ci: add cirrus to isCI function to skip tests (#20526)

The environment variable CIRRUS_CI is manually passed to RunTests.cmake
as it doesn't get passed when using cmake script mode.

CMakeLists.txt

@@ -721,6 +721,7 @@ if(BUSTED_PRG)
         -DTEST_DIR=${CMAKE_CURRENT_SOURCE_DIR}/test
         -DBUILD_DIR=${CMAKE_BINARY_DIR}
         -DTEST_TYPE=unit
+        -DCIRRUS_CI=$ENV{CIRRUS_CI}
         -P ${PROJECT_SOURCE_DIR}/cmake/RunTests.cmake
       DEPENDS ${UNITTEST_PREREQS}
       ${TEST_TARGET_ARGS})
@@ -751,6 +752,7 @@ if(BUSTED_PRG)
       -DTEST_DIR=${CMAKE_CURRENT_SOURCE_DIR}/test
       -DBUILD_DIR=${CMAKE_BINARY_DIR}
       -DTEST_TYPE=functional
+      -DCIRRUS_CI=$ENV{CIRRUS_CI}
       -P ${PROJECT_SOURCE_DIR}/cmake/RunTests.cmake
     DEPENDS ${FUNCTIONALTEST_PREREQS}
     ${TEST_TARGET_ARGS})
@@ -766,6 +768,7 @@ if(BUSTED_PRG)
       -DTEST_DIR=${CMAKE_CURRENT_SOURCE_DIR}/test
       -DBUILD_DIR=${CMAKE_BINARY_DIR}
       -DTEST_TYPE=benchmark
+      -DCIRRUS_CI=$ENV{CIRRUS_CI}
       -P ${PROJECT_SOURCE_DIR}/cmake/RunTests.cmake
     DEPENDS ${BENCHMARK_PREREQS}
     ${TEST_TARGET_ARGS})
@@ -783,6 +786,7 @@ if(BUSTED_LUA_PRG)
       -DTEST_DIR=${CMAKE_CURRENT_SOURCE_DIR}/test
       -DBUILD_DIR=${CMAKE_BINARY_DIR}
       -DTEST_TYPE=functional
+      -DCIRRUS_CI=$ENV{CIRRUS_CI}
       -P ${PROJECT_SOURCE_DIR}/cmake/RunTests.cmake
     DEPENDS ${FUNCTIONALTEST_PREREQS}
     ${TEST_TARGET_ARGS})

cmake/RunTests.cmake

@@ -3,8 +3,8 @@ set(ENV{LC_ALL} "en_US.UTF-8")
 
 if(POLICY CMP0012)
   # Avoid policy warning due to CI=true. This is needed even if the main
-  # project has already set this policy as policy settings are reset when using
-  # the cmake script mode (-P).
+  # project has already set this policy as project settings aren't inherited
+  # when using cmake script mode (-P).
   cmake_policy(SET CMP0012 NEW)
 endif()
 
@@ -15,6 +15,12 @@ set(ENV{XDG_DATA_HOME} ${BUILD_DIR}/Xtest_xdg/share)
 unset(ENV{XDG_DATA_DIRS})
 unset(ENV{NVIM})  # Clear $NVIM in case tests are running from Nvim. #11009
 
+# TODO(dundargoc): The CIRRUS_CI environment variable isn't passed to here from
+# the main CMakeLists.txt, so we have to manually pass it to this script and
+# re-set the environment variable. Investigate if we can avoid manually setting
+# it like with the GITHUB_CI environment variable.
+set(ENV{CIRRUS_CI} ${CIRRUS_CI})
+
 if(NOT DEFINED ENV{NVIM_LOG_FILE})
   set(ENV{NVIM_LOG_FILE} ${BUILD_DIR}/.nvimlog)
 endif()

test/functional/api/server_notifications_spec.lua

@@ -7,7 +7,6 @@ local exec_lua = helpers.exec_lua
 local retry = helpers.retry
 local isCI = helpers.isCI
 local assert_alive = helpers.assert_alive
-local uname = helpers.uname
 
 describe('notify', function()
   local channel
@@ -79,9 +78,6 @@ describe('notify', function()
   end)
 
   it('cancels stale events on channel close', function()
-    if uname() == 'freebsd' then
-      pending('Failing FreeBSD test')
-    end
     if isCI() then
       pending('hangs on CI #14083 #15251')
       return

test/functional/core/fileio_spec.lua

@@ -25,7 +25,7 @@ local expect_exit = helpers.expect_exit
 local write_file = helpers.write_file
 local Screen = require('test.functional.ui.screen')
 local feed_command = helpers.feed_command
-local uname = helpers.uname
+local isCI = helpers.isCI
 
 describe('fileio', function()
   before_each(function()
@@ -87,8 +87,8 @@ describe('fileio', function()
   end)
 
   it('backup #9709', function()
-    if uname() == 'freebsd' then
-      pending('Failing FreeBSD test')
+    if isCI('cirrus') then
+      pending('FIXME: cirrus')
     end
     clear({ args={ '-i', 'Xtest_startup_shada',
                    '--cmd', 'set directory=Xtest_startup_swapdir' } })
@@ -109,8 +109,8 @@ describe('fileio', function()
   end)
 
   it('backup with full path #11214', function()
-    if uname() == 'freebsd' then
-      pending('Failing FreeBSD test')
+    if isCI('cirrus') then
+      pending('FIXME: cirrus')
     end
     clear()
     mkdir('Xtest_backupdir')

test/functional/ex_cmds/write_spec.lua

@@ -9,7 +9,7 @@ local feed_command = helpers.feed_command
 local funcs = helpers.funcs
 local meths = helpers.meths
 local iswin = helpers.iswin
-local uname = helpers.uname
+local isCI = helpers.isCI
 
 local fname = 'Xtest-functional-ex_cmds-write'
 local fname_bak = fname .. '~'
@@ -53,8 +53,8 @@ describe(':write', function()
   end)
 
   it('&backupcopy=no replaces symlink with new file', function()
-    if uname() == 'freebsd' then
-      pending('Failing FreeBSD test')
+    if isCI('cirrus') then
+      pending('FIXME: cirrus')
     end
     command('set backupcopy=no')
     write_file('test_bkc_file.txt', 'content0')
@@ -95,8 +95,8 @@ describe(':write', function()
   end)
 
   it('errors out correctly', function()
-    if uname() == 'freebsd' then
-      pending('Failing FreeBSD test')
+    if isCI('cirrus') then
+      pending('FIXME: cirrus')
     end
     command('let $HOME=""')
     eq(funcs.fnamemodify('.', ':p:h'), funcs.fnamemodify('.', ':p:h:~'))

test/functional/plugin/man_spec.lua

@@ -8,6 +8,7 @@ local nvim_prog = helpers.nvim_prog
 local matches = helpers.matches
 local write_file = helpers.write_file
 local tmpname = helpers.tmpname
+local isCI = helpers.isCI
 
 clear()
 if funcs.executable('man') == 0 then
@@ -160,6 +161,9 @@ describe(':Man', function()
   end)
 
   it('reports non-existent man pages for absolute paths', function()
+    if isCI('cirrus') then
+      pending('FIXME: cirrus')
+    end
     local actual_file = tmpname()
     -- actual_file must be an absolute path to an existent file for us to test against it
     matches('^/.+', actual_file)

test/functional/terminal/ex_terminal_spec.lua

@@ -10,7 +10,7 @@ local retry = helpers.retry
 local ok = helpers.ok
 local iswin = helpers.iswin
 local command = helpers.command
-local uname = helpers.uname
+local isCI = helpers.isCI
 
 describe(':terminal', function()
   local screen
@@ -46,8 +46,8 @@ describe(':terminal', function()
   end)
 
   it("reads output buffer on terminal reporting #4151", function()
-    if uname() == 'freebsd' then
-      pending('Failing FreeBSD test')
+    if isCI('cirrus') then
+      pending('FIXME: cirrus')
     end
     if helpers.pending_win32(pending) then return end
     if iswin() then

test/helpers.lua

@@ -790,10 +790,10 @@ end
 
 function module.isCI(name)
   local any = (name == nil)
-  assert(any or name == 'github')
+  assert(any or name == 'github' or name == 'cirrus')
   local gh = ((any or name == 'github') and nil ~= os.getenv('GITHUB_ACTIONS'))
-  return gh
-
+  local cirrus = ((any or name == 'cirrus') and nil ~= os.getenv('CIRRUS_CI'))
+  return gh or cirrus
 end
 
 -- Gets the (tail) contents of `logfile`.