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-rw-r--r--Makefile1
-rw-r--r--cgit.c5
-rw-r--r--cgit.css99
-rw-r--r--cgit.h2
-rw-r--r--cgitrc.5.txt4
-rw-r--r--ui-commit.c11
-rw-r--r--ui-diff.c62
-rw-r--r--ui-log.c4
-rw-r--r--ui-refs.c2
-rw-r--r--ui-shared.c34
-rw-r--r--ui-shared.h5
-rw-r--r--ui-ssdiff.c369
-rw-r--r--ui-ssdiff.h13
13 files changed, 586 insertions, 25 deletions
diff --git a/Makefile b/Makefile
index 4e101d3..f8a4d47 100644
--- a/Makefile
+++ b/Makefile
@@ -93,6 +93,7 @@ OBJECTS += ui-refs.o
OBJECTS += ui-repolist.o
OBJECTS += ui-shared.o
OBJECTS += ui-snapshot.o
+OBJECTS += ui-ssdiff.o
OBJECTS += ui-stats.o
OBJECTS += ui-summary.o
OBJECTS += ui-tag.o
diff --git a/cgit.c b/cgit.c
index 08cb5d2..4f68a4b 100644
--- a/cgit.c
+++ b/cgit.c
@@ -184,6 +184,8 @@ void config_cb(const char *name, const char *value)
ctx.cfg.summary_branches = atoi(value);
else if (!strcmp(name, "summary-tags"))
ctx.cfg.summary_tags = atoi(value);
+ else if (!strcmp(name, "side-by-side-diffs"))
+ ctx.cfg.ssdiff = atoi(value);
else if (!strcmp(name, "agefile"))
ctx.cfg.agefile = xstrdup(value);
else if (!strcmp(name, "renamelimit"))
@@ -242,6 +244,8 @@ static void querystring_cb(const char *name, const char *value)
ctx.qry.showmsg = atoi(value);
} else if (!strcmp(name, "period")) {
ctx.qry.period = xstrdup(value);
+ } else if (!strcmp(name, "ss")) {
+ ctx.qry.ssdiff = atoi(value);
}
}
@@ -284,6 +288,7 @@ static void prepare_context(struct cgit_context *ctx)
ctx->cfg.summary_branches = 10;
ctx->cfg.summary_log = 10;
ctx->cfg.summary_tags = 10;
+ ctx->cfg.ssdiff = 0;
ctx->env.cgit_config = xstrdupn(getenv("CGIT_CONFIG"));
ctx->env.http_host = xstrdupn(getenv("HTTP_HOST"));
ctx->env.https = xstrdupn(getenv("HTTPS"));
diff --git a/cgit.css b/cgit.css
index ef7d3c1..0cb894a 100644
--- a/cgit.css
+++ b/cgit.css
@@ -606,3 +606,102 @@ table.hgraph div.bar {
background-color: #eee;
height: 1em;
}
+
+table.ssdiff {
+ width: 100%;
+}
+
+table.ssdiff td {
+ font-size: 75%;
+ font-family: monospace;
+ white-space: pre;
+ padding: 1px 4px 1px 4px;
+ border-left: solid 1px #aaa;
+ border-right: solid 1px #aaa;
+}
+
+table.ssdiff td.add {
+ color: black;
+ background: #cfc;
+ min-width: 50%;
+}
+
+table.ssdiff td.add_dark {
+ color: black;
+ background: #aca;
+ min-width: 50%;
+}
+
+table.ssdiff span.add {
+ background: #cfc;
+ font-weight: bold;
+}
+
+table.ssdiff td.del {
+ color: black;
+ background: #fcc;
+ min-width: 50%;
+}
+
+table.ssdiff td.del_dark {
+ color: black;
+ background: #caa;
+ min-width: 50%;
+}
+
+table.ssdiff span.del {
+ background: #fcc;
+ font-weight: bold;
+}
+
+table.ssdiff td.changed {
+ color: black;
+ background: #ffc;
+ min-width: 50%;
+}
+
+table.ssdiff td.changed_dark {
+ color: black;
+ background: #cca;
+ min-width: 50%;
+}
+
+table.ssdiff td.lineno {
+ color: black;
+ background: #eee;
+ text-align: right;
+ width: 3em;
+ min-width: 3em;
+}
+
+table.ssdiff td.hunk {
+ color: #black;
+ background: #ccf;
+ border-top: solid 1px #aaa;
