make: added `MAKE_POST` var to `posts` and `pages` rules

This variable will have the same string that was inserted in tbe
`blogcfile` when listing posts and pages, and is useful to highlight
active menu items, for example.

5 files changed, 49 insertions, 34 deletions

diff --git a/src/blogc-make/ctx.c b/src/blogc-make/ctx.c
index 74932c9..8e152da 100644
--- a/src/blogc-make/ctx.c
+++ b/src/blogc-make/ctx.c
@@ -24,7 +24,8 @@
 
 
 bm_filectx_t*
-bm_filectx_new(bm_ctx_t *ctx, const char *filename, struct stat *st)
+bm_filectx_new(bm_ctx_t *ctx, const char *filename, const char *slug,
+    struct stat *st)
 {
     if (ctx == NULL || filename == NULL)
         return NULL;
@@ -35,6 +36,7 @@ bm_filectx_new(bm_ctx_t *ctx, const char *filename, struct stat *st)
     bm_filectx_t *rv = bc_malloc(sizeof(bm_filectx_t));
     rv->path = f;
     rv->short_path = bc_strdup(filename);
+    rv->slug = bc_strdup(slug);
 
     if (st == NULL) {
         struct stat buf;
@@ -93,7 +95,7 @@ bm_filectx_new_r(bc_slist_t *l, bm_ctx_t *ctx, const char *filename)
         return l;
     }
 
-    l = bc_slist_append(l, bm_filectx_new(ctx, filename, &buf));
+    l = bc_slist_append(l, bm_filectx_new(ctx, filename, NULL, &buf));
     free(f);
     return l;
 }
@@ -155,6 +157,7 @@ bm_filectx_free(bm_filectx_t *fctx)
         return;
     free(fctx->path);
     free(fctx->short_path);
+    free(fctx->slug);
     free(fctx);
 }
 
@@ -200,7 +203,7 @@ bm_ctx_new(bm_ctx_t *base, const char *settings_file, const char *argv0,
     rv->settings = settings;
 
     char *real_filename = realpath(settings_file, NULL);
-    rv->settings_fctx = bm_filectx_new(rv, real_filename, NULL);
+    rv->settings_fctx = bm_filectx_new(rv, real_filename, NULL, NULL);
     rv->root_dir = realpath(dirname(real_filename), NULL);
     free(real_filename);
 
@@ -222,10 +225,10 @@ bm_ctx_new(bm_ctx_t *base, const char *settings_file, const char *argv0,
 
     char *main_template = bc_strdup_printf("%s/%s", template_dir,
         bc_trie_lookup(settings->settings, "main_template"));
-    rv->main_template_fctx = bm_filectx_new(rv, main_template, NULL);
+    rv->main_template_fctx = bm_filectx_new(rv, main_template, NULL, NULL);
     free(main_template);
 
-    rv->atom_template_fctx = bm_filectx_new(rv, atom_template, NULL);
+    rv->atom_template_fctx = bm_filectx_new(rv, atom_template, NULL, NULL);
     free(atom_template);
 
     const char *content_dir = bc_trie_lookup(settings->settings, "content_dir");
@@ -238,7 +241,7 @@ bm_ctx_new(bm_ctx_t *base, const char *settings_file, const char *argv0,
             char *f = bc_strdup_printf("%s/%s/%s%s", content_dir, post_prefix,
                 settings->posts[i], source_ext);
             rv->posts_fctx = bc_slist_append(rv->posts_fctx,
-                bm_filectx_new(rv, f, NULL));
+                bm_filectx_new(rv, f, settings->posts[i], NULL));
             free(f);
         }
     }
@@ -249,7 +252,7 @@ bm_ctx_new(bm_ctx_t *base, const char *settings_file, const char *argv0,
             char *f = bc_strdup_printf("%s/%s%s", content_dir,
                 settings->pages[i], source_ext);
             rv->pages_fctx = bc_slist_append(rv->pages_fctx,
-                bm_filectx_new(rv, f, NULL));
+                bm_filectx_new(rv, f, settings->pages[i], NULL));
             free(f);
         }
     }
diff --git a/src/blogc-make/ctx.h b/src/blogc-make/ctx.h
index 3f70ead..294e0d3 100644
--- a/src/blogc-make/ctx.h
+++ b/src/blogc-make/ctx.h
@@ -37,6 +37,7 @@
 typedef struct {
     char *path;
     char *short_path;
+    char *slug;
     time_t tv_sec;
     long tv_nsec;
     bool readable;
@@ -64,7 +65,8 @@ typedef struct {
     bc_slist_t *copy_fctx;
 } bm_ctx_t;
 
