Build tool for C.
A build tool and package manager configured using Dhall.
cpkg
cpkg is a build tool for C with a particular emphasis on cross compilation. It is configured using Dhall.
By considering a package to be a function taking a cpkg-supplied installation directory to a series of steps, we can effectively package C projects with diverse build systems and handle dependencies between them.
This tool provides reasonably good support for cross-compilation of C projects and packages. It is not a full-fledged package manager.
Installation
cabal new-install cpkg
Shell Completions
Add the following to your ~/.bashrc for shell completions:
eval "$(cpkg --bash-completion-script cpkg)"
Packages
To view available packages, use cpkg list
vanessa@thinkpad ~/programming/haskell/done/cpkg šø cpkg list
autoconf
url: https://ftp.gnu.org/gnu/autoconf/autoconf-2.69.tar.xz
version: 2.69
build dependencies: m4
automake
url: https://ftp.gnu.org/gnu/automake/automake-1.16.1.tar.xz
version: 1.16.1
build dependencies: autoconf
at-spi2-atk
url: http://ftp.gnome.org/pub/gnome/sources/at-spi2-atk/2.30/at-spi2-atk-2.30.0.tar.xz
version: 2.30.0
dependencies: at-spi2-core, atk, libxml2
build dependencies: meson, ninja
at-spi2-core
url: http://ftp.gnome.org/pub/gnome/sources/at-spi2-core/2.30/at-spi2-core-2.30.0.tar.xz
version: 2.30.0
dependencies: libXtst, glib
build dependencies: meson, ninja
atk
url: https://ftp.gnome.org/pub/gnome/sources/atk/2.30/atk-2.30.0.tar.xz
version: 2.30.0
build dependencies: gobject-introspection
ā®
Example
To install tar:
cpkg install tar
To install emacs:
cpkg install emacs
Configuration
Here is the configuration for Lua:
let prelude = https://raw.githubusercontent.com/vmchale/cpkg/master/dhall/cpkg-prelude.dhall
in
let lua =
Ī»(v : List Natural) ā
let printLuaOS =
Ī»(os : types.OS) ā
merge
{ FreeBSD = Ī»(_ : {}) ā "freebsd"
, OpenBSD = Ī»(_ : {}) ā "bsd"
, NetBSD = Ī»(_ : {}) ā "bsd"
, Solaris = Ī»(_ : {}) ā "solaris"
, Dragonfly = Ī»(_ : {}) ā "bsd"
, Linux = Ī»(_ : {}) ā "linux"
, Darwin = Ī»(_ : {}) ā "macosx"
, Windows = Ī»(_ : {}) ā "mingw"
, Redox = Ī»(_ : {}) ā "generic"
, Haiku = Ī»(_ : {}) ā "generic"
, IOS = Ī»(_ : {}) ā "generic"
, AIX = Ī»(_ : {}) ā "generic"
, Hurd = Ī»(_ : {}) ā "generic"
, Android = Ī»(_ : {}) ā "generic"
, NoOs = Ī»(_ : {}) ā "c89"
}
os
in
let luaBuild =
Ī»(cfg : types.BuildVars) ā
let cc = prelude.mkCCArg cfg
in
let ldflags =
(prelude.mkLDFlags cfg.linkDirs).value
in
let cflags =
(prelude.mkCFlags cfg.includeDirs).value
in
let os =
prelude.osCfg cfg
in
[ prelude.call (prelude.defaultCall ā«½ { program = "make"
, arguments = cc # [ printLuaOS os, "MYLDFLAGS=${ldflags}", "MYCFLAGS=${cflags}", "MYLIBS=-lncurses" ]
})
]
in
let luaInstall =
Ī»(cfg : types.BuildVars) ā
[ prelude.call (prelude.defaultCall ā«½ { program = "make"
, arguments = [ "install", "INSTALL_TOP=${cfg.installDir}" ]
}) ]
# prelude.symlinkBinaries [ "bin/lua", "bin/luac" ]
in
prelude.simplePackage { name = "lua", version = v } ā«½
{ pkgUrl = "http://www.lua.org/ftp/lua-${prelude.showVersion v}.tar.gz"
, configureCommand = prelude.doNothing
, buildCommand = luaBuild
, installCommand = luaInstall
, pkgDeps = [ prelude.unbounded "readline"
, prelude.unbounded "ncurses"
]
}
in
lua [5,3,5]
Cabal Integration
After running
cpkg install libX11 --target=arm-linux-gnueabihf
cpkg install libXext --target=arm-linux-gnueabihf
cpkg install libXrandr --target=arm-linux-gnueabihf
cpkg install libXinerama --target=arm-linux-gnueabihf
cpkg install libXScrnSaver --target=arm-linux-gnueabihf
You can dump flags to be passed to cabal with
cpkg dump-cabal libX11 libXext libXrandr libXinerama libXScrnSaver --target=arm-linux-gnueabihf
which will produce something like
--extra-lib-dirs=/home/vanessa/.cpkg/arm-linux-gnueabihf/libX11-1.6.7-820c8166b4caadb/lib --extra-lib-dirs=/home/vanessa/.cpkg/arm-linux-gnueabihf/libXext-1.3.3-1bad0a89c6794a53/lib --extra-lib-dirs=/home/vanessa/.cpkg/arm-linux-gnueabihf/libXrandr-1.5.1-f58f951a622e5c2/lib --extra-lib-dirs=/home/vanessa/.cpkg/arm-linux-gnueabihf/libXinerama-1.1.4-516496f7e04d34be/lib --extra-lib-dirs=/home/vanessa/.cpkg/arm-linux-gnueabihf/libXScrnSaver-1.2.3-60f6993b79a87725/lib
This could be used, for example, to cross-compile xmonad, viz.
cabal new-install xmonad --with-ghc arm-linux-gnueabihf-ghc --with-ghc-pkg arm-linux-gnueabihf-ghc-pkg $(cpkg dump-cabal libX11 libXext libXrandr libXinerama libXScrnSaver --target=arm-linux-gnueabihf)
Dhall Prelude
There is a prelude available containing functions which simplify the process of writing package descriptions. As an example, we can install sed
let prelude = https://raw.githubusercontent.com/vmchale/cpkg/master/dhall/cpkg-prelude.dhall
in
let sed =
Ī»(v : List Natural) ā
prelude.makeGnuExe { name = "sed", version = v }
in
sed [4,5]
Known Deficiencies
Security
This tool is insecure.
Performance
This tool is not performant.
Dependency Solver
Currently, there is no dependency solver. It should be relatively easy to add a version-based dependency solver to the code.
Garbage Collection
Currently, there is no garbage collector Ć la $ nix-collect-garbage. This will not be relatively easy to add, because it will require that the global package index be re-implemented (ideally using a proper database).
Contents
Lovingly provided by polyglot:
āāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāā
Language Files Lines Code Comments Blanks
āāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāā
Bash 4 58 49 3 6
Cabal 1 165 147 0 18
Cabal Project 1 4 3 0 1
Dhall 5 6412 5724 0 688
Haskell 32 1999 1643 37 319
Makefile 1 12 8 0 4
Markdown 3 556 448 0 108
YAML 4 114 110 0 4
āāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāā
Total 51 9320 8132 40 1148
āāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāā