ci: run FreeBSD on a VM in github ci, instead of on the Cirrus service (which stopped working today) (#23692)

ci/common/runner.v

@@ -14,6 +14,9 @@ pub fn exec(command string) {
 	}
 }
 
+const self_command = 'v ' +
+	os.real_path(os.executable()).replace_once(os.real_path(@VROOT), '').trim_left('/\\') + '.vsh'
+
 pub const is_github_job = os.getenv('GITHUB_JOB') != ''
 
 pub type Fn = fn ()
@@ -24,12 +27,14 @@ pub mut:
 	label string
 }
 
-pub fn (t Task) run() {
-	log.info(term.colorize(term.yellow, t.label))
+pub fn (t Task) run(tname string) {
+	cmd := '${self_command} ${tname}'
+	log.info('Start ${term.colorize(term.yellow, t.label)}, cmd: `${cmd}`')
 	start := time.now()
 	t.f()
 	dt := time.now() - start
-	log.info('Finished ${term.colorize(term.yellow, t.label)} in ${dt.milliseconds()} ms')
+	log.info('Finished ${term.colorize(term.yellow, t.label)} in ${dt.milliseconds()} ms, cmd: `${cmd}`')
+	println('')
 }
 
 pub fn run(all_tasks map[string]Task) {
@@ -43,14 +48,14 @@ pub fn run(all_tasks map[string]Task) {
 	task_name := os.args[1]
 	if task_name == 'all' {
 		log.info(term.colorize(term.green, 'Run everything...'))
-		for _, t in all_tasks {
-			t.run()
+		for tname, t in all_tasks {
+			t.run(tname)
 		}
 		exit(0)
 	}
 	t := all_tasks[task_name] or {
-		eprintln('Unknown task: ${task_name}')
+		eprintln('Unknown task with name: `${task_name}`')
 		exit(1)
 	}
-	t.run()
+	t.run(task_name)
 }

ci/freebsd_ci.vsh

@@ -0,0 +1,59 @@
+import os
+import common { Task, exec }
+
+fn v_doctor() {
+	dump(os.getenv('PATH'))
+	exec('v doctor')
+	if common.is_github_job {
+		exec('freebsd-version')
+		exec('sysctl hw.model')
+		exec('sysctl hw.ncpu')
+		exec('sysctl hw.physmem')
+		exec('sysctl hw.usermem')
+		exec('whoami')
+		exec('pwd')
+		exec('ls -la')
+		exec('git log -n1')
+		exec('cc --version')
+	}
+}
+
+fn verify_v_test_works() {
+	exec('echo \$VFLAGS')
+	exec('v cmd/tools/test_if_v_test_system_works.v')
+	exec('./cmd/tools/test_if_v_test_system_works')
+}
+
+fn build_fast_script() {
+	exec('cd cmd/tools/fast && v fast.v')
+}
+
+fn check_math() {
+	exec('v test vlib/math')
+	println('Test the math module, using only the pure V versions,')
+	println('                          without the .c.v overrides.')
+	exec('v -exclude @vlib/math/*.c.v test vlib/math')
+}
+
+fn check_compress() {
+	exec('v test vlib/compress')
+}
+
+fn run_essential_tests() {
+	if common.is_github_job {
+		exec('VTEST_JUST_ESSENTIAL=1 v test-self')
+	} else {
+		exec('VTEST_JUST_ESSENTIAL=1 v -progress test-self')
+	}
+}
+
+const all_tasks = {
+	'v_doctor':            Task{v_doctor, 'Run v doctor'}
+	'verify_v_test_works': Task{verify_v_test_works, 'Verify that v test works'}
+	'build_fast_script':   Task{build_fast_script, 'Check that building fast.v works'}
+	'check_math':          Task{check_math, 'Check the `math` module works'}
+	'check_compress':      Task{check_compress, 'Check the `compress` module works'}
+	'run_essential_tests': Task{run_essential_tests, 'Run only the essential tests'}
+}
+
+common.run(all_tasks)

ci/linux_ci.vsh

@@ -50,8 +50,8 @@ fn v_doctor() {
 //
 
 fn build_v_with_prealloc() {
-	exec('v -d debug_malloc -d debug_realloc -o v cmd/v')
-	exec('v -cg -cstrict -o v cmd/v')
+	exec('v -d debug_malloc -d debug_realloc -o vdebug1 cmd/v')
+	exec('v -cg -cstrict -o vstrict1 cmd/v')
 	exec('v -o vrealloc -prealloc cmd/v && ./vrealloc -o v3 cmd/v && ./v3 -o v4 cmd/v')
 }
 
@@ -68,7 +68,7 @@ fn install_dependencies_for_examples_and_tools_tcc() {
 
 fn test_v_to_c_tcc() {
 	exec('thirdparty/tcc/tcc.exe -version')
-	exec('v -cg -o v cmd/v') // ensure vtcc can build itself twice
+	exec('v -cg -o vtcc cmd/v') // ensure vtcc can build itself twice
 }
 
 fn v_self_compilation_tcc() {
@@ -175,7 +175,7 @@ fn install_dependencies_for_examples_and_tools_gcc() {
 }
 
 fn recompile_v_with_cstrict_gcc() {
-	exec('v -cc gcc -cg -cstrict -o v cmd/v')
+	exec('v -cc gcc -cg -cstrict -o vstrict cmd/v')
 }
 
 fn valgrind_v_c_gcc() {
@@ -292,7 +292,7 @@ fn install_dependencies_for_examples_and_tools_clang() {
 }
 
 fn recompile_v_with_cstrict_clang() {
-	exec('v -cc clang -cg -cstrict -o v cmd/v')
+	exec('v -cc clang -cg -cstrict -o vstrict cmd/v')
 }
 
 fn valgrind_clang() {

ci/macos_ci.vsh

@@ -10,7 +10,7 @@ fn test_cross_compilation() {
 }
 
 fn build_with_cstrict() {
-	exec('v -cg -cstrict -o v cmd/v')
+	exec('v -cg -cstrict -o vstrict1 cmd/v')
 }
 
 fn all_code_is_formatted() {