From defb396ee51c80d2df1c7bbc58dbefd0c6a0b165 Mon Sep 17 00:00:00 2001
From: "Rafael G. Martins" <rafael@rafaelmartins.eng.br>
Date: Thu, 26 Jul 2018 22:23:30 +0200
Subject: make: added atom_dump helper rule

---
 src/blogc-make/atom.c  | 41 +++++++++++++++++++++++++++++------------
 src/blogc-make/atom.h  |  1 +
 src/blogc-make/rules.c | 22 ++++++++++++++++++++++
 3 files changed, 52 insertions(+), 12 deletions(-)

(limited to 'src/blogc-make')

diff --git a/src/blogc-make/atom.c b/src/blogc-make/atom.c
index 9dde35e..207b718 100644
--- a/src/blogc-make/atom.c
+++ b/src/blogc-make/atom.c
@@ -48,20 +48,11 @@ static const char atom_template[] =
 
 
 char*
-bm_atom_deploy(bm_settings_t *settings, bc_error_t **err)
+bm_atom_generate(bm_settings_t *settings)
 {
-    if (settings == NULL || err == NULL || *err != NULL)
+    if (settings == NULL)
         return NULL;
 
-    // this is not really portable
-    char fname[] = "/tmp/blogc-make_XXXXXX";
-    int fd;
-    if (-1 == (fd = mkstemp(fname))) {
-        *err = bc_error_new_printf(BLOGC_MAKE_ERROR_ATOM,
-            "Failed to create temporary atom template: %s", strerror(errno));
-        return NULL;
-    }
-
     const char *atom_prefix = bc_trie_lookup(settings->settings, "atom_prefix");
     const char *atom_ext = bc_trie_lookup(settings->settings, "atom_ext");
     const char *post_prefix = bc_trie_lookup(settings->settings, "post_prefix");
@@ -93,13 +84,39 @@ bm_atom_deploy(bm_settings_t *settings, bc_error_t **err)
         entry_id = bc_strdup(post_url);
     }
 
-    char *content = bc_strdup_printf(atom_template, atom_url->str, atom_url->str,
+    char *rv = bc_strdup_printf(atom_template, atom_url->str, atom_url->str,
         entry_id, post_url);
 
     bc_string_free(atom_url, true);
     free(post_url);
     free(entry_id);
 
+    return rv;
+}
+
+
+char*
+bm_atom_deploy(bm_settings_t *settings, bc_error_t **err)
+{
+    if (settings == NULL || err == NULL || *err != NULL)
+        return NULL;
+
+    // this is not really portable
+    char fname[] = "/tmp/blogc-make_XXXXXX";
+    int fd;
+    if (-1 == (fd = mkstemp(fname))) {
+        *err = bc_error_new_printf(BLOGC_MAKE_ERROR_ATOM,
+            "Failed to create temporary atom template: %s", strerror(errno));
+        return NULL;
+    }
+
+    char *content = bm_atom_generate(settings);
+    if (content == NULL) {
+        close(fd);
+        unlink(fname);
+        return NULL;
+    }
+
     if (-1 == write(fd, content, strlen(content))) {
         *err = bc_error_new_printf(BLOGC_MAKE_ERROR_ATOM,
             "Failed to write to temporary atom template: %s", strerror(errno));
diff --git a/src/blogc-make/atom.h b/src/blogc-make/atom.h
index 9f47adc..ed3875d 100644
--- a/src/blogc-make/atom.h
+++ b/src/blogc-make/atom.h
@@ -12,6 +12,7 @@
 #include "../common/error.h"
 #include "settings.h"
 
+char* bm_atom_generate(bm_settings_t *settings);
 char* bm_atom_deploy(bm_settings_t *settings, bc_error_t **err);
 void bm_atom_destroy(const char *fname);
 
diff --git a/src/blogc-make/rules.c b/src/blogc-make/rules.c
index 9d599cc..d95edd8 100644
--- a/src/blogc-make/rules.c
+++ b/src/blogc-make/rules.c
@@ -13,6 +13,7 @@
 #include <time.h>
 #include <math.h>
 #include "../common/utils.h"
+#include "atom.h"
 #include "ctx.h"
 #include "exec.h"
 #include "exec-native.h"
@@ -626,6 +627,20 @@ watch_exec(bm_ctx_t *ctx, bc_slist_t *outputs, bc_trie_t *args)
 }
 
 
+// ATOM DUMP RULE
+
+static int
+atom_dump_exec(bm_ctx_t *ctx, bc_slist_t *outputs, bc_trie_t *args)
+{
+    char *content = bm_atom_generate(ctx->settings);
+    if (content == NULL)
+        return 3;
+    printf("%s", content);
+    free(content);
+    return 0;
+}
+
+
 const bm_rule_t rules[] = {
     {
         .name = "all",
@@ -713,6 +728,13 @@ const bm_rule_t rules[] = {
         .exec_func = watch_exec,
         .generate_files = false,
     },
+    {
+        .name = "atom_dump",
+        .help = "dump default Atom feed template based on current settings",
+        .outputlist_func = NULL,
+        .exec_func = atom_dump_exec,
+        .generate_files = false,
+    },
     {NULL, NULL, NULL, NULL, false},
 };
 
-- 
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