feat: initial web version

chi_util.go

@@ -0,0 +1,54 @@
+package main
+
+import (
+	"net/http"
+	"strings"
+
+	"github.com/go-chi/chi"
+	"github.com/go-chi/render"
+)
+
+// taken from
+// - https://github.com/go-chi/chi/blob/cca4135d8dddff765463feaf1118047a9e506b4a/_examples/fileserver/main.go
+// - https://github.com/go-chi/chi/blob/cca4135d8dddff765463feaf1118047a9e506b4a/_examples/rest/main.go
+
+func (e *ErrResponse) Render(w http.ResponseWriter, r *http.Request) error {
+	render.Status(r, e.HTTPStatusCode)
+	return nil
+}
+
+type ErrResponse struct {
+	Err            error `json:"-"` // low-level runtime error
+	HTTPStatusCode int   `json:"-"` // http response status code
+
+	StatusText string `json:"status"`          // user-level status message
+	AppCode    int64  `json:"code,omitempty"`  // application-specific error code
+	ErrorText  string `json:"error,omitempty"` // application-level error message, for debugging
+}
+
+func ErrRender(err error) render.Renderer {
+	return &ErrResponse{
+		Err:            err,
+		HTTPStatusCode: 422,
+		StatusText:     "Error rendering response.",
+		ErrorText:      err.Error(),
+	}
+}
+
+func FileServer(r chi.Router, path string, root http.FileSystem) {
+	if strings.ContainsAny(path, "{}*") {
+		panic("FileServer does not permit URL parameters.")
+	}
+
+	fs := http.StripPrefix(path, http.FileServer(root))
+
+	if path != "/" && path[len(path)-1] != '/' {
+		r.Get(path, http.RedirectHandler(path+"/", 301).ServeHTTP)
+		path += "/"
+	}
+	path += "*"
+
+	r.Get(path, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		fs.ServeHTTP(w, r)
+	}))
+}

cmd_db.go

@@ -12,8 +12,6 @@ import (
 )
 
 type dbOptions struct {
-	Path    string `mapstructure:"dbpath"`
-	Verbose bool
 }
 
 func (opts dbOptions) String() string {
@@ -22,7 +20,6 @@ func (opts dbOptions) String() string {
 }
 
 func dbSetupFlags(flags *pflag.FlagSet, opts *dbOptions) {
-
 	viper.BindPFlags(flags)
 }
 

cmd_run.go

@@ -20,19 +20,13 @@ type runOptions struct {
 	ReposToFetch []string
 
 	// db
-	DBOpts dbOptions
+	DBOpts    dbOptions
+	GraphOpts graphOptions
 
 	// run
-	ShowClosed      bool `mapstructure:"show-closed"`
-	ShowOrphans     bool
 	AdditionalPulls []string
-	EpicLabel       string
 	Destination     string
-	DebugGraph      bool
-	NoCompress      bool
-	DarkTheme       bool
 
-	Targets []string
 	//Preview     bool
 }
 
@@ -43,12 +37,6 @@ func (opts runOptions) String() string {
 
 func runSetupFlags(flags *pflag.FlagSet, opts *runOptions) {
 	flags.BoolVarP(&opts.NoPull, "no-pull", "f", false, "do not pull new issues before runing")
-	flags.BoolVarP(&opts.ShowClosed, "show-closed", "", false, "show closed issues")
-	flags.BoolVarP(&opts.DebugGraph, "debug-graph", "", false, "debug graph")
-	flags.BoolVarP(&opts.ShowOrphans, "show-orphans", "", false, "show issues not linked to an epic")
-	flags.BoolVarP(&opts.NoCompress, "no-compress", "", false, "do not compress graph (no overlap)")
-	flags.BoolVarP(&opts.DarkTheme, "dark-theme", "", false, "dark theme")
-	flags.StringVarP(&opts.EpicLabel, "epic-label", "", "epic", "label used for epics (empty means issues with dependencies but without dependants)")
 	flags.StringVarP(&opts.Destination, "destination", "", "-", "destination ('-' for stdout)")
 	flags.StringSliceVarP(&opts.AdditionalPulls, "additional-pull", "", []string{}, "additional pull that won't necessarily be displayed on the graph")
 	//flags.BoolVarP(&opts.Preview, "preview", "p", false, "preview result")
@@ -69,9 +57,12 @@ func newRunCommand() *cobra.Command {
 			if err := viper.Unmarshal(&opts.DBOpts); err != nil {
 				return err
 			}
+			if err := viper.Unmarshal(&opts.GraphOpts); err != nil {
+				return err
+			}
 			opts.PullOpts.DBOpts = opts.DBOpts
 			opts.PullOpts.Targets = append(args, opts.AdditionalPulls...)
-			opts.Targets = args
+			opts.GraphOpts.Targets = args
 			return run(opts)
 		},
 	}
@@ -81,21 +72,17 @@ func newRunCommand() *cobra.Command {
 	return cmd
 }
 
