add gitleak to cli

cli/config/rule.go

@@ -0,0 +1,43 @@
+package config
+
+import (
+	"regexp"
+)
+
+// Rules contain information that define details on how to detect secrets
+type Rule struct {
+	// Description is the description of the rule.
+	Description string
+
+	// RuleID is a unique identifier for this rule
+	RuleID string
+
+	// Entropy is a float representing the minimum shannon
+	// entropy a regex group must have to be considered a secret.
+	Entropy float64
+
+	// SecretGroup is an int used to extract secret from regex
+	// match and used as the group that will have its entropy
+	// checked if `entropy` is set.
+	SecretGroup int
+
+	// Regex is a golang regular expression used to detect secrets.
+	Regex *regexp.Regexp
+
+	// Path is a golang regular expression used to
+	// filter secrets by path
+	Path *regexp.Regexp
+
+	// Tags is an array of strings used for metadata
+	// and reporting purposes.
+	Tags []string
+
+	// Keywords are used for pre-regex check filtering. Rules that contain
+	// keywords will perform a quick string compare check to make sure the
+	// keyword(s) are in the content being scanned.
+	Keywords []string
+
+	// Allowlist allows a rule to be ignored for specific
+	// regexes, paths, and/or commits
+	Allowlist Allowlist
+}