Remove code that allows dup sections

Duplicate sections in the config tree is a bad idea.
After more evaluation I decided to not allow more than one section
with the same name to be acceptable in the resulting object.
All duplicate sections need to be processed so that only
one section is left as a result. The collision flags control that.
It is OK to remove it as this code has not been released yet.
I also spotted that unit test does not exit if the system()
call was successful but the command it invoked was not.
Fixed that. Also fixed couple spelling mistakes here and there.

5 files changed, 30 insertions, 201 deletions

diff --git a/ini/ini.d/sexpect.conf b/ini/ini.d/sexpect.conf
index 6a9222b..93f7ed6 100644
--- a/ini/ini.d/sexpect.conf
+++ b/ini/ini.d/sexpect.conf
@@ -360,176 +360,6 @@ key1 = section2a Value 1
 key2 = section2a Value 2
 # Key 3
 key3 = section2a Value 3
-# Section mode: ALLOW, value mode: OVERWRITE
-[section1]
-# Key 1
-key1 = section1a Value 1
-# Key 2
-key2 = section1a Value 2
-# Key 3
-key3 = section1a Value 3
-
-[section2]
-# Key 1
-key1 = section2a Value 1
-# Key 2
-key2 = section2a Value 2
-# Key 3
-key3 = section2a Value 3
-
-[section1]
-# Key 1
-key1 = section1b Value 1
-# Key 2
-key2 = section1b Value 2
-# Key 3
-key3 = section1b Value 3
-
-[section2]
-# Key 1
-key1 = section2b Value 1
-# Key 2
-key2 = section2b Value 2
-# Key 3
-key3 = section2b Value 3
-
-#End of file
-# Section mode: ALLOW, value mode: ERROR
-[section1]
-# Key 1
-key1 = section1a Value 1
-# Key 2
-key2 = section1a Value 2
-# Key 3
-key3 = section1a Value 3
-
-[section2]
-# Key 1
-key1 = section2a Value 1
-# Key 2
-key2 = section2a Value 2
-# Key 3
-key3 = section2a Value 3
-
-[section1]
-# Key 1
-key1 = section1b Value 1
-# Key 2
-key2 = section1b Value 2
-# Key 3
-key3 = section1b Value 3
-
-[section2]
-# Key 1
-key1 = section2b Value 1
-# Key 2
-key2 = section2b Value 2
-# Key 3
-key3 = section2b Value 3
-
-#End of file
-# Section mode: ALLOW, value mode: PRESERVE
-[section1]
-# Key 1
-key1 = section1a Value 1
-# Key 2
-key2 = section1a Value 2
-# Key 3
-key3 = section1a Value 3
-
-[section2]
-# Key 1
-key1 = section2a Value 1
-# Key 2
-key2 = section2a Value 2
-# Key 3
-key3 = section2a Value 3
-
-[section1]
-# Key 1
-key1 = section1b Value 1
-# Key 2
-key2 = section1b Value 2
-# Key 3
-key3 = section1b Value 3
-
-[section2]
-# Key 1
-key1 = section2b Value 1
-# Key 2
-key2 = section2b Value 2
-# Key 3
-key3 = section2b Value 3
-
-#End of file
-# Section mode: ALLOW, value mode: ALLOW
-[section1]
-# Key 1
-key1 = section1a Value 1
-# Key 2
-key2 = section1a Value 2
-# Key 3
-key3 = section1a Value 3
-
-[section2]
-# Key 1
-key1 = section2a Value 1
-# Key 2
-key2 = section2a Value 2
-# Key 3
-key3 = section2a Value 3
-
-[section1]
-# Key 1
-key1 = section1b Value 1
-# Key 2
-key2 = section1b Value 2
-# Key 3
-key3 = section1b Value 3
-
-[section2]
-# Key 1
-key1 = section2b Value 1
-# Key 2
-key2 = section2b Value 2
-# Key 3
-key3 = section2b Value 3
-
-#End of file
-# Section mode: ALLOW, value mode: DETECT
-[section1]
-# Key 1
-key1 = section1a Value 1
-# Key 2
-key2 = section1a Value 2
-# Key 3
-key3 = section1a Value 3
-
-[section2]
-# Key 1
-key1 = section2a Value 1
-# Key 2
-key2 = section2a Value 2
-# Key 3
-key3 = section2a Value 3
-
-[section1]
-# Key 1
-key1 = section1b Value 1
-# Key 2
-key2 = section1b Value 2
-# Key 3
-key3 = section1b Value 3
-
-[section2]
-# Key 1
-key1 = section2b Value 1
-# Key 2
-key2 = section2b Value 2
-# Key 3
-key3 = section2b Value 3
-
-#End of file
 # Section mode: DETECT, value mode: OVERWRITE
 [section1]
 # Key 1
diff --git a/ini/ini_configobj.h b/ini/ini_configobj.h
index d1ceeb8..0ebe17d 100644
--- a/ini/ini_configobj.h
+++ b/ini/ini_configobj.h
@@ -278,7 +278,7 @@
  * These flags should be used during parsing to handle duplicate
  * keys coming from the same section scattered across the ini file.
  * These flags also can be used to specify the rules of merging
- * values that come from two files separate configuration files.
+ * values that come from two different configuration files.
  *
  * @{
  */
@@ -304,7 +304,7 @@
  * These flags should be used during parsing to handle duplicate
  * sections scattered across the ini file.
  * These flags also can be used to specify the rules of merging
- * sections that come from two separate configuration files.
+ * sections that come from two different configuration files.
  *
  * @{
  */
@@ -316,10 +316,8 @@
 #define INI_MS_OVERWRITE 0x0200
 /** @brief Second section is discarded */
 #define INI_MS_PRESERVE  0x0300
-/** @brief Duplicates are allowed */
-#define INI_MS_ALLOW     0x0400
-/** @brief Duplicates are allowed but errors are logged */
-#define INI_MS_DETECT    0x0500
+/** @brief Merge but log errors if duplicate sections are detected */
+#define INI_MS_DETECT    0x0400
 
