packaging: move most of contrib/docker to contrib/packaging/docker

contrib/ is kind of a dumping ground for all kinds of random things.

Many of the files in contrib/ are related to packaging. But sorting
out how everything is related is a lot of effort since it is all
mixed together.

This commit starts the process of refactoring everything related
to packaging so it all lives under one roof.

Most content from contrib/docker is simply moved to
contrib/packaging/docker and all references are updated.

Differential Revision: https://phab.mercurial-scm.org/D3541

.hgignore

@@ -31,8 +31,8 b' build'
 contrib/chg/chg
 contrib/hgsh/hgsh
 contrib/vagrant/.vagrant
-contrib/docker/debian-*
-contrib/docker/ubuntu-*
+contrib/packaging/docker/debian-*
+contrib/packaging/docker/ubuntu-*
 dist
 packages
 doc/common.txt

Makefile

@@ -209,40 +209,40 b' deb:'
 ppa:
 	contrib/builddeb --source-only
 
-contrib/docker/debian-%: contrib/docker/debian.template
+contrib/packaging/docker/debian-%: contrib/packaging/docker/debian.template
 	sed "s/__CODENAME__/$*/" $< > $@
 
-docker-debian-jessie: contrib/docker/debian-jessie
+docker-debian-jessie: contrib/packaging/docker/debian-jessie
 	contrib/dockerdeb debian jessie
 
-docker-debian-stretch: contrib/docker/debian-stretch
+docker-debian-stretch: contrib/packaging/docker/debian-stretch
 	contrib/dockerdeb debian stretch
 
-contrib/docker/ubuntu-%: contrib/docker/ubuntu.template
+contrib/packaging/docker/ubuntu-%: contrib/packaging/docker/ubuntu.template
 	sed "s/__CODENAME__/$*/" $< > $@
 
-docker-ubuntu-trusty: contrib/docker/ubuntu-trusty
+docker-ubuntu-trusty: contrib/packaging/docker/ubuntu-trusty
 	contrib/dockerdeb ubuntu trusty
 
-docker-ubuntu-trusty-ppa: contrib/docker/ubuntu-trusty
+docker-ubuntu-trusty-ppa: contrib/packaging/docker/ubuntu-trusty
 	contrib/dockerdeb ubuntu trusty --source-only
 
-docker-ubuntu-xenial: contrib/docker/ubuntu-xenial
+docker-ubuntu-xenial: contrib/packaging/docker/ubuntu-xenial
 	contrib/dockerdeb ubuntu xenial
 
-docker-ubuntu-xenial-ppa: contrib/docker/ubuntu-xenial
+docker-ubuntu-xenial-ppa: contrib/packaging/docker/ubuntu-xenial
 	contrib/dockerdeb ubuntu xenial --source-only
 
-docker-ubuntu-artful: contrib/docker/ubuntu-artful
+docker-ubuntu-artful: contrib/packaging/docker/ubuntu-artful
 	contrib/dockerdeb ubuntu artful
 
-docker-ubuntu-artful-ppa: contrib/docker/ubuntu-artful
+docker-ubuntu-artful-ppa: contrib/packaging/docker/ubuntu-artful
 	contrib/dockerdeb ubuntu artful --source-only
 
-docker-ubuntu-bionic: contrib/docker/ubuntu-bionic
+docker-ubuntu-bionic: contrib/packaging/docker/ubuntu-bionic
 	contrib/dockerdeb ubuntu bionic
 
-docker-ubuntu-bionic-ppa: contrib/docker/ubuntu-bionic
+docker-ubuntu-bionic-ppa: contrib/packaging/docker/ubuntu-bionic
 	contrib/dockerdeb ubuntu bionic --source-only
 
 fedora20:

contrib/dockerlib.sh

@@ -22,7 +22,7 b' function checkdocker() {'
 function initcontainer() {
   [ "$1" ] || { echo "Error: platform name must be specified"; exit 1; }
 
-  DFILE="$ROOTDIR/contrib/docker/$1"
+  DFILE="$ROOTDIR/contrib/packaging/docker/$1"
   [ -f "$DFILE" ] || { echo "Error: docker file $DFILE not found"; exit 1; }
 
   CONTAINER="hg-dockerrpm-$1"