Add commit URL to Slack notifications with link and backtick formatting

- Add commit_url column to webhook_events and deployments tables
- Extract commit URL from webhook payload (from commit object or repo URL)
- Format Slack messages with backticks for branch and commit SHA
- Link commit SHA to the actual commit URL on the git server
- Keep plain text format for ntfy notifications

internal/database/migrations/004_add_commit_url.sql

@@ -0,0 +1,3 @@
+-- Add commit_url column to webhook_events and deployments tables
+ALTER TABLE webhook_events ADD COLUMN commit_url TEXT;
+ALTER TABLE deployments ADD COLUMN commit_url TEXT;

internal/models/deployment.go

@@ -37,6 +37,7 @@ type Deployment struct {
 	AppID          string
 	WebhookEventID sql.NullInt64
 	CommitSHA      sql.NullString
+	CommitURL      sql.NullString
 	ImageID        sql.NullString
 	ContainerID    sql.NullString
 	Status         DeploymentStatus
@@ -65,7 +66,7 @@ func (d *Deployment) Save(ctx context.Context) error {
 // Reload refreshes the deployment from the database.
 func (d *Deployment) Reload(ctx context.Context) error {
 	query := `
-		SELECT id, app_id, webhook_event_id, commit_sha, image_id,
+		SELECT id, app_id, webhook_event_id, commit_sha, commit_url, image_id,
 			container_id, status, logs, started_at, finished_at
 		FROM deployments WHERE id = ?`
 
@@ -156,12 +157,12 @@ func (d *Deployment) FinishedAtFormatted() string {
 func (d *Deployment) insert(ctx context.Context) error {
 	query := `
 		INSERT INTO deployments (
-			app_id, webhook_event_id, commit_sha, image_id,
+			app_id, webhook_event_id, commit_sha, commit_url, image_id,
 			container_id, status, logs
-		) VALUES (?, ?, ?, ?, ?, ?, ?)`
+		) VALUES (?, ?, ?, ?, ?, ?, ?, ?)`
 
 	result, err := d.db.Exec(ctx, query,
-		d.AppID, d.WebhookEventID, d.CommitSHA, d.ImageID,
+		d.AppID, d.WebhookEventID, d.CommitSHA, d.CommitURL, d.ImageID,
 		d.ContainerID, d.Status, d.Logs,
 	)
 	if err != nil {
@@ -193,7 +194,7 @@ func (d *Deployment) update(ctx context.Context) error {
 
 func (d *Deployment) scan(row *sql.Row) error {
 	return row.Scan(
-		&d.ID, &d.AppID, &d.WebhookEventID, &d.CommitSHA, &d.ImageID,
+		&d.ID, &d.AppID, &d.WebhookEventID, &d.CommitSHA, &d.CommitURL, &d.ImageID,
 		&d.ContainerID, &d.Status, &d.Logs, &d.StartedAt, &d.FinishedAt,
 	)
 }
@@ -210,7 +211,7 @@ func FindDeployment(
 	deploy.ID = deployID
 
 	row := deployDB.QueryRow(ctx, `
-		SELECT id, app_id, webhook_event_id, commit_sha, image_id,
+		SELECT id, app_id, webhook_event_id, commit_sha, commit_url, image_id,
 			container_id, status, logs, started_at, finished_at
 		FROM deployments WHERE id = ?`,
 		deployID,
@@ -236,7 +237,7 @@ func FindDeploymentsByAppID(
 	limit int,
 ) ([]*Deployment, error) {
 	query := `
-		SELECT id, app_id, webhook_event_id, commit_sha, image_id,
+		SELECT id, app_id, webhook_event_id, commit_sha, commit_url, image_id,
 			container_id, status, logs, started_at, finished_at
 		FROM deployments WHERE app_id = ?
 		ORDER BY started_at DESC, id DESC LIMIT ?`
@@ -255,7 +256,7 @@ func FindDeploymentsByAppID(
 
 		scanErr := rows.Scan(
 			&deploy.ID, &deploy.AppID, &deploy.WebhookEventID,
-			&deploy.CommitSHA, &deploy.ImageID, &deploy.ContainerID,
+			&deploy.CommitSHA, &deploy.CommitURL, &deploy.ImageID, &deploy.ContainerID,
 			&deploy.Status, &deploy.Logs, &deploy.StartedAt, &deploy.FinishedAt,
 		)
 		if scanErr != nil {
@@ -284,7 +285,7 @@ func LatestDeploymentForApp(
 	deploy := NewDeployment(deployDB)
 
 	row := deployDB.QueryRow(ctx, `
-		SELECT id, app_id, webhook_event_id, commit_sha, image_id,
+		SELECT id, app_id, webhook_event_id, commit_sha, commit_url, image_id,
 			container_id, status, logs, started_at, finished_at
 		FROM deployments WHERE app_id = ?
 		ORDER BY started_at DESC, id DESC LIMIT 1`,

