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authorEelco Dolstra <e.dolstra@tudelft.nl>2006-09-06T14·23+0000
committerEelco Dolstra <e.dolstra@tudelft.nl>2006-09-06T14·23+0000
commit2e210b2387904ada0417ad5a7502e4e40b852e02 (patch)
tree1deee458f12afebfcfaba70a89049966425e1853 /scripts/nix-collect-garbage.in
parent89ac8db74f1241c56b05f579cc1e04056de1a6ef (diff)
* Convenience option `nix-collect-garbage -d' (--delete-old): removes
  old generations of *all* profiles in /nix/var/nix/profiles, then
  runs the garbage collector.  Quick way to get rid of all old stuff.
  Of course, one cannot roll back to earlier points in time after
  this.

Diffstat (limited to 'scripts/nix-collect-garbage.in')
-rw-r--r--scripts/nix-collect-garbage.in44
1 files changed, 42 insertions, 2 deletions
diff --git a/scripts/nix-collect-garbage.in b/scripts/nix-collect-garbage.in
index 7ec9f349b18e..81975d2d3c4d 100644
--- a/scripts/nix-collect-garbage.in
+++ b/scripts/nix-collect-garbage.in
@@ -1,2 +1,42 @@
-#! @shell@ -e
-exec @bindir@/nix-store --gc "$@"
+#! @perl@ -w
+
+use strict;
+
+my $profilesDir = "@localstatedir@/nix/profiles";
+
+
+# Process the command line arguments.
+my @args = ();
+my $removeOld = 0;
+
+for my $arg (@ARGV) {
+    if ($arg eq "--delete-old" || $arg eq "-d") {
+        $removeOld = 1;
+    } else {
+        push @args, $arg;
+    }
+}
+
+
+# If `-d' was specified, remove all old generations of all profiles.
+# Of course, this makes rollbacks to before this point in time
+# impossible.
+if ($removeOld) {
+
+    opendir DIR, $profilesDir or die;
+
+    foreach my $name (sort (readdir DIR)) {
+        $name = $profilesDir . "/" . $name;
+        if (-l $name && (readlink($name) =~ /link/)) {
+            print STDERR "removing old generations of profile $name\n";
+            system "@bindir@/nix-env", "-p", $name, "--delete-generations", "old";
+        }
+    }
+    
+    closedir DIR or die;
+    
+}
+
+
+# Run the actual garbage collector.
+exec "@bindir@/nix-store", "--gc", @args;