How to add pre-build step in qmake/qtcreator?

version-control qmake prebuild build-numbers
Vi. picture Vi. · Feb 22, 2011 · Viewed 9.8k times · Source

I want the compiled application to have the commit number, source files checksums and other things to be available during the compilation.

In plain Makefiles I do like this:

prog: VERSION source.c
    gcc -DVERSION=\"$(shell cat VERSION)\" source.c -o prog 

VERSION: .git
    git describe > VERSION

How to use something similar with qmake?

Answer

jwernerny picture jwernerny · Mar 3, 2011

If you were to pass the version information as an included file (let's say "version.h") instead of a #define, then you could add the following to your qmake file

# Define how to create version.h
version.target = version.h
version.commands = <PUT_YOUR_COMMANDS_HERE>
version.depends = .git

QMAKE_EXTRA_TARGETS += version

PRE_TARGETDEPS += version.h

The first 3 lines tell how to make a new target object called "version" that generates "version.h". It is made by executing the commands "<PUT_YOUR_COMMANDS_HERE>". The target is dependent on ".git"

The "QMAKE_EXTRA_TARGETS" says there is a new target known as "version".

The "PRE_TARGETDEPS" indicates that "version.h" needs to exist before anything else can be done (which forces it to be made if it isn't already made).

Related questions

How do I undo the most recent local commits in Git?

I accidentally committed the wrong files to Git, but didn't push the commit to the server yet. How can I undo those commits from the local repository?

Read More
How do I delete a Git branch locally and remotely?

I want to delete a branch both locally and remotely. Failed Attempts to Delete a Remote Branch $ git branch -d remotes/origin/bugfix error: branch 'remotes/origin/bugfix' not found. $ git branch -d origin/bugfix error: branch 'origin/bugfix' not …

Read More
How do I force "git pull" to overwrite local files?

How do I force an overwrite of local files on a git pull? The scenario is the following: A team member is modifying the templates for a website we are working on They are adding some images to the images …

Read More