gluon-firmware/docs/dev/build.rst

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Build system
============
This page explains internals of the Gluon build system. It is currently very
incomplete; please contribute if you can!
Feed management
---------------
Rather that relying on the *feed.conf* mechanism of OpenWrt directly, Gluon
manages its feeds (*"modules"*) using a collection of scripts. This solution was
selected for multiple reasons:
- Feeds lists from Gluon base and the site repository are combined
- Patchsets are applied to downloaded feed repositories automatically
The following variables specifically affect the feed management:
GLUON_FEEDS
List of base feeds; defined in file *modules* in Gluon base
GLUON_SITE_FEED
List of site feeds; defined in file *modules* in site config
\*_REPO, \*_BRANCH, \*_COMMIT
Git repository URL, branch and and
commit ID of the feeds to use. The branch name may be omitted; the default
branch will be used in this case.
GLUON_BASE_FEEDS
Additional feed definitions to be added to *feeds.conf*
verbatim. By default, this contains a reference to the Gluon base packages;
when using the Gluon build system to build a non-Gluon system, the variable
can be set to the empty string.