+ border-bottom: solid 1px #aaa;
+}
+
+table.ssdiff td.head {
+ border-top: solid 1px #aaa;
+ border-bottom: solid 1px #aaa;
+}
+
+table.ssdiff td.head div.head {
+ font-weight: bold;
+ color: black;
+}
+
+table.ssdiff td.foot {
+ border-top: solid 1px #aaa;
+ border-left: none;
+ border-right: none;
+ border-bottom: none;
+}
+
+table.ssdiff td.space {
+ border: none;
+}
+
+table.ssdiff td.space div {
+ min-height: 3em;
+} \ No newline at end of file
diff --git a/cgit.h b/cgit.h
index 39853df..5941ec0 100644
--- a/cgit.h
+++ b/cgit.h
@@ -143,6 +143,7 @@ struct cgit_query {
int nohead;
char *sort;
int showmsg;
+ int ssdiff;
};
struct cgit_config {
@@ -195,6 +196,7 @@ struct cgit_config {
int summary_branches;
int summary_log;
int summary_tags;
+ int ssdiff;
struct string_list mimetypes;
struct cgit_filter *about_filter;
struct cgit_filter *commit_filter;
diff --git a/cgitrc.5.txt b/cgitrc.5.txt
index e69140b..70e4c78 100644
--- a/cgitrc.5.txt
+++ b/cgitrc.5.txt
@@ -245,6 +245,10 @@ section::
after this option will inherit the current section name. Default value:
none.
+side-by-side-diffs::
+ If set to "1" shows side-by-side diffs instead of unidiffs per
+ default. Default value: "0".
+
snapshots::
Text which specifies the default set of snapshot formats generated by
cgit. The value is a space-separated list of zero or more of the
diff --git a/ui-commit.c b/ui-commit.c
index f5b0ae5..b5e3c01 100644
--- a/ui-commit.c
+++ b/ui-commit.c
@@ -58,9 +58,14 @@ void cgit_print_commit(char *hex)
html("</td></tr>\n");
html("<tr><th>commit</th><td colspan='2' class='sha1'>");
tmp = sha1_to_hex(commit->object.sha1);
- cgit_commit_link(tmp, NULL, NULL, ctx.qry.head, tmp);
+ cgit_commit_link(tmp, NULL, NULL, ctx.qry.head, tmp, 0);
html(" (");
cgit_patch_link("patch", NULL, NULL, NULL, tmp);
+ html(") (");
+ if ((ctx.qry.ssdiff && !ctx.cfg.ssdiff) || (!ctx.qry.ssdiff && ctx.cfg.ssdiff))
+ cgit_commit_link("unidiff", NULL, NULL, ctx.qry.head, tmp, 1);
+ else
+ cgit_commit_link("side-by-side diff", NULL, NULL, ctx.qry.head, tmp, 1);
html(")</td></tr>\n");
html("<tr><th>tree</th><td colspan='2' class='sha1'>");
tmp = xstrdup(hex);
@@ -78,10 +83,10 @@ void cgit_print_commit(char *hex)
html("<tr><th>parent</th>"
"<td colspan='2' class='sha1'>");
cgit_commit_link(sha1_to_hex(p->item->object.sha1), NULL, NULL,
- ctx.qry.head, sha1_to_hex(p->item->object.sha1));
+ ctx.qry.head, sha1_to_hex(p->item->object.sha1), 0);
html(" (");
cgit_diff_link("diff", NULL, NULL, ctx.qry.head, hex,
- sha1_to_hex(p->item->object.sha1), NULL);
+ sha1_to_hex(p->item->object.sha1), NULL, 0);
html(")</td></tr>");
parents++;
}
diff --git a/ui-diff.c b/ui-diff.c
index 2196745..a92a768 100644
--- a/ui-diff.c
+++ b/ui-diff.c
@@ -9,6 +9,7 @@
#include "cgit.h"
#include "html.h"
#include "ui-shared.h"
+#include "ui-ssdiff.h"
unsigned char old_rev_sha1[20];
unsigned char new_rev_sha1[20];
@@ -32,6 +33,7 @@ static struct fileinfo {
int binary:1;
} *items;
+static int use_ssdiff = 0;
static void print_fileinfo(struct fileinfo *info)
