Problem:
Since 6d57bb89c1#18543, luacheck is not found on some systems when
running the "lintlua" target.
Solution:
- Move the find_program() to the top-level CMakeLists.txt
- Define a def_cmd_target() function with fewer assumptions than the old
lint() function.
- Move "lintuncrustify" to src/nvim/CMakeLists.txt so it can reuse the
$LINT_NVIM_SOURCES already defined there.
- Make the lint targets _fatal_ by default. There is little reason for
the "lint" umbrella target defined in Makefile to exist if it's going
to ignore the absence of the actual linters.
- For now, keep the uncrustify call in a separate cmake script so that
it can be silenced (too noisy).
* build: move the logic for linters to cmake
Cmake is our source of truth. We should have as much of our build
process there as possible so everyone can make use of it.
* build: remove redundant check for ninja generator
The minimum cmake version as of writing this is 3.10, which has ninja
support.
Problem:
Since 22b52dd462#11501, log_path_init is called in log_init, so it is
now called at a deterministic time. So the "just in time" complexity of
log_path_init is no longer needed.
Solution:
Remove logic intended to try to "heal" partial initialization.
Problem:
winpty is only needed for Windows 8.1. Removing it reduces our build and code
complexity.
Solution:
- Remove winpty.
- Require Windows 10.
closes#18252
Problem:
Some tests were not passing on my machine, specifically in
`test/functional/api/vim_spec.lua` the two tests under
`describe('nvim_get_runtime_file...`
Solution:
Unset `XDG_DATA_DIRS` in the test runner.
Note: Window CI failed if we set it to the same value as `XDG_DATA_HOME`.
Set a maximum test run-time of 20 minutes to:
- fail faster
- avoid wasting CI resources
- set a bound on the test time (if tests take longer than 20 minutes we
need to invest in parallelizing them...)
Timeout looks like:
-- Tests exited non-zero: Process terminated due to timeout
-- No output to stderr.
CMake Error at /…/neovim/cmake/RunTests.cmake:86
(message):
functional tests failed with error: Process terminated due to timeout
When libluv is built statically it appends an '_a' suffix to the library
name. This affects CMake's ability to find the bundled version of libluv
(which is built statically) when there is a dynamic version of the
library also built on the system, which does not have the '_a' suffix.
Prioritize searching for 'libluv_a' first before falling back to
'libluv'. This will ensure the bundled version of libluv is always found
first before any system versions of libluv. In cases where we are not
using bundled libraries, CMake will still safely fall through to finding
'libluv' since package managers do not typically provide static system
libraries.
`find_package(Foo ...)` expects to find a file FindFoo.cmake and the
resulting variables to be named `Foo_...`. If those don't all match up,
then the detection does not work properly.
Closes#13262
Problem: On Windows with the MSVC build, gettext-translation
"Questa è già la" displays as "Questa <e8> gi<e0> la".
Solution: Fix iconv detection iconv when building gettext.
So HAVE_ICONV is correctly defined when building nvim.
* fix gettext mb chars on MSVC
* fix libintl detection failure on MSVC
fixes#11749
This avoids invoking CMake after a new commit, which might take 15s on
some systems.
Skipped on CMake < 3.2.0 (missing BYPRODUCTS support).
Co-Authored-By: Justin M. Keyes <justinkz@gmail.com>
We are using "LIBFOO" prefixes for `LIBFOO_INCLUDE_DIRS` etc, and
therefore need to use this for the PREFIX with LibFindMacros also, so
that `"${${PREFIX}_FIND_VERSION}"` gets handled there properly.
The alternative would be to either manually handle/set the upper/mixed case
variants of those variable additionally, which is not as easy.
Keeping the existing names is useful for packagers.
Before this the version requirements with
`find_package(Unibilium 2.0 REQUIRED)` was not handled (a49cf5126), and
it prepares for using a required version with libvterm
(initially/wrongly ported in 1896c72a5).
