uci: fix excessive reorder delta entry duplication

[project/uci.git] / list.c

diff --git a/list.c b/list.c
index fabad4d..e6ef1c1 100644 (file)
--- a/list.c
+++ b/list.c
@@ -217,7 +217,7 @@ uci_free_section(struct uci_section *s)
        uci_free_element(&s->e);
 }
 
-__plugin struct uci_package *
+__private struct uci_package *
 uci_alloc_package(struct uci_context *ctx, const char *name)
 {
        struct uci_package *p;
@@ -485,7 +485,7 @@ static void uci_add_element_list(struct uci_context *ctx, struct uci_ptr *ptr, b
 int uci_rename(struct uci_context *ctx, struct uci_ptr *ptr)
 {
        /* NB: UCI_INTERNAL use means without delta tracking */
-       bool internal = ctx->internal;
+       bool internal = ctx && ctx->internal;
        struct uci_element *e;
        struct uci_package *p;
        char *n;
@@ -515,12 +515,13 @@ int uci_rename(struct uci_context *ctx, struct uci_ptr *ptr)
 int uci_reorder_section(struct uci_context *ctx, struct uci_section *s, int pos)
 {
        struct uci_package *p = s->package;
+       bool internal = ctx && ctx->internal;
        char order[32];
 
        UCI_HANDLE_ERR(ctx);
 
        uci_list_set_pos(&s->package->sections, &s->e.list, pos);
-       if (!ctx->internal && p->has_delta) {
+       if (!internal && p->has_delta) {
                sprintf(order, "%d", pos);
                uci_add_delta(ctx, &p->delta, UCI_CMD_REORDER, s->e.name, NULL, order);
        }
@@ -530,7 +531,7 @@ int uci_reorder_section(struct uci_context *ctx, struct uci_section *s, int pos)
 
 int uci_add_section(struct uci_context *ctx, struct uci_package *p, const char *type, struct uci_section **res)
 {
-       bool internal = ctx->internal;
+       bool internal = ctx && ctx->internal;
        struct uci_section *s;
 
        UCI_HANDLE_ERR(ctx);
@@ -547,21 +548,39 @@ int uci_add_section(struct uci_context *ctx, struct uci_package *p, const char *
 int uci_delete(struct uci_context *ctx, struct uci_ptr *ptr)
 {
        /* NB: pass on internal flag to uci_del_element */
-       bool internal = ctx->internal;
+       bool internal = ctx && ctx->internal;
        struct uci_package *p;
-       struct uci_element *e;
+       struct uci_element *e1, *e2, *tmp;
+       int index;
 
        UCI_HANDLE_ERR(ctx);
 
-       e = uci_expand_ptr(ctx, ptr, true);
+       e1 = uci_expand_ptr(ctx, ptr, true);
        p = ptr->p;
 
        UCI_ASSERT(ctx, ptr->s);
 
+       if (ptr->value && *ptr->value && ptr->o && ptr->o->type == UCI_TYPE_LIST) {
+               if (!sscanf(ptr->value, "%d", &index))
+                       return 1;
+
+               uci_foreach_element_safe(&ptr->o->v.list, tmp, e2) {
+                       if (index == 0) {
+                               if (!internal && p->has_delta)
+                                       uci_add_delta(ctx, &p->delta, UCI_CMD_REMOVE, ptr->section, ptr->option, ptr->value);
+                               uci_free_option(uci_to_option(e2));
+                               return 0;
+                       }
+                       index--;
+               }
+
+               return 0;
+       }
+
        if (!internal && p->has_delta)
                uci_add_delta(ctx, &p->delta, UCI_CMD_REMOVE, ptr->section, ptr->option, NULL);
 
-       uci_free_any(&e);
+       uci_free_any(&e1);
 
        if (ptr->option)
                ptr->o = NULL;
@@ -574,7 +593,7 @@ int uci_delete(struct uci_context *ctx, struct uci_ptr *ptr)
 int uci_add_list(struct uci_context *ctx, struct uci_ptr *ptr)
 {
        /* NB: UCI_INTERNAL use means without delta tracking */
-       bool internal = ctx->internal;
+       bool internal = ctx && ctx->internal;
        struct uci_option *prev = NULL;
        const char *value2 = NULL;
 
@@ -612,10 +631,42 @@ int uci_add_list(struct uci_context *ctx, struct uci_ptr *ptr)
        return 0;
 }
 
+int uci_del_list(struct uci_context *ctx, struct uci_ptr *ptr)
+{
+       /* NB: pass on internal flag to uci_del_element */
+       bool internal = ctx && ctx->internal;
+       struct uci_element *e, *tmp;
+       struct uci_package *p;
+
+       UCI_HANDLE_ERR(ctx);
+
+       uci_expand_ptr(ctx, ptr, false);
+       UCI_ASSERT(ctx, ptr->s);
+       UCI_ASSERT(ctx, ptr->value);
+
+       if (!(ptr->o && ptr->option))
+               return 0;
+
+       if ((ptr->o->type != UCI_TYPE_LIST))
+               return 0;
+
+       p = ptr->p;
+       if (!internal && p->has_delta)
+               uci_add_delta(ctx, &p->delta, UCI_CMD_LIST_DEL, ptr->section, ptr->option, ptr->value);
+
+       uci_foreach_element_safe(&ptr->o->v.list, tmp, e) {
+               if (!strcmp(ptr->value, uci_to_option(e)->e.name)) {
+                       uci_free_option(uci_to_option(e));
+               }
+       }
+
+       return 0;
+}
+
 int uci_set(struct uci_context *ctx, struct uci_ptr *ptr)
 {
        /* NB: UCI_INTERNAL use means without delta tracking */
-       bool internal = ctx->internal;
+       bool internal = ctx && ctx->internal;
 
        UCI_HANDLE_ERR(ctx);
        uci_expand_ptr(ctx, ptr, false);