Travis-CI MacOS builds (denoted
emerged from beta
in April 2013 using cloud-based Mac hardware.
As this service became popular beyond iOS developers using it for Objective C builds, the amount of free service offered for MacOS builds became increasingly constrained.
In January-March 2018,
additional Travis-CI resources
were progressively brought online, completed in March 2018.
The speed for Travis-CI OSX builds from March 2018 onwards is quite fast, almost as fast to start as Linux.
.travis.yml for MacOSX (including Linux) for a Fortran build that happens to use Lapack and MPI looks like:
language: minimal group: travis_latest git: depth: 25 quiet: true env: FC=gfortran addons: apt: packages: ['gfortran','liblapack-dev','libopenmpi-dev'] matrix: include: - os: linux - os: osx before_install: - brew upgrade gcc > /dev/null - brew install lapack open-mpi > /dev/null install: - cmake -B build - cmake --build build script: - cd build - ctest --output-on-failure
brew update step as sometimes Travis-CI will break on
brew install without first doing
brew update if the Travis-CI MacOS image hasn’t been updated in a while.
Free Travis-CI.org users are concurrency constrained to two MacOS instances and five Linux instances. MacOS builds count against the total concurrency limit of five for free Travis-CI.org users.
The Travis-CI status panel shows that the MacOS backlog since March 2018 is typically near zero like the Linux builds. Before 2018, the OSX build backlog could be in the hundreds or thousands of jobs–this is no longer an issue. The Linux backlog typically stays at or near zero.
Paid Travis-CI.com customers should also experience
short wait times
of a minute or so for