* build: require unibilium>=2.0
This also ports FindUnibilium to LibFindMacros, which was planned
anyway, and makes the version check easier.
With an older Unibilium our fallback code in `terminfo_from_builtin`
will not work (because it assumes the new data structures from 2.0.0 [1]),
and nvim would crash later because of `ut` being NUL.
1: 42f3cdd284
* tests: move "busted" dir to "test"
It is used for outputHandlers only, and clearly belongs to the tests.
Use the full module name with the `-o` option to `busted` then for
clarity.
* luacheck
* test/busted/outputHandlers/TAP.lua: use/extend upstream
* build: FindLibIntl: fix warning about CMP0075
The common pattern elsewhere to set this only during the check, and here
it was not unset, resulting in a warning later (on Alpine 3.10):
-- Found Iconv
-- Looking for pthread.h
CMake Warning (dev) at /usr/share/cmake/Modules/CheckIncludeFile.cmake:80 (message):
Policy CMP0075 is not set: Include file check macros honor
CMAKE_REQUIRED_LIBRARIES. Run "cmake --help-policy CMP0075" for policy
details. Use the cmake_policy command to set the policy and suppress this
warning.
CMAKE_REQUIRED_LIBRARIES is set to:
/usr/lib/libintl.so
For compatibility with CMake 3.11 and below this check is ignoring it.
Call Stack (most recent call first):
/usr/share/cmake/Modules/FindThreads.cmake:105 (CHECK_INCLUDE_FILE)
CMakeLists.txt:482 (find_package)
This warning is for project developers. Use -Wno-dev to suppress it.
-- Looking for pthread.h - found
* build: remove lists / REMOVE_ITEM around check_c_source_compiles
- Move .luacheckrc to root, add read_globals=vim
- Simplify lualint target, run it on all lua files
- Lint preload.lua, but ignore W211
- Remove testlint target, included in lualint (and lint)
- Clean up .luacheckrc
Keeps using add_definitions for compatibility with older CMake.
Newer CMake (3.12) would have `add_compile_definitions`, but it is not
required, since `add_defitions` was meant to be used for
compile/preprocessor definitions initially anyway.
Ref: https://github.com/neovim/neovim/pull/4389
The variables are not meant to be defined there really, but only with
the third-party project.
Using them, e.g. with the following, would actually result in libvterm
not being found then:
make CMAKE_EXTRA_FLAGS="-DUSE_BUNDLED_LIBVTERM=ON" \
DEPS_CMAKE_FLAGS="-DUSE_BUNDLED=OFF -DUSE_BUNDLED_LIBVTERM=ON"
In https://github.com/neovim/neovim/pull/6357 they were renamed to
`USE_BUNDLED_X` from `X_USE_BUNDLED`, but the above reasoning applies
to the old names, too.
Internally `CMAKE_PREFIX_PATH` is used to add the built/bundled third
party packages for `find_package`, so there is no reason to e.g. query
the values via `load_cache` for example from the third-party project.
Just set it from `${CMAKE_HOST_SYSTEM_NAME}` directly, instead of passing it
from the main CMake file (CMAKE_SYSTEM_NAME defaults to it, but is empty
in script mode).
Initially added in 9ce81f7b2, but then even used with unrelated commands
(that do not use RunTests.cmake, e.g. 221f6fffa).
The feature is very rudimentary [1], and causes problems when not using
bundled deps, where it might then fail to find `busted.runner` due to
this.
E.g. with "-DUSE_BUNDLED=OFF -DUSE_BUNDLED_LUAROCKS=ON":
`.deps/usr/bin/busted` contains `exec '/usr/bin/luajit' -e …`, i.e. it
run luajit with adjusted lpath etc.
But using `--lua /usr/bin/luajit` then causes this `busted` wrapper to
be replaced with just `/usr/bin/luajit`, i.e. it is missing the adjusted
lpath then.
1: 9eb6c9cf93
- allow for passing in BUSTED_ARGS via env
- quote values of TEST_TAG/TEST_FILTER
Previously TEST_FILTER="'foo bar'" was required.
