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Add graphical diffstat to commit view

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The diffstat is calculated against the leftmost parent of the commit. This
gives nice information for "normal" merges while octopus merges are less
than optimal, so the diffstat isn't calculated for those merges.

Signed-off-by: Lars Hjemli <hjemli@gmail.com>
This commit is contained in:
Lars Hjemli 2007-05-13 22:25:14 +02:00
parent c6cf3a424a
commit 8a3685bcf2
5 changed files with 132 additions and 35 deletions
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1
Makefile
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@ -55,6 +55,7 @@ install: all clean-cache
mkdir -p $(prefix)
install cgit $(prefix)/cgit.cgi
install cgit.css $(prefix)/cgit.css
install add.png del.png $(prefix)/
clean-cgit:
rm -f cgit *.o

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30
cgit.css
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@ -26,6 +26,13 @@ h3 {
font-weight: normal;
}
h4 {
margin-top: 1.5em;
margin-bottom: 0.1em;
font-size: 100%;
font-weight: bold;
}
a {
color: blue;
text-decoration: none;
@ -227,6 +234,12 @@ div.commit-msg {
table.diffstat {
border-collapse: collapse;
margin-top: 1.5em;
width: 100%;
border: solid 1px #aaa;
}
table.diffstat tr:hover {
background-color: #eee;
}
table.diffstat th {
@ -238,8 +251,11 @@ table.diffstat th {
}
table.diffstat td {
padding: 0.1em 1em 0.1em 0.1em;
padding: 0.2em 0.2em 0.1em 0.1em;
font-size: 100%;
border: none;
border-top: solid 1px #aaa;
border-bottom: solid 1px #aaa;
}
table.diffstat td span.modechange {
@ -259,7 +275,17 @@ table.diffstat td.upd a {
color: blue;
}
table.diffstat td.summary {
table.diffstat td.graph {
width: 75%;
vertical-align: center;
}
table.diffstat td.graph img {
border: none;
height: 11pt;
}
div.diffstat-summary {
color: #888;
padding-top: 0.5em;
}

