Several minor improvements and enhancements:

- can now use `podman` as alternative to `docker`
- added option to change the width at which the text breaks
- fixed problem with unhandled `CREATED` status

2 files changed, 42 insertions, 22 deletions

diff --git a/docker-widget/README.md b/docker-widget/README.md
index 01c1fbf..dfa6c10 100644
--- a/docker-widget/README.md
+++ b/docker-widget/README.md
@@ -1,9 +1,9 @@
-# Docker Widget
+# Docker / Podman Widget
 
 [![GitHub issues by-label](https://img.shields.io/github/issues-raw/streetturtle/awesome-wm-widgets/docker)](https://github.com/streetturtle/awesome-wm-widgets/labels/docker)
 ![Twitter URL](https://img.shields.io/twitter/url?url=https%3A%2F%2Fgithub.com%2Fstreetturtle%2Fawesome-wm-widgets%2Fedit%2Fmaster%2Fdocker-widget)
 
-The widget allows to manage docker containers, namely start/stop/pause/unpause:
+The widget allows to manage docker and podman containers, namely start/stop/pause/unpause:
 
 <p align="center">
     <img src="https://github.com/streetturtle/awesome-wm-widgets/raw/master/docker-widget/docker.gif"/>
@@ -17,6 +17,10 @@ It is possible to customize widget by providing a table with all or some of the
 |---|---|---|
 | `icon` | `./docker-widget/icons/docker.svg` | Path to the icon |
 | `number_of_containers` | `-1` | Number of last created containers to show |
+| `executable_name` | `podman` | Name of the executable to use, defaults to `docker` |
+| `max_widget_width` | 270 | Maximum width of the widget before the text breaks |
+
+The `executable_name` allows you to use `Podman` instead of docker. This works since `Podman` is compatible to `docker` in the sense that the syntax and command outputs are identical.
 
 ## Installation
 
diff --git a/docker-widget/docker.lua b/docker-widget/docker.lua
index f5ce7fa..4bca21c 100644
--- a/docker-widget/docker.lua
+++ b/docker-widget/docker.lua
@@ -19,9 +19,12 @@ local HOME_DIR = os.getenv("HOME")
 local WIDGET_DIR = HOME_DIR .. '/.config/awesome/awesome-wm-widgets/docker-widget'
 local ICONS_DIR = WIDGET_DIR .. '/icons/'
 
-local LIST_CONTAINERS_CMD = [[bash -c "docker container ls -a -s -n %s]]
+local LIST_CONTAINERS_CMD = [[bash -c "%s container ls -a -s -n %s]]
     .. [[ --format '{{.Names}}::{{.ID}}::{{.Image}}::{{.Status}}::{{.Size}}'"]]
 
+local DOCKER_DEFAULT_STATUS_PATTERN = '(.*)::(.*)::(.*)::(%w*) (.*)::(.*)'
+local DOCKER_CREATED_STATUS_PATTERN = '(.*)::(.*)::(.*)::Created::(.*)'
+
 --- Utility function to show warning messages
 local function show_warning(message)
     naughty.notify{
@@ -60,10 +63,16 @@ local docker_widget = wibox.widget {
 }
 
 local parse_container = function(line)
-    local name, id, image, status, how_long, size = line:match('(.*)::(.*)::(.*)::(%w*) (.*)::(.*)')
-    local actual_status
-    if status == 'Up' and how_long:find('Paused') then actual_status = 'Paused'
-    else actual_status = status end
+    local name, id, image, how_long, size, actual_status
+    if string.find(line, 'Created') then
+        name, id, image, size = line:match(DOCKER_CREATED_STATUS_PATTERN)
+        actual_status = 'Created'
+        how_long = 'Never started'
+    else
+        name, id, image, status, how_long, size = line:match(DOCKER_DEFAULT_STATUS_PATTERN)
+        if status == 'Up' and how_long:find('Paused') then actual_status = 'Paused'
+        else actual_status = status end
+    end
 
     how_long = how_long:gsub('%s?%(.*%)%s?', '')
 
@@ -76,13 +85,15 @@ local parse_container = function(line)
         size = size,
         is_up = function() return status == 'Up' end,
         is_paused = function() return actual_status:find('Paused') end,
-        is_exited = function() return status == 'Exited' end
+        is_exited = function() return status == 'Exited' end,
+        is_created = function() return status == 'Created' end
     }
     return container
 end
 
 local status_to_icon_name = {
     Up = ICONS_DIR .. 'play.svg',
+    Created = ICONS_DIR .. 'play.svg',
     Exited = ICONS_DIR .. 'square.svg',
     Paused = ICONS_DIR .. 'pause.svg'
 }
@@ -93,6 +104,10 @@ local function worker(user_args)
 
     local icon = args.icon or ICONS_DIR .. 'docker.svg'
     local number_of_containers = args.number_of_containers or -1
+    local executable_name = args.executable_name or 'docker'
+    -- 180 is the default width of the container details part of the widget and
+    -- 90 is the default width of the control buttons
+    local max_widget_width = args.max_widget_width or 180 + 90
 
     docker_widget:set_icon(icon)
 