This allows for:
make functionaltest TEST_FILE=test/functional/terminal/tui_spec.lua \
BUSTED_ARGS="--no-keep-going --shuffle" \
TEST_FILTER="TUI background color handles"
* RunTests.cmake: BUILD_DIR for Xtest files, isolated TMPDIR
Assume relative path for given TEST_PATH.
The package argument is case sensitive, which is important to handle
X_FIND_REQUIRED properly, i.e. error out early if it is not found:
CMake Error at /usr/share/cmake-3.14/Modules/FindPackageHandleStandardArgs.cmake:137 (message):
Could NOT find Unibilium (missing: UNIBILIUM_LIBRARY UNIBILIUM_INCLUDE_DIR)
Otherwise it would continue until:
CMake Error: The following variables are used in this project, but they
are set to NOTFOUND.
Please set them or make sure they are set and tested correctly in the
CMake files:
UNIBILIUM_INCLUDE_DIR (ADVANCED)
Quickly checked via `rg 'find_package_handle_standard|find_package.*REQUIRED' -I | sort`.
Ref: https://gitlab.kitware.com/cmake/cmake/issues/19413
There was never any investigation done to determine whether using
jemalloc was actually a net benefit for nvim. It has been a portability
limitation and adds another factor to consider when triaging issues.
This file wasn't used since e1cc0fe996. That may have been
accidental, but it's not needed anymore anyway. Also the "Workaround
for hanging" is no longer relevant.
ref #9280
Introduce the `vim.compat` module, to help environments with system Lua
5.2+ run the build/tests. Include the module implicitly in all tests.
ref #8677
legacy `vim` module:
beep
buffer
command
dict
eval
firstline
lastline
line
list
open
type
window
If check_c_source_compiles() succeeded (HAVE_WORKING_LIBINTL is set)
then the result of find_xxx() doesn't matter. This happens on systems
(linux+glibc) where libintl is available passively.
This allows `find_package(LibIntl REQUIRED)` to work and will still
correctly fail (REQUIRED) on systems lacking libintl.
This helps to figure out what the problem is, e.g. in my case I have
lua51-mpack installed to be used with luajit, but it is broken (missing
libmpack).
With this patch you get:
-- Checking Lua interpreter /usr/bin/luajit
/usr/bin/luajit: error loading module 'mpack' from file '/usr/lib/lua/5.1/mpack.so':
libmpack.so.0: cannot open shared object file: No such file or directory
stack traceback:
[C]: at 0x55fcf0166fb0
[C]: in function 'require'
(command line):1: in main chunk
[C]: at 0x55fcf01188a0
-- [/usr/bin/luajit] The 'mpack' lua package is required for building Neovim
-- Checking Lua interpreter /usr/bin/lua5.1
/usr/bin/lua5.1: error loading module 'mpack' from file '/usr/lib/lua/5.1/mpack.so':
libmpack.so.0: cannot open shared object file: No such file or directory
stack traceback:
[C]: ?
[C]: in function 'require'
(command line):1: in main chunk
[C]: ?
-- [/usr/bin/lua5.1] The 'mpack' lua package is required for building Neovim
-- Checking Lua interpreter /usr/bin/lua5.2
/usr/bin/lua5.2: (command line):1: module 'mpack' not found:
no field package.preload['mpack']
no file '/usr/share/lua/5.2/mpack.lua'
no file '/usr/share/lua/5.2/mpack/init.lua'
no file '/usr/lib/lua/5.2/mpack.lua'
no file '/usr/lib/lua/5.2/mpack/init.lua'
no file './mpack.lua'
no file '/usr/lib/lua/5.2/mpack.so'
no file '/usr/lib/lua/5.2/loadall.so'
no file './mpack.so'
stack traceback:
[C]: in function 'require'
(command line):1: in main chunk
[C]: in ?
