feat: add issue id to footer if defined on branch name

README.md

@@ -13,7 +13,7 @@ download the latest release and add the binary on your path
 you can config using the environment variables
 
 | Variable                       | description                                                                                                            | default                                                      |
-| ------------------------------ | ---------------------------------------------------------------- | ------------------------------------------------------------ |
+| ------------------------------ | ---------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------ |
 | MAJOR_VERSION_TYPES            | types used to bump major version                                                                                       |                                                              |
 | MINOR_VERSION_TYPES            | types used to bump minor version                                                                                       | feat                                                         |
 | PATCH_VERSION_TYPES            | types used to bump patch version                                                                                       | build,ci,docs,fix,perf,refactor,style,test                   |
@@ -24,6 +24,8 @@ you can config using the environment variables
 | RELEASE_NOTES_TAGS             | release notes headers for each visible type                                                                            | fix:Bug Fixes,feat:Features                                  |
 | VALIDATE_MESSAGE_SKIP_BRANCHES | ignore branches from this list on validate commit message                                                              | master,develop                                               |
 | COMMIT_MESSAGE_TYPES           | list of valid commit types for commit message                                                                          | build,ci,chore,docs,feat,fix,perf,refactor,revert,style,test |
+| ISSUE_KEY_NAME                 | metadata key name used on validate commit message hook to enhance footer, if blank footer will not be added            | jira                                                         |
+| BRANCH_ISSUE_REGEX             | regex to extract issue id from branch name, must have 3 groups (prefix, id, posfix), if blank footer will not be added | ^([a-z]+\\/)?([A-Z]+-[0-9]+)(-.*)?                           |
 
 ### Running
 
@@ -68,6 +70,26 @@ git-sv rn -h
 | validate-commit-message, vcm | use as prepare-commit-message hook to validate commit message | :heavy_check_mark: |
 | help, h                      | Shows a list of commands or help for one command              |        :x:         |
 
+##### Use validate-commit-message as prepare-commit-msg hook
+
+Configure your .git/hooks/prepare-commit-msg
+
+```bash
+#!/bin/sh
+
+COMMIT_MSG_FILE=$1
+COMMIT_SOURCE=$2
+SHA1=$3
+
+git sv vcm --path "$(pwd)" --file $COMMIT_MSG_FILE --source $COMMIT_SOURCE
+```
+
+tip: you can configure a directory as your global git templates using the command below, check [git config docs](https://git-scm.com/docs/git-config#Documentation/git-config.txt-inittemplateDir) for more information!
+
+```bash
+git config --global init.templatedir '<YOUR TEMPLATE DIR>'
+```
+
 ## Development
 
 ### Makefile

cmd/git-sv/config.go

@@ -18,6 +18,8 @@ type Config struct {
 	ReleaseNotesTags            map[string]string `envconfig:"RELEASE_NOTES_TAGS" default:"fix:Bug Fixes,feat:Features"`
 	ValidateMessageSkipBranches []string          `envconfig:"VALIDATE_MESSAGE_SKIP_BRANCHES" default:"master,develop"`
 	CommitMessageTypes          []string          `envconfig:"COMMIT_MESSAGE_TYPES" default:"build,ci,chore,docs,feat,fix,perf,refactor,revert,style,test"`
+	IssueKeyName                string            `envconfig:"ISSUE_KEY_NAME" default:"jira"`
+	BranchIssueRegex            string            `envconfig:"BRANCH_ISSUE_REGEX" default:"^([a-z]+\\/)?([A-Z]+-[0-9]+)(-.*)?"`
 }
 
 func loadConfig() Config {

cmd/git-sv/handlers.go

@@ -255,6 +255,9 @@ func validateCommitMessageHandler(git sv.Git, validateMessageProcessor sv.Valida
 			warn("could not enhance commit message, %s", err.Error())
 			return nil
 		}
+		if msg == "" {
+			return nil
+		}
 
 		if err := appendOnFile(msg, filepath); err != nil {
 			return fmt.Errorf("failed to append meta-informations on footer, error: %s", err.Error())

