Update CI with Nim 1.2.0

Fix script if somehow Nim was built but not Nimble (Travis ARM for channel Stable)

Add debug tooling for Nim stable on Azure Linux 64-bit: https://dev.azure.com/numforge/Constantine/_build/results?buildId=421&view=logs&j=772f230d-746a-56d1-bc2f-fb811c7e19c9&t=b523bb2e-7fa8-50fa-b6c6-60216421c47f

.travis.yml

@@ -8,11 +8,32 @@ cache:
 
 matrix:
   include:
-    # Constantine only works with Nim devel
     # Build and test using both gcc and clang
     # Build and test on both x86-64 and ARM64
     # Ubuntu Bionic (18.04) is needed, it includes
     # GCC 7 codegen fixes to addcarry_u64.
+
+    - dist: bionic
+      arch: amd64
+      env:
+        - ARCH=amd64
+        - CHANNEL=stable
+      compiler: gcc
+
+    - dist: bionic
+      arch: arm64
+      env:
+        - ARCH=arm64
+        - CHANNEL=stable
+      compiler: gcc
+
+    - dist: bionic
+      arch: amd64
+      env:
+        - ARCH=amd64
+        - CHANNEL=stable
+      compiler: clang
+
     - dist: bionic
       arch: amd64
       env:
@@ -35,6 +56,12 @@ matrix:
       compiler: clang
 
     # On OSX we only test against clang (gcc is mapped to clang by default)
+    - os: osx
+      arch: amd64
+      env:
+        - ARCH=amd64
+        - CHANNEL=stable
+      compiler: clang
     - os: osx
       arch: amd64
       env:
@@ -72,7 +99,7 @@ before_install:
 install:
   # Detect caching of Nim compiler
   - |
-    if [ ! -x "nim-${CHANNEL}/bin/nim" ]; then
+    if [ ! -x "nim-${CHANNEL}/bin/nim" ] || [ ! -x "nim-${CHANNEL}/bin/nimble" ]; then
       git clone -b "${BRANCH}" https://github.com/nim-lang/nim "nim-${CHANNEL}/"
       pushd "nim-${CHANNEL}"
       git clone --depth 1 https://github.com/nim-lang/csources csources/

azure-pipelines.yml

@@ -2,7 +2,18 @@ strategy:
   maxParallel: 10
   matrix:
     # TODO: Linux 32-bit requires gcc -m32 setup
-
+    # MacOS host are much faster
+    # Then Linux host, then Windows host
+    Windows_stable_64bit:
+      VM: 'windows-latest'
+      UCPU: amd64
+      CHANNEL: stable
+      TEST_LANG: c
+    Windows_stable_32bit:
+      VM: 'windows-latest'
+      UCPU: i686
+      CHANNEL: stable
+      TEST_LANG: c
     Windows_devel_32bit:
       VM: 'windows-latest'
       UCPU: i686
@@ -13,33 +24,42 @@ strategy:
       UCPU: amd64
       CHANNEL: devel
       TEST_LANG: c
-    Windows_cpp_devel_64bit:
-      VM: 'windows-latest'
+    Linux_stable_64bit:
+      VM: 'ubuntu-16.04'
       UCPU: amd64
-      CHANNEL: devel
-      TEST_LANG: cpp
+      CHANNEL: stable
+      TEST_LANG: c
     Linux_devel_64bit:
       VM: 'ubuntu-18.04'
       UCPU: amd64
       CHANNEL: devel
       TEST_LANG: c
-    Linux_cpp_devel_64bit:
-      VM: 'ubuntu-18.04'
-      UCPU: amd64
-      CHANNEL: devel
-      WEAVE_TEST_LANG: cpp
-
     # Linux_devel_32bit:
     #   VM: 'ubuntu-16.04'
     #   UCPU: i686
     #   CHANNEL: devel
     #   TEST_LANG: c
 
+    MacOS_stable_64bit:
+      VM: 'macOS-10.14'
+      UCPU: amd64
+      CHANNEL: stable
+      TEST_LANG: c
+    MacOS_cpp_stable_64bit:
+      VM: 'macOS-10.14'
+      UCPU: amd64
+      CHANNEL: stable
+      TEST_LANG: cpp
     MacOS_devel_64bit:
       VM: 'macOS-10.14'
       UCPU: amd64
       CHANNEL: devel
       TEST_LANG: c
+    MacOS_cpp_devel_64bit:
+      VM: 'macOS-10.14'
+      UCPU: amd64
+      CHANNEL: devel
+      TEST_LANG: cpp
 pool:
   vmImage: $(VM)
 
@@ -129,7 +149,7 @@ steps:
       fi
       mkdir -p NimBinaries
       pushd NimBinaries
-      if [ ! -x "nim-${CHANNEL}/bin/nim" ]; then
+      if [ ! -x "nim-${CHANNEL}/bin/nim" ] || [ ! -x "nim-${CHANNEL}/bin/nimble" ]; then
         git clone -b "${BRANCH}" https://github.com/nim-lang/nim "nim-${CHANNEL}/"
         pushd "nim-${CHANNEL}"
         git clone --depth 1 https://github.com/nim-lang/csources csources/