-- [/usr/bin/lua5.2] The 'mpack' lua package is required for building Neovim
-- Checking Lua interpreter /usr/bin/lua
/usr/bin/lua: (command line):1: module 'mpack' not found:
no field package.preload['mpack']
no file '/usr/share/lua/5.3/mpack.lua'
no file '/usr/share/lua/5.3/mpack/init.lua'
no file '/usr/lib/lua/5.3/mpack.lua'
no file '/usr/lib/lua/5.3/mpack/init.lua'
no file './mpack.lua'
no file './mpack/init.lua'
no file '/usr/lib/lua/5.3/mpack.so'
no file '/usr/lib/lua/5.3/loadall.so'
no file './mpack.so'
stack traceback:
[C]: in function 'require'
(command line):1: in main chunk
[C]: in ?
-- [/usr/bin/lua] The 'mpack' lua package is required for building Neovim
CMake Error at CMakeLists.txt:459 (message):
A suitable Lua interpreter was not found.
While this makes it more verbose for the expected error case ("module
'mpack' not found"), the behavior before this patch hides too much.
This is the old output:
-- Checking Lua interpreter /usr/bin/luajit
-- [/usr/bin/luajit] The 'mpack' lua package is required for building Neovim
-- Checking Lua interpreter /usr/bin/lua5.1
-- [/usr/bin/lua5.1] The 'mpack' lua package is required for building Neovim
-- Checking Lua interpreter /usr/bin/lua5.2
-- [/usr/bin/lua5.2] The 'mpack' lua package is required for building Neovim
-- Checking Lua interpreter /usr/bin/lua
-- [/usr/bin/lua] The 'mpack' lua package is required for building Neovim
CMake Error at CMakeLists.txt:459 (message):
A suitable Lua interpreter was not found.
This is for when the whole configuration runs (i.e. after `make
distclean`), afterwards only one Lua interpreter gets checked only.
closes#7239
The old behaviour was to set CMAKE_INSTALL_MANDIR to /usr/local/man
when MANPREFIX wasn't defined. This caused mismatching installation
paths when the installation prefix wasn't /usr/local.
This fix explicitely checks that the prefix is /usr/local to change
the value of CMAKE_INSTALL_MANDIR, and uses the default behaviour
otherwise, as /usr/local is the exception rather than the norm
(as per man hier(7)).
Handling of process exit is still broken. It detects the moment when the
child process exits, then quickly stops polling for process output. It
should continue polling for output until the agent has scraped all of the
process' output. This problem is easy to notice by running a command like
"dir && exit", but even typing "exit<ENTER>" can manifest the problem --
the "t" might not appear.
winpty's Cygwin adapter handles shutdown by waiting for the agent to close
the CONOUT pipe, which it does after it has scraped the child's last
output. AFAIK, neovim doesn't do anything interesting when winpty closes
the CONOUT pipe.
Tests that check localized error messages need a stable locale, else
errors like this occur:
[ FAILED ] 2 tests, listed below:
[ FAILED ] ...npack/file/vim/neovim/test/functional/eval/null_spec.lua @ 29: NULL list is accepted as an empty list by writefile()
...npack/file/vim/neovim/test/functional/eval/null_spec.lua:30: Expected objects to be the same.
Passed in:
(string) '
E484: Cannot open file Xtest-functional-viml-null'
Expected:
(string) '
E484: Can't open file Xtest-functional-viml-null'
stack traceback:
...npack/file/vim/neovim/test/functional/eval/null_spec.lua:30: in function <...npack/file/vim/neovim/test/functional/eval/null_spec.lua:29>
[ FAILED ] ...k/file/vim/neovim/test/functional/ex_cmds/write_spec.lua @ 81: :write errors out correctly
...k/file/vim/neovim/test/functional/ex_cmds/write_spec.lua:97: Expected objects to be the same.