@@ -122,12 +137,12 @@ local function worker(user_args)
 
 
             local start_stop_button
-            if container.is_up() or container.is_exited() then
+            if container.is_up() or container.is_exited() or container.is_created() then
                 start_stop_button = wibox.widget {
                     {
                         {
                             id = 'icon',
-                            image = ICONS_DIR .. (container:is_up() and 'stop-btn.svg' or 'play-btn.svg'),
+                            image = ICONS_DIR .. (container:is_exited() and 'play-btn.svg' or 'stop-btn.svg'),
                             opacity = 0.4,
                             resize = false,
                             widget = wibox.widget.imagebox
@@ -162,16 +177,16 @@ local function worker(user_args)
                 start_stop_button:buttons(
                     gears.table.join( awful.button({}, 1, function()
                         local command
-                        if container:is_up() then command = 'stop' else command = 'start' end
+                        if container:is_exited() then command = 'start' else command = 'stop' end
 
                         status_icon:set_opacity(0.2)
                         status_icon:emit_signal('widget::redraw_needed')
 
-                        spawn.easy_async('docker ' .. command .. ' ' .. container['name'], function()
-                            if errors ~= '' then show_warning(errors) end
-                            spawn.easy_async(string.format(LIST_CONTAINERS_CMD, number_of_containers),
-                                function(stdout, stderr)
-                                    rebuild_widget(stdout, stderr)
+                        spawn.easy_async(executable_name .. ' ' .. command .. ' ' .. container['name'], function(_, stderr)
+                            if stderr ~= '' then show_warning(stderr) end
+                            spawn.easy_async(string.format(LIST_CONTAINERS_CMD, executable_name, number_of_containers),
+                                function(stdout, container_errors)
+                                    rebuild_widget(stdout, container_errors)
                                 end)
                             end)
                     end) ) )
@@ -226,9 +241,9 @@ local function worker(user_args)
                         status_icon:set_opacity(0.2)
                         status_icon:emit_signal('widget::redraw_needed')
 
-                        awful.spawn.easy_async('docker ' .. command .. ' ' .. container['name'], function(_, stderr)
+                        awful.spawn.easy_async(executable_name .. ' ' .. command .. ' ' .. container['name'], function(_, stderr)
                             if stderr ~= '' then show_warning(stderr) end
-                            spawn.easy_async(string.format(LIST_CONTAINERS_CMD, number_of_containers),
+                            spawn.easy_async(string.format(LIST_CONTAINERS_CMD, executable_name, number_of_containers),
                                 function(stdout, container_errors)
                                     rebuild_widget(stdout, container_errors)
                                 end)
@@ -258,9 +273,9 @@ local function worker(user_args)
                 }
                 delete_button:buttons(
                         gears.table.join( awful.button({}, 1, function()
-                            awful.spawn.easy_async('docker rm ' .. container['name'], function(_, rm_stderr)
+                            awful.spawn.easy_async(executable_name .. ' rm ' .. container['name'], function(_, rm_stderr)
                                 if rm_stderr ~= '' then show_warning(rm_stderr) end
-                                spawn.easy_async(string.format(LIST_CONTAINERS_CMD, number_of_containers),
+                                spawn.easy_async(string.format(LIST_CONTAINERS_CMD, executable_name, number_of_containers),
                                     function(lc_stdout, lc_stderr)
                                         rebuild_widget(lc_stdout, lc_stderr) end)
                                     end)
@@ -315,7 +330,8 @@ local function worker(user_args)
                                     text = container['how_long'],
                                     widget = wibox.widget.textbox
                                 },
-                                forced_width = 180,
+                                -- 90 is the reserved width of the control buttons
+                                forced_width = max_widget_width - 90,
                                 layout = wibox.layout.fixed.vertical
                             },
                             valign = 'center',
@@ -361,7 +377,7 @@ local function worker(user_args)
                         popup.visible = not popup.visible
                     else
                         docker_widget:set_bg(beautiful.bg_focus)
-                        spawn.easy_async(string.format(LIST_CONTAINERS_CMD, number_of_containers),
+                        spawn.easy_async(string.format(LIST_CONTAINERS_CMD, executable_name, number_of_containers),
                             function(stdout, stderr)
                                 rebuild_widget(stdout, stderr)
                                 popup:move_next_to(mouse.current_widget_geometry)