migrate to codeberg (#1)

* add --prev option
* sort floating_nodes to avoid skipping floating windows

.github/dependabot.yml

@@ -0,0 +1,10 @@
+version: 2
+updates:
+  - package-ecosystem: "gomod"
+    directory: "/"
+    schedule:
+      interval: "monthly"
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+        interval: "monthly"

.goreleaser.yaml

@@ -0,0 +1,65 @@
+# vim: set ts=2 sw=2 tw=0 fo=cnqoj
+
+version: 2
+
+before:
+  hooks:
+    - go mod tidy
+
+gitea_urls:
+  api: https://codeberg.org/api/v1
+  download: https://codeberg.org
+  
+builds:
+  - env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+      - freebsd
+
+archives:
+  - formats: [tar.gz]
+    # this name template makes the OS and Arch compatible with the results of `uname`.
+    name_template: >-
+      {{ .ProjectName }}_
+      {{- title .Os }}_
+      {{- if eq .Arch "amd64" }}x86_64
+      {{- else if eq .Arch "386" }}i386
+      {{- else }}{{ .Arch }}{{ end }}
+      {{- if .Arm }}v{{ .Arm }}{{ end }}_{{ .Tag }}
+    # use zip for windows archives
+    format_overrides:
+      - goos: windows
+        formats: [zip]
+      - goos: linux
+        formats: [tar.gz,binary]
+    files:
+      - src: "*.md"
+        strip_parent: true
+      - src: Makefile.dist
+        dst: Makefile
+    wrap_in_directory: true
+
+changelog:
+  sort: asc
+  filters:
+    exclude:
+      - "^docs:"
+      - "^test:"
+  groups:
+    - title: Improved
+      regexp: '^.*?(feat|add|new)(\([[:word:]]+\))??!?:.+$'
+      order: 0
+    - title: Fixed
+      regexp: '^.*?(bug|fix)(\([[:word:]]+\))??!?:.+$'
+      order: 1
+    - title: Changed
+      order: 999
+
+release:
+  header: "# Release Notes"
+  footer: >-
+
+    ---
+
+    Full Changelog: [{{ .PreviousTag }}...{{ .Tag }}](https://codeberg.org/scip/swaycycle/compare/{{ .PreviousTag }}...{{ .Tag }})

.woodpecker/build.yaml

@@ -0,0 +1,36 @@
+matrix:
+  platform:
+    - linux/amd64
+  goversion:
+    - 1.24
+
+labels:
+  platform: ${platform}
+    
+steps:
+  build:
+    when:
+      event: [push]
+    image: golang:${goversion}
+    commands:
+      - go get
+      - go build
+
+  linter:
+    when:
+      event: [push]
+    image: golang:${goversion}
+    commands:
+      - curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/HEAD/install.sh | sh -s -- -b $(go env GOPATH)/bin v2.5.0
+      - golangci-lint --version
+      - golangci-lint run ./...
+    depends_on: [build]
+
+  test:
+    when:
+      event: [push]
+    image: golang:${goversion}
+    commands:
+      - go get
+      - go test -v -cover
+    depends_on: [build,linter]

.woodpecker/release.yaml

@@ -0,0 +1,15 @@
+# build release
+
+labels:
+  platform: linux/amd64
+    
+steps:
+  goreleaser:
+    image: goreleaser/goreleaser
+    when:
+      event: [tag]
+    environment:
+      GITEA_TOKEN:
+        from_secret: DEPLOY_TOKEN
+    commands:
+      - goreleaser release --clean --verbose

Makefile.dist

@@ -0,0 +1,18 @@
+# -*-make-*-
+
+.PHONY: install all
+
+tool   = rpn
+PREFIX = /usr/local
+UID    = root
+GID    = 0
+
+all:
+	@echo "Type 'sudo make install' to install the tool."
+	@echo "To change prefix, type 'sudo make install PREFIX=/opt'"
+
+install:
+	install -d -o $(UID) -g $(GID) $(PREFIX)/bin
+	install -d -o $(UID) -g $(GID) $(PREFIX)/share/doc
+	install -o $(UID) -g $(GID) -m 555 $(tool)  $(PREFIX)/sbin/
+	install -o $(UID) -g $(GID) -m 444 *.md $(PREFIX)/share/doc/

