make: added 'html_order' and 'atom_order' settings

these settings are used to change the order of the posts on the listings.
by default, users are supposed to list their posts from older to newer in
the blogcfile, and blogc-make will list them on descending order, both for
html listings and atom listings.

2 files changed, 22 insertions, 0 deletions

diff --git a/src/blogc-make/rules.c b/src/blogc-make/rules.c
index dd59d51..f27ef91 100644
--- a/src/blogc-make/rules.c
+++ b/src/blogc-make/rules.c
@@ -21,6 +21,20 @@
 #include "rules.h"
 
 
+static void
+posts_ordering(bm_ctx_t *ctx, bc_trie_t *variables, const char *variable)
+{
+    if (ctx == NULL || ctx->settings == NULL || ctx->settings->settings == NULL)
+        return;  // something is wrong, let's not add any variable
+
+    const char *value = bc_trie_lookup(ctx->settings->settings, variable);
+    if (value != NULL && ((0 == strcmp(value, "ASC")) || (0 == strcmp(value, "asc"))))
+        return;  // user explicitly asked for ASC
+
+    bc_trie_insert(variables, "FILTER_REVERSE", bc_strdup("1"));
+}
+
+
 // INDEX RULE
 
 static bc_slist_t*
@@ -55,6 +69,7 @@ index_exec(bm_ctx_t *ctx, bc_slist_t *outputs, bc_trie_t *args)
     bc_trie_insert(variables, "FILTER_PER_PAGE",
         bc_strdup(bc_trie_lookup(ctx->settings->settings, "posts_per_page")));
     bc_trie_insert(variables, "FILTER_PAGE", bc_strdup("1"));
+    posts_ordering(ctx, variables, "html_order");
     bc_trie_insert(variables, "DATE_FORMAT",
         bc_strdup(bc_trie_lookup(ctx->settings->settings, "date_format")));
     bc_trie_insert(variables, "MAKE_RULE", bc_strdup("index"));
@@ -112,6 +127,7 @@ atom_exec(bm_ctx_t *ctx, bc_slist_t *outputs, bc_trie_t *args)
         bc_strdup(bc_trie_lookup(ctx->settings->settings,
         "atom_posts_per_page")));
     bc_trie_insert(variables, "FILTER_PAGE", bc_strdup("1"));
+    posts_ordering(ctx, variables, "atom_order");
     bc_trie_insert(variables, "DATE_FORMAT", bc_strdup("%Y-%m-%dT%H:%M:%SZ"));
     bc_trie_insert(variables, "MAKE_RULE", bc_strdup("atom"));
     bc_trie_insert(variables, "MAKE_TYPE", bc_strdup("atom"));
@@ -171,6 +187,7 @@ atom_tags_exec(bm_ctx_t *ctx, bc_slist_t *outputs, bc_trie_t *args)
         bc_strdup(bc_trie_lookup(ctx->settings->settings,
         "atom_posts_per_page")));
     bc_trie_insert(variables, "FILTER_PAGE", bc_strdup("1"));
+    posts_ordering(ctx, variables, "atom_order");
     bc_trie_insert(variables, "DATE_FORMAT", bc_strdup("%Y-%m-%dT%H:%M:%SZ"));
     bc_trie_insert(variables, "MAKE_RULE", bc_strdup("atom_tags"));
     bc_trie_insert(variables, "MAKE_TYPE", bc_strdup("atom"));
@@ -240,6 +257,7 @@ pagination_exec(bm_ctx_t *ctx, bc_slist_t *outputs, bc_trie_t *args)
     bc_trie_t *variables = bc_trie_new(free);
     bc_trie_insert(variables, "FILTER_PER_PAGE",
         bc_strdup(bc_trie_lookup(ctx->settings->settings, "posts_per_page")));
+    posts_ordering(ctx, variables, "html_order");
     bc_trie_insert(variables, "DATE_FORMAT",
         bc_strdup(bc_trie_lookup(ctx->settings->settings, "date_format")));
     bc_trie_insert(variables, "MAKE_RULE", bc_strdup("pagination"));
@@ -301,6 +319,7 @@ posts_exec(bm_ctx_t *ctx, bc_slist_t *outputs, bc_trie_t *args)
     bc_trie_insert(variables, "IS_POST", bc_strdup("1"));
     bc_trie_insert(variables, "DATE_FORMAT",
         bc_strdup(bc_trie_lookup(ctx->settings->settings, "date_format")));
+    posts_ordering(ctx, variables, "html_order");
     bc_trie_insert(variables, "MAKE_RULE", bc_strdup("posts"));
     bc_trie_insert(variables, "MAKE_TYPE", bc_strdup("post"));
 
@@ -363,6 +382,7 @@ tags_exec(bm_ctx_t *ctx, bc_slist_t *outputs, bc_trie_t *args)
         bc_strdup(bc_trie_lookup(ctx->settings->settings,
         "atom_posts_per_page")));
     bc_trie_insert(variables, "FILTER_PAGE", bc_strdup("1"));
+    posts_ordering(ctx, variables, "html_order");
     bc_trie_insert(variables, "DATE_FORMAT",
         bc_strdup(bc_trie_lookup(ctx->settings->settings, "date_format")));
     bc_trie_insert(variables, "MAKE_RULE", bc_strdup("tags"));
diff --git a/src/blogc-make/settings.c b/src/blogc-make/settings.c
index c80feaa..9e24d41 100644
--- a/src/blogc-make/settings.c
+++ b/src/blogc-make/settings.c
@@ -37,10 +37,12 @@ static const struct default_settings_map {
     {"index_prefix", NULL},
     {"post_prefix", "post"},
     {"tag_prefix", "tag"},
+    {"html_order", "DESC"},
 
     // atom
     {"atom_prefix", "atom"},
     {"atom_ext", ".xml"},
+    {"atom_order", "DESC"},
 
     // generic
     {"date_format", "%b %d, %Y, %I:%M %p GMT"},