internal/models/webhook_event.go

@@ -19,6 +19,7 @@ type WebhookEvent struct {
 	EventType string
 	Branch    string
 	CommitSHA sql.NullString
+	CommitURL sql.NullString
 	Payload   sql.NullString
 	Matched   bool
 	Processed bool
@@ -42,8 +43,8 @@ func (w *WebhookEvent) Save(ctx context.Context) error {
 // Reload refreshes the webhook event from the database.
 func (w *WebhookEvent) Reload(ctx context.Context) error {
 	query := `
-		SELECT id, app_id, event_type, branch, commit_sha, payload,
+		SELECT id, app_id, event_type, branch, commit_sha, commit_url,
-			matched, processed, created_at
+			payload, matched, processed, created_at
 		FROM webhook_events WHERE id = ?`
 
 	row := w.db.QueryRow(ctx, query, w.ID)
@@ -54,11 +55,11 @@ func (w *WebhookEvent) Reload(ctx context.Context) error {
 func (w *WebhookEvent) insert(ctx context.Context) error {
 	query := `
 		INSERT INTO webhook_events (
-			app_id, event_type, branch, commit_sha, payload, matched, processed
+			app_id, event_type, branch, commit_sha, commit_url, payload, matched, processed
-		) VALUES (?, ?, ?, ?, ?, ?, ?)`
+		) VALUES (?, ?, ?, ?, ?, ?, ?, ?)`
 
 	result, err := w.db.Exec(ctx, query,
-		w.AppID, w.EventType, w.Branch, w.CommitSHA,
+		w.AppID, w.EventType, w.Branch, w.CommitSHA, w.CommitURL,
 		w.Payload, w.Matched, w.Processed,
 	)
 	if err != nil {
@@ -86,7 +87,7 @@ func (w *WebhookEvent) update(ctx context.Context) error {
 func (w *WebhookEvent) scan(row *sql.Row) error {
 	return row.Scan(
 		&w.ID, &w.AppID, &w.EventType, &w.Branch, &w.CommitSHA,
-		&w.Payload, &w.Matched, &w.Processed, &w.CreatedAt,
+		&w.CommitURL, &w.Payload, &w.Matched, &w.Processed, &w.CreatedAt,
 	)
 }
 
@@ -102,8 +103,8 @@ func FindWebhookEvent(
 	event.ID = id
 
 	row := db.QueryRow(ctx, `
-		SELECT id, app_id, event_type, branch, commit_sha, payload,
+		SELECT id, app_id, event_type, branch, commit_sha, commit_url,
-			matched, processed, created_at
+			payload, matched, processed, created_at
 		FROM webhook_events WHERE id = ?`,
 		id,
 	)
@@ -128,8 +129,8 @@ func FindWebhookEventsByAppID(
 	limit int,
 ) ([]*WebhookEvent, error) {
 	query := `
-		SELECT id, app_id, event_type, branch, commit_sha, payload,
+		SELECT id, app_id, event_type, branch, commit_sha, commit_url,
-			matched, processed, created_at
+			payload, matched, processed, created_at
 		FROM webhook_events WHERE app_id = ? ORDER BY created_at DESC LIMIT ?`
 
 	rows, err := db.Query(ctx, query, appID, limit)
@@ -146,7 +147,7 @@ func FindWebhookEventsByAppID(
 
 		scanErr := rows.Scan(
 			&event.ID, &event.AppID, &event.EventType, &event.Branch,
-			&event.CommitSHA, &event.Payload, &event.Matched,
+			&event.CommitSHA, &event.CommitURL, &event.Payload, &event.Matched,
 			&event.Processed, &event.CreatedAt,
 		)
 		if scanErr != nil {
@@ -165,8 +166,8 @@ func FindUnprocessedWebhookEvents(
 	db *database.Database,
 ) ([]*WebhookEvent, error) {
 	query := `
-		SELECT id, app_id, event_type, branch, commit_sha, payload,
+		SELECT id, app_id, event_type, branch, commit_sha, commit_url,
-			matched, processed, created_at
+			payload, matched, processed, created_at
 		FROM webhook_events
 		WHERE matched = 1 AND processed = 0 ORDER BY created_at ASC`
 