 /**
  * @}
diff --git a/ini/ini_fileobj.c b/ini/ini_fileobj.c
index 73d7c4c..d26add4 100644
--- a/ini/ini_fileobj.c
+++ b/ini/ini_fileobj.c
@@ -65,7 +65,6 @@ int valid_collision_flags(uint32_t collision_flags)
         (flag != INI_MS_OVERWRITE) &&
         (flag != INI_MS_ERROR) &&
         (flag != INI_MS_PRESERVE) &&
-        (flag != INI_MS_ALLOW) &&
         (flag != INI_MS_DETECT)) {
         TRACE_ERROR_STRING("Invalid section collision flag","");
         return 0;
diff --git a/ini/ini_parse.c b/ini/ini_parse.c
index 4491a5c..c61536d 100644
--- a/ini/ini_parse.c
+++ b/ini/ini_parse.c
@@ -500,7 +500,6 @@ static int parser_save_section(struct parser_obj *po)
 {
     int error = EOK;
     uint32_t mergemode;
-    int add = 0;
     int merge = 0;
 
     TRACE_FLOW_ENTRY();
@@ -550,11 +549,6 @@ static int parser_save_section(struct parser_obj *po)
                 po->sec = NULL;
                 break;
 
-            case INI_MS_ALLOW:
-                TRACE_INFO_STRING("Allow mode", "");
-                add = 1;
-                break;
-
             case INI_MS_OVERWRITE:
                 /* Empty existing section */
                 TRACE_INFO_STRING("Ovewrite mode", "");
@@ -603,9 +597,7 @@ static int parser_save_section(struct parser_obj *po)
 
             po->merge_sec = NULL;
         }
-        else add = 1;
-
-        if (add) {
+        else {
             /* Add section to configuration */
             TRACE_INFO_STRING("Now adding collection", "");
             error = col_add_collection_to_collection(po->top,
diff --git a/ini/ini_parse_ut.c b/ini/ini_parse_ut.c
index bd90613..20b83af 100644
--- a/ini/ini_parse_ut.c
+++ b/ini/ini_parse_ut.c
@@ -226,8 +226,11 @@ int read_again_test(void)
         error = system(command);
         INIOUT(printf("Comparison of %s %s returned: %d\n",
                       infile, outfile, error));
-        if (error) break;
-
+        if ((error) || (WEXITSTATUS(error))) {
+            printf("Failed to run copy command %d %d.\n",  error, WEXITSTATUS(error));
+            error = -1;
+            break;
+        }
         i++;
     }
 
