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.

4 files changed, 145 insertions, 5 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"},
diff --git a/tests/blogc-make/check_blogc_make.sh.in b/tests/blogc-make/check_blogc_make.sh.in
index beb1f6c..d27c3c0 100755
--- a/tests/blogc-make/check_blogc_make.sh.in
+++ b/tests/blogc-make/check_blogc_make.sh.in
@@ -77,6 +77,116 @@ rm "${TEMP}/output.txt"
 
 cat > "${TEMP}/expected-index.html" <<EOF
 
+Listing: Bar - Sep 01, 2016, 12:00 AM GMT
+
+Listing: Foo - Oct 01, 2016, 12:00 AM GMT
+
+
+EOF
+diff -uN "${TEMP}/proj/_build/index.html" "${TEMP}/expected-index.html"
+diff -uN "${TEMP}/proj/_build/page/1/index.html" "${TEMP}/expected-index.html"
+
+cat > "${TEMP}/expected-atom.xml" <<EOF
+<?xml version="1.0" encoding="utf-8"?>
+<feed xmlns="http://www.w3.org/2005/Atom">
+  <title type="text">Lol's Website</title>
+  <id>/atom.xml</id>
+  <updated>2016-09-01T00:00:00Z</updated>
+  <link href="http://example.org/" />
+  <link href="http://example.org/atom.xml" rel="self" />
+  <author>
+    <name>Lol</name>
+    <email>author@example.com</email>
+  </author>
+  <subtitle type="text">WAT?!</subtitle>
+  
+  <entry>
+    <title type="text">Bar</title>
+    <id>/post/bar/</id>
+    <updated>2016-09-01T00:00:00Z</updated>
+    <published>2016-09-01T00:00:00Z</published>
+    <link href="http://example.org/post/bar/" />
+    <author>
+      <name>Lol</name>
+      <email>author@example.com</email>
+    </author>
+    <content type="html"><![CDATA[<p>This is bar.</p>
+]]></content>
+  </entry>
+  
+  <entry>
+    <title type="text">Foo</title>
+    <id>/post/foo/</id>
+    <updated>2016-10-01T00:00:00Z</updated>
+    <published>2016-10-01T00:00:00Z</published>
+    <link href="http://example.org/post/foo/" />
+    <author>
+      <name>Lol</name>
+      <email>author@example.com</email>
+    </author>
+    <content type="html"><![CDATA[<p>This is foo.</p>
+]]></content>
+  </entry>
+  
+</feed>
+EOF
+diff -uN "${TEMP}/proj/_build/atom.xml" "${TEMP}/expected-atom.xml"
+
+cat > "${TEMP}/expected-post-foo.html" <<EOF
+
+
+Foo - Oct 01, 2016, 12:00 AM GMT
+
+<p>This is foo.</p>
+
+
+EOF
+diff -uN "${TEMP}/proj/_build/post/foo/index.html" "${TEMP}/expected-post-foo.html"
+
+cat > "${TEMP}/expected-post-bar.html" <<EOF
+
+
+Bar - Sep 01, 2016, 12:00 AM GMT
+
+<p>This is bar.</p>
+
+
+EOF
+diff -uN "${TEMP}/proj/_build/post/bar/index.html" "${TEMP}/expected-post-bar.html"
+
+rm -rf "${TEMP}/proj/_build"
+
+
+### default settings with some posts, order asc
+
+cat > "${TEMP}/proj/blogcfile" <<EOF
+[global]
+AUTHOR_NAME = Lol
+AUTHOR_EMAIL = author@example.com
+SITE_TITLE = Lol's Website
+SITE_TAGLINE = WAT?!
+BASE_DOMAIN = http://example.org
+
+[settings]
+html_order = ASC
+atom_order = ASC
+
+[posts]
+foo
+bar
+EOF
+
+${TESTS_ENVIRONMENT} @abs_top_builddir@/blogc-make -f "${TEMP}/proj/blogcfile" 2>&1 | tee "${TEMP}/output.txt"
+grep "_build/index\\.html" "${TEMP}/output.txt"
+grep "_build/atom\\.xml" "${TEMP}/output.txt"
+grep "_build/page/1/index\\.html" "${TEMP}/output.txt"
+grep "_build/post/foo/index\\.html" "${TEMP}/output.txt"
+grep "_build/post/bar/index\\.html" "${TEMP}/output.txt"
+
+rm "${TEMP}/output.txt"
+
+cat > "${TEMP}/expected-index.html" <<EOF
+
 Listing: Foo - Oct 01, 2016, 12:00 AM GMT
 
 Listing: Bar - Sep 01, 2016, 12:00 AM GMT
@@ -157,7 +267,7 @@ diff -uN "${TEMP}/proj/_build/post/bar/index.html" "${TEMP}/expected-post-bar.ht
 rm -rf "${TEMP}/proj/_build"
 
 
-### default settings with some posts and tags
+### default settings with some posts and tags, order asc
 
 cat > "${TEMP}/proj/content/post/baz.txt" <<EOF
 TITLE: Baz
@@ -357,7 +467,7 @@ diff -uN "${TEMP}/proj/_build/tag/tag2/index.html" "${TEMP}/expected-tag2.html"
 rm -rf "${TEMP}/proj/_build"
 
