Merge #16959: ci: Set $HOST before setting fallback values

fadd76a ci: Remove TRAVIS env vars (MarcoFalke)
fa449b8 ci: Set $HOST before setting fallback values (MarcoFalke)

Pull request description:

  This shouldn't change anything, except that `$HOST` is now properly set in the `$BASE_OUTDIR`. (Previously it would always use `x86_64-unknown-linux-gnu` in the directory name and now it should use the correct host)

  The second commit removes travis environment variables in the `ci` system. Also, shouldn't change any behavior.

ACKs for top commit:
  fanquake:
    ACK fadd76a - assuming Travis etc is happy.

Tree-SHA512: aafd65bfc039523208b17d1ed886a3311995d984ec56c3de5f837b5a71d985061ee2da7af947f95a56ab101a0666fe7cd99434e196cd1b7ee9c460d156a185f6

Author: MarcoFalke

ci/test/00_setup_env.sh

@@ -6,11 +6,17 @@
 
 export LC_ALL=C.UTF-8
 
-echo "Setting default values in env"
+echo "Setting specific values in env"
+if [ -n "${FILE_ENV}" ]; then
+  set -o errexit;
+  # shellcheck disable=SC1090
+  source "${FILE_ENV}"
+fi
 
 BASE_ROOT_DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )"/../../ >/dev/null 2>&1 && pwd )
 export BASE_ROOT_DIR
 
+echo "Fallback to default values in env (if not yet set)"
 # The number of parallel jobs to pass down to make and test_runner.py
 export MAKEJOBS=${MAKEJOBS:--j4}
 # A folder for the ci system to put temporary files (ccache, datadirs for tests, ...)
@@ -20,12 +26,16 @@ export RUN_UNIT_TESTS=${RUN_UNIT_TESTS:-true}
 export RUN_FUNCTIONAL_TESTS=${RUN_FUNCTIONAL_TESTS:-true}
 export RUN_FUZZ_TESTS=${RUN_FUZZ_TESTS:-false}
 export DOCKER_NAME_TAG=${DOCKER_NAME_TAG:-ubuntu:18.04}
-export BOOST_TEST_RANDOM=${BOOST_TEST_RANDOM:-1$TRAVIS_BUILD_ID}
+# Randomize test order.
+# See https://www.boost.org/doc/libs/1_71_0/libs/test/doc/html/boost_test/utf_reference/rt_param_reference/random.html
+export BOOST_TEST_RANDOM=${BOOST_TEST_RANDOM:-1}
 export CCACHE_SIZE=${CCACHE_SIZE:-100M}
 export CCACHE_TEMPDIR=${CCACHE_TEMPDIR:-/tmp/.ccache-temp}
 export CCACHE_COMPRESS=${CCACHE_COMPRESS:-1}
 export CCACHE_DIR=${CCACHE_DIR:-$BASE_SCRATCH_DIR/.ccache}
-export BASE_BUILD_DIR=${BASE_BUILD_DIR:-${TRAVIS_BUILD_DIR:-$BASE_ROOT_DIR}}
+# Folder where the build is done (depends and dist). Can not be changed and is equal to the root of the git repo
+export BASE_BUILD_DIR=${BASE_BUILD_DIR:-$BASE_ROOT_DIR}
+# Folder where the build is done (bin and lib). Can not be changed.
 export BASE_OUTDIR=${BASE_OUTDIR:-$BASE_BUILD_DIR/out/$HOST}
 export SDK_URL=${SDK_URL:-https://bitcoincore.org/depends-sources/sdks}
 export WINEDEBUG=${WINEDEBUG:-fixme-all}
@@ -34,10 +44,3 @@ export GOAL=${GOAL:-install}
 export DIR_QA_ASSETS=${DIR_QA_ASSETS:-${BASE_BUILD_DIR}/qa-assets}
 export PATH=${BASE_ROOT_DIR}/ci/retry:$PATH
 export CI_RETRY_EXE=${CI_RETRY_EXE:retry}
-
-echo "Setting specific values in env"
-if [ -n "${FILE_ENV}" ]; then
-  set -o errexit;
-  # shellcheck disable=SC1090
-  source "${FILE_ENV}"
-fi