{
@@ -83,7 +85,7 @@ static void print_fileinfo(struct fileinfo *info)
}
htmlf("</td><td class='%s'>", class);
cgit_diff_link(info->new_path, NULL, NULL, ctx.qry.head, ctx.qry.sha1,
- ctx.qry.sha2, info->new_path);
+ ctx.qry.sha2, info->new_path, 0);
if (info->status == DIFF_STATUS_COPIED || info->status == DIFF_STATUS_RENAMED)
htmlf(" (%s from %s)",
info->status == DIFF_STATUS_COPIED ? "copied" : "renamed",
@@ -158,7 +160,7 @@ void cgit_print_diffstat(const unsigned char *old_sha1,
html("<div class='diffstat-header'>");
cgit_diff_link("Diffstat", NULL, NULL, ctx.qry.head, ctx.qry.sha1,
- ctx.qry.sha2, NULL);
+ ctx.qry.sha2, NULL, 0);
html("</div>");
html("<table summary='diffstat' class='diffstat'>");
max_changes = 0;
@@ -246,26 +248,54 @@ static void header(unsigned char *sha1, char *path1, int mode1,
html("</div>");
}
+static void print_ssdiff_link()
+{
+ if (!strcmp(ctx.qry.page, "diff")) {
+ if (use_ssdiff)
+ cgit_diff_link("Unidiff", NULL, NULL, ctx.qry.head,
+ ctx.qry.sha1, ctx.qry.sha2, ctx.qry.path, 1);
+ else
+ cgit_diff_link("Side-by-side diff", NULL, NULL,
+ ctx.qry.head, ctx.qry.sha1,
+ ctx.qry.sha2, ctx.qry.path, 1);
+ }
+}
+
static void filepair_cb(struct diff_filepair *pair)
{
unsigned long old_size = 0;
unsigned long new_size = 0;
int binary = 0;
+ linediff_fn print_line_fn = print_line;
+ if (use_ssdiff) {
+ cgit_ssdiff_header_begin();
+ print_line_fn = cgit_ssdiff_line_cb;
+ }
header(pair->one->sha1, pair->one->path, pair->one->mode,
pair->two->sha1, pair->two->path, pair->two->mode);
+ if (use_ssdiff)
+ cgit_ssdiff_header_end();
if (S_ISGITLINK(pair->one->mode) || S_ISGITLINK(pair->two->mode)) {
if (S_ISGITLINK(pair->one->mode))
- print_line(fmt("-Subproject %s", sha1_to_hex(pair->one->sha1)), 52);
+ print_line_fn(fmt("-Subproject %s", sha1_to_hex(pair->one->sha1)), 52);
if (S_ISGITLINK(pair->two->mode))
- print_line(fmt("+Subproject %s", sha1_to_hex(pair->two->sha1)), 52);
+ print_line_fn(fmt("+Subproject %s", sha1_to_hex(pair->two->sha1)), 52);
+ if (use_ssdiff)
+ cgit_ssdiff_footer();
return;
}
- if (cgit_diff_files(pair->one->sha1, pair->two->sha1, &old_size,
- &new_size, &binary, print_line))
+ if (cgit_diff_files(pair->one->sha1, pair->two->sha1, &old_size,
+ &new_size, &binary, print_line_fn))
cgit_print_error("Error running diff");
- if (binary)
- html("Binary files differ");
+ if (binary) {
+ if (use_ssdiff)
+ html("<tr><td colspan='4'>Binary files differ</td></tr>");
+ else
+ html("Binary files differ");
+ }
+ if (use_ssdiff)
+ cgit_ssdiff_footer();
}
void cgit_print_diff(const char *new_rev, const char *old_rev, const char *prefix)
@@ -303,11 +333,21 @@ void cgit_print_diff(const char *new_rev, const char *old_rev, const char *prefi
if (!commit2 || parse_commit(commit2))
cgit_print_error(fmt("Bad commit: %s", sha1_to_hex(old_rev_sha1)));
}
+
+ if ((ctx.qry.ssdiff && !ctx.cfg.ssdiff) || (!ctx.qry.ssdiff && ctx.cfg.ssdiff))
+ use_ssdiff = 1;
+
+ print_ssdiff_link();
cgit_print_diffstat(old_rev_sha1, new_rev_sha1);