 
-### default settings with some posts, pages and tags
+### default settings with some posts, pages and tags, order asc
 
 cat > "${TEMP}/proj/content/page1.txt" <<EOF
 TITLE: Page 1
@@ -478,6 +588,8 @@ atom_prefix = atoom
 atom_ext = /index.xml
 date_format = %b %d, %Y
 locale = en_US.utf8
+html_order = ASC
+atom_order = ASC
 
 [global]
 AUTHOR_NAME = Lol
diff --git a/tests/blogc-make/check_settings.c b/tests/blogc-make/check_settings.c
index 4016e15..6eaaaec 100644
--- a/tests/blogc-make/check_settings.c
+++ b/tests/blogc-make/check_settings.c
@@ -126,7 +126,7 @@ test_settings2(void **state)
     assert_string_equal(bc_trie_lookup(s->global, "SITE_TITLE"), "Fuuuuuuuuu");
     assert_string_equal(bc_trie_lookup(s->global, "SITE_TAGLINE"), "My cool tagline");
     assert_string_equal(bc_trie_lookup(s->global, "BASE_DOMAIN"), "http://example.com");
-    assert_int_equal(bc_trie_size(s->settings), 13);
+    assert_int_equal(bc_trie_size(s->settings), 15);
     assert_string_equal(bc_trie_lookup(s->settings, "source_ext"), ".txt");
     assert_string_equal(bc_trie_lookup(s->settings, "html_ext"), "/index.html");
     assert_string_equal(bc_trie_lookup(s->settings, "content_dir"), "guda");
@@ -141,6 +141,8 @@ test_settings2(void **state)
     assert_string_equal(bc_trie_lookup(s->settings, "pagination_prefix"), "page");
     assert_string_equal(bc_trie_lookup(s->settings, "post_prefix"), "post");
     assert_string_equal(bc_trie_lookup(s->settings, "tag_prefix"), "tag");
+    assert_string_equal(bc_trie_lookup(s->settings, "html_order"), "DESC");
+    assert_string_equal(bc_trie_lookup(s->settings, "atom_order"), "DESC");
     assert_non_null(s->posts);
     assert_string_equal(s->posts[0], "aaaa");
     assert_string_equal(s->posts[1], "bbbb");
@@ -213,7 +215,7 @@ test_settings_env2(void **state)
     assert_string_equal(bc_trie_lookup(s->global, "SITE_TITLE"), "Fuuuuuuuuu");
     assert_string_equal(bc_trie_lookup(s->global, "SITE_TAGLINE"), "My cool tagline");
     assert_string_equal(bc_trie_lookup(s->global, "BASE_DOMAIN"), "http://example.com");
-    assert_int_equal(bc_trie_size(s->settings), 13);
+    assert_int_equal(bc_trie_size(s->settings), 15);
     assert_string_equal(bc_trie_lookup(s->settings, "source_ext"), ".txt");
     assert_string_equal(bc_trie_lookup(s->settings, "html_ext"), "/index.html");
     assert_string_equal(bc_trie_lookup(s->settings, "content_dir"), "guda");
@@ -228,6 +230,8 @@ test_settings_env2(void **state)
     assert_string_equal(bc_trie_lookup(s->settings, "pagination_prefix"), "page");
     assert_string_equal(bc_trie_lookup(s->settings, "post_prefix"), "post");
     assert_string_equal(bc_trie_lookup(s->settings, "tag_prefix"), "tag");
+    assert_string_equal(bc_trie_lookup(s->settings, "html_order"), "DESC");
+    assert_string_equal(bc_trie_lookup(s->settings, "atom_order"), "DESC");
     assert_non_null(s->posts);
     assert_string_equal(s->posts[0], "aaaa");
     assert_string_equal(s->posts[1], "bbbb");
@@ -300,7 +304,7 @@ test_settings_copy_files(void **state)
     assert_string_equal(bc_trie_lookup(s->global, "SITE_TITLE"), "Fuuuuuuuuu");
     assert_string_equal(bc_trie_lookup(s->global, "SITE_TAGLINE"), "My cool tagline");
     assert_string_equal(bc_trie_lookup(s->global, "BASE_DOMAIN"), "http://example.com");
-    assert_int_equal(bc_trie_size(s->settings), 13);
+    assert_int_equal(bc_trie_size(s->settings), 15);
     assert_string_equal(bc_trie_lookup(s->settings, "source_ext"), ".txt");
     assert_string_equal(bc_trie_lookup(s->settings, "html_ext"), "/index.html");
     assert_string_equal(bc_trie_lookup(s->settings, "content_dir"), "guda");
@@ -315,6 +319,8 @@ test_settings_copy_files(void **state)
     assert_string_equal(bc_trie_lookup(s->settings, "pagination_prefix"), "page");
     assert_string_equal(bc_trie_lookup(s->settings, "post_prefix"), "post");
     assert_string_equal(bc_trie_lookup(s->settings, "tag_prefix"), "tag");
+    assert_string_equal(bc_trie_lookup(s->settings, "html_order"), "DESC");
+    assert_string_equal(bc_trie_lookup(s->settings, "atom_order"), "DESC");
     assert_non_null(s->posts);
     assert_string_equal(s->posts[0], "aaaa");
     assert_string_equal(s->posts[1], "bbbb");