From 63550987b45107b490d84be35f4e9bc711d755de Mon Sep 17 00:00:00 2001
From: jri <julius.riegel@unitb.de>
Date: Thu, 7 Mar 2024 13:06:29 +0100
Subject: [PATCH] Add script to automatically link nix applications to
 ~/.local/share/applications

---
 content/config/home-manager/home.nix.tmpl |  1 +
 hooks/home-manager.nu                     | 38 +++++++++++++++++++++++
 2 files changed, 39 insertions(+)

diff --git a/content/config/home-manager/home.nix.tmpl b/content/config/home-manager/home.nix.tmpl
index 301507c..8d12438 100644
--- a/content/config/home-manager/home.nix.tmpl
+++ b/content/config/home-manager/home.nix.tmpl
@@ -25,6 +25,7 @@
     librewolf
     spotify
 
+
     # other dev tools
     insomnia
 
diff --git a/hooks/home-manager.nu b/hooks/home-manager.nu
index fdfe5b8..6364482 100644
--- a/hooks/home-manager.nu
+++ b/hooks/home-manager.nu
@@ -1,4 +1,8 @@
 def after_apply_all [] {
+  if $env.SILO_HM_CALLED? != null {
+    return;
+  }
+  $env.SILO_HM_CALLED = true
   if not ('~/.nix-profile/bin/home-manager' | path exists) {
     print $"(ansi red)home-manager is not installed(ansi reset)"
     return
@@ -16,14 +20,48 @@ def after_apply_all [] {
   print "Cleaning nix store"
   ( nix-store --gc )
 
+  print "Linking applications"
+  link-applications
+
+  print "Clearing invalid application links"
+  clear-invalid-links
+
+  print "Applying silo config after package install"
+  ( silo apply )
   ignore
 }
 
 def --env before_apply_all [] {
+  if $env.SILO_HM_CALLED? != null {
+    return;
+  }
   $env.SILO_HA_CHKSUM = (ha-chksum)
+  $env.PATH = ($env.PATH | append $"($env.HOME)/.nix-profile/bin")
+  ignore
 }
 
 def ha-chksum [] {
   shasum ~/.config/home-manager/home.nix
 }
 
+def link-applications [] {
+  ( glob ~/.nix-profile/share/applications/*.desktop 
+  | par-each { try { ln -s $in ~/.local/share/applications/; print $"Linked ($in)" } } )
+}
+
+def clear-invalid-links [] {
+  ( glob /home/jri/.local/share/applications/*.desktop 
+  | each { ls -l $in } 
+  | flatten 
+  | where target? != null 
+  | par-each {|entry| get target 
+    | open $in 
+    | parse -r '\nTryExec\s?=\s?(?<bin>[^\n]+)' 
+    | get -i 0 
+    | default {} 
+    | merge $entry } 
+  | where bin? != null 
+  | where {|e| which $e.bin | is-empty } 
+  | each {|e| rm $e.name; print $"Cleared ($e.name)" } 
+  )
+}