stamail

commit 326216d12d44a5b3ebc480d8cb20ac3708094eee
parent cd8d754cc036718b092b4aaf899852a8ee41e649
Author: Nathaniel Chappelle <nathaniel@chappelle.dev>
Date:   Thu, 29 Jan 2026 10:37:18 -0800

it renders threads, but weird bug generating extra (empty) messages

Diffstat:
M
stamail.c
 | 
105
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-

1 file changed, 104 insertions(+), 1 deletion(-)
diff --git a/stamail.c b/stamail.c
@@ -358,6 +358,102 @@ static int write_message(const char *output_dir, struct message *m) {
     return 0;
 }
 
+static void render_thread_ascii(FILE *fp,
+                                struct thread_node *n,
+                                const char *prefix,
+                                int is_last)
+{
+    char next_prefix[1024];
+
+    /* branch marker */
+    fprintf(fp, "%s%s ", prefix, is_last ? "\\-" : "+-");
+
+    /* link to message */
+    unsigned long hash =
+        hash_msgid(n->msg->id, n->msg->id_len);
+
+    fprintf(fp, "<a href=\"msg-%08lx.html\">", hash);
+    fprinthtml(fp,
+               n->msg->subject,
+               n->msg->subject_len);
+    fprintf(fp, "</a>\n");
+
+    /* extend prefix */
+    snprintf(next_prefix, sizeof(next_prefix),
+             "%s%s ",
+             prefix,
+             is_last ? "  " : "| ");
+
+    /* walk children */
+    struct thread_node *c = n->child;
+    while (c) {
+        render_thread_ascii(fp,
+                            c,
+                            next_prefix,
+                            c->sibling == NULL);
+        c = c->sibling;
+    }
+}
+
+static int write_threads(const char *output_dir,
+                          const char *archive_name,
+                          struct thread_node **threads,
+                          int num_threads)
+{
+    FILE *fp;
+    char path[1024];
+
+    snprintf(path, sizeof(path), "%s/threads.html", output_dir);
+    fp = fopen(path, "w");
+    if (!fp) {
+        perror(path);
+        return -1;
+    }
+
+    writeheader(fp, archive_name);
+
+    fprintf(fp, "<h1>%s — Threads</h1>\n", archive_name);
+    fprintf(fp, "<nav>\n");
+    fprintf(fp, "<a href=\"index.html\">Messages</a> | ");
+    fprintf(fp, "<a href=\"threads.html\">Threads</a>\n");
+    fprintf(fp, "</nav>\n");
+
+    fprintf(fp,
+        "<pre style=\"font-family: monospace;"
+        "white-space: pre; line-height: 1.3;\">\n");
+
+    for (int i = 0; i < num_threads; i++) {
+        struct thread_node *r = *threads++;
+
+        /* root line (no prefix) */
+        unsigned long hash =
+            hash_msgid(r->msg->id, r->msg->id_len);
+
+        fprintf(fp, "<a href=\"msg-%08lx.html\">", hash);
+        fprinthtml(fp,
+                   r->msg->subject,
+                   r->msg->subject_len);
+        fprintf(fp, "</a>\n");
+
+        /* children */
+        struct thread_node *c = r->child;
+        while (c) {
+            render_thread_ascii(fp,
+                                c,
+                                "",
+                                c->sibling == NULL);
+            c = c->sibling;
+        }
+
+        fprintf(fp, "\n");
+    }
+
+    fprintf(fp, "</pre>\n");
+    writefooter(fp);
+    fclose(fp);
+    return 0;
+}
+
 int main(int argc, char *argv[]) {
     /* CONFIG */
     const char *output_dir = "./output";
@@ -496,7 +592,14 @@ int main(int argc, char *argv[]) {
         print_threads(threads, num_threads);
     }
 
-
+    if (threads) {
+        if (write_threads(output_dir,
+                          archive_name,
+                          threads,
+                          num_threads) != 0) {
+            fprintf(stderr, "Failed to write threads.html\n");
+        }
+    }
 
     free(buf);
     struct message_node *n = head;