git-fetch: move more code into C.

diff --git a/builtin-mailinfo.c b/builtin-mailinfo.c
index b8d7dbc0b71929a95aaebd79d5912897d5eb70e7..583da38b6750185eb38f04d91555aa75ee4a77b0 100644 (file)
--- a/builtin-mailinfo.c
+++ b/builtin-mailinfo.c
@@ -2,17 +2,9 @@
  * Another stupid program, this one parsing the headers of an
  * email to figure out authorship and subject
  */
-#define _GNU_SOURCE
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <ctype.h>
-#ifndef NO_ICONV
-#include <iconv.h>
-#endif
-#include "git-compat-util.h"
 #include "cache.h"
 #include "builtin.h"
+#include "utf8.h"
 
 static FILE *cmitmsg, *patchfile, *fin, *fout;
 
@@ -519,40 +511,15 @@ static int decode_b_segment(char *in, char *ot, char *ep)
 
 static void convert_to_utf8(char *line, char *charset)
 {
-#ifndef NO_ICONV
-       char *in, *out;
-       size_t insize, outsize, nrc;
-       char outbuf[4096]; /* cheat */
        static char latin_one[] = "latin1";
        char *input_charset = *charset ? charset : latin_one;
-       iconv_t conv = iconv_open(metainfo_charset, input_charset);
-
-       if (conv == (iconv_t) -1) {
-               static int warned_latin1_once = 0;
-               if (input_charset != latin_one) {
-                       fprintf(stderr, "cannot convert from %s to %s\n",
-                               input_charset, metainfo_charset);
-                       *charset = 0;
-               }
-               else if (!warned_latin1_once) {
-                       warned_latin1_once = 1;
-                       fprintf(stderr, "tried to convert from %s to %s, "
-                               "but your iconv does not work with it.\n",
-                               input_charset, metainfo_charset);
-               }
-               return;
-       }
-       in = line;
-       insize = strlen(in);
-       out = outbuf;
-       outsize = sizeof(outbuf);
-       nrc = iconv(conv, &in, &insize, &out, &outsize);
-       iconv_close(conv);
-       if (nrc == (size_t) -1)
-               return;
-       *out = 0;
-       strcpy(line, outbuf);
-#endif
+       char *out = reencode_string(line, metainfo_charset, input_charset);
+
+       if (!out)
+               die("cannot convert from %s to %s\n",
+                   input_charset, metainfo_charset);
+       strcpy(line, out);
+       free(out);
 }
 
 static int decode_header_bq(char *it)
@@ -827,16 +794,23 @@ static const char mailinfo_usage[] =
 
 int cmd_mailinfo(int argc, const char **argv, const char *prefix)
 {
+       const char *def_charset;
+
        /* NEEDSWORK: might want to do the optional .git/ directory
         * discovery
         */
        git_config(git_default_config);
 
+       def_charset = (git_commit_encoding ? git_commit_encoding : "utf-8");
+       metainfo_charset = def_charset;
+
        while (1 < argc && argv[1][0] == '-') {
                if (!strcmp(argv[1], "-k"))
                        keep_subject = 1;
                else if (!strcmp(argv[1], "-u"))
-                       metainfo_charset = git_commit_encoding;
+                       metainfo_charset = def_charset;
+               else if (!strcmp(argv[1], "-n"))
+                       metainfo_charset = NULL;
                else if (!strncmp(argv[1], "--encoding=", 11))
                        metainfo_charset = argv[1] + 11;
                else