Simple Turris OS building script
Getting started
Create an empty directory you want to build Turris OS in, enter that directory
and from it call compile_fw script. In most basic use-case, this should be
enough. Be aware - it will delete all previous content of the current
directory. You can repeat individual steps of the compilation separately,
check compile_fw help for a list of available commands, generic options and
their brief descriptions.
Advanced usage
Configuration
Default config for OpenWRT is put in configs directory either in directory
common or in a directory named after the target board. Files in those
directories gets merged (common ones first) and will form the final .config
file. Some parts of compile_fw might modify it further.
Release notes
There is a NEWS file in this directory that contains version number and after
it lines with new features in the release. This file is used to generate
turris-version package. compile_fw script reads it, finds the newest
version and from notes underneath it creates the package with release notes.
Patching
If you need to patch OpenWRT or any of the feeds, put a git formatted patch
into respective subdirectory of patches directory. In patches directory, there
is openwrt directory and directory for each feed we are patching. Inside those
directories, patches are also divided into subdirectories like to-upstream,
wip or hack to somehow distinguish between quality of patches.
Rebasing patches
Sometimes patches no longer apply cleanly and needs to be rebased. The most simple way to do that, given that we have everything in git, is the following:
find . -name '*.rej' -delete # Clean all existing reject files git am --reject .../patches/.../xyz.patch # Try hard to apply patch find . -name '*.rej' # List all failed chunks
After those commands, we’ll get our git tree in partially merged state and
with few .rej files containing failed chunks. Actually, compile_fw script
by default cleans up checkout directory and applies patches with git am
--reject so if build fails, checkout ends up in the state similar to what can
be achieved by those commands. Files with .rej extension needs to be merged
manually and afterwards we need to call git add on newly patched files. Once
all conflicts are resolved, git am --continue will create real commit that we
were trying to add using git am. Now all that is left is to export it using
git format-patch -1 and overwrite patch stored in it of build repository.