undef/git-commit-vandalism
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diff-tree: prettify output slightly

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Make the commit explanation buffer larger, and make sure that if
we truncate it, we put a "..." marker there to visually tell people
about the truncation (tested with a much smaller buffer to make
sure it looks sane).

Also make sure that the explanation is properly line-terminated,
and add an extra newline iff we have a diff.
This commit is contained in:
Linus Torvalds 2005-05-21 11:04:19 -07:00
parent da196b603e
commit 3258c902e7
1 changed files with 16 additions and 3 deletions
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19
diff-tree.c
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@ -332,7 +332,7 @@ static int add_author_info(char *buf, const char *line, int len)
static char *generate_header(const char *commit, const char *parent, const char *msg, unsigned long len)
{
static char this_header[1000];
static char this_header[16384];
int offset;
offset = sprintf(this_header, "%s%s (from %s)\n", header_prefix, commit, parent);
@ -345,8 +345,16 @@ static char *generate_header(const char *commit, const char *parent, const char
if (!linelen)
break;
if (offset + linelen + 10 > sizeof(this_header))
/*
* We want some slop for indentation and a possible
* final "...". Thus the "+ 20".
*/
if (offset + linelen + 20 > sizeof(this_header)) {
memcpy(this_header + offset, " ...\n", 8);
offset += 8;
break;
}
msg += linelen;
len -= linelen;
@ -361,7 +369,12 @@ static char *generate_header(const char *commit, const char *parent, const char
memcpy(this_header + offset + 4, line, linelen);
offset += linelen + 4;
}
this_header[offset++] = '\n';
/* Make sure there is an EOLN */
if (this_header[offset-1] != '\n')
this_header[offset++] = '\n';
/* Add _another_ EOLN if we are doing diff output */
if (!silent)
this_header[offset++] = '\n';
this_header[offset] = 0;
}