add crawl type indicator to admin status page

src/DirectoryCrawler/DirectoryCrawler.go

@@ -22,12 +22,14 @@ type ActiveCrawl struct {
 	Path     string `json:"path"`
 	Start    int64  `json:"start"`
 	Elapsed  int64  `json:"elapsed"`
+	Function string `json:"function"`
 }
 
 type FinishedCrawl struct {
 	Path     string `json:"path"`
 	Start    int64  `json:"start"`
 	Elapsed  int64  `json:"elapsed"`
+	Function string `json:"function"`
 }
 
 type DirectoryCrawler struct {
@@ -87,11 +89,16 @@ func isSubpath(path, subpath string) bool {
 	return true
 }
 
-func (dc *DirectoryCrawler) startCrawl(path string) bool {
+func (dc *DirectoryCrawler) startCrawl(path string, function string) bool {
 	if dc.IsCrawlActive(path) {
 		return false
 	}
-	activeCrawls[path] = &ActiveCrawl{Path: path, Start: time.Now().Unix(), Elapsed: int64(0)}
+	activeCrawls[path] = &ActiveCrawl{
+		Path:     path,
+		Start:    time.Now().Unix(),
+		Elapsed:  int64(0),
+		Function: function,
+	}
 	return true
 }
 
@@ -103,7 +110,12 @@ func (dc *DirectoryCrawler) endCrawl(path string) {
 	if len(finishedCrawls) >= maxFinishedCrawls {
 		finishedCrawls = finishedCrawls[1:]
 	}
-	finishedCrawls = append(finishedCrawls, FinishedCrawl{Path: path, Start: activeCrawls[path].Start, Elapsed: int64(time.Since(time.Unix(activeCrawls[path].Start, 0)).Seconds())})
+	finishedCrawls = append(finishedCrawls, FinishedCrawl{
+		Path:     path,
+		Start:    activeCrawls[path].Start,
+		Elapsed:  int64(time.Since(time.Unix(activeCrawls[path].Start, 0)).Seconds()),
+		Function: activeCrawls[path].Function,
+	})
 	delete(activeCrawls, path)
 }
 

src/DirectoryCrawler/crawl.go

@@ -10,6 +10,9 @@ import (
 	"fmt"
 	"os"
 	"path/filepath"
+	"reflect"
+	"runtime"
+	"strings"
 )
 
 func (dc *DirectoryCrawler) walkRecursiveFunc(fullPath string, info os.FileInfo, err error) error {
@@ -39,16 +42,26 @@ func (dc *DirectoryCrawler) walkNonRecursiveFunc(fullPath string, dir os.DirEntr
 
 func (dc *DirectoryCrawler) Crawl(fullPath string, walkFunc func(string, os.FileInfo, error) error) error {
 	CacheItem.RetardCheck(fullPath)
-	readyToStart := dc.startCrawl(fullPath)
+
+	// Set default value.
+	if walkFunc == nil {
+		walkFunc = dc.walkRecursiveFunc
+	}
+
+	//Extrapolate the name of the callback function.
+	pc := reflect.ValueOf(walkFunc).Pointer()
+	fn := runtime.FuncForPC(pc)
+	fullName := fn.Name()
+	parts := strings.Split(fullName, ".")
+	funcName := parts[len(parts)-1]
+	cleanFuncName := strings.TrimSuffix(funcName, "-fm")
+
+	readyToStart := dc.startCrawl(fullPath, strings.TrimSuffix(cleanFuncName, "Func"))
 	if !readyToStart {
 		return errors.New(fmt.Sprintf(`rejecting crawl, already in progress for "%s"`, fullPath))
 	}
 	defer dc.endCrawl(fullPath)
 
-	if walkFunc == nil {
-		walkFunc = dc.walkRecursiveFunc
-	}
-
 	info, err := os.Lstat(fullPath)
 	if os.IsNotExist(err) {
 		// If the path doesn't exist, just silently exit
@@ -93,7 +106,7 @@ func (dc *DirectoryCrawler) Crawl(fullPath string, walkFunc func(string, os.File
 // CrawlNoRecursion this function crawls a file or directory and does not recurse into any subdirectories. Also returns the result of the crawl.
 func (dc *DirectoryCrawler) CrawlNoRecursion(fullPath string) (*CacheItem.Item, error) {
 	CacheItem.RetardCheck(fullPath)
-	readyToStart := dc.startCrawl(fullPath)
+	readyToStart := dc.startCrawl(fullPath, "walkNonRecursive")
 	if !readyToStart {
 		return nil, errors.New(fmt.Sprintf(`rejecting crawl, already in progress for "%s"`, fullPath))
 	}