@@ -455,6 +458,10 @@ int merge_values_test(void)
     error = system(command);
     INIOUT(printf("Comparison of %s %s returned: %d\n",
                   resname, checkname, error));
+    if ((error) || (WEXITSTATUS(error))) {
+        printf("Failed to run copy command %d %d.\n",  error, WEXITSTATUS(error));
+        return -1;
+    }
 
     INIOUT(printf("<==== Merge values test end ====>\n"));
 
@@ -476,7 +483,6 @@ int merge_section_test(void)
                              INI_MS_ERROR,
                              INI_MS_OVERWRITE,
                              INI_MS_PRESERVE,
-                             INI_MS_ALLOW,
                              INI_MS_DETECT };
 
     uint32_t mflags[] = { INI_MV2S_OVERWRITE,
@@ -489,7 +495,6 @@ int merge_section_test(void)
                               "ERROR",
                               "OVERWRITE",
                               "PRESERVE",
-                              "ALLOW",
                               "DETECT" };
 
     const char *mstr[] = { "OVERWRITE",
@@ -524,7 +529,7 @@ int merge_section_test(void)
         return error;
     }
 
-    for (i = 0; i < 6; i++) {
+    for (i = 0; i < 5; i++) {
         for (j = 0; j < 5; j++) {
 
             INIOUT(printf("<==== Testing mode %s + %s ====>\n",
@@ -656,6 +661,11 @@ int merge_section_test(void)
     INIOUT(printf("Comparison of %s %s returned: %d\n",
                   resname, checkname, error));
 
+    if ((error) || (WEXITSTATUS(error))) {
+        printf("Failed to run diff command %d %d.\n",  error, WEXITSTATUS(error));
+        return -1;
+    }
+
     INIOUT(printf("<==== Merge section test end ====>\n"));
 
     return error;
@@ -685,9 +695,9 @@ int startup_test(void)
     INIOUT(printf("Running command '%s'\n", command));
 
     error = system(command);
-    if(error) {
-        printf("Failed to run copy command %d.\n",  error);
-        return error;
+    if ((error) || (WEXITSTATUS(error))) {
+        printf("Failed to run copy command %d %d.\n",  error, WEXITSTATUS(error));
+        return -1;
     }
 
     INIOUT(printf("Running chmod 660 on file '%s'\n", outfile));
@@ -804,14 +814,14 @@ int reload_test(void)
     INIOUT(printf("Running command '%s'\n", command));
 
     error = system(command);
-    if(error) {
-        printf("Failed to run copy command %d.\n",  error);
-        return error;
+    if ((error) || (WEXITSTATUS(error))) {
+        printf("Failed to run copy command %d %d.\n",  error, WEXITSTATUS(error));
+        return -1;
     }
 
     INIOUT(printf("Running chmod 660 on file '%s'\n", outfile));
     error = chmod(outfile, S_IRUSR | S_IWUSR);
-    if(error) {
+    if (error) {
         error = errno;
         printf("Failed to run chmod command %d.\n",  error);
         return error;
@@ -912,10 +922,10 @@ int reload_test(void)
     INIOUT(printf("Copy file again with command '%s'\n", command));
 
     error = system(command);
-    if(error) {
-        printf("Failed to run copy command %d.\n",  error);
+    if ((error) || (WEXITSTATUS(error))) {
+        printf("Failed to run copy command %d %d.\n",  error, WEXITSTATUS(error));
         ini_config_file_destroy(file_ctx);
-        return error;
+        return -1;
     }
 
     INIOUT(printf("Read file again.\n"));