README.md

@@ -1,2 +1,109 @@
+[![status-badge](https://ci.codeberg.org/api/badges/15562/status.svg)](https://ci.codeberg.org/repos/15562)
+[![License](https://img.shields.io/badge/license-GPL-blue.svg)](https://codeberg.org/scip/swaycycle/raw/branch/main/LICENSE)
+[![Go Report Card](https://goreportcard.com/badge/codeberg.org/scip/epuppy)](https://goreportcard.com/report/codeberg.org/scip/swaycycle)
+
 # swaycycle
-Cycle through all visible windows on a sway[fx] workspace
+
+Cycle through  all visible windows  on a sway[fx]  workspace including
+floating  ones or  windows  in sub-containers.   So  it simulates  the
+behavior of other window managers  and desktop environments. Just bind
+the tool to `ALT-tab` and there you go.
+
+
+## Installation
+
+Download  the   binary  for   your  architecture  from   the  [release
+page](https://codeberg.org/scip/swaycycle/releases) and copy to
+some location within your `$PATH`.
+
+To  build  the  tool  from  source,  checkout  the  repo  and  execute
+`make`. You'll need  the go toolkit. Then copy  the binary `swaycycle`
+to some location within your `$PATH`.
+
+## Configuration
+
+Add such a line to your sway config file (e.g. in `$HOME/.config/sway/config`):
+
+```default
+bindsym $mod+Tab exec ~/bin/swaycycle
+```
+
+You may  also add  a second key  binding to do  the reverse,  which is
+sometimes very useful:
+
+```default
+bindsym $mod+Shift+Tab exec ~/bin/swaycycle --prev
+```
+
+## Debugging
+
+You may call `swaycycle` in a terminal window on a workspace with at
+least one another window to test it. Use the option `--debug (-d)` to
+get comprehensive debugging output. Add the option `--dump (-D)` to
+also get a dump of the sway data tree retrieved by swaycycle. You may
+also try `--verbose (-v)` to get a oneliner about the switch.
+
+It's also possible to debug an instance executed by sway using the
+`--logfile (-l)` switch, e.g.:
+
+```default
+bindsym $mod+Tab exec ~/bin/swaycycle -d -l /tmp/cycle.log
+```
+
+## How does it work?
+
+`swaycycle` is being executed by sway when the user presses a key
+(e.g. `ALT-tab`). It then connects to the running sway instance via
+the provided IPC unix domain socket as available in the environment
+variable `SWAYSOCK`. Via that connection it sends the `GET_TREE`
+command and processes the retrieved JSON response. This JSON tree
+contains all information about the running instance such as outputs,
+workspaces and containers.
+
+Then it determines which workspace is the current active one and
+builds a list of all windows visible on that workspace, whether
+floating or not.
+
+Next it determines which window is following the one in the list with
+the current active focus. If the active one is at the end of the list,
+it starts from the top.
+
+Finally `swaycycle` sends the propper switch focus command via the IPC
+connection to sway, e.g.:
+
+`[con_id=14] focus`
+
+## Getting help
+
+Although I'm happy to hear from swaycycle users in private email, that's the
+best way for me to forget to do something.
+
+In order to report a bug,  unexpected behavior, feature requests or to
+submit    a    patch,    please    open   an    issue    on    github:
+https://codeberg.org/scip/swaycycle/issues.
+
+## See also
+
+- [sway-ipc(7)](https://www.mankier.com/7/sway-ipc)
+- [swaywm](https://github.com/swaywm/sway/)
+- [swayfx](https://github.com/WillPower3309/swayfx)
+
+## Copyright and license
+
+This software is licensed under the GNU GENERAL PUBLIC LICENSE version 3.
+
+## Authors
+
+T.v.Dein <tom AT vondein DOT org>
+
+## Project homepage
+
+https://codeberg.org/scip/swaycycle
+
+## Copyright and License
+
+Licensed under the GNU GENERAL PUBLIC LICENSE version 3.
+
+## Author
+
+T.v.Dein <tom AT vondein DOT org>