Passed in:
(string) 'Vim(write):E510: Cannot make backup file (add ! to override)'
Expected:
(string) 'Vim(write):E510: Can't make backup file (add ! to override)'
stack traceback:
...k/file/vim/neovim/test/functional/ex_cmds/write_spec.lua:97: in function <...k/file/vim/neovim/test/functional/ex_cmds/write_spec.lua:81>
10 SKIPPED TESTS
2 FAILED TESTS
-- Output to stderr:
2017/07/29 00:41:32 ERROR 31133/open_log_file:170: Logging to stderr, failed to open $NVIM_LOG_FILE: Xtest-startup-xdg-logpath/nvim/log
2017/07/29 00:41:32 WARN 31133/call_set_error:815: RPC: ch 1 was closed by the client
CMake Error at /home/shlomif/Download/unpack/file/vim/neovim/cmake/RunTests.cmake:50 (message):
Running functional tests failed with error: 1.
FAILED: CMakeFiles/functionaltest
cd /home/shlomif/Download/unpack/file/vim/neovim/build && /usr/bin/cmake -DBUSTED_PRG=/home/shlomif/Download/unpack/file/vim/neovim/.deps/usr/bin/busted -DLUA_PRG=/home/shlomif/Download/unpack/file/vim/neovim/.deps/usr/bin/luajit -DNVIM_PRG=/home/shlomif/Download/unpack/file/vim/neovim/build/bin/nvim -DWORKING_DIR=/home/shlomif/Download/unpack/file/vim/neovim -DBUSTED_OUTPUT_TYPE=nvim -DTEST_DIR=/home/shlomif/Download/unpack/file/vim/neovim/test -DBUILD_DIR=/home/shlomif/Download/unpack/file/vim/neovim/build -DTEST_TYPE=functional -DSYSTEM_NAME=Linux -P /home/shlomif/Download/unpack/file/vim/neovim/cmake/RunTests.cmake
ninja: build stopped: subcommand failed.
Makefile:102: recipe for target 'functionaltest' failed
make: *** [functionaltest] Error 1
- Do not delete it: may need to inspect it after tests finished.
- Avoids writing to stderr in cases where the test-local $XDG_DATA_HOME
was not created yet.
This also removes LINT_FILE environment variable, other then that functionality
is kept. It is expected that developers needing partial linting will use `make
lint`, touching interesting file before (if not done already by writing to
them).
Allows linting only modified files and linting multiple files in
parallel. In the current state is rather slow because errors.json is
a 6 MiB file and needs to be reparsed each time.
Results on my system (6-core):
# In build dir, actually parallel
make -j5 clint 241.24s user 8.39s system 334% cpu 1:14.74 total
# In root, one process
make -j5 clint 60.69s user 0.37s system 93% cpu 1:05.19 total
In both cases download time included.
That is not well for travis (though I would keep travis as-is because
new variant will fail before checking all files), but already good
enough for regular development: total times are nearly identical and
this is the *full* build, further `make -C build clint` will check only
modified files.
- Add support for TEST_FILE to the `oldtest` target, for consistency
with the busted/lua tests.
Caveat: with the busted/lua tests TEST_FILE takes a full path, whereas
for `oldtest` it must be "test_foo.res".
- Add support for NVIM_PRG, again so that all test-related targets are
consistent.
- Use consistent name for NVIM_PRG. But still need to support NVIM_PROG
for QuickBuild CI.
Note: The `oldtest` target is driven by the top-level Makefile, because
it requires a TTY. CMake 3.2 added a USES_TERMINAL flag to
add_custom_target(). But we support CMake 2.8...
add_custom_target(oldtest
COMMAND make clean
COMMAND make NVIM_PRG=$<TARGET_FILE:nvim> $ENV{MAKEOVERRIDES}
DEPENDS nvim
WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/src/nvim/testdir"
USES_TERMINAL true
)
This was a workaround from long ago, but it doesn't seem to be needed
anymore. And it breaks the $PATH on the Windows build (AppVeyor CI).
After this change python3 (and 2) is correctly detected on AppVeyor CI.
References #5946
In Windows Lua's os.tmpname() returns relative paths starting with \s,
prepend them with $TEMP to generate a valid path.
