repo@debian8:~$ aptly publish update hac hac-repo
Loading packages...
Generating metadata files and linking package files...
panic: unable to unxz data.tar.xz from /home/repo/aptly/pool/7f/b4/glusterfs-client_3.5.3-1_amd64.deb: exec: "xz": executable file not found in $PATH [recovered]
	panic: unable to unxz data.tar.xz from /home/repo/aptly/pool/7f/b4/glusterfs-client_3.5.3-1_amd64.deb: exec: "xz": executable file not found in $PATH

goroutine 1 [running]:
github.com/smira/aptly/cmd.Run.func1(0xc820477f18)
	/Users/smira/Documents/go/src/github.com/smira/aptly/cmd/run.go:16 +0x7f
github.com/smira/aptly/deb.(*Package).CalculateContents(0xc8209ef200, 0x7fb5a3c82138, 0xc820161020, 0x0, 0x0, 0x0)
	/Users/smira/Documents/go/src/github.com/smira/aptly/deb/package.go:427 +0x1b4
github.com/smira/aptly/deb.(*PackageCollection).loadContents(0xc8201610e0, 0xc8209ef200, 0x7fb5a3c82138, 0xc820161020, 0x0, 0x0, 0x0)
	/Users/smira/Documents/go/src/github.com/smira/aptly/deb/package_collection.go:183 +0x37b
github.com/smira/aptly/deb.(*Package).Contents(0xc8209ef200, 0x7fb5a3c82138, 0xc820161020, 0x0, 0x0, 0x0)
	/Users/smira/Documents/go/src/github.com/smira/aptly/deb/package.go:410 +0x75
github.com/smira/aptly/deb.(*ContentsIndex).Push(0xc8201e0c40, 0xc8209ef200, 0x7fb5a3c82138, 0xc820161020)
	/Users/smira/Documents/go/src/github.com/smira/aptly/deb/contents.go:26 +0x4a
github.com/smira/aptly/deb.(*PublishedRepo).Publish.func1(0xc8209ef200, 0x0, 0x0)
	/Users/smira/Documents/go/src/github.com/smira/aptly/deb/publish.go:568 +0x8d5
github.com/smira/aptly/deb.(*PackageList).ForEachIndexed(0xc8200862c0, 0xc8204776c0, 0x0, 0x0)
	/Users/smira/Documents/go/src/github.com/smira/aptly/deb/list.go:169 +0xed
github.com/smira/aptly/deb.(*PublishedRepo).Publish(0xc820190680, 0x7fb5a3c82138, 0xc820161020, 0x7fb5a3c821f0, 0xc8200cee70, 0xc820014300, 0x7fb5a3c820e0, 0xc820018ae0, 0x7fb5a3c82180, 0xc820106840, ...)
	/Users/smira/Documents/go/src/github.com/smira/aptly/deb/publish.go:593 +0x1135
github.com/smira/aptly/cmd.aptlyPublishUpdate(0xc8201687e0, 0xc820163da0, 0x2, 0x2, 0x0, 0x0)
	/Users/smira/Documents/go/src/github.com/smira/aptly/cmd/publish_update.go:61 +0xa98
github.com/smira/commander.(*Command).Dispatch(0xc8201687e0, 0xc820163da0, 0x2, 0x2, 0x0, 0x0)
	/Users/smira/Documents/go/src/github.com/smira/aptly/_vendor/src/github.com/smira/commander/commands.go:305 +0x647
github.com/smira/commander.(*Command).Dispatch(0xc820168900, 0xc820163d90, 0x3, 0x3, 0x0, 0x0)
	/Users/smira/Documents/go/src/github.com/smira/aptly/_vendor/src/github.com/smira/commander/commands.go:283 +0x1f0
github.com/smira/commander.(*Command).Dispatch(0xc8201690e0, 0xc820163d80, 0x4, 0x4, 0x0, 0x0)
	/Users/smira/Documents/go/src/github.com/smira/aptly/_vendor/src/github.com/smira/commander/commands.go:283 +0x1f0
github.com/smira/aptly/cmd.Run(0xc8201690e0, 0xc82000a060, 0x4, 0x4, 0xd3ed01, 0x0)
	/Users/smira/Documents/go/src/github.com/smira/aptly/cmd/run.go:40 +0x19a
main.main()
	/Users/smira/Documents/go/src/github.com/smira/aptly/main.go:9 +0x73

goroutine 6 [syscall]:
os/signal.loop()
	/usr/local/Cellar/go/1.5.3/libexec/src/os/signal/signal_unix.go:22 +0x18
created by os/signal.init.1
	/usr/local/Cellar/go/1.5.3/libexec/src/os/signal/signal_unix.go:28 +0x37

goroutine 7 [runnable]:
github.com/syndtr/goleveldb/leveldb/util.(*BufferPool).drain(0xc820148380)
	/Users/smira/Documents/go/src/github.com/smira/aptly/_vendor/src/github.com/syndtr/goleveldb/leveldb/util/buffer_pool.go:206 +0x29d
created by github.com/syndtr/goleveldb/leveldb/util.NewBufferPool
	/Users/smira/Documents/go/src/github.com/smira/aptly/_vendor/src/github.com/syndtr/goleveldb/leveldb/util/buffer_pool.go:237 +0x26b

goroutine 19 [sleep]:
time.Sleep(0xbebc200)
	/usr/local/Cellar/go/1.5.3/libexec/src/runtime/time.go:59 +0xf9
github.com/cheggaaa/pb.(*ProgressBar).writer(0xc820219860)
	/Users/smira/Documents/go/src/github.com/smira/aptly/_vendor/src/github.com/cheggaaa/pb/pb.go:332 +0x5b
created by github.com/cheggaaa/pb.(*ProgressBar).Start
	/Users/smira/Documents/go/src/github.com/smira/aptly/_vendor/src/github.com/cheggaaa/pb/pb.go:101 +0x9c