-func run(opts *runOptions) error {
-	logger().Debug("run", zap.Stringer("opts", *opts))
-	if !opts.NoPull {
-		if err := pull(&opts.PullOpts); err != nil {
-			return err
-		}
+func graphviz(opts *graphOptions) (string, error) {
+	if opts.Targets == nil || len(opts.Targets) < 1 || opts.Targets[0] == "" {
+		return "", fmt.Errorf("you need to specify at least one target")
 	}
-
 	issues, err := loadIssues(db, nil)
 	if err != nil {
-		return errors.Wrap(err, "failed to load issues")
+		return "", errors.Wrap(err, "failed to load issues")
 	}
 
 	if err := issues.prepare(); err != nil {
-		return errors.Wrap(err, "failed to prepare issues")
+		return "", errors.Wrap(err, "failed to prepare issues")
 	}
 
 	if !opts.ShowClosed {
@@ -106,7 +93,18 @@ func run(opts *runOptions) error {
 		logger().Warn("--show-orphans is deprecated and will be removed")
 	}
 
-	out, err := graphviz(issues, opts)
+	return graphvizRender(issues, opts)
+}
+
+func run(opts *runOptions) error {
+	logger().Debug("run", zap.Stringer("opts", *opts))
+	if !opts.NoPull {
+		if err := pull(&opts.PullOpts); err != nil {
+			return err
+		}
+	}
+
+	out, err := graphviz(&opts.GraphOpts)
 	if err != nil {
 		return err
 	}

cmd_web.go

@@ -0,0 +1,153 @@
+package main
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+	"time"
+
+	"github.com/go-chi/chi"
+	"github.com/go-chi/chi/middleware"
+	"github.com/go-chi/docgen"
+	"github.com/go-chi/render"
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+	"github.com/spf13/viper"
+)
+
+type webOptions struct {
+	// web specific
+	Bind       string
+	ShowRoutes bool
+
+	// db
+	DBOpts dbOptions
+}
+
+func (opts webOptions) String() string {
+	out, _ := json.Marshal(opts)
+	return string(out)
+}
+
+func webSetupFlags(flags *pflag.FlagSet, opts *webOptions) {
+	flags.StringVarP(&opts.Bind, "bind", "b", ":2020", "web server bind address")
+	flags.BoolVarP(&opts.ShowRoutes, "show-routes", "", false, "display available routes and quit")
+	viper.BindPFlags(flags)
+}
+
+func newWebCommand() *cobra.Command {
+	opts := &webOptions{}
+	cmd := &cobra.Command{
+		Use: "web",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if err := viper.Unmarshal(opts); err != nil {
+				return err
+			}
+			if err := viper.Unmarshal(&opts.DBOpts); err != nil {
+				return err
+			}
+			return web(opts)
+		},
+	}
+	webSetupFlags(cmd.Flags(), opts)
+	dbSetupFlags(cmd.Flags(), &opts.DBOpts)
+	return cmd
+}
+
+func (i *Issue) Render(w http.ResponseWriter, r *http.Request) error {
+	return nil
+}
+
+func webListIssues(w http.ResponseWriter, r *http.Request) {
+	issues, err := loadIssues(db, nil)
+	if err != nil {
+		render.Render(w, r, ErrRender(err))
+		return
+	}
+
+	list := []render.Renderer{}
+	for _, issue := range issues {
+		list = append(list, issue)
+	}
+
+	if err := render.RenderList(w, r, list); err != nil {
+		render.Render(w, r, ErrRender(err))
+		return
+	}
+}
+
+func webGraphviz(r *http.Request) (string, error) {
+	opts := &graphOptions{
+		Targets:    strings.Split(r.URL.Query().Get("targets"), ","),
+		ShowClosed: r.URL.Query().Get("show-closed") == "1",
+	}
+	return graphviz(opts)
+}
+
+func webDotIssues(w http.ResponseWriter, r *http.Request) {
+	out, err := webGraphviz(r)
+	if err != nil {
+		render.Render(w, r, ErrRender(err))
+		return
+	}
+
+	w.Write([]byte(out))
+}
+
+func webImageIssues(w http.ResponseWriter, r *http.Request) {
+	out, err := webGraphviz(r)
+	if err != nil {
+		render.Render(w, r, ErrRender(err))
+		return
+	}
+
+	cmd := exec.Command("dot", "-Tsvg")
+	cmd.Stdin = bytes.NewBuffer([]byte(out))
+	cmd.Stdout = w
+
+	if err := cmd.Run(); err != nil {
+		render.Render(w, r, ErrRender(err))
+		return
+	}
+}
+
+func web(opts *webOptions) error {
+	r := chi.NewRouter()
+
+	//r.Use(middleware.RequestID)
+	//r.Use(middleware.RealIP)
+	r.Use(middleware.Logger)
+	r.Use(middleware.Recoverer)
+	//r.Use(middleware.URLFormat)
+	r.Use(middleware.Timeout(5 * time.Second))
+
+	r.Route("/api", func(r chi.Router) {
+		r.Route("/", func(r chi.Router) {
+			r.Use(render.SetContentType(render.ContentTypeJSON))
+			r.Get("/issues.json", webListIssues)
+		})
+		r.Get("/graph/dot", webDotIssues)
+		r.Get("/graph/image", webImageIssues)
+	})
+
+	workDir, _ := os.Getwd()
+	filesDir := filepath.Join(workDir, "web")
+	FileServer(r, "/", http.Dir(filesDir))
+
+	if opts.ShowRoutes {
+		fmt.Println(docgen.MarkdownRoutesDoc(r, docgen.MarkdownOpts{
+			ProjectPath: "moul.io/depviz",
+			Intro:       "Welcome to depviz generated docs.",
+		}))
+		return nil
+	}
+
+	log.Printf("Listening on %s", opts.Bind)
+	return http.ListenAndServe(opts.Bind, r)
+}

