export function to subshells

.travis.yml

@@ -25,6 +25,7 @@ env:
    - AWS_S3_BUCKET: 'node-mapbox-gl-native'
 
 before_install:
+- source ./scripts/travis_helper.sh
 - source ./scripts/flags.sh
 - ./scripts/travis_before_install.sh
 

scripts/flags.sh

@@ -1,7 +1,5 @@
 #!/usr/bin/env bash
 
-. ./scripts/travis_helper.sh
-
 if [[ ${TRAVIS_OS_NAME} == "linux" ]]; then
     export DISPLAY=:99.0
 

scripts/travis_before_install.sh

@@ -3,8 +3,6 @@
 set -e
 set -o pipefail
 
-. ./scripts/travis_helper.sh
-
 if [[ ${TRAVIS_OS_NAME} == "linux" ]]; then
     #
     # install Linux dependencies

scripts/travis_helper.sh

@@ -8,3 +8,5 @@ function mapbox_time {
     travis_time_finish
     travis_fold end "${NAME}"
 }
+
+export -f mapbox_time

scripts/travis_install.sh

@@ -1,7 +1,5 @@
 #!/usr/bin/env bash
 
-. ./scripts/travis_helper.sh
-
 if [[ ${TRAVIS_OS_NAME} == "linux" ]]; then
     #
     # we'll need the test suite on Linux

scripts/travis_script.sh

@@ -3,8 +3,6 @@
 set -e
 set -o pipefail
 
-. ./scripts/travis_helper.sh
-
 if [[ ${TRAVIS_OS_NAME} == "linux" ]]; then
     #
     # build & test Linux