build: adjust version number handling

Move the revision info to the VERSION_CODE variable and default VERSION_NUMBER
to CURRENT for master branch builds.

Also introduce a new menuconfig option CONFIG_VERSION_CODE which allows users
to override the revision value put into VERSION_CODE and adjust the template
files used by the base-files package to accomodate for the changed semantics.

While we're at it, also adjust the various URLs to match the current web site.

After this commit, the relevent files will look like the examples given below:

    # cat /etc/openwrt_version
    r2398+1

    # cat /etc/openwrt_release
    DISTRIB_ID='LEDE'
    DISTRIB_RELEASE='CURRENT'
    DISTRIB_REVISION='r2398+1'
    DISTRIB_CODENAME='reboot'
    DISTRIB_TARGET='x86/64'
    DISTRIB_DESCRIPTION='LEDE Reboot CURRENT r2398+1'
    DISTRIB_TAINTS='no-all override'

    # cat /usr/lib/os-release
    NAME="LEDE"
    VERSION="CURRENT, Reboot"
    ID="lede"
    ID_LIKE="lede openwrt"
    PRETTY_NAME="LEDE Reboot CURRENT"
    VERSION_ID="current"
    HOME_URL="http://lede-project.org/"
    BUG_URL="http://bugs.lede-project.org/"
    SUPPORT_URL="http://forum.lede-project.org/"
    BUILD_ID="r2398+1"
    LEDE_BOARD="x86/64"
    LEDE_TAINTS="no-all override"
    LEDE_DEVICE_MANUFACTURER="LEDE"
    LEDE_DEVICE_MANUFACTURER_URL="http://lede-project.org/"
    LEDE_DEVICE_PRODUCT="Generic"
    LEDE_DEVICE_REVISION="v0"
    LEDE_RELEASE="LEDE Reboot CURRENT r2398+1"

On a release branch, those files would look like:

    # cat /etc/openwrt_version
    r2399

    # cat /etc/openwrt_release
    DISTRIB_ID='LEDE'
    DISTRIB_RELEASE='16.12-CURRENT'
    DISTRIB_REVISION='r2399'
    DISTRIB_CODENAME='test_release'
    DISTRIB_TARGET='x86/64'
    DISTRIB_DESCRIPTION='LEDE Test Release 16.12-CURRENT r2399'
    DISTRIB_TAINTS='no-all override'

    # cat /usr/lib/os-release
    NAME="LEDE"
    VERSION="16.12-CURRENT, Test Release"
    ID="lede"
    ID_LIKE="lede openwrt"
    PRETTY_NAME="LEDE Test Release 16.12-CURRENT"
    VERSION_ID="16.12-current"
    HOME_URL="http://lede-project.org/"
    BUG_URL="http://bugs.lede-project.org/"
    SUPPORT_URL="http://forum.lede-project.org/"
    BUILD_ID="r2399"
    LEDE_BOARD="x86/64"
    LEDE_TAINTS="no-all override"
    LEDE_DEVICE_MANUFACTURER="LEDE"
    LEDE_DEVICE_MANUFACTURER_URL="http://lede-project.org/"
    LEDE_DEVICE_PRODUCT="Generic"
    LEDE_DEVICE_REVISION="v0"
    LEDE_RELEASE="LEDE Test Release 16.12-CURRENT r2399"

On a release tag, those files would look like:

    # cat /etc/openwrt_version
    r2500

    # cat /etc/openwrt_release
    DISTRIB_ID='LEDE'
    DISTRIB_RELEASE='17.02.1'
    DISTRIB_REVISION='r2500'
    DISTRIB_CODENAME='mighty_unicorn'
    DISTRIB_TARGET='x86/64'
    DISTRIB_DESCRIPTION='LEDE Mighty Unicorn 17.02.1 r2500'
    DISTRIB_TAINTS='no-all override'

    # cat /usr/lib/os-release
    NAME="LEDE"
    VERSION="17.02.1, Mighty Unicorn"
    ID="lede"
    ID_LIKE="lede openwrt"
    PRETTY_NAME="LEDE Mighty Unicorn 17.02.1"
    VERSION_ID="17.02.1"
    HOME_URL="http://lede-project.org/"
    BUG_URL="http://bugs.lede-project.org/"
    SUPPORT_URL="http://forum.lede-project.org/"
    BUILD_ID="r2500"
    LEDE_BOARD="x86/64"
    LEDE_TAINTS="no-all override"
    LEDE_DEVICE_MANUFACTURER="LEDE"
    LEDE_DEVICE_MANUFACTURER_URL="http://lede-project.org/"
    LEDE_DEVICE_PRODUCT="Generic"
    LEDE_DEVICE_REVISION="v0"
    LEDE_RELEASE="LEDE Mighty Unicorn 17.02.1 r2500"

Signed-off-by: Jo-Philipp Wich <jo@mein.io>
Acked-by: Felix Fietkau <nbd@nbd.name>

1 files changed, 16 insertions, 7 deletions

diff --git a/package/base-files/image-config.in b/package/base-files/image-config.in
index 43d3859301..4610c2b995 100644
--- a/package/base-files/image-config.in
+++ b/package/base-files/image-config.in
@@ -175,8 +175,17 @@ if VERSIONOPT
 		prompt "Release version number"
 		help
 			This is the release version number embedded in the image.
-			If unspecified, it defaults to the svn or git-svn revision
-			of the build tree.
+			If unspecified, it defaults to CURRENT for the master branch
+			or to ##.##-CURRENT on release branches.
+
+	config VERSION_CODE
+		string
+		prompt "Release version code"
+		help
+			This is the release version code embedded in the image.
+			If unspecified, it defaults to a revision number describing the
+			repository version of the source, e.g. the number of commits
+			since a branch point or a short Git commit ID.
 
 	config VERSION_REPO
 		string
@@ -185,11 +194,11 @@ if VERSIONOPT
 		help
 			This is the repository address embedded in the image, it defaults
 			to the trunk snapshot repo; the url may contain the following placeholders:
-			 %R .. Revision number
-			 %V .. Release version or revision number, uppercase
-			 %v .. Release version or revision number, lowercase
-			 %C .. Release version or "HEAD", uppercase
-			 %c .. Release version or "head", lowercase
+			 %R .. Repository revision ID
+			 %V .. Configured release version number or "CURRENT", uppercase
+			 %v .. Configured release version number or "current", lowercase
+			 %C .. Configured release revision code or value of %R, uppercase
+			 %c .. Configured release revision code or value of %R, lowercase
 			 %N .. Release name, uppercase
 			 %n .. Release name, lowercase
 			 %D .. Distribution name or "Lede", uppercase