src/ci/shared.sh

   1 #!/bin/false
   2
   3 # This file is intended to be sourced with `. shared.sh` or
   4 # `source shared.sh`, hence the invalid shebang and not being
   5 # marked as an executable file in git.
   6
   7 # See http://unix.stackexchange.com/questions/82598
   8 # Duplicated in docker/dist-various-2/shared.sh
   9 function retry {
  10   echo "Attempting with retry:" "$@"
  11   local n=1
  12   local max=5
  13   while true; do
  14     "$@" && break || {
  15       if [[ $n -lt $max ]]; then
  16         sleep $n  # don't retry immediately
  17         ((n++))
  18         echo "Command failed. Attempt $n/$max:"
  19       else
  20         echo "The command has failed after $n attempts."
  21         return 1
  22       fi
  23     }
  24   done
  25 }
  26
  27 if ! declare -F travis_fold; then
  28   if [ "${TRAVIS-false}" = 'true' ]; then
  29     # This is a trimmed down copy of
  30     # https://github.com/travis-ci/travis-build/blob/master/lib/travis/build/templates/header.sh
  31     travis_fold() {
  32       echo -en "travis_fold:$1:$2\r\033[0K"
  33     }
  34     travis_time_start() {
  35       travis_timer_id=$(printf %08x $(( RANDOM * RANDOM )))
  36       travis_start_time=$(travis_nanoseconds)
  37       echo -en "travis_time:start:$travis_timer_id\r\033[0K"
  38     }
  39     travis_time_finish() {
  40       travis_end_time=$(travis_nanoseconds)
  41       local duration=$(($travis_end_time-$travis_start_time))
  42       local msg="travis_time:end:$travis_timer_id"
  43       echo -en "\n$msg:start=$travis_start_time,finish=$travis_end_time,duration=$duration\r\033[0K"
  44     }
  45     if [ $(uname) = 'Darwin' ]; then
  46       travis_nanoseconds() {
  47         date -u '+%s000000000'
  48       }
  49     else
  50       travis_nanoseconds() {
  51         date -u '+%s%N'
  52       }
  53     fi
  54   else
  55     travis_fold() { return 0; }
  56     travis_time_start() { return 0; }
  57     travis_time_finish() { return 0; }
  58   fi
  59 fi