go.mod

@@ -4,5 +4,13 @@ go 1.23
 
 require (
 	github.com/alecthomas/repr v0.5.1 // indirect
+	github.com/fatih/color v1.16.0 // indirect
+	github.com/lmittmann/tint v1.1.2 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/spf13/pflag v1.0.7 // indirect
+	github.com/tlinden/i3ipc v0.0.0-20250815101608-4f7e27528be3 // indirect
+	github.com/tlinden/yadu v0.1.3 // indirect
+	golang.org/x/sys v0.14.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -1,4 +1,25 @@
 github.com/alecthomas/repr v0.5.1 h1:E3G4t2QbHTSNpPKBgMTln5KLkZHLOcU7r37J4pXBuIg=
 github.com/alecthomas/repr v0.5.1/go.mod h1:Fr0507jx4eOXV7AlPV6AVZLYrLIuIeSOWtW57eE/O/4=
+github.com/fatih/color v1.16.0 h1:zmkK9Ngbjj+K0yRhTVONQh1p/HknKYSlNT+vZCzyokM=
+github.com/fatih/color v1.16.0/go.mod h1:fL2Sau1YI5c0pdGEVCbKQbLXB6edEj1ZgiY4NijnWvE=
+github.com/lmittmann/tint v1.1.2 h1:2CQzrL6rslrsyjqLDwD11bZ5OpLBPU+g3G/r5LSfS8w=
+github.com/lmittmann/tint v1.1.2/go.mod h1:HIS3gSy7qNwGCj+5oRjAutErFBl4BzdQP6cJZ0NfMwE=
+github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
+github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
+github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
+github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
+github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
 github.com/spf13/pflag v1.0.7 h1:vN6T9TfwStFPFM5XzjsvmzZkLuaLX+HS+0SeFLRgU6M=
 github.com/spf13/pflag v1.0.7/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
+github.com/tlinden/i3ipc v0.0.0-20250815101608-4f7e27528be3 h1:/kIZO4852sAVemXtqnsBid0r4Q1h87jDwHa8f7v1h5I=
+github.com/tlinden/i3ipc v0.0.0-20250815101608-4f7e27528be3/go.mod h1:mc0toDHmgqgX6FpE69U5yMPnHuLTdekHRslSLDp8xSE=
+github.com/tlinden/yadu v0.1.3 h1:5cRCUmj+l5yvlM2irtpFBIJwVV2DPEgYSaWvF19FtcY=
+github.com/tlinden/yadu v0.1.3/go.mod h1:l3bRmHKL9zGAR6pnBHY2HRPxBecf7L74BoBgOOpTcUA=
+golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.6.0 h1:MVltZSvRTcU2ljQOhs94SXPftV6DCNnZViHeQps87pQ=
+golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.14.0 h1:Vz7Qs629MkJkGyHxUlRHizWJRG2j8fbQKjELVSNhy7Q=
+golang.org/x/sys v0.14.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

main.go

@@ -18,14 +18,19 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
 package main
 
 import (
-	"bytes"
-	"encoding/json"
+	"errors"
 	"fmt"
+	"io"
 	"log"
+	"log/slog"
 	"os"
-	"os/exec"
+	"runtime/debug"
+	"sort"
 
-	"github.com/alecthomas/repr"
+	"github.com/lmittmann/tint"
+	"github.com/mattn/go-isatty"
+	"github.com/tlinden/i3ipc"
+	"github.com/tlinden/yadu"
 
 	flag "github.com/spf13/pflag"
 )
@@ -37,29 +42,58 @@ const (
 	con
 	floating
 
-	VERSION = "v0.1.1"
+	LevelNotice = slog.Level(2)
+
+	VERSION = "v0.3.1"
+
+	IPC_HEADER_SIZE = 14
+	IPC_MAGIC       = "i3-ipc"
+
+	// message types
+	IPC_GET_TREE    = 4
+	IPC_RUN_COMMAND = 0
 )
 
-type Node struct {
-	Id                int    `json:"id"`
-	Nodetype          string `json:"type"` // output, workspace or container
-	Name              string `json:"name"` // workspace number or app name
-	Nodes             []Node `json:"nodes"`
-	FloatingNodes     []Node `json:"floating_nodes"`
-	Focused           bool   `json:"focused"`
-	Window            int    `json:"window"` // wayland native
-	X11Window         string `json:"app_id"` // x11 compat
-	Current_workspace string `json:"current_workspace"`
-}
+var (
+	Visibles         = []*i3ipc.Node{}
+	CurrentWorkspace = ""
+	Previous         = false
+	Debug            = false
+	Dumptree         = false
+	Dumpvisibles     = false
+	Version          = false
+	Verbose          = false
+	Notswitch        = false
+	Showhelp         = false
+	Logfile          = ""
+)
 