-bm_filectx_t* bm_filectx_new(bm_ctx_t *ctx, const char *filename, struct stat *st);
+bm_filectx_t* bm_filectx_new(bm_ctx_t *ctx, const char *filename, const char *slug,
+    struct stat *st);
 bc_slist_t* bm_filectx_new_r(bc_slist_t *l, bm_ctx_t *ctx, const char *filename);
 bool bm_filectx_changed(bm_filectx_t *ctx, time_t *tv_sec, long *tv_nsec);
 void bm_filectx_reload(bm_filectx_t *ctx);
diff --git a/src/blogc-make/exec.c b/src/blogc-make/exec.c
index a324d47..d246df9 100644
--- a/src/blogc-make/exec.c
+++ b/src/blogc-make/exec.c
@@ -217,8 +217,8 @@ list_variables(const char *key, const char *value, bc_string_t *str)
 
 char*
 bm_exec_build_blogc_cmd(const char *blogc_bin, bm_settings_t *settings,
-    bc_trie_t *variables, bool listing, const char *template,
-    const char *output, bool dev, bool sources_stdin)
+    bc_trie_t *global_variables, bc_trie_t *local_variables, bool listing,
+    const char *template, const char *output, bool dev, bool sources_stdin)
 {
     bc_string_t *rv = bc_string_new();
 
@@ -245,7 +245,8 @@ bm_exec_build_blogc_cmd(const char *blogc_bin, bm_settings_t *settings,
             (bc_trie_foreach_func_t) list_variables, rv);
     }
 
-    bc_trie_foreach(variables, (bc_trie_foreach_func_t) list_variables, rv);
+    bc_trie_foreach(global_variables, (bc_trie_foreach_func_t) list_variables, rv);
+    bc_trie_foreach(local_variables, (bc_trie_foreach_func_t) list_variables, rv);
 
     if (dev) {
         bc_string_append(rv, " -D MAKE_ENV_DEV=1 -D MAKE_ENV='dev'");
@@ -276,8 +277,8 @@ bm_exec_build_blogc_cmd(const char *blogc_bin, bm_settings_t *settings,
 
 
 int
-bm_exec_blogc(bm_ctx_t *ctx, bc_trie_t *variables, bool listing,
-    bm_filectx_t *template, bm_filectx_t *output, bc_slist_t *sources,
+bm_exec_blogc(bm_ctx_t *ctx, bc_trie_t *global_variables, bc_trie_t *local_variables,
+    bool listing, bm_filectx_t *template, bm_filectx_t *output, bc_slist_t *sources,
     bool only_first_source)
 {
     if (ctx == NULL)
@@ -290,8 +291,9 @@ bm_exec_blogc(bm_ctx_t *ctx, bc_trie_t *variables, bool listing,
             break;
     }
 
-    char *cmd = bm_exec_build_blogc_cmd(ctx->blogc, ctx->settings, variables,
-        listing, template->path, output->path, ctx->dev, input->len > 0);
+    char *cmd = bm_exec_build_blogc_cmd(ctx->blogc, ctx->settings, global_variables,
+        local_variables, listing, template->path, output->path, ctx->dev,
+        input->len > 0);
 
