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2015-09-27Replace sed -i with perl -ni in testsLoïc Hoguin
This fixes an issue on OSX where the OSX make 3.81 has a bug with multilines single quoted arguments to commands: it strips the backslash and newlines entirely. This makes it impossible to use sed -i properly. Since this is the test suite, we can instead use perl -ni, which can do the same and is available and work fine on all tested platforms.
2015-09-26Make tests work on more systemsLoïc Hoguin
Some systems do not have subsecond file modification detection capabilities. This is the case in OSX because the HFS+ file system has 1 second resolution. This is also the case in other OSes with particular file systems or even shells. For example, the "test" command in Bash does not support subsecond file times, while the ZSH one and the /usr/bin/test on my machine does. On those systems, with Bash, find -newer will work, but not test -nt. Tests were updated to reflect this. The test Makefile runs a series of commands to determine if subsecond resolution is available. When it is not, a sleep command will be executed before relevant operations in the tests. Because the Bash shell is often the default shell for Make, and because users of ZSH may want to avoid sleeping for no reasons, a new variable was introduced: ZSH=1. When provided when running tests, the shell will be switched to ZSH, and subsecond resolution will work as expected. Tests have been fixed to work with ZSH as well. All this only applies to tests, Erlang.mk itself is so far not affected by this issue.
2015-09-25Fix error messages appearing when using parse transformsLoïc Hoguin
The errors were happening in the rebar.config generation code. In addition to the fix, three tests were added: a project that uses a pt from its own code with -compile directives, a project that uses a pt from a dep with the pt set as ERLC_OPTS, and the inclusion of parse transform options in the generated rebar.config when compatibility is desired.
2015-09-17Don't require OTP 18+ to run testsLoïc Hoguin
2015-09-17Use rebar to confirm that generated rebar.config files workLoïc Hoguin
2015-09-17Add initial 'make rebar.config'Loïc Hoguin
This is a preliminary work, good enough to be used in some, but not all, projects. Tests cover the current functionality. Documentation has been written but will be committed at a later stage, as it covers more than just this target (the target is documented as part of a "Compatibility with other build tools" chapter).