- html("<table summary='diff' class='diff'>");
- html("<tr><td>");
+ if (use_ssdiff) {
+ html("<table summary='ssdiff' class='ssdiff'>");
+ } else {
+ html("<table summary='diff' class='diff'>");
+ html("<tr><td>");
+ }
cgit_diff_tree(old_rev_sha1, new_rev_sha1, filepair_cb, prefix);
- html("</td></tr>");
+ if (!use_ssdiff)
+ html("</td></tr>");
html("</table>");
}
diff --git a/ui-log.c b/ui-log.c
index f3132c9..0947604 100644
--- a/ui-log.c
+++ b/ui-log.c
@@ -66,7 +66,7 @@ void show_commit_decorations(struct commit *commit)
else {
strncpy(buf, deco->name, sizeof(buf) - 1);
cgit_commit_link(buf, NULL, "deco", ctx.qry.head,
- sha1_to_hex(commit->object.sha1));
+ sha1_to_hex(commit->object.sha1), 0);
}
deco = deco->next;
}
@@ -89,7 +89,7 @@ void print_commit(struct commit *commit)
htmlf("</td><td%s>",
ctx.qry.showmsg ? " class='logsubject'" : "");
cgit_commit_link(info->subject, NULL, NULL, ctx.qry.head,
- sha1_to_hex(commit->object.sha1));
+ sha1_to_hex(commit->object.sha1), 0);
show_commit_decorations(commit);
html("</td><td>");
html_txt(info->author);
diff --git a/ui-refs.c b/ui-refs.c
index d3b4f6e..33d9bec 100644
--- a/ui-refs.c
+++ b/ui-refs.c
@@ -74,7 +74,7 @@ static int print_branch(struct refinfo *ref)
html("</td><td>");
if (ref->object->type == OBJ_COMMIT) {
- cgit_commit_link(info->subject, NULL, NULL, name, NULL);
+ cgit_commit_link(info->subject, NULL, NULL, name, NULL, 0);
html("</td><td>");
html_txt(info->author);
html("</td><td colspan='2'>");
diff --git a/ui-shared.c b/ui-shared.c
index 3a9e67b..08ea003 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -317,7 +317,7 @@ void cgit_log_link(char *name, char *title, char *class, char *head,
}
void cgit_commit_link(char *name, char *title, char *class, char *head,
- char *rev)
+ char *rev, int toggle_ssdiff)
{
if (strlen(name) > ctx.cfg.max_msg_len && ctx.cfg.max_msg_len >= 15) {
name[ctx.cfg.max_msg_len] = '\0';
@@ -325,7 +325,23 @@ void cgit_commit_link(char *name, char *title, char *class, char *head,
name[ctx.cfg.max_msg_len - 2] = '.';
name[ctx.cfg.max_msg_len - 3] = '.';
}
- reporevlink("commit", name, title, class, head, rev, NULL);
+
+ char *delim;
+
+ delim = repolink(title, class, "commit", head, NULL);
+ if (rev && strcmp(rev, ctx.qry.head)) {
+ html(delim);
+ html("id=");
+ html_url_arg(rev);
+ delim = "&amp;";
+ }
+ if ((ctx.qry.ssdiff && !toggle_ssdiff) || (!ctx.qry.ssdiff && toggle_ssdiff)) {
+ html(delim);
+ html("ss=1");
+ }
+ html("'>");
+ html_txt(name);
+ html("</a>");
}
void cgit_refs_link(char *name, char *title, char *class, char *head,
@@ -341,7 +357,8 @@ void cgit_snapshot_link(char *name, char *title, char *class, char *head,
}
void cgit_diff_link(char *name, char *title, char *class, char *head,
- char *new_rev, char *old_rev, char *path)
+ char *new_rev, char *old_rev, char *path,
+ int toggle_ssdiff)
{
char *delim;
@@ -356,6 +373,11 @@ void cgit_diff_link(char *name, char *title, char *class, char *head,
html(delim);
html("id2=");