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132
ui-commit.c
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@ -8,14 +8,30 @@
#include "cgit.h"
int files = 0;
int files = 0, slots = 0;
int total_adds = 0, total_rems = 0, max_changes = 0;
int lines_added, lines_removed;
void print_filepair(struct diff_filepair *pair)
struct fileinfo {
char status;
unsigned char old_sha1[20];
unsigned char new_sha1[20];
unsigned short old_mode;
unsigned short new_mode;
char *old_path;
char *new_path;
unsigned int added;
unsigned int removed;
} *items;
void print_fileinfo(struct fileinfo *info)
{
char *query;
char *query, *query2;
char *class;
double width;
switch (pair->status) {
switch (info->status) {
case DIFF_STATUS_ADDED:
class = "add";
break;
@ -41,51 +57,98 @@ void print_filepair(struct diff_filepair *pair)
class = "stg";
break;
default:
die("bug: unhandled diff status %c", pair->status);
die("bug: unhandled diff status %c", info->status);
}
html("<tr>");
htmlf("<td class='mode'>");
if (is_null_sha1(pair->two->sha1)) {
html_filemode(pair->one->mode);
if (is_null_sha1(info->new_sha1)) {
html_filemode(info->old_mode);
} else {
html_filemode(pair->two->mode);
html_filemode(info->new_mode);
}
if (pair->one->mode != pair->two->mode &&
!is_null_sha1(pair->one->sha1) &&
!is_null_sha1(pair->two->sha1)) {
if (info->old_mode != info->new_mode &&
!is_null_sha1(info->old_sha1) &&
!is_null_sha1(info->new_sha1)) {
html("<span class='modechange'>[");
html_filemode(pair->one->mode);
html_filemode(info->old_mode);
html("]</span>");
}
htmlf("</td><td class='%s'>", class);
query = fmt("id=%s&id2=%s", sha1_to_hex(pair->one->sha1),
sha1_to_hex(pair->two->sha1));
query = fmt("id=%s&id2=%s", sha1_to_hex(info->old_sha1),
sha1_to_hex(info->new_sha1));
html_link_open(cgit_pageurl(cgit_query_repo, "diff", query),
NULL, NULL);
if (pair->status == DIFF_STATUS_COPIED ||
pair->status == DIFF_STATUS_RENAMED) {
html_txt(pair->two->path);
htmlf("</a> (%s from ", pair->status == DIFF_STATUS_COPIED ?
if (info->status == DIFF_STATUS_COPIED ||
info->status == DIFF_STATUS_RENAMED) {
html_txt(info->new_path);
htmlf("</a> (%s from ", info->status == DIFF_STATUS_COPIED ?
"copied" : "renamed");
query = fmt("id=%s", sha1_to_hex(pair->one->sha1));
html_link_open(cgit_pageurl(cgit_query_repo, "view", query),
query2 = fmt("id=%s", sha1_to_hex(info->old_sha1));
html_link_open(cgit_pageurl(cgit_query_repo, "view", query2),
NULL, NULL);
html_txt(pair->one->path);
html_txt(info->old_path);
html("</a>)");
} else {
html_txt(pair->two->path);
html_txt(info->new_path);
html("</a>");
}
html("<td>");
html("</td><td class='right'>");
htmlf("%d", info->added + info->removed);
//TODO: diffstat graph
html("</td></tr>\n");
files++;
html("</td><td class='graph'>");
width = (info->added + info->removed) * 100.0 / max_changes;
if (width < 0.1)
width = 0.1;
html_link_open(cgit_pageurl(cgit_query_repo, "diff", query),
NULL, NULL);
htmlf("<img src='/cgit/add.png' style='width: %.1f%%;'/>",
info->added * width / (info->added + info->removed));
htmlf("<img src='/cgit/del.png' style='width: %.1f%%;'/>",
info->removed * width / (info->added + info->removed));
html("</a></td></tr>\n");
}
void cgit_count_diff_lines(char *line, int len)
{
if (line && (len > 0)) {
if (line[0] == '+')
lines_added++;
else if (line[0] == '-')
lines_removed++;
}
}
void inspect_filepair(struct diff_filepair *pair)
{
files++;
lines_added = 0;
lines_removed = 0;
cgit_diff_files(pair->one->sha1, pair->two->sha1, cgit_count_diff_lines);
if (files >= slots) {
if (slots == 0)
slots = 4;
else
slots = slots * 2;
items = xrealloc(items, slots * sizeof(struct fileinfo));
}
items[files-1].status = pair->status;
hashcpy(items[files-1].old_sha1, pair->one->sha1);
hashcpy(items[files-1].new_sha1, pair->two->sha1);
items[files-1].old_mode = pair->one->mode;
items[files-1].new_mode = pair->two->mode;
items[files-1].old_path = xstrdup(pair->one->path);
items[files-1].new_path = xstrdup(pair->two->path);
items[files-1].added = lines_added;
items[files-1].removed = lines_removed;
if (lines_added + lines_removed > max_changes)
max_changes = lines_added + lines_removed;
total_adds += lines_added;
total_rems += lines_removed;
}
void cgit_print_commit(const char *hex)
{
struct commit *commit;
@ -94,6 +157,7 @@ void cgit_print_commit(const char *hex)
unsigned char sha1[20];
char *query;
char *filename;
int i;
if (get_sha1(hex, sha1)) {
cgit_print_error(fmt("Bad object id: %s", hex));
@ -148,11 +212,17 @@ void cgit_print_commit(const char *hex)
html("<div class='commit-msg'>");
html_txt(info->msg);
html("</div>");
if (!(commit->parents && commit->parents->next && commit->parents->next->next)) {
html("<table class='diffstat'>");
html("<tr><th colspan='3'>Affected files</tr>\n");
cgit_diff_commit(commit, print_filepair);
htmlf("<tr><td colspan='3' class='summary'>"
"%d file%s changed</td></tr>\n", files, files > 1 ? "s" : "");
max_changes = 0;
cgit_diff_commit(commit, inspect_filepair);
for(i = 0; i<files; i++)
print_fileinfo(&items[i]);
html("</table>");
html("<div class='diffstat-summary'>");
htmlf("%d files changed, %d insertions, %d deletions\n",
files, total_adds, total_rems);
html("</div>");
}
cgit_free_commitinfo(info);
}