cmd/git-sv/main.go

@@ -18,7 +18,7 @@ func main() {
 	semverProcessor := sv.NewSemVerCommitsProcessor(cfg.IncludeUnknownTypeAsPatch, cfg.MajorVersionTypes, cfg.MinorVersionTypes, cfg.PatchVersionTypes)
 	releasenotesProcessor := sv.NewReleaseNoteProcessor(cfg.ReleaseNotesTags)
 	outputFormatter := sv.NewOutputFormatter()
-	validateMessageProcessor := sv.NewValidateMessageProcessor(cfg.ValidateMessageSkipBranches, cfg.CommitMessageTypes)
+	validateMessageProcessor := sv.NewValidateMessageProcessor(cfg.ValidateMessageSkipBranches, cfg.CommitMessageTypes, cfg.IssueKeyName, cfg.BranchIssueRegex)
 
 	app := cli.NewApp()
 	app.Name = "sv"

sv/validatemessage.go

@@ -1,6 +1,7 @@
 package sv
 
 import (
+	"bufio"
 	"fmt"
 	"regexp"
 	"strings"
@@ -14,10 +15,12 @@ type ValidateMessageProcessor interface {
 }
 
 // NewValidateMessageProcessor ValidateMessageProcessorImpl constructor
-func NewValidateMessageProcessor(skipBranches, supportedTypes []string) *ValidateMessageProcessorImpl {
+func NewValidateMessageProcessor(skipBranches, supportedTypes []string, issueKeyName, branchIssueRegex string) *ValidateMessageProcessorImpl {
 	return &ValidateMessageProcessorImpl{
 		skipBranches:     skipBranches,
 		supportedTypes:   supportedTypes,
+		issueKeyName:     issueKeyName,
+		branchIssueRegex: branchIssueRegex,
 	}
 }
 
@@ -25,6 +28,8 @@ func NewValidateMessageProcessor(skipBranches, supportedTypes []string) *Validat
 type ValidateMessageProcessorImpl struct {
 	skipBranches     []string
 	supportedTypes   []string
+	issueKeyName     string
+	branchIssueRegex string
 }
 
 // SkipBranch check if branch should be ignored.
@@ -46,8 +51,47 @@ func (p ValidateMessageProcessorImpl) Validate(message string) error {
 
 // Enhance add metadata on commit message.
 func (p ValidateMessageProcessorImpl) Enhance(branch string, message string) (string, error) {
-	//TODO add issue id (branch format on varenv)
+	if p.branchIssueRegex == "" || p.issueKeyName == "" || hasIssueID(message, p.issueKeyName) {
-	return "", nil
+		return "", nil //enhance disabled
+	}
+
+	r, err := regexp.Compile(p.branchIssueRegex)
+	if err != nil {
+		return "", fmt.Errorf("could not compile issue regex: %s, error: %v", p.branchIssueRegex, err.Error())
+	}
+
+	groups := r.FindStringSubmatch(branch)
+	if len(groups) != 4 {
+		return "", fmt.Errorf("could not find issue id group with configured regex")
+	}
+
+	footer := fmt.Sprintf("%s: %s", p.issueKeyName, groups[2])
+
+	if !hasFooter(message) {
+		return "\n" + footer, nil
+	}
+
+	return footer, nil
+}
+
+func hasFooter(message string) bool {
+	r := regexp.MustCompile("^[a-zA-Z-]+: .*|^[a-zA-Z-]+ #.*|^BREAKING CHANGE: .*")
+
+	scanner := bufio.NewScanner(strings.NewReader(message))
+	lines := 0
+	for scanner.Scan() {
+		if lines > 0 && r.MatchString(scanner.Text()) {
+			return true
+		}
+		lines++
+	}
+
+	return false
+}
+
+func hasIssueID(message, issueKeyName string) bool {
+	r := regexp.MustCompile(fmt.Sprintf("(?m)^%s: .+$", issueKeyName))
+	return r.MatchString(message)
 }
 
 func contains(value string, content []string) bool {

sv/validatemessage_test.go

@@ -4,8 +4,46 @@ import (
 	"testing"
 )
 