go.mod

@@ -1,19 +1,34 @@
 module moul.io/depviz
 
 require (
+	cloud.google.com/go v0.29.0 // indirect
+	github.com/BurntSushi/toml v0.3.1 // indirect
 	github.com/awalterschulze/gographviz v0.0.0-20180927133620-e69668a01397
+	github.com/denisenkom/go-mssqldb v0.0.0-20180901172138-1eb28afdf9b6 // indirect
+	github.com/erikstmartin/go-testdb v0.0.0-20160219214506-8d10e4a1bae5 // indirect
+	github.com/go-chi/chi v3.3.3+incompatible
+	github.com/go-chi/docgen v1.0.2 // indirect
+	github.com/go-chi/render v1.0.1
+	github.com/go-sql-driver/mysql v1.4.0 // indirect
+	github.com/google/go-cmp v0.2.0 // indirect
 	github.com/google/go-github v17.0.0+incompatible
 	github.com/google/go-querystring v1.0.0 // indirect
+	github.com/inconshreveable/mousetrap v1.0.0 // indirect
 	github.com/jinzhu/gorm v1.9.1
 	github.com/jinzhu/inflection v0.0.0-20180308033659-04140366298a // indirect
+	github.com/jinzhu/now v0.0.0-20180511015916-ed742868f2ae // indirect
+	github.com/lib/pq v1.0.0 // indirect
 	github.com/mattn/go-sqlite3 v1.9.0
 	github.com/pkg/errors v0.8.0
 	github.com/spf13/cobra v0.0.3
 	github.com/spf13/pflag v1.0.3
 	github.com/spf13/viper v1.2.1
 	github.com/xanzy/go-gitlab v0.11.1
 	go.uber.org/zap v1.9.1
+	golang.org/x/crypto v0.0.0-20181001203147-e3636079e1a4 // indirect
 	golang.org/x/net v0.0.0-20181003013248-f5e5bdd77824 // indirect
 	golang.org/x/oauth2 v0.0.0-20181003184128-c57b0facaced
+	golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f // indirect
+	google.golang.org/appengine v1.2.0 // indirect
 	moul.io/zapgorm v0.0.0-20181003053625-c808c1c4adc6
 )