-var Visibles = []Node{}
-var CurrentWorkspace = ""
-var Debug = false
-var Version = false
+const Usage string = `This is swaycycle - cycle focus through all visible windows on a sway workspace.
+
+Usage: swaycycle [-vdDn] [-l <log>]
+
+Options:
+  -p, --prev             cycle backward
+  -n, --no-switch        do not switch windows
+  -d, --debug            enable debugging
+  -D, --dump             dump the sway tree (needs -d as well)
+      --dump-visibles    dump a list of visible windows on current workspace (needs -d)
+  -l, --logfile string   write output to logfile
+  -v, --version          show program version
+
+Copyleft (L) 2025 Thomas von Dein.
+Licensed under the terms of the GNU GPL version 3.`
 
 func main() {
+	flag.BoolVarP(&Previous, "prev", "p", false, "cycle backward")
 	flag.BoolVarP(&Debug, "debug", "d", false, "enable debugging")
+	flag.BoolVarP(&Dumptree, "dump", "D", false, "dump the sway tree (needs -d as well)")
+	flag.BoolVarP(&Dumpvisibles, "dump-visibles", "", false, "dump a list of visible windows on current workspace (needs -d)")
+	flag.BoolVarP(&Notswitch, "no-switch", "n", false, "do not switch windows")
 	flag.BoolVarP(&Version, "version", "v", false, "show program version")
+	flag.BoolVarP(&Showhelp, "help", "h", Showhelp, "show help")
+
+	flag.StringVarP(&Logfile, "logfile", "l", "", "write output to logfile")
 	flag.Parse()
 
 	if Version {
@@ -67,18 +101,91 @@ func main() {
 		os.Exit(0)
 	}
 
-	// fills Visibles node list
-	fetchSwayTree()
+	if Showhelp {
+		fmt.Println(Usage)
+		os.Exit(0)
+	}
+
+	// setup logging
+	if Logfile != "" {
+		file, err := os.OpenFile(Logfile, os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0600)
+		if err != nil {
+			log.Fatalf("Failed to open logfile %s: %s", Logfile, err)
+		}
+		defer func() {
+			if err := file.Close(); err != nil {
+				log.Fatalf("failed to close log file: %s", err)
+			}
+		}()
+		setupLogging(file)
+	} else {
+		setupLogging(os.Stdout)
+	}
+
+	// connect to sway unix socket
+	ipc := i3ipc.NewI3ipc()
+
+	err := ipc.Connect()
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer ipc.Close()
+
+	sway, err := ipc.GetTree()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	// traverse the tree and find visible windows
+	if err := processJSON(sway); err != nil {
+		log.Fatalf("%s", err)
+	}
 
 	if len(Visibles) == 0 {
 		os.Exit(0)
 	}
 
-	id := findNextWindow()
-
-	if id > 0 {
-		switchFocus(id)
+	id := 0
+	if Previous {
+		id = findPrevWindow()
+		slog.Debug("findPrevWindow", "nextid", id)
+	} else {
+		id = findNextWindow()
+		slog.Debug("findNextWindow", "nextid", id)
 	}
+
+	if id > 0 && !Notswitch {
+		if err := switchFocus(id, ipc); err != nil {
+			log.Fatalf("%s", err)
+		}
+	}
+}
+
+// get into the sway tree, determine current workspace and extract all
+// its visible windows, store them in the global var Visibles
+func processJSON(sway *i3ipc.Node) error {
+	if !istype(sway, root) && len(sway.Nodes) == 0 {
+		return errors.New("invalid or empty JSON structure")
+	}
+
+	if Dumptree {
+		slog.Debug("processed sway tree", "sway", sway)
+	}
+
+	for _, node := range sway.Nodes {
+		if node.Current_workspace != "" {
+			// this is an output node containing the current workspace
+			CurrentWorkspace = node.Current_workspace
+			recurseNodes(node.Nodes)
+			break
+		}
+	}
+
+	if Dumpvisibles {
+		dumpVisibles()
+	}
+
+	return nil
 }
 
 // find the next window after the  one with current focus. if the last
@@ -108,64 +215,123 @@ func findNextWindow() int {
 	return 0
 }
 
-// actually switch focus using a swaymsg command
-func switchFocus(id int) {
-	var cmd *exec.Cmd
-	arg := fmt.Sprintf("[con_id=%d]", id)
-
-	if Debug {
-		fmt.Printf("executing: swaymsg %s focus\n", arg)
+func findPrevWindow() int {
+	vislen := len(Visibles)
+	if vislen == 0 {
+		return 0
 	}
-	cmd = exec.Command("swaymsg", arg, "focus")
 
