add commit hash and diff file list to the protobuf

patch.Make.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"os"
 	"path/filepath"
+	"strings"
 
 	"go.wit.com/lib/protobuf/gitpb"
 	"go.wit.com/log"
@@ -136,6 +137,7 @@ func (p *Patchs) addPatchFiles(repo *gitpb.Repo) error {
 		patch := new(Patch)
 		patch.Filename, _ = filepath.Rel(p.TmpDir, path)
 		patch.Data = data
+		patch.parseData()
 		patch.StartHash = repo.DevelHash()
 		p.Patchs = append(p.Patchs, patch)
 		log.Info("ADDED PATCH FILE", path)
@@ -144,6 +146,26 @@ func (p *Patchs) addPatchFiles(repo *gitpb.Repo) error {
 	return baderr
 }
 
+// looks at the git format-patch output
+// saves the commit Hash
+// saves the diff lines
+func (p *Patch) parseData() string {
+	lines := strings.Split(string(p.Data), "\n")
+	for _, line := range lines {
+		fields := strings.Fields(line)
+		if len(fields) < 2 {
+			continue
+		}
+		switch fields[0] {
+		case "From":
+			p.CommitHash = fields[1]
+		case "diff":
+			p.Files = append(p.Files, line)
+		}
+	}
+	return ""
+}
+
 // just an example of how to walk only directories
 func onlyWalkDirs(pDir string) error {
 	log.Info("DIR", pDir)

patch.proto

@@ -13,6 +13,7 @@ message Patch {
   google.protobuf.Timestamp ctime       = 7; // the git commit timestamp of this patch
   string commitHash     		= 8; // the git commit hash of this patch
   string startHash         		= 9; // the start commit hash
+  repeated string Files                 = 10; // the filenames this patch changes
 }
 
 message Patchs {			// `autogenpb:marshal`