+var issueRegex = "^([a-z]+\\/)?([A-Z]+-[0-9]+)(-.*)?"
+
+// messages samples start
+var fullMessage = `fix: correct minor typos in code
+
+see the issue for details
+
+on typos fixed.
+
+Reviewed-by: Z
+Refs #133`
+var fullMessageWithJira = `fix: correct minor typos in code
+
+see the issue for details
+
+on typos fixed.
+
+Reviewed-by: Z
+Refs #133
+jira: JIRA-456`
+var fullMessageRefs = `fix: correct minor typos in code
+
+see the issue for details
+
+on typos fixed.
+
+Refs #133`
+var subjectAndBodyMessage = `fix: correct minor typos in code
+
+see the issue for details
+
+on typos fixed.`
+var subjectAndFooterMessage = `refactor!: drop support for Node 6
+
+BREAKING CHANGE: refactor to use JavaScript features not available in Node 6.`
+
+// multiline samples end
+
 func TestValidateMessageProcessorImpl_Validate(t *testing.T) {
-	p := NewValidateMessageProcessor([]string{"develop", "master"}, []string{"feat", "fix"})
+	p := NewValidateMessageProcessor([]string{"develop", "master"}, []string{"feat", "fix"}, "jira", issueRegex)
 
 	tests := []struct {
 		name    string
@@ -37,6 +75,39 @@ func TestValidateMessageProcessorImpl_Validate(t *testing.T) {
 	}
 }
 
+func TestValidateMessageProcessorImpl_Enhance(t *testing.T) {
+	p := NewValidateMessageProcessor([]string{"develop", "master"}, []string{"feat", "fix"}, "jira", issueRegex)
+
+	tests := []struct {
+		name    string
+		branch  string
+		message string
+		want    string
+		wantErr bool
+	}{
+		{"issue on branch name", "JIRA-123", "fix: fix something", "\njira: JIRA-123", false},
+		{"issue on branch name with description", "JIRA-123-some-description", "fix: fix something", "\njira: JIRA-123", false},
+		{"issue on branch name with prefix", "feature/JIRA-123", "fix: fix something", "\njira: JIRA-123", false},
+		{"with footer", "JIRA-123", fullMessage, "jira: JIRA-123", false},
+		{"with issue on footer", "JIRA-123", fullMessageWithJira, "", false},
+		{"issue on branch name with prefix and description", "feature/JIRA-123-some-description", "fix: fix something", "\njira: JIRA-123", false},
+		{"no issue on branch name", "branch", "fix: fix something", "", true},
+		{"unexpected branch name", "feature /JIRA-123", "fix: fix something", "", true},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := p.Enhance(tt.branch, tt.message)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("ValidateMessageProcessorImpl.Enhance() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+			if got != tt.want {
+				t.Errorf("ValidateMessageProcessorImpl.Enhance() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
 func Test_firstLine(t *testing.T) {
 	tests := []struct {
 		name  string
@@ -58,3 +129,51 @@ func Test_firstLine(t *testing.T) {
 		})
 	}
 }
+
+func Test_hasIssueID(t *testing.T) {
+	tests := []struct {
+		name         string
+		message      string
+		issueKeyName string
+		want         bool
+	}{
+		{"single line without issue", "feat: something", "jira", false},
+		{"multi line without issue", `feat: something
+		
+yay`, "jira", false},
+		{"multi line without jira issue", `feat: something
+		
+jira1: JIRA-123`, "jira", false},
+		{"multi line with issue", `feat: something
+		
+jira: JIRA-123`, "jira", true},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := hasIssueID(tt.message, tt.issueKeyName); got != tt.want {
+				t.Errorf("hasIssueID() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+func Test_hasFooter(t *testing.T) {
+	tests := []struct {
+		name    string
+		message string
+		want    bool
+	}{
+		{"simple message", "feat: add something", false},
+		{"full messsage", fullMessage, true},
+		{"full messsage with refs", fullMessageRefs, true},
+		{"subject and footer message", subjectAndFooterMessage, true},
+		{"subject and body message", subjectAndBodyMessage, false},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := hasFooter(tt.message); got != tt.want {
+				t.Errorf("hasFooter() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}