     if (ctx->verbose)
         printf("%s\n", cmd);
diff --git a/src/blogc-make/exec.h b/src/blogc-make/exec.h
index 715c903..85f2a44 100644
--- a/src/blogc-make/exec.h
+++ b/src/blogc-make/exec.h
@@ -19,10 +19,10 @@ char* bm_exec_find_binary(const char *argv0, const char *bin, const char *env);
 int bm_exec_command(const char *cmd, const char *input, char **output,
     char **error, bc_error_t **err);
 char* bm_exec_build_blogc_cmd(const char *blogc_bin, bm_settings_t *settings,
-    bc_trie_t *variables, bool listing, const char *template,
-    const char *output, bool dev, bool sources_stdin);
-int bm_exec_blogc(bm_ctx_t *ctx, bc_trie_t *variables, bool listing,
-    bm_filectx_t *template, bm_filectx_t *output, bc_slist_t *sources,
+    bc_trie_t *global_variables, bc_trie_t *local_variables, bool listing,
+    const char *template, const char *output, bool dev, bool sources_stdin);
+int bm_exec_blogc(bm_ctx_t *ctx, bc_trie_t *global_variables, bc_trie_t *local_variables,
+    bool listing, bm_filectx_t *template, bm_filectx_t *output, bc_slist_t *sources,
     bool only_first_source);
 int bm_exec_blogc_runserver(bm_ctx_t *ctx, const char *host, const char *port,
     const char *threads);
diff --git a/src/blogc-make/rules.c b/src/blogc-make/rules.c
index 8a0558b..d8614b6 100644
--- a/src/blogc-make/rules.c
+++ b/src/blogc-make/rules.c
@@ -52,7 +52,7 @@ index_outputlist(bm_ctx_t *ctx)
     char *f = bc_strdup_printf("%s%s%s%s", ctx->short_output_dir,
         is_index ? "" : "/", is_index ? "" : index_prefix,
         html_ext);
-    rv = bc_slist_append(rv, bm_filectx_new(ctx, f, NULL));
+    rv = bc_slist_append(rv, bm_filectx_new(ctx, f, NULL, NULL));
     free(f);
     return rv;
 }
@@ -82,7 +82,7 @@ index_exec(bm_ctx_t *ctx, bc_slist_t *outputs, bc_trie_t *args)
         if (bm_rule_need_rebuild(ctx->posts_fctx, ctx->settings_fctx,
                 ctx->main_template_fctx, fctx, false))
         {
-            rv = bm_exec_blogc(ctx, variables, true, ctx->main_template_fctx,
+            rv = bm_exec_blogc(ctx, variables, NULL, true, ctx->main_template_fctx,
                 fctx, ctx->posts_fctx, false);
             if (rv != 0)
                 break;
@@ -109,7 +109,7 @@ atom_outputlist(bm_ctx_t *ctx)
     const char *atom_ext = bc_trie_lookup(ctx->settings->settings, "atom_ext");
     char *f = bc_strdup_printf("%s/%s%s", ctx->short_output_dir,
         atom_prefix, atom_ext);
-    rv = bc_slist_append(rv, bm_filectx_new(ctx, f, NULL));
+    rv = bc_slist_append(rv, bm_filectx_new(ctx, f, NULL, NULL));
     free(f);
     return rv;
 }
@@ -139,7 +139,7 @@ atom_exec(bm_ctx_t *ctx, bc_slist_t *outputs, bc_trie_t *args)
         if (bm_rule_need_rebuild(ctx->posts_fctx, ctx->settings_fctx, NULL,
                 fctx, false))
         {
-            rv = bm_exec_blogc(ctx, variables, true, ctx->atom_template_fctx,
+            rv = bm_exec_blogc(ctx, variables, NULL, true, ctx->atom_template_fctx,
                 fctx, ctx->posts_fctx, false);
             if (rv != 0)
                 break;
@@ -167,7 +167,7 @@ atom_tags_outputlist(bm_ctx_t *ctx)
     for (size_t i = 0; ctx->settings->tags[i] != NULL; i++) {
         char *f = bc_strdup_printf("%s/%s/%s%s", ctx->short_output_dir,
             atom_prefix, ctx->settings->tags[i], atom_ext);
-        rv = bc_slist_append(rv, bm_filectx_new(ctx, f, NULL));
+        rv = bc_slist_append(rv, bm_filectx_new(ctx, f, NULL, NULL));
         free(f);
     }
     return rv;
@@ -203,7 +203,7 @@ atom_tags_exec(bm_ctx_t *ctx, bc_slist_t *outputs, bc_trie_t *args)
         if (bm_rule_need_rebuild(ctx->posts_fctx, ctx->settings_fctx, NULL,
                 fctx, false))
         {
-            rv = bm_exec_blogc(ctx, variables, true, ctx->atom_template_fctx,
+            rv = bm_exec_blogc(ctx, variables, NULL, true, ctx->atom_template_fctx,
                 fctx, ctx->posts_fctx, false);
             if (rv != 0)
                 break;
@@ -239,7 +239,7 @@ pagination_outputlist(bm_ctx_t *ctx)
     for (size_t i = 0; i < pages; i++) {
         char *f = bc_strdup_printf("%s/%s/%d%s", ctx->short_output_dir,
             pagination_prefix, i + 1, html_ext);
-        rv = bc_slist_append(rv, bm_filectx_new(ctx, f, NULL));
+        rv = bc_slist_append(rv, bm_filectx_new(ctx, f, NULL, NULL));
         free(f);
     }
     return rv;
