config_format: yaml: windows: Handle directory separator for include directive on yaml config correctly on windows

src/config_format/flb_cf_yaml.c

@@ -1934,10 +1934,16 @@ static int read_config(struct flb_cf *conf, struct local_ctx *ctx,
             return -1;
         }
 
-        if (flb_sds_printf(&include_dir, "%s/%s", parent->path, cfg_file) == NULL) {
+#ifdef _WIN32
+#define PATH_CONCAT_TEMPLATE "%s\\%s"
+#else
+#define PATH_CONCAT_TEMPLATE "%s/%s"
+#endif
+        if (flb_sds_printf(&include_dir, PATH_CONCAT_TEMPLATE, parent->path, cfg_file) == NULL) {
             flb_error("unable to create full filename");
             return -1;
         }
+#undef PATH_CONCAT_TEMPLATE
 
     }
     else {

tests/internal/config_format_yaml.c

@@ -11,10 +11,22 @@
 
 #include "flb_tests_internal.h"
 
+#ifdef _WIN32
+#define FLB_TESTS_CONF_PATH FLB_TESTS_DATA_PATH "\\data\\config_format\\yaml"
+#else
 #define FLB_TESTS_CONF_PATH FLB_TESTS_DATA_PATH "/data/config_format/yaml"
+#endif
+
 #define FLB_000 FLB_TESTS_CONF_PATH "/fluent-bit.yaml"
 #define FLB_001 FLB_TESTS_CONF_PATH "/issue_7559.yaml"
 #define FLB_002 FLB_TESTS_CONF_PATH "/processors.yaml"
+#define FLB_000_WIN FLB_TESTS_CONF_PATH "\\fluent-bit-windows.yaml"
+
+#ifdef _WIN32
+#define FLB_BASIC FLB_000_WIN
+#else
+#define FLB_BASIC FLB_000
+#endif
 
 /*
  * Configurations to test:
@@ -39,7 +51,7 @@ static void test_basic()
     struct cfl_variant *v;
     int idx = 0;
 
-    cf = flb_cf_yaml_create(NULL, FLB_000, NULL, 0);
+    cf = flb_cf_yaml_create(NULL, FLB_BASIC, NULL, 0);
     TEST_CHECK(cf != NULL);
     if (!cf) {
         exit(EXIT_FAILURE);

tests/internal/data/config_format/yaml/fluent-bit-windows.yaml

@@ -0,0 +1,29 @@
+env:
+    flush_interval: 1
+
+includes:
+    - service-windows.yaml
+
+customs:
+    - name: ${observability}
+      api_key: zyJUb2tlbklEItoiY2ZlMTcx
+
+pipeline:
+    inputs:
+        - name: tail
+          path: ./test.log
+          parser: json
+          read_from_head: true
+        - name: tail
+          path: ./test.log
+          parser: json
+          read_from_head: true
+
+    filters:
+        - name: record_modifier
+          match: "*"
+          record: powered_by calyptia
+
+    outputs:
+        - name: stdout
+          match: "*"

tests/internal/data/config_format/yaml/service-windows.yaml

@@ -0,0 +1,5 @@
+env:
+    observability: calyptia
+
+includes:
+    - test\nested.yaml