From 28255b5f4d41d0fface2d60ab49c29998e004e56 Mon Sep 17 00:00:00 2001
From: KatolaZ <katolaz@freaknet.org>
Date: Wed, 17 Jan 2018 10:40:57 +0000
Subject: first parallel version

---
 config.go   |  8 +++---
 d1pkgweb.go | 91 +++++++++++++++++++++++++++++++++++++++++++------------------
 2 files changed, 69 insertions(+), 30 deletions(-)

diff --git a/config.go b/config.go
index c71d287..72a5665 100644
--- a/config.go
+++ b/config.go
@@ -11,15 +11,15 @@ type CompCfg struct {
 	URL  string `yaml:"URL"`
 }
 
-type Suite struct {
+type SuiteCfg struct {
 	Name       string    `yaml:"Name"`
 	Components []CompCfg `yaml:"Components"`
 }
 
 type ReleaseCfg struct {
-	Release string  `yaml:"Release"`
-	RepoURL string  `yaml:"RepoURL"`
-	Suites  []Suite `yaml:"Suites"`
+	Release string     `yaml:"Release"`
+	RepoURL string     `yaml:"RepoURL"`
+	Suites  []SuiteCfg `yaml:"Suites"`
 }
 
 type PkgwebCfg struct {
diff --git a/d1pkgweb.go b/d1pkgweb.go
index b8b048f..d78f004 100644
--- a/d1pkgweb.go
+++ b/d1pkgweb.go
@@ -9,6 +9,57 @@ import (
 	"os"
 )
 
+func processSuite(suiteCfg SuiteCfg, relCfg ReleaseCfg, baseDir string, result chan error) {
+
+	relName := relCfg.Release
+	suiteName := suiteCfg.Name
+	for _, component := range suiteCfg.Components { // For each component in the suite
+		fullURL := fmt.Sprintf("%s/%s", relCfg.RepoURL, component.URL)
+		fmt.Fprintf(os.Stderr, "Processing: %s\n", fullURL)
+		f, err := http.Get(fullURL)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "...Ignoring %s\n", fullURL)
+		} else {
+			uncompressed, err := gzip.NewReader(f.Body)
+			if err != nil {
+				fmt.Fprintf(os.Stderr, "error uncompressing %s\n", fullURL)
+				continue
+			}
+			r := bufio.NewScanner(uncompressed)
+			for s, err := deb822.ScanStanza(r); s["Package"] != ""; s, err = deb822.ScanStanza(r) {
+				if err == nil {
+					deb822.Stanza2HtmlPage(s, pkgTempl, baseDir, relName, suiteName, component.Name)
+				} else {
+					fmt.Printf("error: %s\n", err)
+				}
+			}
+		}
+	}
+	result <- nil
+}
+
+func processRelease(relCfg ReleaseCfg, baseDir string, result chan error) {
+
+	c := make(chan error)
+	numWorkers := 0
+
+	for _, suiteCfg := range relCfg.Suites { // For each suite of the release
+		numWorkers++
+		go processSuite(suiteCfg, relCfg, baseDir, c)
+	}
+
+	select {
+	case e := <-c:
+		numWorkers--
+		if numWorkers == 0 {
+			result <- e
+			return
+		}
+	}
+	result <- nil
+	return
+}
+
 func main() {
 
 	args := os.Args
@@ -21,34 +72,22 @@ func main() {
 	confFile := args[1]
 	conf := readConfig(confFile)
 
-	//fmt.Printf("Got config: %s\n", *conf)
+	c := make(chan error)
+	numWorkers := 0
 
 	for _, relCfg := range conf.PkgSets { // For each release...
-		relName := relCfg.Release
-		for _, suiteCfg := range relCfg.Suites { // For each suite of the release
-			suiteName := suiteCfg.Name
-			for _, component := range suiteCfg.Components { // For each component in the suite
-				fullURL := fmt.Sprintf("%s/%s", relCfg.RepoURL, component.URL)
-				fmt.Fprintf(os.Stderr, "Processing: %s\n", fullURL)
-				f, err := http.Get(fullURL)
-				if err != nil {
-					fmt.Fprintf(os.Stderr, "...Ignoring %s\n", fullURL)
-				} else {
-					uncompressed, err := gzip.NewReader(f.Body)
-					if err != nil {
-						fmt.Fprintf(os.Stderr, "error uncompressing %s\n", fullURL)
-						continue
-					}
-					r := bufio.NewScanner(uncompressed)
-					for s, err := deb822.ScanStanza(r); s["Package"] != ""; s, err = deb822.ScanStanza(r) {
-						if err == nil {
-							deb822.Stanza2HtmlPage(s, pkgTempl, ".", relName, suiteName, component.Name)
-						} else {
-							fmt.Printf("error: %s\n", err)
-						}
-					}
-				}
-			}
+		numWorkers++
+		go processRelease(relCfg, ".", c)
+	}
+	var err = make([]error, numWorkers)
+
+	select {
+	case e := <-c:
+		numWorkers--
+		err[numWorkers] = e
+		if numWorkers == 0 {
+			fmt.Fprintf(os.Stderr, "Exiting from main....")
+			os.Exit(0)
 		}
 	}
 }
-- 
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