-	errbuf := &bytes.Buffer{}
-	cmd.Stderr = errbuf
+	prevnode := Visibles[vislen-1].Id
 
-	out, err := cmd.Output()
+	for _, node := range Visibles {
+		if node.Focused {
+			return prevnode
+		}
+		prevnode = node.Id
+	}
 
+	return 0
+}
+
+// actually switch focus using a swaymsg command
+func switchFocus(id int, ipc *i3ipc.I3ipc) error {
+	responses, err := ipc.RunContainerCommand(id, "focus")
 	if err != nil {
-		log.Fatalf("Failed to execute swaymsg to switch focus: %s", err)
-		if Debug {
-			fmt.Println(out)
+		log.Fatalf("failed to send focus command to container %d: %s (%s)",
+			id, responses[0].Error, err)
+	}
+
+	slog.Info("switched focus", "con_id", id)
+
+	return nil
+}
+
+// iterate recursively over given node list extracting visible windows
+func recurseNodes(nodes []*i3ipc.Node) {
+	for _, node := range nodes {
+
+		if istype(node, workspace) {
+			if node.Name == CurrentWorkspace {
+				//floating_nodes need to be sorted because
+				//order changes each time they are focused.
+				FloatVis := node.FloatingNodes
+				sort.Slice(FloatVis, func(i, j int) bool {
+					return FloatVis[i].Id < FloatVis[j].Id
+				})
+				//now we can handle nodes and floating_nodes identical
+				node.Nodes = append(node.Nodes, FloatVis...)
+				recurseNodes(node.Nodes)
+				return
+			}
+
+			// ignore other workspaces
+			continue
+		}
+
+		// the first nodes seen are workspaces, so if we see a con
+		// node, we are already inside the current workspace
+		if (istype(node, con) || istype(node, floating)) &&
+			(node.Window > 0 || node.X11Window != "") {
+			Visibles = append(Visibles, node)
+		} else {
+			recurseNodes(node.Nodes)
 		}
 	}
-
-	if errbuf.String() != "" {
-		log.Fatalf("swaymsg error: %s", errbuf.String())
-	}
-
 }
 
-// execute swaymsg to get its internal tree
-func fetchSwayTree() {
-	var cmd *exec.Cmd
+func dumpVisibles() {
+	windows := make([]string, len(Visibles))
 
-	if Debug {
-		fmt.Println("executing: swaymsg -t get_tree -r")
+	for idx, node := range Visibles {
+		windows[idx] = fmt.Sprintf("id: %02d, focus: %5t, name: %s", node.Id, node.Focused, node.Name)
 	}
 
-	cmd = exec.Command("swaymsg", "-t", "get_tree", "-r")
+	slog.Debug("visible windows on current workspace", "visibles", windows)
+}
 
-	errbuf := &bytes.Buffer{}
-	cmd.Stderr = errbuf
+// we use line wise logging, unless debugging is enabled
+func setupLogging(output io.Writer) {
+	logLevel := &slog.LevelVar{}
 
-	out, err := cmd.Output()
+	if !Debug {
+		// default logging
+		opts := &tint.Options{
+			Level:     logLevel,
+			AddSource: false,
+			NoColor:   IsNoTty(),
+		}
 
-	if err != nil {
-		log.Fatalf("Failed to execute swaymsg to get json tree: %s", err)
-	}
+		logLevel.Set(slog.LevelInfo)
 
-	if errbuf.String() != "" {
-		log.Fatalf("swaymsg error: %s", errbuf.String())
-	}
+		handler := tint.NewHandler(output, opts)
+		logger := slog.New(handler)
 
-	if err := processJSON(out); err != nil {
-		log.Fatalf("%s", err)
+		slog.SetDefault(logger)
+	} else {
+		// we're using a more verbose logger in debug mode
+		buildInfo, _ := debug.ReadBuildInfo()
+		opts := &yadu.Options{
+			Level:     logLevel,
+			AddSource: true,
+		}
+
+		logLevel.Set(slog.LevelDebug)
+
+		handler := yadu.NewHandler(output, opts)
+		debuglogger := slog.New(handler).With(
+			slog.Group("program_info",
+				slog.Int("pid", os.Getpid()),
+				slog.String("go_version", buildInfo.GoVersion),
+			),
+		)
+
+		slog.SetDefault(debuglogger)
 	}
 }
 
