Craft

From KDE Community Wiki

Craft is an open source meta build system and package manager. It manages dependencies and builds libraries and applications from source, on Windows, Mac, Linux and FreeBSD.

Setting up Craft

Start crafting on Windows

Start crafting on Linux

Start crafting on Mac

Start crafting on FreeBSD

Common Craft commands

Searching for a package 

craft --search packagename

Installing a package (and dependencies) 

craft packagename

Updating a package 

craft -i packagename

Switching to the source directory of a package: 

cs packagename

Switching to the build directory of a package: 

cb packagename

Compiling a package (i.e. if you just modified the source code and want to test-compile): 

craft --compile packagename

Creating an installer (or .dmg bundle, ...) for a specific package: 

craft --package kdevelop

The option Packager/PackageType in CraftSettings.ini controls which type of installer is created

For Developing with Craft

When developing on a specific application, you may want to develop on its library as well. Installing the library: 

 craft --ignoreInstalled --no-cache <somelib>

For the applications to run with changes to the source of the package: 

 craft --compile --install --qmerge <somelib>

Uninstalling a package 

craft --unmerge packagename
EXAMPLES

Updating Craft itself: 

craft -i craft

Updating the blueprints: 

craft -i craft-blueprints-kde

Adding new blueprints

Blueprints are stored in separate repositories. At the moment there are these repositories:

To navigate to this repository on your local file system, type in: 

cs craft-blueprints-kde

Open a file browser in that folder and start adding new recipes by copying from existing ones. Note that the name of the package folder needs to match the blueprint name -- an example would be "kdegraphics-mobipocket\kdegraphics-mobipocket.py"

Advanced tips

Hardcode versions of packages

To build a non default version (or to build from master) 

 craft --set version=some_version packagename

Here, replace some_version with the branch name of the source git repository of the package (like master) or version number (for eg: 0.57.0, 0.58.0). Alternatively ,edit $CraftRoot/etc/BlueprintSettings.ini and add: 

 [category/packagename]
 version = branch
Examples

For example, to install master branch of khtml, the line to be appended should look like: 

[frameworks/khtml]
version = master

To change the version of all packages of a category, like libs/qt5 add 

 [libs/qt5]
 version = 5.9.3

Using Craft with Qt Creator

Windows

To compile from within Qt Creator, I need to set up a kit. This is an example for mingw64.

  • Add a cmake if none is set: C:\CraftRoot\dev-utils\cmake\bin\cmake.exe
  • Add a debugger: C:\CraftRoot\mingw64\bin\gdb.exe
  • Add a C++ compiler and a C compiler. Both: C:\CraftRoot\mingw64\bin\gcc.exe
    • Ensure that the ABI is correctly set
  • Add a Qt: C:\CraftRoot\bin\qmake.exe
  • Add a kit with all of the above
  • Use the kit on a project
  • Setup cmake configuration (all case):
    • Extend CMAKE_PREFIX_PATH, add the Craft prefix path (ie: CMAKE_PREFIX_PATH:STRING=%{Qt:QT_INSTALL_PREFIX};C:\CraftRoot)
    • Edit Build Environment settings under Projects pane and modify PATH variable to include C:\CraftRoot\bin and C:\CraftRoot\mingw64\bin

MacOS

To be able to use Craft libs in your cmake project from QtCreator follow these steps:

  • If the QtVersion used by Craft is not already registered in QtC, then create a new QtVersion by pointing it to the qmake used by Craft
  • Create a new kit by duplicating an existing one or creating a new one from scratch
  • Setup properties of the kit (for from scratch kit):
    • Set cmake binary to the one used by Craft
    • Set debugger binary to the one used by Craft
    • Set C++ and C compiler to the one used by Craft
    • Select the correct QtVersion
    • Ensure abi is correct
  • Setup cmake configuration (all case):
    • Extend CMAKE_PREFIX_PATH, add the Craft prefix path (ie: CMAKE_PREFIX_PATH:STRING=%{Qt:QT_INSTALL_PREFIX};/Volumes/Projects/Developers/Craft)
  • Apply, and now use this Kit for your cmake project

Troubleshooting

If a package fails to build, you'll be greeted with something like: 

 ...
 craft warning: while running make cmd: jom
 craft warning: Action: compile for libs/qt5/qtbase FAILED
 *** Craft all failed: all of libs/qtbase failed after 0:07:25 ***
 craft error: fatal error: package libs/qtbase all failed

In order to figure out what failed, grep the command line output above for errors.

Or have a look at the log file located in $HOME/.craft (%USERPROFILE%\.craft on Windows) which will contain much more details.

Search for "error", or "error:" in the file.

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