From 7686dfa4740be9425bc69c2948adfcdcd0173109 Mon Sep 17 00:00:00 2001
From: ston1th <ston1th@giftfish.de>
Date: Sat, 24 Aug 2019 20:29:43 +0200
Subject: [PATCH] compile tags regex once

---
 pkg/core/types.go     | 10 +++++++++-
 pkg/db/index.go       |  6 +++---
 pkg/db/tags.go        | 11 +++++++++++
 pkg/server/handler.go |  4 ++--
 pkg/tags/tags.go      |  6 ++----
 5 files changed, 27 insertions(+), 10 deletions(-)

diff --git a/pkg/core/types.go b/pkg/core/types.go
index d3ee608..fb10958 100644
--- a/pkg/core/types.go
+++ b/pkg/core/types.go
@@ -2,7 +2,10 @@
 
 package core
 
-import "html/template"
+import (
+	"html/template"
+	"regexp"
+)
 
 type User struct {
 	Username string
@@ -25,6 +28,11 @@ type Tag struct {
 	Regex string
 }
 
+type RTag struct {
+	Name  string
+	Regex *regexp.Regexp
+}
+
 type Path struct {
 	Name string
 	Abs  string
diff --git a/pkg/db/index.go b/pkg/db/index.go
index 91bc027..3a49e07 100644
--- a/pkg/db/index.go
+++ b/pkg/db/index.go
@@ -20,9 +20,9 @@ const (
 	pathPrefix = "path/"
 )
 
-func (db *DB) Reindex(path string, match []core.Tag) (err error) {
+func (db *DB) Reindex(path string, match []core.RTag) (err error) {
 	if match == nil {
-		match, err = db.GetAllTags()
+		match, err = db.GetAllRTags()
 		if err != nil {
 			return
 		}
@@ -53,7 +53,7 @@ func (db *DB) ReindexAll() (err error) {
 	if err != nil {
 		return
 	}
-	match, err := db.GetAllTags()
+	match, err := db.GetAllRTags()
 	if err != nil {
 		return
 	}
diff --git a/pkg/db/tags.go b/pkg/db/tags.go
index d887d7c..53a9061 100644
--- a/pkg/db/tags.go
+++ b/pkg/db/tags.go
@@ -41,6 +41,17 @@ func (db *DB) GetAllTags() (tags []core.Tag, err error) {
 	return
 }
 
+func (db *DB) GetAllRTags() (rtags []core.RTag, err error) {
+	tags, err := db.GetAllTags()
+	if err != nil {
+		return
+	}
+	for _, v := range tags {
+		rtags = append(rtags, core.RTag{v.Name, regexp.MustCompile(v.Regex)})
+	}
+	return
+}
+
 func (db *DB) GetTags(name string) (t core.Tag, err error) {
 	err = db.store.Get(tagsPrefix+name, &t)
 	return
diff --git a/pkg/server/handler.go b/pkg/server/handler.go
index e1c8763..4f2462a 100644
--- a/pkg/server/handler.go
+++ b/pkg/server/handler.go
@@ -187,11 +187,11 @@ func scanFile(ctx *Context, path string) (err error) {
 			l.Printf("scanner: %s: %s", path, err)
 			return
 		}
-		t, err := ctx.Srv.DB.GetAllTags()
+		rt, err := ctx.Srv.DB.GetAllRTags()
 		if err != nil {
 			l.Printf("getTags: %s: %s", path, err)
 		}
-		found := tags.Find(txt, t)
+		found := tags.Find(txt, rt)
 		id, err := ctx.Srv.DB.Index.Add(txt, found)
 		if err != nil {
 			l.Printf("index: %s: %s", path, err)
diff --git a/pkg/tags/tags.go b/pkg/tags/tags.go
index 160a9bd..e5c9ffa 100644
--- a/pkg/tags/tags.go
+++ b/pkg/tags/tags.go
@@ -4,13 +4,11 @@ package tags
 
 import (
 	"git.giftfish.de/ston1th/docstore/pkg/core"
-	"regexp"
 )
 
-func Find(text string, tags []core.Tag) (found []string) {
+func Find(text string, tags []core.RTag) (found []string) {
 	for _, t := range tags {
-		re := regexp.MustCompile(t.Regex)
-		if re.MatchString(text) {
+		if t.Regex.MatchString(text) {
 			found = append(found, t.Name)
 		}
 	}