ci: normalise paths on windows to the unix ones for uniformity and co…

…nsistent behaviour of the tests

cmd/tools/vcover/cover_test.v

@@ -29,21 +29,26 @@ fn test_help() {
 	assert res.output.contains('-A, --absolute            Use absolute paths for all files')
 }
 
+fn np(path string) string {
+	return path.replace('\\', '/')
+}
+
 fn test_simple() {
-	t1 := os.join_path(tfolder, 't1')
-	t2 := os.join_path(tfolder, 't2')
-	t3 := os.join_path(tfolder, 't3')
-	assert !os.exists(t1)
-	assert !os.exists(t2)
-	assert !os.exists(t3)
+	t1 := np(os.join_path(tfolder, 't1'))
+	t2 := np(os.join_path(tfolder, 't2'))
+	t3 := np(os.join_path(tfolder, 't3'))
+	assert !os.exists(t1), t1
+	assert !os.exists(t2), t2
+	assert !os.exists(t3), t3
 
 	r1 := os.execute('${os.quoted_path(vexe)} -coverage ${os.quoted_path(t1)} cmd/tools/vcover/testdata/simple/t1_test.v')
 	assert r1.exit_code == 0, r1.str()
 	assert r1.output.trim_space() == '10', r1.str()
 	assert os.exists(t1), t1
-	filter1 := os.execute('${os.quoted_path(vexe)} cover ${os.quoted_path(t1)} --filter vcover/testdata/simple/')
+	cmd := '${os.quoted_path(vexe)} cover ${os.quoted_path(t1)} --filter vcover/testdata/simple/'
+	filter1 := os.execute(cmd)
 	assert filter1.exit_code == 0, filter1.output
-	assert filter1.output.contains('cmd/tools/vcover/testdata/simple/simple.v')
+	assert filter1.output.contains('cmd/tools/vcover/testdata/simple/simple.v'), filter1.output
 	assert filter1.output.trim_space().ends_with('|      4 |      9 |  44.44%'), filter1.output
 	hfilter1 := os.execute('${os.quoted_path(vexe)} cover ${os.quoted_path(t1)} --filter vcover/testdata/simple/ -H -P false')
 	assert hfilter1.exit_code == 0, hfilter1.output

cmd/tools/vcover/main.v

@@ -35,7 +35,8 @@ const metadata_extension = '.json'
 const vcounter_glob_pattern = 'vcounters_*.csv'
 
 fn (mut ctx Context) load_meta(folder string) {
-	for mfile in os.walk_ext(folder, metadata_extension) {
+	for omfile in os.walk_ext(folder, metadata_extension) {
+		mfile := omfile.replace('\\', '/')
 		content := os.read_file(mfile) or { '' }
 		meta := os.file_name(mfile.replace(metadata_extension, ''))
 		data := json.decode(MetaData, content) or {

vlib/v/gen/c/coverage.v

@@ -48,24 +48,26 @@ fn (mut g Gen) write_coverage_point(pos token.Pos) {
 
 fn (mut g Gen) write_coverage_stats() {
 	build_options := g.pref.build_options.join(' ')
-	coverage_meta_folder := os.join_path(g.pref.coverage_dir, 'meta')
+	coverage_dir := os.real_path(g.pref.coverage_dir).replace('\\', '/')
+	coverage_meta_folder := '${coverage_dir}/meta'
 	if !os.exists(coverage_meta_folder) {
 		os.mkdir_all(coverage_meta_folder) or {}
 	}
 	counter_ulid := rand.ulid() // rand.ulid provides a hash+timestamp, so that a collision is extremely unlikely
 	g.cov_declarations.writeln('')
 	g.cov_declarations.writeln('void vprint_coverage_stats() {')
 	g.cov_declarations.writeln('\tchar cov_filename[2048];')
-	covdir := cesc(os.real_path(g.pref.coverage_dir))
+	covdir := cesc(coverage_dir)
 	g.cov_declarations.writeln('\tchar *cov_dir = "${covdir}";')
 	for _, mut cov in g.coverage_files {
-		metadata_coverage_fpath := os.join_path(coverage_meta_folder, '${cov.fhash}.json')
+		metadata_coverage_fpath := '${coverage_meta_folder}/${cov.fhash}.json'
+		filepath := os.real_path(cov.file.path).replace('\\', '/')
 		if os.exists(metadata_coverage_fpath) {
 			continue
 		}
 		mut fmeta := os.create(metadata_coverage_fpath) or { continue }
 		fmeta.writeln('{') or { continue }
-		jfilepath := jesc(os.real_path(cov.file.path))
+		jfilepath := jesc(filepath)
 		jfhash := jesc(cov.fhash)
 		jversion := jesc(version.full_v_version(true))
 		jboptions := jesc(cov.build_options)