Update the travis_wait verbose implementation to match the upstream

[skip ci]

.travis.yml

@@ -6,16 +6,16 @@ cache:
   directories:
     - build/downloads
 before_script:
-  # Make travis_wait more verbose
-  - . .travis_wait_transparent
+  # Use a more verbose travis_wait implementation
+  - . .travis_wait
   # Delete the outdated `/C=BE/O=GlobalSign nv-sa/OU=Root CA/CN=GlobalSign Root CA` certificate
   - sudo security delete-certificate -Z 2F173F7DE99667AFA57AF80AA2D1B12FAC830338 /System/Library/Keychains/SystemRootCertificates.keychain
   - rvm osx-ssl-certs update $(travis_internal_ruby)
   - mkdir -p build
   - cd build
 script:
   - cmake -G "Xcode" -DCMAKE_OSX_SYSROOT=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk ..
-  - travis_wait_transparent 70 cmake --build . --config RelWithDebInfo
+  - travis_wait 70 cmake --build . --config RelWithDebInfo
 deploy:
   provider: releases
   api-key:

.travis_wait

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+unset -f travis_wait
+
+travis_wait() {
+  local timeout=$1
+
+  if [[ $timeout =~ ^[0-9]+$ ]]; then
+    # looks like an integer, so we assume it's a timeout
+    shift
+  else
+    # default value
+    timeout=20
+  fi
+
+  local cmd="$@"
+
+  $cmd &
+  local cmd_pid=$!
+
+  travis_jigger $! $timeout $cmd &
+  local jigger_pid=$!
+  local result
+
+  {
+    wait $cmd_pid 2>/dev/null
+    result=$?
+    ps -p$jigger_pid &>/dev/null && kill $jigger_pid
+  } || return 1
+
+  if [ $result -eq 0 ]; then
+    echo -e "\n${ANSI_GREEN}The command \"$TRAVIS_CMD\" exited with $result.${ANSI_RESET}"
+  else
+    echo -e "\n${ANSI_RED}The command \"$TRAVIS_CMD\" exited with $result.${ANSI_RESET}"
+  fi
+
+  return $result
+}