In OS X os.tmpname() returns paths in '/tmp' but they should be in
'/private/tmp'. We cannot use os_name() for platform detection because
some tests use tempname() before nvim is spawned, instead use one of the
following:
1. Set SYSTEM_NAME environment variable before calling the tests, it
is set from CMAKE_SYSTEM_NAME(i.e. uname -s or 'Windows')
2. Call uname -s
3. Assume windows
Using /MT was causing issues when building luarocks, revert it, use the
dynammic runtime and generate release DLLs for the dependencies.
Some refactoring was required because for linking cmake looks for the
import libraries (.lib) but on runtime executables we need the .dll files
to be in the same folder.
The DLLs are placed in the bin/ folder in order for nvim.exe to run
during the build and tests. The install target installs the DLLs with
the nvim binary - uses GetPrerequisites to find runtime DLLs.
Some minor issues that required adjustments:
- [MSVC] FindMsgpack.cmake now looks for msgpack_import.lib instead of
msgpack.lib
- The lua-client fails to find libuv.lib, instead it looks for uv.lib,
added second copy of the file to the install command.
- [MSVC] CMAKE_BUILD_TYPE affects the output paths, default to Release.
Part of these changes are credited to @jasonwilliams200OK who fixed the
third-party recipes to consistently use the same build type.
Otherwise, busted may run a different interpreter than the one we
detected, without the capabilities we expect. (For instance, we might
have detected the luajit interpreter, but busted might run the lua
interpreter, without the ffi module.)
By default Neovim searched a Luajit instalation and linked against
the luajit library.
In practice Neovim only requires luajit to run the unit tests. All other
targets only require lua and the correct lua modules. This commit:
1. Remove the strict dependency on Luajit
2. Makes the unittest target depend on the lua 'ffi' module.
If the module is not available the target is not enabled
and a message is displayed.
By default, find_library() searches all directories for one possible
name and then looks for the next name. To make sure we're building
against the same headers and libraries, look for all names in a
directory before moving to the next one.
In 33bc332, version constraints were added to pkg_search_module(), but
that only affects the set of directories searched by
find_library()/find_path().
Once the header directory is found, parse the version from
version_master.h so it can be checked by the find_package() call in the
root CMakeLists.txt.
libmsgpack was the old C++ library provided by msgpack-c. The C library
is libmsgpackc.
The C++ support became header-only, but there was a bug
(msgpack/msgpack-c#395) wherein using msgpack-c's CMake build system
would only install libmsgpack instead of libmsgpackc.
Searching for both libraries, but preferring libmsgpackc, allows for
building against older msgpack-c releases and prepares for the upcoming
msgpack-c release which fixes the aforementioned issues.
Signed-off-by: James McCoy <jamessan@jamessan.com>
When building for X86 the CMake check_library_exists always fails to find
functions from the Win32 API due to name mangling conventions. The convention
for API functions is __stdcall and the CMake test code assumes __cdecl. Since
these are libraries from the Windows API we can simply link against the
libraries without checking for the functions.
Before this change, building Neovim would recursively search parent
directories for a .git directory. If Neovim was downloaded as a tarball
(i.e. without a .git directory), but placed in a subdirectory of
a Git repository, this caused a CMake error. Such a situation could
occur when packaging Neovim, for example.
Unfortunately, the previous attempt in #3317 did not fix this problem.
* Split build steps to utilize the Travis build lifecycle.
* Move shell code from `.travis.yml` into Bash files in `.ci/`,
one file for each step of the Travis build lifecycle.
* Use configuration variables in `.travis.yml` to change
build behavior (e.g. build 32-bit with `BUILD_32BIT=ON`).
* Keep all configuration in environment variables in
`.travis.yml`. In scripts, concatenate environment variables
according to configuration to change to different behavior.
* Add GCC 5 builds for Linux.
* Use Travis's caching feature [1] for third-party dependencies
and pip packages.
* Allow failures MSan, as the errors it reports have to be
fixed first.
