[Bug-wget] [PATCH] Print expected total download size in spider mode

[Rohit Mathulla]

Hi, 

I'd sent a similar patch about a year back which seems to have got lost in the 
ether. 

Anyway, as the subject says this patch prints out the total expected download 
size when using the --spider option. 
Its useful when you have a list of links to download but don't know the size of 
the downloads.

Please let me know if any changes need to be done.

Thanks,
Rohit 

---
 src/http.c | 1 +
 src/http.h | 1 +
 src/main.c | 8 ++++++++
 3 files changed, 10 insertions(+)

diff --git a/src/http.c b/src/http.c
index bc2cfd0..edb5af5 100644
--- a/src/http.c
+++ b/src/http.c
@@ -2866,6 +2866,7 @@ read_header:
           if (contlen != -1)
             {
               logputs (LOG_VERBOSE, number_to_static_string (contlen + 
contrange));
+              total_download_size += contlen;
               if (contlen + contrange >= 1024)
                 logprintf (LOG_VERBOSE, " (%s)",
                            human_readable (contlen + contrange, 10, 1));
diff --git a/src/http.h b/src/http.h
index 21f1ed5..4b83f16 100644
--- a/src/http.h
+++ b/src/http.h
@@ -44,6 +44,7 @@ typedef struct {
   const char *b, *e;
 } param_token;
 bool extract_param (const char **, param_token *, param_token *, char, bool *);
+SUM_SIZE_INT total_download_size;
 
 
 #endif /* HTTP_H */
diff --git a/src/main.c b/src/main.c
index 7675455..cba5aa5 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1025,6 +1025,7 @@ main (int argc, char **argv)
   double start_time = ptimer_measure (timer);
 
   total_downloaded_bytes = 0;
+  total_download_size = 0;
   program_name = argv[0];
 
   i18n_initialize ();
@@ -1749,6 +1750,13 @@ outputting to a regular file.\n"));
                    human_readable (opt.quota, 10, 1));
     }
 
+  /* Print size when --spider is passed except when spidering websites */
+  if (opt.spider && total_downloaded_bytes == 0)
+    logprintf (LOG_NOTQUIET, 
+               _("Total expected download size: %s\n"), 
+               total_download_size > 0 ? human_readable (total_download_size, 
10, 1)
+               : "unspecified");
+
   if (opt.cookies_output)
     save_cookies ();
 
-- 
2.3.0