macOS travis builds recently started failing (travis caches were cleared
recently, maybe related). python2 is reasonably covered by linux CI. Not
going to waste time on it for macOS CI.
==> Installing python@2
==> Downloading https://homebrew.bintray.com/bottles/python@2-2.7.14_3.el_capita
==> Pouring python@2-2.7.14_3.el_capitan.bottle.tar.gz
Error: The `brew link` step did not complete successfully
The formula built, but is not symlinked into /usr/local
Could not symlink bin/2to3-2
Target /usr/local/bin/2to3-2
is a symlink belonging to python. You can unlink it:
brew unlink python
To force the link and overwrite all conflicting files:
brew link --overwrite python@2
To list all files that would be deleted:
brew link --overwrite --dry-run python@2
Possible conflicting files are:
/usr/local/bin/2to3-2 -> /usr/local/Cellar/python/2.7.12_1/bin/2to3-2
/usr/local/bin/2to3-2.7 -> /usr/local/Cellar/python/2.7.12_1/bin/2to3-2.7
/usr/local/bin/idle -> /usr/local/Cellar/python/2.7.12_1/bin/idle
...
Homebrew changed a few formulae to meet their standards. "python3" was renamed
to "python", and "python2" to "python@2".
As for why, read this announcement: https://brew.sh/2018/01/19/homebrew-1.5.0
Since we install Python 3 via homebrew anyway, we now do the same for Python 2
as well. We do that because the system Python 2 of macOS comes without pip
installed and this way seems cleaner than doing "sudo easy_install pip".
The Python 2 formula is keg-only now, so it doesn't interfere with the system
Python 2. Therefore we have to add its executables to $PATH ourselves.
ci: install nodejs 8 in Appveyor, Travis
provider: check node version for debug support
Resolve https://github.com/neovim/neovim/pull/7577#issuecomment-350590592 for Unix.
provider: test if nodejs in ci supports --inspect-brk
nodejs host for neovim requires nodejs 6+ to work properly.
nodejs 6.12+ or 7.6+ is required for debug support via `node --inspect-brk`.
provider: run cli.js of nodejs host directly
npm shims are useless because the user cannot set node to debug mode via
--inspect-brk. This is problematic on Windows which use batchfiles and
shell scripts to compensate for not supporting shebang.
The patch uses `npm root -g` to get the absolute path of the global npm
modules. If that fails, then the user did not install neovim npm package
globally. Use that absolute path to find `neovim/bin/cli.js`, which is
what the npm shim actually runs with node. glob() is for a simple file
check in case bin/ is removed because the npm shims are ignored now.
Workaround for travis issue:
https://github.com/travis-ci/travis-ci/issues/8363
Sometimes `pip3` works, sometimes not:
pyenv: pip3: command not found
The `pip3' command exists in these Python versions:
3.5
3.5.3
Tried these steps to fix the issue:
- add `python: 3.6` to top level of `.travis.yml`
- add `python3` to `addons.apt.packages` level of `.travis.yml`
- `pyenv global system 3.{4,5,6}`
- `pyenv global 3.6`
In all cases the presence or absence of `pip3` was random.
