bento: status now waits for changes in chroot dir in an infinite loop

bento

@@ -5,7 +5,7 @@ TIMEOUT=20
 # FUNCTION LIBRARIES
 usage() {                                                                                    
     cat <<EOF
-usage: bento init | deploy | diff | build [dry-run|test|switch] | status [delay] | flake-update [input]
+usage: bento init | deploy | diff | build [dry-run|test|switch] | status | flake-update [input]
 
 bento init
 : create the layout for bento in the current directory
@@ -19,8 +19,10 @@ bento diff
 bento build [dry-run|test|switch]
 : build configurations, can activate (test or switch) a build locally
 
-bento status [delay]
+bento status
 : display information for remote hosts
+: if the script isn't run in an interactive terminal, exit after display
+: in an interactive terminal, display status and poll for changes to display again
 
 bento flake-update [input]
 : recursively update flakes lock files
@@ -768,12 +770,14 @@ then
     . ./config.sh
     cd hosts || exit 5
 
-    if [ -n "$2" ]
+    # if stdout is interactive
+    # wait for changes and loop
+    if [ -t 1 ]
     then
         while true
         do
             display_status
-            sleep "$2"
+            inotifywait -q -e 'modify,create' "${CHROOT_DIR}/states.txt" "${CHROOT_DIR}"/*/logs/ >/dev/null 2>/dev/null
         done
     else
         display_status

doc/how-to.md

@@ -78,7 +78,9 @@ If you don't want to wait for the timer, you can ssh into the machine to run `sy
 
 As each host is sending a log upon rebuild to tell if it failed or succeeded, the files are used to check what happened since the sftp file `last_time_changed` was created.
 
-Using `bento status` you can track the current state of each hosts (time since last update, current NixOS version, status report)
+Using `bento status` you can track the current state of each hosts (time since last update, current NixOS version, status report).
+
+Bento will display the current state of the fleet, and wait for a change in the chroot directory to display the status again.
 
 [![asciicast](https://asciinema.org/a/520504.svg)](https://asciinema.org/a/520504)
 

doc/reference.md

@@ -13,8 +13,10 @@
   - dry-build or build configurations. Using `test` or `switch`, can be used to apply a configuration locally. Default is `build`.
   - when using `TARGET_IP`, the command is run on a remote server
 
-- `bento status [delay]`
+- `bento status`
-  - display information for remote hosts, if `delay` is set, loop infinitely to display the status every `delay` seconds. Default delay is `0` and doesn't loop.
+  - display information for remote hosts
+  - if the command is run in interactive mode, `bento` will run in an inifite loop the status display and wait for a change in the chroot directory
+  - if the command isn't run in interactive mode, the status is only displayed once and `bento` exits
 
 - `bento flake-update [input]`
   - recursively update flakes lock files

flake.nix

@@ -12,6 +12,10 @@
         name = "bento";
         src = self;
 
+        patchPhase = ''
+            substituteInPlace bento --replace 'inotifywait' "${pkgs.inotify-tools}/bin/inotifywait";
+        '';
+
         installPhase = ''
           mkdir -p $out/bin
           mkdir -p $out/share