name)
|
|
}
|
|
return value
|
|
}
|