@@ -271,7 +271,7 @@ pagination_exec(bm_ctx_t *ctx, bc_slist_t *outputs, bc_trie_t *args)
         if (bm_rule_need_rebuild(ctx->posts_fctx, ctx->settings_fctx,
                 ctx->main_template_fctx, fctx, false))
         {
-            rv = bm_exec_blogc(ctx, variables, true, ctx->main_template_fctx,
+            rv = bm_exec_blogc(ctx, variables, NULL, true, ctx->main_template_fctx,
                 fctx, ctx->posts_fctx, false);
             if (rv != 0)
                 break;
@@ -301,7 +301,7 @@ posts_outputlist(bm_ctx_t *ctx)
     for (size_t i = 0; ctx->settings->posts[i] != NULL; i++) {
         char *f = bc_strdup_printf("%s/%s/%s%s", ctx->short_output_dir,
             post_prefix, ctx->settings->posts[i], html_ext);
-        rv = bc_slist_append(rv, bm_filectx_new(ctx, f, NULL));
+        rv = bc_slist_append(rv, bm_filectx_new(ctx, f, NULL, NULL));
         free(f);
     }
     return rv;
@@ -328,14 +328,18 @@ posts_exec(bm_ctx_t *ctx, bc_slist_t *outputs, bc_trie_t *args)
     for (s = ctx->posts_fctx, o = outputs; s != NULL && o != NULL;
             s = s->next, o = o->next)
     {
+        bm_filectx_t *s_fctx = s->data;
         bm_filectx_t *o_fctx = o->data;
         if (o_fctx == NULL)
             continue;
         if (bm_rule_need_rebuild(s, ctx->settings_fctx,
                 ctx->main_template_fctx, o_fctx, true))
         {
-            rv = bm_exec_blogc(ctx, variables, false, ctx->main_template_fctx,
+            bc_trie_t *local = bc_trie_new(NULL);
+            bc_trie_insert(local, "MAKE_SLUG", s_fctx->slug);  // no need to copy
+            rv = bm_exec_blogc(ctx, variables, local, false, ctx->main_template_fctx,
                 o_fctx, s, true);
+            bc_trie_free(local);
             if (rv != 0)
                 break;
         }
@@ -362,7 +366,7 @@ tags_outputlist(bm_ctx_t *ctx)
     for (size_t i = 0; ctx->settings->tags[i] != NULL; i++) {
         char *f = bc_strdup_printf("%s/%s/%s%s", ctx->short_output_dir,
             tag_prefix, ctx->settings->tags[i], html_ext);
-        rv = bc_slist_append(rv, bm_filectx_new(ctx, f, NULL));
+        rv = bc_slist_append(rv, bm_filectx_new(ctx, f, NULL, NULL));
         free(f);
     }
     return rv;
@@ -399,7 +403,7 @@ tags_exec(bm_ctx_t *ctx, bc_slist_t *outputs, bc_trie_t *args)
         if (bm_rule_need_rebuild(ctx->posts_fctx, ctx->settings_fctx,
                 ctx->main_template_fctx, fctx, false))
         {
-            rv = bm_exec_blogc(ctx, variables, true, ctx->main_template_fctx,
+            rv = bm_exec_blogc(ctx, variables, NULL, true, ctx->main_template_fctx,
                 fctx, ctx->posts_fctx, false);
             if (rv != 0)
                 break;
@@ -429,7 +433,7 @@ pages_outputlist(bm_ctx_t *ctx)
         char *f = bc_strdup_printf("%s%s%s%s", ctx->short_output_dir,
             is_index ? "" : "/", is_index ? "" : ctx->settings->pages[i],
             html_ext);
-        rv = bc_slist_append(rv, bm_filectx_new(ctx, f, NULL));
+        rv = bc_slist_append(rv, bm_filectx_new(ctx, f, NULL, NULL));
         free(f);
     }
     return rv;
@@ -454,14 +458,18 @@ pages_exec(bm_ctx_t *ctx, bc_slist_t *outputs, bc_trie_t *args)
     for (s = ctx->pages_fctx, o = outputs; s != NULL && o != NULL;
             s = s->next, o = o->next)
     {
+        bm_filectx_t *s_fctx = s->data;
         bm_filectx_t *o_fctx = o->data;
         if (o_fctx == NULL)
             continue;
         if (bm_rule_need_rebuild(s, ctx->settings_fctx,
                 ctx->main_template_fctx, o_fctx, true))
         {
-            rv = bm_exec_blogc(ctx, variables, false, ctx->main_template_fctx,
+            bc_trie_t *local = bc_trie_new(NULL);
+            bc_trie_insert(local, "MAKE_SLUG", s_fctx->slug); // no need to copy
+            rv = bm_exec_blogc(ctx, variables, local, false, ctx->main_template_fctx,
                 o_fctx, s, true);
+            bc_trie_free(local);
             if (rv != 0)
                 break;
         }
@@ -487,7 +495,7 @@ copy_outputlist(bm_ctx_t *ctx)
     for (bc_slist_t *s = ctx->copy_fctx; s != NULL; s = s->next) {
         char *f = bc_strdup_printf("%s/%s", ctx->short_output_dir,
             ((bm_filectx_t*) s->data)->short_path);
-        rv = bc_slist_append(rv, bm_filectx_new(ctx, f, NULL));
+        rv = bc_slist_append(rv, bm_filectx_new(ctx, f, NULL, NULL));
         free(f);
     }
     return rv;