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i18n: drop "encoding" header in the output after re-coding. 

After re-coding the commit message into the encoding the user
specified (either with core.logoutputencidng or --encoding
option), this drops the "encoding" header altogether.  The
output is after re-coding as the user asked (either with the
config or --encoding=<encoding> option), and the extra header
becomes redundant information.

Signed-off-by: Junio C Hamano <junkio@cox.net>
maint
Junio C Hamano 2006-12-30 15:49:32 -08:00
parent 677cfed56a
commit 53af9816bc
1 changed files with 45 additions and 0 deletions
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45
commit.c
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@ -624,6 +624,48 @@ static char *get_header(const struct commit *commit, const char *key)
}
}

static char *replace_encoding_header(char *buf, char *encoding)
{
char *encoding_header = strstr(buf, "\nencoding ");
char *end_of_encoding_header;
int encoding_header_pos;
int encoding_header_len;
int new_len;
int need_len;
int buflen = strlen(buf) + 1;

if (!encoding_header)
return buf; /* should not happen but be defensive */
encoding_header++;
end_of_encoding_header = strchr(encoding_header, '\n');
if (!end_of_encoding_header)
return buf; /* should not happen but be defensive */
end_of_encoding_header++;

encoding_header_len = end_of_encoding_header - encoding_header;
encoding_header_pos = encoding_header - buf;

if (is_encoding_utf8(encoding)) {
/* we have re-coded to UTF-8; drop the header */
memmove(encoding_header, end_of_encoding_header,
buflen - (encoding_header_pos + encoding_header_len));
return buf;
}
new_len = strlen(encoding);
need_len = new_len + strlen("encoding \n");
if (encoding_header_len < need_len) {
buf = xrealloc(buf, buflen + (need_len - encoding_header_len));
encoding_header = buf + encoding_header_pos;
end_of_encoding_header = encoding_header + encoding_header_len;
}
memmove(end_of_encoding_header + (need_len - encoding_header_len),
end_of_encoding_header,
buflen - (encoding_header_pos + encoding_header_len));
memcpy(encoding_header + 9, encoding, strlen(encoding));
encoding_header[9 + new_len] = '\n';
return buf;
}

static char *logmsg_reencode(const struct commit *commit)
{
char *encoding;
@ -642,6 +684,9 @@ static char *logmsg_reencode(const struct commit *commit)
return NULL;
}
out = reencode_string(commit->buffer, output_encoding, encoding);
if (out)
out = replace_encoding_header(out, output_encoding);

free(encoding);
if (!out)
return NULL;