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* nix-copy-closure: support ‘--dry-run’ and ‘--include-outputs’.

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This commit is contained in:
Eelco Dolstra 2011-10-18 21:21:22 +00:00
parent 6761757428
commit f186a9141e
1 changed files with 23 additions and 10 deletions
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25
scripts/nix-copy-closure.in
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@ -24,6 +24,10 @@ my $decompressor = "";
my $toMode = 1; my $toMode = 1;
my $includeOutputs = 0;
my $dryRun = 0;
# !!! Copied from nix-pack-closure, should put this in a module. # !!! Copied from nix-pack-closure, should put this in a module.
my @storePaths = (); my @storePaths = ();
@ -44,6 +48,12 @@ while (@ARGV) {
elsif ($arg eq "--to") { elsif ($arg eq "--to") {
$toMode = 1; $toMode = 1;
} }
elsif ($arg eq "--include-outputs") {
$includeOutputs = 1;
}
elsif ($arg eq "--dry-run") {
$dryRun = 1;
}
elsif (!defined $sshHost) { elsif (!defined $sshHost) {
$sshHost = $arg; $sshHost = $arg;
} }
@ -59,7 +69,7 @@ openSSHConnection $sshHost or die "$0: unable to start SSH\n";
if ($toMode) { # Copy TO the remote machine. if ($toMode) { # Copy TO the remote machine.
# Get the closure of this path. # Get the closure of this path.
my @allStorePaths = reverse(topoSortPaths(computeFSClosure(0, 0, map { followLinksToStorePath $_ } @storePaths))); my @allStorePaths = reverse(topoSortPaths(computeFSClosure(0, $includeOutputs, map { followLinksToStorePath $_ } @storePaths)));
# Ask the remote host which paths are invalid. # Ask the remote host which paths are invalid.
open(READ, "set -f; ssh $sshHost @sshOpts nix-store --check-validity --print-invalid @allStorePaths|"); open(READ, "set -f; ssh $sshHost @sshOpts nix-store --check-validity --print-invalid @allStorePaths|");
@ -74,11 +84,12 @@ if ($toMode) { # Copy TO the remote machine.
if (scalar @missing > 0) { if (scalar @missing > 0) {
print STDERR "copying these missing paths:\n"; print STDERR "copying these missing paths:\n";
print STDERR " $_\n" foreach @missing; print STDERR " $_\n" foreach @missing;
my $extraOpts = ""; unless ($dryRun) {
$extraOpts .= "--sign" if $sign == 1; my $extraOpts = $sign ? "--sign" : "";
system("set -f; nix-store --export $extraOpts @missing $compressor | ssh $sshHost @sshOpts '$decompressor nix-store --import'") == 0 system("set -f; nix-store --export $extraOpts @missing $compressor | ssh $sshHost @sshOpts '$decompressor nix-store --import'") == 0
or die "copying store paths to remote machine `$sshHost' failed: $?"; or die "copying store paths to remote machine `$sshHost' failed: $?";
} }
}
} }
@ -87,8 +98,9 @@ else { # Copy FROM the remote machine.
# Query the closure of the given store paths on the remote # Query the closure of the given store paths on the remote
# machine. Paths are assumed to be store paths; there is no # machine. Paths are assumed to be store paths; there is no
# resolution (following of symlinks). # resolution (following of symlinks).
my $extraOpts = $includeOutputs ? "--include-outputs" : "";
my $pid = open(READ, my $pid = open(READ,
"set -f; ssh @sshOpts $sshHost nix-store --query --requisites @storePaths|") or die; "set -f; ssh @sshOpts $sshHost nix-store --query --requisites $extraOpts @storePaths|") or die;
while (<READ>) { while (<READ>) {
chomp; chomp;
@ -102,10 +114,11 @@ else { # Copy FROM the remote machine.
if (scalar @missing > 0) { if (scalar @missing > 0) {
print STDERR "copying these missing paths:\n"; print STDERR "copying these missing paths:\n";
print STDERR " $_\n" foreach @missing; print STDERR " $_\n" foreach @missing;
my $extraOpts = ""; unless ($dryRun) {
$extraOpts .= "--sign" if $sign == 1; my $extraOpts = $sign ? "--sign" : "";
system("set -f; ssh $sshHost @sshOpts 'nix-store --export $extraOpts @missing $compressor' | $decompressor $Nix::Config::binDir/nix-store --import") == 0 system("set -f; ssh $sshHost @sshOpts 'nix-store --export $extraOpts @missing $compressor' | $decompressor $Nix::Config::binDir/nix-store --import") == 0
or die "copying store paths from remote machine `$sshHost' failed: $?"; or die "copying store paths from remote machine `$sshHost' failed: $?";
} }
}
} }