@@ -184,7 +185,7 @@ func FindUnprocessedWebhookEvents(
 
 		scanErr := rows.Scan(
 			&event.ID, &event.AppID, &event.EventType, &event.Branch,
-			&event.CommitSHA, &event.Payload, &event.Matched,
+			&event.CommitSHA, &event.CommitURL, &event.Payload, &event.Matched,
 			&event.Processed, &event.CreatedAt,
 		)
 		if scanErr != nil {

internal/service/deploy/deploy.go

@@ -439,11 +439,17 @@ func (svc *Service) createDeploymentRecord(
 		}
 	}
 
-	// Set commit SHA from webhook event
+	// Set commit SHA and URL from webhook event
-	if webhookEvent != nil && webhookEvent.CommitSHA.Valid {
+	if webhookEvent != nil {
+		if webhookEvent.CommitSHA.Valid {
 			deployment.CommitSHA = webhookEvent.CommitSHA
 		}
 
+		if webhookEvent.CommitURL.Valid {
+			deployment.CommitURL = webhookEvent.CommitURL
+		}
+	}
+
 	deployment.Status = models.DeploymentStatusBuilding
 
 	saveErr := deployment.Save(ctx)

internal/service/notify/notify.go

@@ -4,6 +4,7 @@ package notify
 import (
 	"bytes"
 	"context"
+	"database/sql"
 	"encoding/json"
 	"errors"
 	"fmt"
@@ -73,14 +74,24 @@ func (svc *Service) NotifyBuildStart(
 	deployment *models.Deployment,
 ) {
 	title := "Build started: " + app.Name
-	message := "Building from branch " + app.Branch
+
+	// Plain text message for ntfy
+	ntfyMessage := "Building from branch " + app.Branch
 
 	if deployment.CommitSHA.Valid {
-		shortSHA := deployment.CommitSHA.String[:minInt(shortCommitLength, len(deployment.CommitSHA.String))]
+		shortSHA := truncateSHA(deployment.CommitSHA.String)
-		message += " at " + shortSHA
+		ntfyMessage += " at " + shortSHA
 	}
 
-	svc.sendNotifications(ctx, app, title, message, "info")
+	// Slack message with formatting
+	slackMessage := "Building from branch `" + app.Branch + "`"
+
+	if deployment.CommitSHA.Valid {
+		shortSHA := truncateSHA(deployment.CommitSHA.String)
+		slackMessage += " at " + formatCommitLink(shortSHA, deployment.CommitURL)
+	}
+
+	svc.sendNotifications(ctx, app, title, ntfyMessage, slackMessage, "info")
 }
 
 // NotifyBuildSuccess sends a build success notification.
@@ -93,7 +104,7 @@ func (svc *Service) NotifyBuildSuccess(
 	title := "Build success: " + app.Name
 	message := "Image built successfully in " + formatDuration(duration)
 
-	svc.sendNotifications(ctx, app, title, message, "success")
+	svc.sendNotifications(ctx, app, title, message, message, "success")
 }
 
 // NotifyBuildFailed sends a build failed notification.
@@ -107,7 +118,7 @@ func (svc *Service) NotifyBuildFailed(
 	title := "Build failed: " + app.Name
 	message := "Build failed after " + formatDuration(duration) + ": " + buildErr.Error()
 
-	svc.sendNotifications(ctx, app, title, message, "error")
+	svc.sendNotifications(ctx, app, title, message, message, "error")
 }
 
 // NotifyDeploySuccess sends a deploy success notification.
@@ -118,14 +129,24 @@ func (svc *Service) NotifyDeploySuccess(
 ) {
 	duration := time.Since(deployment.StartedAt)
 	title := "Deploy success: " + app.Name
-	message := "Successfully deployed in " + formatDuration(duration)
+
+	// Plain text message for ntfy
+	ntfyMessage := "Successfully deployed in " + formatDuration(duration)
 
 	if deployment.CommitSHA.Valid {
-		shortSHA := deployment.CommitSHA.String[:minInt(shortCommitLength, len(deployment.CommitSHA.String))]
+		shortSHA := truncateSHA(deployment.CommitSHA.String)
-		message += " (commit " + shortSHA + ")"
+		ntfyMessage += " (commit " + shortSHA + ")"
 	}
 
-	svc.sendNotifications(ctx, app, title, message, "success")
+	// Slack message with formatting
+	slackMessage := "Successfully deployed in " + formatDuration(duration)
+
+	if deployment.CommitSHA.Valid {
+		shortSHA := truncateSHA(deployment.CommitSHA.String)
+		slackMessage += " (commit " + formatCommitLink(shortSHA, deployment.CommitURL) + ")"
+	}
+
+	svc.sendNotifications(ctx, app, title, ntfyMessage, slackMessage, "success")
 }
 
 // NotifyDeployFailed sends a deploy failed notification.
@@ -139,7 +160,7 @@ func (svc *Service) NotifyDeployFailed(
 	title := "Deploy failed: " + app.Name
 	message := "Deployment failed after " + formatDuration(duration) + ": " + deployErr.Error()
 
