package: drop PKG_VERSION for purely local packages

In the package guidelines, PKG_VERSION is supposed to be used as
"The upstream version number that we're downloading", while
PKG_RELEASE is referred to as "The version of this package Makefile".
Thus, the variables in a strict interpretation provide a clear
distinction between "their" (upstream) version in PKG_VERSION and
"our" (local OpenWrt trunk) version in PKG_RELEASE.

For local (OpenWrt-only) packages, this implies that those will only
need PKG_RELEASE defined, while PKG_VERSION does not apply following
a strict interpretation. While the majority of "our" packages actually
follow that scheme, there are also some that mix both variables or
have one of them defined but keep them at "1".

This is misleading and confusing, which can be observed by the fact
that there typically either one of the variables is never bumped or
the choice of the variable to increase depends on the person doing the
change.

Consequently, this patch aims at clarifying the situation by
consistently using only PKG_RELEASE for "our" packages. To achieve
that, PKG_VERSION is removed there, bumping PKG_RELEASE where
necessary to ensure the resulting package version string is bigger
than before.

During adjustment, one has to make sure that the new resulting composite
package version will not be considered "older" than the previous one.

A useful tool for evaluating that is 'opkg compare-versions'. In
principle, there are the following cases:

1. Sole PKG_VERSION replaced by sole PKG_RELEASE:
   In this case, the resulting version string does not change, it's
   just the value of the variable put in the file. Consequently, we
   do not bump the number in these cases so nobody is tempted to
   install the same package again.

2. PKG_VERSION and PKG_RELEASE replaced by sole PKG_RELEASE:
   In this case, the resulting version string has been "version-release",
   e.g. 1-3 or 1.0-3. For this case, the new PKG_RELEASE will just
   need to be higher than the previous PKG_VERSION.
   For the cases where PKG_VERSION has always sticked to "1", and
   PKG_RELEASE has been incremented, we take the most recent value of
   PKG_RELEASE.

Apart from that, a few packages appear to have developed their own
complex versioning scheme, e.g. using x.y.z number for PKG_VERSION
_and_ a PKG_RELEASE (qos-scripts) or using dates for PKG_VERSION
(adb-enablemodem, wwan). I didn't touch these few in this patch.

Cc: Hans Dedecker <dedeckeh@gmail.com>
Cc: Felix Fietkau <nbd@nbd.name>
Cc: Andre Valentin <avalentin@marcant.net>
Cc: Matthias Schiffer <mschiffer@universe-factory.net>
Cc: Jo-Philipp Wich <jo@mein.io>
Cc: Steven Barth <steven@midlink.org>
Cc: Daniel Golle <dgolle@allnet.de>
Cc: John Crispin <john@phrozen.org>

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

15 files changed, 8 insertions, 22 deletions

diff --git a/package/kernel/om-watchdog/Makefile b/package/kernel/om-watchdog/Makefile
index 403069b8166..a7e859dc8b5 100644
--- a/package/kernel/om-watchdog/Makefile
+++ b/package/kernel/om-watchdog/Makefile
@@ -9,7 +9,6 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=om-watchdog
 PKG_RELEASE:=2
-PKG_VERSION:=1
 
 include $(INCLUDE_DIR)/package.mk
 
diff --git a/package/kernel/trelay/Makefile b/package/kernel/trelay/Makefile
index a6bada1a9b7..ad83523cd4d 100644
--- a/package/kernel/trelay/Makefile
+++ b/package/kernel/trelay/Makefile
@@ -9,7 +9,6 @@ include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/kernel.mk
 
 PKG_NAME:=trelay
-PKG_VERSION:=0.1
 PKG_RELEASE:=2
 
 include $(INCLUDE_DIR)/package.mk
diff --git a/package/network/config/gre/Makefile b/package/network/config/gre/Makefile
index ca19f5d47c1..b16dd72cde4 100644
--- a/package/network/config/gre/Makefile
+++ b/package/network/config/gre/Makefile
@@ -8,7 +8,6 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gre
-PKG_VERSION:=1
 PKG_RELEASE:=12
 PKG_LICENSE:=GPL-2.0
 
diff --git a/package/network/config/ipip/Makefile b/package/network/config/ipip/Makefile
index 458709038b6..c262182558c 100644
--- a/package/network/config/ipip/Makefile
+++ b/package/network/config/ipip/Makefile
@@ -8,7 +8,6 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=ipip
-PKG_VERSION:=1
 PKG_RELEASE:=3
 PKG_LICENSE:=GPL-2.0
 
diff --git a/package/network/config/vti/Makefile b/package/network/config/vti/Makefile
index ee7c0d11e88..ffac77ab91d 100644
--- a/package/network/config/vti/Makefile
+++ b/package/network/config/vti/Makefile
@@ -8,7 +8,6 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=vti
-PKG_VERSION:=1
 PKG_RELEASE:=3
 PKG_LICENSE:=GPL-2.0
 
