conf/fragments: add a fragment for CDN sstate mirror

This will be used in bitbake-setup official configurations and
it will be awesome.

Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/conf/fragments/yocto/sstate-mirror-cdn.conf b/meta/conf/fragments/yocto/sstate-mirror-cdn.conf
new file mode 100644 (file)
index 0000000..e204975
--- /dev/null
+++ b/meta/conf/fragments/yocto/sstate-mirror-cdn.conf
@@ -0,0 +1,12 @@
+BB_CONF_FRAGMENT_SUMMARY = "Use prebuilt sstate artifacts for standard Yocto build configurations."
+BB_CONF_FRAGMENT_DESCRIPTION = "The Yocto Project has prebuilt artefacts available for standard build configurations. \
+This fragment enables their use. This will mean the build will query the \
+the network to check for artefacts at the start of builds, which does slow it down \
+initially but it will then speed up the builds by not having to build things if they are \
+present in the cache. It assumes you can download something faster than you can build it \
+which will depend on your network. \
+Note: For this to work you also need hash-equivalence passthrough to the matching server \
+"
+
+BB_HASHSERVE_UPSTREAM = 'wss://hashserv.yoctoproject.org/ws'
+SSTATE_MIRRORS ?= "file://.* http://sstate.yoctoproject.org/all/PATH;downloadfilename=PATH"