try rill. run 'git pull' 10 at a time. most excellent

checkout.go

@@ -6,6 +6,13 @@ package main
 */
 
 import (
+	"context"
+	"fmt"
+
+	"github.com/destel/rill"
+	"github.com/destel/rill/mockapi"
+
+	"go.wit.com/lib/gui/repolist"
 	"go.wit.com/log"
 )
 
@@ -32,3 +39,76 @@ func checkoutDevel() bool {
 	log.Info("Ran git checkout in", count, "repos. failure count =", failed)
 	return true
 }
+
+// https://news.ycombinator.com/item?id=42237166
+// https://github.com/destel/rill
+// https://pkg.go.dev/github.com/destel/rill
+func rillMockapi() {
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	// Convert a slice of user IDs into a channel
+	ids := rill.FromSlice([]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, nil)
+
+	// Read users from the API.
+	// Concurrency = 3
+	users := rill.Map(ids, 3, func(id int) (*mockapi.User, error) {
+		return mockapi.GetUser(ctx, id)
+	})
+
+	// Activate users.
+	// Concurrency = 2
+	err := rill.ForEach(users, 2, func(u *mockapi.User) error {
+		if u.IsActive {
+			fmt.Printf("User %d is already active\n", u.ID)
+			return nil
+		}
+
+		u.IsActive = true
+		err := mockapi.SaveUser(ctx, u)
+		if err != nil {
+			return err
+		}
+
+		fmt.Printf("User saved: %+v\n", u)
+		return nil
+	})
+
+	// Handle errors
+	fmt.Println("Error:", err)
+}
+
+// rediculously wrong for the purposes of understanding rill
+// which, seems to be awesome. long live rill
+func rillGitPull() {
+	// todo: wrap my head around what this could be for
+	// ctx, cancel := context.WithCancel(context.Background())
+	// defer cancel()
+
+	var gopaths []string
+	loop := me.repos.View.ReposSortByName()
+	for loop.Scan() {
+		repo := loop.Repo()
+		gopaths = append(gopaths, repo.GoPath())
+	}
+
+	// Convert a slice of user IDs into a channel
+	ids := rill.FromSlice(gopaths, nil)
+
+	// Read users from the API.
+	// Concurrency = 20
+	users := rill.Map(ids, 20, func(id string) (*repolist.RepoRow, error) {
+		return me.repos.View.FindByName(id), nil
+	})
+
+	// Activate users.
+	// Concurrency = 10
+	err := rill.ForEach(users, 10, func(repo *repolist.RepoRow) error {
+		fmt.Printf("Repo found : %s\n", repo.GoPath())
+		repo.Run([]string{"git", "pull"})
+		return nil
+	})
+
+	// Handle errors
+	fmt.Println("Error:", err)
+}

globalBuildOptions.go

@@ -119,11 +119,14 @@ func globalBuildOptions(vbox *gui.Node) {
 	grid.NewButton("git pull", func() {
 		me.Disable()
 		defer me.Enable()
+		rillGitPull()
+		/*
 			loop := me.repos.View.ReposSortByName()
 			for loop.Scan() {
 				repo := loop.Repo()
 				repo.Run([]string{"git", "pull"})
 			}
+		*/
 	})
 	grid.NextRow()