diff --git a/package/network/config/xfrm/Makefile b/package/network/config/xfrm/Makefile
index 1d0766f5688..1b3b99adb00 100644
--- a/package/network/config/xfrm/Makefile
+++ b/package/network/config/xfrm/Makefile
@@ -2,7 +2,6 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=xfrm
-PKG_VERSION:=1
 PKG_RELEASE:=2
 PKG_LICENSE:=GPL-2.0
 
diff --git a/package/network/ipv6/464xlat/Makefile b/package/network/ipv6/464xlat/Makefile
index f4dce2e77d8..c792323235f 100644
--- a/package/network/ipv6/464xlat/Makefile
+++ b/package/network/ipv6/464xlat/Makefile
@@ -1,7 +1,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=464xlat
-PKG_VERSION:=12
+PKG_RELEASE:=12
 
 PKG_SOURCE_DATE:=2018-01-16
 PKG_MAINTAINER:=Hans Dedecker <dedeckeh@gmail.com>
diff --git a/package/network/ipv6/6in4/Makefile b/package/network/ipv6/6in4/Makefile
index 8ff4730e74f..08696ef7a89 100644
--- a/package/network/ipv6/6in4/Makefile
+++ b/package/network/ipv6/6in4/Makefile
@@ -8,8 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=6in4
-PKG_VERSION:=25
-PKG_RELEASE:=1
+PKG_RELEASE:=26
 PKG_LICENSE:=GPL-2.0
 
 include $(INCLUDE_DIR)/package.mk
diff --git a/package/network/ipv6/6rd/Makefile b/package/network/ipv6/6rd/Makefile
index 47f20414fc7..9836ae9361c 100644
--- a/package/network/ipv6/6rd/Makefile
+++ b/package/network/ipv6/6rd/Makefile
@@ -8,8 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=6rd
-PKG_VERSION:=9
-PKG_RELEASE:=4
+PKG_RELEASE:=10
 PKG_LICENSE:=GPL-2.0
 
 include $(INCLUDE_DIR)/package.mk
diff --git a/package/network/ipv6/6to4/Makefile b/package/network/ipv6/6to4/Makefile
index 32d7b325aad..dfb66aaae28 100644
--- a/package/network/ipv6/6to4/Makefile
+++ b/package/network/ipv6/6to4/Makefile
@@ -8,8 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=6to4
-PKG_VERSION:=12
-PKG_RELEASE:=2
+PKG_RELEASE:=13
 PKG_LICENSE:=GPL-2.0
 
 include $(INCLUDE_DIR)/package.mk
diff --git a/package/network/ipv6/ds-lite/Makefile b/package/network/ipv6/ds-lite/Makefile
index 198b6ebcc7c..502da366a92 100644
--- a/package/network/ipv6/ds-lite/Makefile
+++ b/package/network/ipv6/ds-lite/Makefile
@@ -8,8 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=ds-lite
-PKG_VERSION:=7
-PKG_RELEASE:=4
+PKG_RELEASE:=8
 PKG_LICENSE:=GPL-2.0
 
 include $(INCLUDE_DIR)/package.mk
diff --git a/package/network/ipv6/map/Makefile b/package/network/ipv6/map/Makefile
index f05f216a4c8..5d0e0bbd3d8 100644
--- a/package/network/ipv6/map/Makefile
+++ b/package/network/ipv6/map/Makefile
@@ -8,8 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=map
-PKG_VERSION:=4
-PKG_RELEASE:=13
+PKG_RELEASE:=5
 PKG_LICENSE:=GPL-2.0
 
 include $(INCLUDE_DIR)/package.mk
diff --git a/package/network/utils/rssileds/Makefile b/package/network/utils/rssileds/Makefile
index 7a59314693c..892b9f2c517 100644
--- a/package/network/utils/rssileds/Makefile
+++ b/package/network/utils/rssileds/Makefile
@@ -8,8 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=rssileds
-PKG_VERSION:=0.2
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 PKG_LICNESE:=GPL-2.0+
 
 include $(INCLUDE_DIR)/package.mk
diff --git a/package/system/urandom-seed/Makefile b/package/system/urandom-seed/Makefile
index 5a48a07ce10..7cb7c720382 100644
--- a/package/system/urandom-seed/Makefile
+++ b/package/system/urandom-seed/Makefile
@@ -1,7 +1,6 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=urandom-seed
-PKG_VERSION:=1.0
 PKG_RELEASE:=2
 PKG_LICENSE:=GPL-2.0-only
 
diff --git a/package/system/zram-swap/Makefile b/package/system/zram-swap/Makefile
index a6661ce5e98..4422c351ea2 100644
--- a/package/system/zram-swap/Makefile
+++ b/package/system/zram-swap/Makefile
@@ -8,8 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=zram-swap
-PKG_VERSION:=1.1
-PKG_RELEASE:=4
+PKG_RELEASE:=5
 
 PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)