html_url_arg(old_rev);
+ delim = "&amp;";
+ }
+ if ((ctx.qry.ssdiff && !toggle_ssdiff) || (!ctx.qry.ssdiff && toggle_ssdiff)) {
+ html(delim);
+ html("ss=1");
}
html("'>");
html_txt(name);
@@ -383,7 +405,7 @@ void cgit_object_link(struct object *obj)
shortrev[10] = '\0';
if (obj->type == OBJ_COMMIT) {
cgit_commit_link(fmt("commit %s...", shortrev), NULL, NULL,
- ctx.qry.head, fullrev);
+ ctx.qry.head, fullrev, 0);
return;
} else if (obj->type == OBJ_TREE)
page = "tree";
@@ -695,9 +717,9 @@ void cgit_print_pageheader(struct cgit_context *ctx)
cgit_tree_link("tree", NULL, hc(cmd, "tree"), ctx->qry.head,
ctx->qry.sha1, NULL);
cgit_commit_link("commit", NULL, hc(cmd, "commit"),
- ctx->qry.head, ctx->qry.sha1);
+ ctx->qry.head, ctx->qry.sha1, 0);
cgit_diff_link("diff", NULL, hc(cmd, "diff"), ctx->qry.head,
- ctx->qry.sha1, ctx->qry.sha2, NULL);
+ ctx->qry.sha1, ctx->qry.sha2, NULL, 0);
if (ctx->repo->max_stats)
cgit_stats_link("stats", NULL, hc(cmd, "stats"),
ctx->qry.head, NULL);
diff --git a/ui-shared.h b/ui-shared.h
index b12aa89..9ebc1f9 100644
--- a/ui-shared.h
+++ b/ui-shared.h
@@ -23,7 +23,7 @@ extern void cgit_log_link(char *name, char *title, char *class, char *head,
char *rev, char *path, int ofs, char *grep,
char *pattern, int showmsg);
extern void cgit_commit_link(char *name, char *title, char *class, char *head,
- char *rev);
+ char *rev, int toggle_ssdiff);
extern void cgit_patch_link(char *name, char *title, char *class, char *head,
char *rev);
extern void cgit_refs_link(char *name, char *title, char *class, char *head,
@@ -31,7 +31,8 @@ extern void cgit_refs_link(char *name, char *title, char *class, char *head,
extern void cgit_snapshot_link(char *name, char *title, char *class,
char *head, char *rev, char *archivename);
extern void cgit_diff_link(char *name, char *title, char *class, char *head,
- char *new_rev, char *old_rev, char *path);
+ char *new_rev, char *old_rev, char *path,
+ int toggle_ssdiff);
extern void cgit_stats_link(char *name, char *title, char *class, char *head,
char *path);
extern void cgit_object_link(struct object *obj);
diff --git a/ui-ssdiff.c b/ui-ssdiff.c
new file mode 100644
index 0000000..408e620
--- /dev/null
+++ b/ui-ssdiff.c
@@ -0,0 +1,369 @@
+#include "cgit.h"
+#include "html.h"
+#include "ui-shared.h"
+
+extern int use_ssdiff;
+
+static int current_old_line, current_new_line;
+
+struct deferred_lines {
+ int line_no;
+ char *line;
+ struct deferred_lines *next;
+};
+
+static struct deferred_lines *deferred_old, *deferred_old_last;
+static struct deferred_lines *deferred_new, *deferred_new_last;
+
+static char *longest_common_subsequence(char *A, char *B)
+{
+ int i, j, ri;
+ int m = strlen(A);
+ int n = strlen(B);
+ int L[m + 1][n + 1];
+ int tmp1, tmp2;
+ int lcs_length;
+ char *result;
+
+ for (i = m; i >= 0; i--) {
+ for (j = n; j >= 0; j--) {
+ if (A[i] == '\0' || B[j] == '\0') {
+ L[i][j] = 0;
+ } else if (A[i] == B[j]) {
+ L[i][j] = 1 + L[i + 1][j + 1];
+ } else {
+ tmp1 = L[i + 1][j];
+ tmp2 = L[i][j + 1];
