diff options
| -rw-r--r-- | doc/manual/nix-collect-garbage.xml | 18 | ||||
| -rwxr-xr-x | scripts/nix-collect-garbage.in | 12 |
2 files changed, 22 insertions, 8 deletions
diff --git a/doc/manual/nix-collect-garbage.xml b/doc/manual/nix-collect-garbage.xml index a13e365a4e00..a97e3b7c6ba5 100644 --- a/doc/manual/nix-collect-garbage.xml +++ b/doc/manual/nix-collect-garbage.xml @@ -20,6 +20,7 @@ <command>nix-collect-garbage</command> <arg><option>--delete-old</option></arg> <arg><option>-d</option></arg> + <arg><option>--delete-older-than</option> <replaceable>period</replaceable></arg> <group choice='opt'> <arg choice='plain'><option>--print-roots</option></arg> <arg choice='plain'><option>--print-live</option></arg> @@ -35,13 +36,18 @@ <para>The command <command>nix-collect-garbage</command> is mostly an alias of <link linkend="rsec-nix-store-gc"><command>nix-store --gc</command></link>, that is, it deletes all unreachable paths in -the Nix store to clean up your system. However, it provides an -additional option <option>-d</option> (<option>--delete-old</option>) -that deletes all old generations of all profiles in +the Nix store to clean up your system. However, it provides two +additional options: <option>-d</option> (<option>--delete-old</option>), +which deletes all old generations of all profiles in <filename>/nix/var/nix/profiles</filename> by invoking -<literal>nix-env --delete-generations old</literal> on all profiles. -Of course, this makes rollbacks to previous configurations -impossible.</para> +<literal>nix-env --delete-generations old</literal> on all profiles +(of course, this makes rollbacks to previous configurations +impossible); and +<option>--delete-older-than</option> <replaceable>period</replaceable>, +where period is a value such as <literal>30d</literal>, which deletes +all non-current generations that are older than the specified number of +days in all profiles in <filename>/nix/var/nix/profiles</filename>. +</para> </refsection> diff --git a/scripts/nix-collect-garbage.in b/scripts/nix-collect-garbage.in index 28b0c749f125..55e0ba7a6fab 100755 --- a/scripts/nix-collect-garbage.in +++ b/scripts/nix-collect-garbage.in @@ -8,12 +8,19 @@ my $profilesDir = "@localstatedir@/nix/profiles"; # Process the command line arguments. my @args = (); +my $arg; + my $removeOld = 0; +my $gen; my $dryRun = 0; -for my $arg (@ARGV) { +while ($arg = shift) { if ($arg eq "--delete-old" || $arg eq "-d") { $removeOld = 1; + $gen = "old"; + } elsif ($arg eq "--delete-older-than") { + $removeOld = 1; + $gen = shift; } elsif ($arg eq "--dry-run") { $dryRun = 1; } elsif ($arg eq "--help") { @@ -40,7 +47,8 @@ sub removeOldGenerations { $name = $dir . "/" . $name; if (-l $name && (readlink($name) =~ /link/)) { print STDERR "removing old generations of profile $name\n"; - system("$Nix::Config::binDir/nix-env", "-p", $name, "--delete-generations", "old", $dryRun ? "--dry-run" : ()); + + system("$Nix::Config::binDir/nix-env", "-p", $name, "--delete-generations", $gen, $dryRun ? "--dry-run" : ()); } elsif (! -l $name && -d $name) { removeOldGenerations $name; |