travis/gitlab/azure: Ensure we use python3 always

When running our tests there are some cases where as part of the Python
2.7 to Python 3.6 migration we didn't force Python 3.6 to be used as
everything wasn't yet migrated.  Now that everything is, make sure to
tell virtualenv to use python3.  In the case of Travis this is best done
by making the tools test happen after the main tests so that it will
already have been run in all cases, TEST_PY_TOOLS is a subset of
TEST_PY_BD.

Signed-off-by: Tom Rini <trini@konsulko.com>

.azure-pipelines.yml

@@ -123,7 +123,7 @@ jobs:
           git config --global user.name "Azure Pipelines"
           git config --global user.email bmeng.cn@gmail.com
           export USER=azure
-          virtualenv /tmp/venv
+          virtualenv -p /usr/bin/python3 /tmp/venv
           . /tmp/venv/bin/activate
           pip install pyelftools
           export UBOOT_TRAVIS_BUILD_DIR=/tmp/.bm-work/sandbox_spl

.gitlab-ci.yml

@@ -72,7 +72,7 @@ build all 64bit ARM platforms:
   tags: [ 'all' ]
   stage: world build
   script:
-    - virtualenv /tmp/venv
+    - virtualenv -p /usr/bin/python3 /tmp/venv
     - . /tmp/venv/bin/activate
     - pip install pyelftools
     - ret=0;
@@ -157,7 +157,7 @@ Run binman, buildman, dtoc and patman testsuites:
     - git config --global user.name "GitLab CI Runner";
       git config --global user.email trini@konsulko.com;
       export USER=gitlab;
-      virtualenv /tmp/venv;
+      virtualenv -p /usr/bin/python3 /tmp/venv;
       . /tmp/venv/bin/activate;
       pip install pyelftools;
       export UBOOT_TRAVIS_BUILD_DIR=/tmp/.bm-work/sandbox_spl;

.travis.yml

@@ -133,16 +133,6 @@ script:
    cp ~/grub_x64.efi $UBOOT_TRAVIS_BUILD_DIR/;
    cp ~/grub2-arm/usr/lib/grub2/arm-efi/grub.efi $UBOOT_TRAVIS_BUILD_DIR/grub_arm.efi;
    cp ~/grub2-arm64/usr/lib/grub2/arm64-efi/grub.efi $UBOOT_TRAVIS_BUILD_DIR/grub_arm64.efi;
-   if [[ -n "${TEST_PY_TOOLS}" ]]; then
-     PYTHONPATH="${UBOOT_TRAVIS_BUILD_DIR}/scripts/dtc/pylibfdt"
-     PATH="${UBOOT_TRAVIS_BUILD_DIR}/scripts/dtc:${PATH}"
-     ./tools/binman/binman --toolpath ${UBOOT_TRAVIS_BUILD_DIR}/tools test &&
-     ./tools/patman/patman --test &&
-     ./tools/buildman/buildman -t &&
-     PYTHONPATH="${UBOOT_TRAVIS_BUILD_DIR}/scripts/dtc/pylibfdt"
-     PATH="${UBOOT_TRAVIS_BUILD_DIR}/scripts/dtc:${PATH}"
-     ./tools/dtoc/dtoc -t;
-   fi;
    if [[ "${TEST_PY_BD}" != "" ]]; then
      virtualenv -p /usr/bin/python3 /tmp/venv;
      . /tmp/venv/bin/activate;
@@ -154,6 +144,14 @@ script:
      if [[ $ret -ne 0 ]]; then
        exit $ret;
      fi;
+     if [[ -n "${TEST_PY_TOOLS}" ]]; then
+       export PYTHONPATH="${UBOOT_TRAVIS_BUILD_DIR}/scripts/dtc/pylibfdt";
+       export PATH="${UBOOT_TRAVIS_BUILD_DIR}/scripts/dtc:${PATH}";
+       ./tools/binman/binman --toolpath ${UBOOT_TRAVIS_BUILD_DIR}/tools test &&
+       ./tools/patman/patman --test &&
+       ./tools/buildman/buildman -t &&
+       ./tools/dtoc/dtoc -t;
+     fi;
    fi
 
 matrix: