func main() {
xsrc := flag.String("src", "./content", "Source directory to read markdown from")
xdst := flag.String("dst", "", "Destination to write translated content")
flag.Parse()
srcD, srcE := os.Stat(*xsrc)
if os.IsNotExist(srcE) || !srcD.IsDir() {
clog.Fatalf("Source directory does not exist: %s", *xsrc)
}
if len(*xdst) > 0 {
dstD, dstE := os.Stat(*xdst)
if os.IsNotExist(dstE) || !dstD.IsDir() {
clog.Fatalf("Target directory does not exist: %s", *xdst)
}
}
tld := strings.Trim(*xsrc, "/")
dirpos := strings.LastIndex(tld, "/")
if dirpos < 0 {
tld = tld[dirpos+1:]
}
if len(tld) < 1 {
clog.Fatalf("Source directory path must be at least one level deep, example: ./content")
}
if len(*xdst) > 0 {
translate(*xsrc, *xdst, tld)
} else {
serve(*xsrc, tld)
}
}
func translate(src, dst, tld string) {
if !isEmpty(dst) {
clog.Fatalf("Target directory %s is not empty", dst)
}
var idx Index = make(map[string]int)
walker := func(fsrc string, f os.FileInfo, err error) error {
return setup(dst, fsrc, f, idx, err)
}
if err := filepath.Walk(src, walker); err != nil {
clog.Fatalf("Filewalk %v", err)
}
json, err := json.Marshal(idx)
if err != nil {
clog.Fatalf("During Index JSON Marshal %v", err)
}
jfile := strings.TrimRight(dst, "/")
jfile += "/" + tld + "/index.json"
err = ioutil.WriteFile(jfile, json, 0666)
if err != nil {
clog.Fatalf("Error writing json file: %s", jfile)
}
}
func serve(cdir string, tld string) {
tempDir, _ := ioutil.TempDir("", "tut")
tempDir += string(os.PathSeparator)
defer os.RemoveAll(tempDir)
clog.Log("Workdir %s", tempDir)
c := make(chan os.Signal, 1)
signal.Notify(c, os.Interrupt)
go func() {
<-c
os.RemoveAll(tempDir)
clog.Fatal("Stopped")
}()
var idx Index
idx = make(map[string]int)
walker := func(src string, f os.FileInfo, err error) error {
return setup(tempDir, src, f, idx, err)
}
if err := filepath.Walk(cdir, walker); err != nil {
clog.Fatalf("Filewalk %v", err)
}
getindex := func(w http.ResponseWriter, r *http.Request) {
json, err := json.Marshal(idx)
if err != nil {
clog.Fatalf("During Index JSON Marshal %v", err)
}
w.Header().Set("Content-Type", "application/json")
w.Write(json)
}
http.HandleFunc("/tutorial/index.json", getindex)
url, _ := url.Parse("http://localhost:8093")
rp := httputil.NewSingleHostReverseProxy(url)
http.Handle("/query", rp)
fs := http.FileServer(http.Dir(tempDir + "/" + tld + "/"))
http.Handle("/tutorial/", http.StripPrefix("/tutorial/", fs))
http.Handle("/", http.RedirectHandler("/tutorial/index.html#1", 302))
clog.Log("Running at http://localhost:8000/")
go func() {
for {
filepath.Walk(cdir, walker)
time.Sleep(2 * time.Second)
}
}()
// last step
if err := http.ListenAndServe(":8000", nil); err != nil {
clog.Fatalf("ListenAndServe %v", err)
}
}
func main() {
flag.Parse()
if *devMode {
ast.EnableDeveloperFunctions()
if *logKeys == "" {
clog.ParseLogFlags(devModeDefaultLogKeys)
clog.Log("Developer Mode Enabled (default developer logging)")
} else {
clog.ParseLogFlag(*logKeys)
clog.Log("Developer Mode Enabled (custom command-line logging)")
}
}
if *profileMode {
clog.Log("Enabling HTTP Profiling on :6060")
go func() {
realhttp.ListenAndServe(":6060", nil)
}()
}
go dumpOnSignalForPlatform()
// create a QueryChannel
queryChannel := make(network.QueryChannel)
// create one or more network endpoints
httpEndpoint := http.NewHttpEndpoint(*addr, *staticPath)
httpEndpoint.SendQueriesTo(queryChannel)
err := server.Server(VERSION, *couchbaseSite, *defaultPoolName, queryChannel, queryTimeout)
if err != nil {
clog.Fatalf("Unable to run server, err: %v", err)
}
}
func isEmpty(dir string) bool {
empty := true
walker := func(dir string, f os.FileInfo, err error) error {
if f.IsDir() {
return nil
}
empty = false
return nil
}
if err := filepath.Walk(dir, walker); err != nil {
clog.Fatalf("Filewalk %v", err)
}
return empty
}
func (this *NotOperator) Evaluate(item *dparval.Value) (*dparval.Value, error) {
ov, err := this.Operand.Evaluate(item)
if err != nil {
return nil, err
}
oval := ov.Value()
operandBoolVal := ValueInBooleanContext(oval)
switch operandBoolVal := operandBoolVal.(type) {
case bool:
return dparval.NewValue(!operandBoolVal), nil
case nil:
return dparval.NewValue(nil), nil
default:
clog.Fatalf("Unexpected type %T in NOT", operandBoolVal)
return dparval.NewValue(nil), nil
}
}
func (this *SimpleExecutablePipelineBuilder) Build(p *plan.Plan, q network.Query) (*xpipeline.ExecutablePipeline, error) {