-func istype(nd Node, which int) bool {
-	switch nd.Nodetype {
+// little helper to distinguish sway tree node types
+func istype(nd *i3ipc.Node, which int) bool {
+	switch nd.Type {
 	case "root":
 		return which == root
 	case "output":
@@ -181,53 +347,12 @@ func istype(nd Node, which int) bool {
 	return false
 }
 
-// get into the sway tree, determine current workspace and extract all
-// its visible windows, store them in the global var Visibles
-func processJSON(jsoncode []byte) error {
-	sway := Node{}
-
-	if err := json.Unmarshal(jsoncode, &sway); err != nil {
-		return fmt.Errorf("Failed to unmarshal json: %w", err)
+// returns TRUE if stdout is NOT a tty or windows
+func IsNoTty() bool {
+	if !isatty.IsTerminal(os.Stdout.Fd()) {
+		return true
 	}
 
-	if !istype(sway, root) && len(sway.Nodes) == 0 {
-		return fmt.Errorf("Invalid or empty JSON structure")
-	}
-
-	for _, node := range sway.Nodes {
-		if node.Current_workspace != "" {
-			// this is an output node containing the current workspace
-			CurrentWorkspace = node.Current_workspace
-			recurseNodes(node.Nodes)
-		}
-	}
-
-	if Debug {
-		repr.Println(Visibles)
-	}
-
-	return nil
-}
-
-// iterate recursively over given node list extracting visible windows
-func recurseNodes(nodes []Node) {
-	for _, node := range nodes {
-		// we handle nodes and floating_nodes identical
-		node.Nodes = append(node.Nodes, node.FloatingNodes...)
-
-		if istype(node, workspace) {
-			if node.Name == CurrentWorkspace {
-				recurseNodes(node.Nodes)
-				return
-			}
-		}
-
-		// the first nodes seen are workspaces, so if we see a con
-		// node, we are already inside the current workspace
-		if (istype(node, con) || istype(node, floating)) && (node.Window > 0 || node.X11Window != "") {
-			Visibles = append(Visibles, node)
-		} else {
-			recurseNodes(node.Nodes)
-		}
-	}
+	// it is a tty
+	return false
 }

mkrel.sh

@@ -0,0 +1,69 @@
+#!/bin/bash
+
+# Copyright © 2025 Thomas von Dein
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+
+# get list with: go tool dist list
+DIST="darwin/amd64
+freebsd/amd64
+linux/amd64
+freebsd/arm64
+linux/arm64"
+
+tool="$1"
+version="$2"
+
+if test -z "$version"; then
+  echo "Usage: $0 <tool name> <release version>"
+  exit 1
+fi
+
+rm -rf releases
+mkdir -p releases
+
+
+for D in $DIST; do
+    os=${D/\/*/}
+    arch=${D/*\//}
+    binfile="releases/${tool}-${os}-${arch}-${version}"
+
+    if test "$os" = "windows"; then
+        binfile="${binfile}.exe"
+    fi
+    
+    tardir="${tool}-${os}-${arch}-${version}"
+    tarfile="releases/${tool}-${os}-${arch}-${version}.tar.gz"
+    set -x
+    GOOS=${os} GOARCH=${arch} go build -tags osusergo,netgo -ldflags "-extldflags=-static" -o ${binfile}
+    mkdir -p ${tardir}
+    cp ${binfile} README.md LICENSE ${tardir}/
+    echo 'tool = swaycycle
+PREFIX = /usr/local
+UID    = root
+GID    = 0
+
+install:
+	install -d -o $(UID) -g $(GID) $(PREFIX)/bin
+	install -d -o $(UID) -g $(GID) $(PREFIX)/man/man1
+	install -o $(UID) -g $(GID) -m 555 $(tool)  $(PREFIX)/sbin/
+	install -o $(UID) -g $(GID) -m 444 $(tool).1 $(PREFIX)/man/man1/' > ${tardir}/Makefile
+    tar cpzf ${tarfile} ${tardir}
+    sha256sum ${binfile} | cut -d' ' -f1 > ${binfile}.sha256
+    sha256sum ${tarfile} | cut -d' ' -f1 > ${tarfile}.sha256
+    rm -rf ${tardir}
+    set +x
+done
+