-	svc.sendNotifications(ctx, app, title, message, "error")
+	svc.sendNotifications(ctx, app, title, message, message, "error")
 }
 
 // formatDuration formats a duration for display.
@@ -154,19 +175,28 @@ func formatDuration(d time.Duration) string {
 	return fmt.Sprintf("%dm %ds", minutes, seconds)
 }
 
-// minInt returns the smaller of two integers.
+// truncateSHA truncates a commit SHA to shortCommitLength characters.
-func minInt(a, b int) int {
+func truncateSHA(sha string) string {
-	if a < b {
+	if len(sha) > shortCommitLength {
-		return a
+		return sha[:shortCommitLength]
 	}
 
-	return b
+	return sha
+}
+
+// formatCommitLink formats a commit SHA as a Slack link if URL is available.
+func formatCommitLink(shortSHA string, commitURL sql.NullString) string {
+	if commitURL.Valid && commitURL.String != "" {
+		return "<" + commitURL.String + "|`" + shortSHA + "`>"
+	}
+
+	return "`" + shortSHA + "`"
 }
 
 func (svc *Service) sendNotifications(
 	ctx context.Context,
 	app *models.App,
-	title, message, priority string,
+	title, ntfyMessage, slackMessage, priority string,
 ) {
 	// Send to ntfy if configured
 	if app.NtfyTopic.Valid && app.NtfyTopic.String != "" {
@@ -178,7 +208,7 @@ func (svc *Service) sendNotifications(
 			// even if the parent context is cancelled.
 			notifyCtx := context.WithoutCancel(ctx)
 
-			ntfyErr := svc.sendNtfy(notifyCtx, ntfyTopic, title, message, priority)
+			ntfyErr := svc.sendNtfy(notifyCtx, ntfyTopic, title, ntfyMessage, priority)
 			if ntfyErr != nil {
 				svc.log.Error(
 					"failed to send ntfy notification",
@@ -199,7 +229,7 @@ func (svc *Service) sendNotifications(
 			// even if the parent context is cancelled.
 			notifyCtx := context.WithoutCancel(ctx)
 
-			slackErr := svc.sendSlack(notifyCtx, slackWebhook, title, message, priority)
+			slackErr := svc.sendSlack(notifyCtx, slackWebhook, title, slackMessage, priority)
 			if slackErr != nil {
 				svc.log.Error(
 					"failed to send slack notification",

internal/service/webhook/webhook.go

@@ -50,10 +50,12 @@ type GiteaPushPayload struct {
 	Ref        string `json:"ref"`
 	Before     string `json:"before"`
 	After      string `json:"after"`
+	CompareURL string `json:"compare_url"`
 	Repository struct {
 		FullName string `json:"full_name"`
 		CloneURL string `json:"clone_url"`
 		SSHURL   string `json:"ssh_url"`
+		HTMLURL  string `json:"html_url"`
 	} `json:"repository"`
 	Pusher struct {
 		Username string `json:"username"`
@@ -61,6 +63,7 @@ type GiteaPushPayload struct {
 	} `json:"pusher"`
 	Commits []struct {
 		ID      string `json:"id"`
+		URL     string `json:"url"`
 		Message string `json:"message"`
 		Author  struct {
 			Name  string `json:"name"`
@@ -90,6 +93,7 @@ func (svc *Service) HandleWebhook(
 	// Extract branch from ref
 	branch := extractBranch(pushPayload.Ref)
 	commitSHA := pushPayload.After
+	commitURL := extractCommitURL(pushPayload)
 
 	// Check if branch matches
 	matched := branch == app.Branch
@@ -100,6 +104,7 @@ func (svc *Service) HandleWebhook(
 	event.EventType = eventType
 	event.Branch = branch
 	event.CommitSHA = sql.NullString{String: commitSHA, Valid: commitSHA != ""}
+	event.CommitURL = sql.NullString{String: commitURL, Valid: commitURL != ""}
 	event.Payload = sql.NullString{String: string(payload), Valid: true}
 	event.Matched = matched
 	event.Processed = false
@@ -160,3 +165,21 @@ func extractBranch(ref string) string {
 
 	return ref
 }
+
+// extractCommitURL extracts the commit URL from the webhook payload.
+// Prefers the URL from the head commit, falls back to constructing from repo URL.
+func extractCommitURL(payload GiteaPushPayload) string {
+	// Try to find the URL from the head commit (matching After SHA)
+	for _, commit := range payload.Commits {
+		if commit.ID == payload.After && commit.URL != "" {
+			return commit.URL
+		}
+	}
+
+	// Fall back to constructing URL from repo HTML URL
+	if payload.Repository.HTMLURL != "" && payload.After != "" {
+		return payload.Repository.HTMLURL + "/commit/" + payload.After
+	}
+
+	return ""
+}