rv := &xpipeline.ExecutablePipeline{}
var lastOperator xpipeline.Operator = nil
currentElement := p.Root
for currentElement != nil {
var currentOperator xpipeline.Operator = nil
switch currentElement := currentElement.(type) {
case *plan.FastCount:
pool, err := this.site.PoolByName(currentElement.Pool)
if err != nil {
return nil, err
}
bucket, err := pool.BucketByName(currentElement.Bucket)
if err != nil {
return nil, err
}
var countIndex catalog.CountIndex
if currentElement.CountIndex != "" {
index, err := bucket.IndexByName(currentElement.CountIndex)
if err != nil {
return nil, err
}
countIndex = index.(catalog.CountIndex) // FIXME: need static type safety
}
currentOperator = xpipeline.NewFastCount(bucket, countIndex, currentElement.Expr, currentElement.Ranges)
case *plan.Scan:
pool, err := this.site.PoolByName(currentElement.Pool)
if err != nil {
return nil, err
}
bucket, err := pool.BucketByName(currentElement.Bucket)
if err != nil {
return nil, err
}
index, err := bucket.IndexByName(currentElement.ScanIndex)
if err != nil {
return nil, err
}
scanIndex := index.(catalog.ScanIndex) // FIXME: need static type safety
currentOperator = xpipeline.NewScan(bucket, scanIndex, currentElement.Ranges, currentElement.As)
case *plan.KeyScan:
currentOperator = xpipeline.NewKeyScan(currentElement.KeyList)
case *plan.KeyJoin:
pool, err := this.site.PoolByName(currentElement.Pool)
if err != nil {
return nil, err
}
bucket, err := pool.BucketByName(currentElement.Bucket)
if err != nil {
return nil, err
}
if currentElement.Oper == "NEST" {
currentOperator = xpipeline.NewKeyNest(bucket, currentElement.Projection, currentElement.JoinType, currentElement.Keys, currentElement.As)
} else {
currentOperator = xpipeline.NewKeyJoin(bucket, currentElement.Projection, currentElement.JoinType, currentElement.Keys, currentElement.As)
}
case *plan.Fetch:
pool, err := this.site.PoolByName(currentElement.Pool)
if err != nil {
return nil, err
}
bucket, err := pool.BucketByName(currentElement.Bucket)
if err != nil {
return nil, err
}
currentOperator = xpipeline.NewFetch(bucket, currentElement.Projection, currentElement.As)
if currentElement.Ids != nil {
fetchOperator := currentOperator.(*xpipeline.Fetch)
fetchOperator.SetIds(currentElement.Ids)
}
case *plan.Filter:
currentOperator = xpipeline.NewFilter(currentElement.Expr)
case *plan.Order:
currentOperator = xpipeline.NewOrder(currentElement.Sort, currentElement.ExplicitAliases)
case *plan.Limit:
currentOperator = xpipeline.NewLimit(currentElement.Val)
case *plan.Offset:
currentOperator = xpipeline.NewOffset(currentElement.Val)
case *plan.Projector:
currentOperator = xpipeline.NewProject(currentElement.Result, currentElement.ProjectEmpty)
case *plan.Unnest:
currentOperator = xpipeline.NewUnnest(currentElement.Over, currentElement.JoinType, currentElement.As)
case *plan.EliminateDuplicates:
currentOperator = xpipeline.NewEliminateDuplicates()
case *plan.Grouper:
currentOperator = xpipeline.NewGrouper(currentElement.Group, currentElement.Aggregates)
case *plan.Explain:
currentOperator = xpipeline.NewExplain(currentElement.Input)
case *plan.CreateIndex:
pool, err := this.site.PoolByName(currentElement.Pool)
if err != nil {
return nil, err
}
bucket, err := pool.BucketByName(currentElement.Bucket)
if err != nil {
return nil, err
}
currentOperator = xpipeline.NewCreateIndex(bucket, currentElement.Name, currentElement.IndexType, currentElement.Primary, currentElement.On)
case *plan.DropIndex:
pool, err := this.site.PoolByName(currentElement.Pool)
if err != nil {
return nil, err
}
bucket, err := pool.BucketByName(currentElement.Bucket)
if err != nil {
return nil, err
}
index, err := bucket.IndexByName(currentElement.Name)
if err != nil {
return nil, err
}
currentOperator = xpipeline.NewDropIndex(index)
}
// pass reference to query
currentOperator.SetQuery(q)
//link root of xpipeline
if rv.Root == nil {
rv.Root = currentOperator
}
// link previous operator to this one
if lastOperator != nil {
lastOperator.SetSource(currentOperator)
}
// advance to next
lastOperator = currentOperator
sources := currentElement.Sources()
if len(sources) > 1 {
// FIXME future operators like JOIN will have more than one source
clog.Fatalf("multiple sources not yet supported")
} else if len(sources) == 1 {
currentElement = sources[0]
} else {
currentElement = nil
}
}
return rv, nil
}
