Travis: add testing of JSON output against schema

travis/before_install.sh

@@ -6,3 +6,4 @@
 # Configure Python pip
 pip install --user --upgrade pip
 pip config --user set global.progress_bar off
+pip3 install --user jsonschema

travis/csa/before_install.sh

@@ -1,10 +1,11 @@
 #!/bin/bash
 
 set -e
+sudo apt-get update -qq
+sudo apt-get install -qq python3-pip
 
 ./travis/before_install.sh
 
-sudo apt-get update -qq
 sudo apt-get install -qq sqlite3 libsqlite3-dev
 
 wget http://releases.llvm.org/6.0.0/clang+llvm-6.0.0-x86_64-linux-gnu-ubuntu-14.04.tar.xz

travis/install.sh

@@ -51,6 +51,10 @@ fi
 make check
 make install
 find /tmp/proj_autoconf_install_from_dist_all
+
+/tmp/proj_autoconf_install_from_dist_all/bin/projinfo EPSG:32631 -o JSON -q > out.json
+jsonschema -i out.json /tmp/proj_autoconf_install_from_dist_all/share/proj/crsjson.schema.json
+
 cd ..
 
 # cmake build from generated tarball

travis/linux_clang/before_install.sh

@@ -1,8 +1,9 @@
 #!/bin/bash
 
 set -e
+sudo apt-get update -qq
+sudo apt-get install -qq python3-pip
 
 ./travis/before_install.sh
 
-sudo apt-get update -qq
 sudo apt-get install -qq sqlite3 libsqlite3-dev

travis/linux_gcc/before_install.sh

@@ -1,10 +1,11 @@
 #!/bin/bash
 
 set -e
+sudo apt-get update -qq
+sudo apt-get install -qq python3-pip
 
 ./travis/before_install.sh
 
-sudo apt-get update -qq
 sudo apt-get install -y cppcheck
 sudo apt-get install -qq lcov
 sudo apt-get install -qq doxygen graphviz

travis/linux_gcc7/before_install.sh

@@ -1,6 +1,8 @@
 #!/bin/bash
 
 set -e
+sudo apt-get update -qq
+sudo apt-get install -qq python3-pip
 
 ./travis/before_install.sh
 

travis/mingw32/before_install.sh

@@ -1,15 +1,16 @@
 #!/bin/bash
 
 set -e
+sudo apt-get update -qq
+sudo apt-get install -qq python3-pip
 
 ./travis/before_install.sh
 
-sudo apt-get update -qq
 sudo apt-get install wget
 sudo apt-get install binutils-mingw-w64-x86-64
 sudo apt-get install gcc-mingw-w64-x86-64
 sudo apt-get install g++-mingw-w64-x86-64
 sudo apt-get install g++-mingw-w64
 sudo apt-get install mingw-w64-tools
 sudo apt-get install -y wine1.4-amd64
-sudo apt-get install sqlite3
+sudo apt-get install sqlite3