ZPM - the ultimate package manager
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Features
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binary installs

package metadata

package integrity
	gpg signatures
	sha256 sums
	sha3 sums

package contents integrity
	sha256 sums of installed files
	sha3 sums
	sha1 sums
	lists of directory contents

package database editing
	mark a file as a configuration file

repackaging
	creating a package from the current state of an installed package

package a tarball
	create a package from a tarball

package from stdin
	like cpio

package a directory
	like tar

build from shell scripts

rebuild a package

write ahead log for package filesystem operations
	it should always be possible for the package system
	to figure out if it was interrupted

install, uninstall, upgrade, and downgrade hooks

dependency tracking

network fetching of packages and package databases
reference counting of dynamic libs

simple packaging constructs
	use shell scripts where possible
	use shell functions as hooks and callbacks

A package is an SQLite database file.

Multiple packages in the same file.

need to mark a package as held for no automatic upgrade

configure to run a command after any package work

System Administration
---------------------

Install a package

	zpm install <pkgname>

Add a repository

	zpm repo add <repo_url>

List the files owned by a package

	zpm contents <pkgname>

Capture current state of configuration files

	zpm capture <pkgname>

Create a package file from an installed package

	zpm export <pkgname>

Extract file content from a package

	zpm extract <hash> <path>

Packaging Software
------------------

Build a package in the current directory

	zpm build

Create a package from a tarball

	zpm build -t <tarfile> <packagefile>

Import the contents of one package file into another

	zpm merge <basefile> <otherfile>

Create a package from a list of file names on stdin

	find <find_options> | zpm build -s <packagefile>

Create a new empty package

	zpm newpackage <packagefile>

Add a file to a package in a package db

	zpm addtopackage <packagefile> <filepath>

Mark a file as a configuration file

	zpm mark -c <packagefile> <path>

Mark a package as finished building

	zpm complete <packagefile> <packagename>

Utilities
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Show the elf libraries needed by a program or library

	zpm soneed <file>

Show the elf library provided by a library file

	zpm soname <file>

Get the sha256 hash of a file

	zpm hash <file>

Get the unix timestamp of a file

	zpm stat -f '%m' <file>

Get the uid of a file

	zpm stat -f '%u' <file>