Valgrind is still disabled, but can be enabled by setting
`env: VALGRIND=ON` for a job in `.travis.yml`.
[1] http://docs.travis-ci.com/user/caching
Piping input into nvim causes the helptags generation to hang. For
example, the following does not work:
yes | nvim -c "helptags ."
The helptags are generated during installation with a command similar
to the one above, using CMake's execute_process to call nvim.
As execute_process does not use an intermediate shell, the following
will cause the installation to hang:
yes | make install
pacaur, an Arch Linux package helper, uses a similar command to
install packages [1], and thus can currently not be used to install
Neovim.
This commit adds a workaround to GenerateHelptags.cmake to circumvent
this problem.
[1] 22c00a3d05/pacaur (L825)
For now, only install man pages matching "nvim*.1": we don't want to
install xxd.1 as it might conflict with that of a user's Vim
installation.
closes#1826
Reviewed-by: Florian Walch <florian@fwalch.com>
Helped-by: John Szakmeister <john@szakmeister.net>
Jemalloc will be used if the cmake option `USE_JEMALLOC` is enabled(which is the
default). To avoid trouble with clang's ASAN, it is disabled by default if the
`SANITIZE` option is enabled.
Since jemalloc has thread cache for small objects, it fills the gap created by
removing klib memory pools.
The `xstrdup` funciton(memory.c) had to be reimplemented on top of `xmalloc` to
make it work with a custom allocator.
- Read TEST_TAG/TEST_FILTER env vars from cmake/RunTests.cmake. Setting these
environment variables will pass --tags/--filter to busted, which can used to
filter which tests are executed.
- Remove calls to nvim msgpack-rpc API outside tests. This removes the
requirement of having a static `clear` call in test/functional/helpers.lua
- Use the new busted command-line option "--lazy" to ensure the setup/teardown
hooks are only executed when a suite runs at least one test.
Now its possible to run/debug a single test like this:
```sh
TEST_FILTER='some test string' make test
```
Which will only run tests containing "some test string" in the title.
Another option is:
```sh
TEST_TAG=some-tag make test
```
After putting #some-tag into the test title. This also improves debugging
experience because there will be no unnecessary gdbserver instances whe GDB=1 is
passed.
This requires a couple of extra modules that are not installed by
default, and it requires capturing stdout of the tests--otherwise CMake
output is intermixed with the XML output of busted.
It turns out that Busted started cleaning the environment in 2.0rc5 as a
result of Olivine-Labs/busted#62. This, in turn, caused the ffi module
to be reloaded for each spec file, and LuaJIT doesn't appreciate it.
The net effect is an assertion error in LuaJIT.
By using the --helper feature of Busted, we can pre-load some modules
ahead of Busted and prevent it from reloading them--making LuaJIT happy
again.
On some systems, such as NetBSD, the gettext header is tucked under the
gettext directory in the system include area. Let's add a path suffix
to ensure we correctly discover the header on such systems.
It turns out that CMake always canonicalizes `CMAKE_INSTALL_PREFIX` to
an absolute path--if it's a relative path, it canonicalizes it relative
to the build directory. As a result, the only thing the DESTDIR and
relative directory check prevents is an installation into the root
directory since CMake strips the trailing slash, turning "/" into an
empty string. Let's just remove the check all together, since it cannot
accomplish what we intended.
It turns out that `file(INSTALL ...)` already accounts for `DESTDIR`, so
this wasn't creating the directory structure in the correct location.
Instead, we need to do our existence check with `DESTDIR`, but leave it
off when doing the install step.
While we're at it, add a check to make sure `ENV{DESTDIR}` is not being
used with a relative path, as that construct doesn't make much sense.
This fixes issue #1387 discovered while trying to make helptag
generation work correctly in #1381.
If you aren't just building everything into build/, then the functional
tests fail because they can't find the nvim executable. Let's pass in
the location of the nvim executable, and set NVIM_PRG environment
variable accordingly.
