seedrng: init at 2022.04

Signed-off-by: Raito Bezarius <masterancpp@gmail.com>

pkgs/default.nix

@@ -115,6 +115,7 @@ in {
   # vendor OS, or even to derisk Liminix updates on that device
   schnapps = callPackage ./schnapps { };
 
+  seedrng = callPackage ./seedrng {};
   serviceFns = callPackage ./service-fns { };
   swconfig = callPackage ./swconfig { };
   systemconfig = callPackage ./systemconfig { };

pkgs/devout/devout.fnl

@@ -131,6 +131,7 @@
 (fn unix-socket [name]
   (let [addr (string.pack "=Hz" AF_LOCAL name)
         fd (check-errno (ll.socket AF_LOCAL SOCK_STREAM 0))]
+    (os.remove name)
     (check-errno (ll.bind fd addr))
     (check-errno (ll.listen fd 32))
     fd))

pkgs/json-to-fstree/json-to-fstree.fnl

@@ -4,19 +4,25 @@
 (local { : utime } (require :lualinux))
 
 (fn download [url dest]
-  (match (http.fetch url)
-    (nil code str)
-    (assert nil (.. "error " code ": " str))
+  (let [state (.. dest "/state")
+        previously (ll.lstat state 12)]
+    (match (http.fetch url "i" previously)
+      (nil 10 _) ; not modified
+      (print (.. url " not modified, already up to date"))
 
-    (body { : last-modified })
-    (let [service (svc.open dest)
-          lock (.. dest "/.lock")
-          state (.. dest "/state")]
-      (with-open [fout (io.open lock :w)] (fout:write ""))
-      (service:output "." (json.decode body))
-      (with-open [fout (io.open state :w)] (fout:write "ok"))
-      (os.remove lock)
-      (utime dest last-modified))))
+      (nil code str)
+      (assert nil (.. "error " code ": " str))
+
+      (body { : last-modified })
+      (let [service (svc.open dest)
+            lock (.. dest "/.lock")]
+        (with-open [fout (io.open lock :w)] (fout:write ""))
+        (service:output "." (json.decode body))
+        (with-open [fout (io.open state :w)] (fout:write "ok"))
+        (utime state last-modified)
+        (os.remove lock))
+
+      )))
 
 (fn run [] (download (. arg 1) (. arg 2)))
 

pkgs/watch-outputs/watch-outputs.fnl

@@ -1,4 +1,4 @@
-(local { : system : assoc : split : table= : dig } (require :anoia))
+(local { : %% : system : assoc : split : table= : dig } (require :anoia))
 (local svc (require :anoia.svc))
 (local { : view } (require :fennel))
 (local { : kill } (require :lualinux))
@@ -27,8 +27,6 @@
                _ path (ipairs paths)]
     (or changed? (not (table= (dig old-tree path) (dig new-tree path))))))
 
-(fn %% [fmt ...] (string.format fmt ...))
-
 (fn do-action [action service]
   (case action
     :restart (system (%% "s6-svc -r /run/service/%s" service))
@@ -42,9 +40,8 @@
          : watched-service
          : paths } (parse-args arg)
         dir (.. watched-service "/.outputs")
-        _ (print :service-dir dir)
         service (assert (svc.open dir))]
-    (print "watching " watched-service)
+    (print (%% "watching %q" watched-service))
     (accumulate [tree (service:output ".")
                  v (service:events)]
       (let [new-tree (service:output ".")]