+ L[i][j] = (tmp1 > tmp2 ? tmp1 : tmp2);
+ }
+ }
+ }
+
+ lcs_length = L[0][0];
+ result = xmalloc(lcs_length + 2);
+ memset(result, 0, sizeof(*result) * (lcs_length + 2));
+
+ ri = 0;
+ i = 0;
+ j = 0;
+ while (i < m && j < n) {
+ if (A[i] == B[j]) {
+ result[ri] = A[i];
+ ri += 1;
+ i += 1;
+ j += 1;
+ } else if (L[i + 1][j] >= L[i][j + 1]) {
+ i += 1;
+ } else {
+ j += 1;
+ }
+ }
+ return result;
+}
+
+static int line_from_hunk(char *line, char type)
+{
+ char *buf1, *buf2;
+ int len;
+
+ buf1 = strchr(line, type);
+ if (buf1 == NULL)
+ return 0;
+ buf1 += 1;
+ buf2 = strchr(buf1, ',');
+ if (buf2 == NULL)
+ return 0;
+ len = buf2 - buf1;
+ buf2 = xmalloc(len + 1);
+ strncpy(buf2, buf1, len);
+ buf2[len] = '\0';
+ int res = atoi(buf2);
+ free(buf2);
+ return res;
+}
+
+static char *replace_tabs(char *line)
+{
+ char *prev_buf = line;
+ char *cur_buf;
+ int linelen = strlen(line);
+ int n_tabs = 0;
+ int i;
+ char *result;
+ char *spaces = " ";
+
+ if (linelen == 0) {
+ result = xmalloc(1);
+ result[0] = '\0';
+ return result;
+ }
+
+ for (i = 0; i < linelen; i++)
+ if (line[i] == '\t')
+ n_tabs += 1;
+ result = xmalloc(linelen + n_tabs * 8 + 1);
+ result[0] = '\0';
+
+ while (1) {
+ cur_buf = strchr(prev_buf, '\t');
+ if (!cur_buf) {
+ strcat(result, prev_buf);
+ break;
+ } else {
+ strcat(result, " ");
+ strncat(result, spaces, 8 - (strlen(result) % 8));
+ strncat(result, prev_buf, cur_buf - prev_buf);
+ }
+ prev_buf = cur_buf + 1;
+ }
+ return result;
+}
+
+static int calc_deferred_lines(struct deferred_lines *start)
+{
+ struct deferred_lines *item = start;
+ int result = 0;
+ while (item) {
+ result += 1;
+ item = item->next;
+ }
+ return result;
+}
+
+static void deferred_old_add(char *line, int line_no)
+{
+ struct deferred_lines *item = xmalloc(sizeof(struct deferred_lines));
+ item->line = xstrdup(line);
+ item->line_no = line_no;
+ item->next = NULL;
+ if (deferred_old) {
+ deferred_old_last->next = item;
+ deferred_old_last = item;
+ } else {
+ deferred_old = deferred_old_last = item;
+ }
+}
+
+static void deferred_new_add(char *line, int line_no)
+{
+ struct deferred_lines *item = xmalloc(sizeof(struct deferred_lines));
+ item->line = xstrdup(line);
+ item->line_no = line_no;
+ item->next = NULL;
+ if (deferred_new) {
+ deferred_new_last->next = item;
+ deferred_new_last = item;
+ } else {
+ deferred_new = deferred_new_last = item;
+ }
+}
+
+static void print_part_with_lcs(char *class, char *line, char *lcs)
+{
+ int line_len = strlen(line);
+ int i, j;
+ char c[2] = " ";
+ int same = 1;
+
+ j = 0;
+ for (i = 0; i < line_len; i++) {
+ c[0] = line[i];
+ if (same) {
+ if (line[i] == lcs[j])
+ j += 1;
+ else {
+ same = 0;
+ htmlf("<span class='%s'>", class);
+ }
+ } else if (line[i] == lcs[j]) {
+ same = 1;
+ htmlf("</span>");
+ j += 1;
+ }
+ html_txt(c);
+ }
+}
+
+static void print_ssdiff_line(char *class,
+ int old_line_no,
+ char *old_line,
+ int new_line_no,
+ char *new_line, int individual_chars)
+{
+ char *lcs = NULL;
+ if (old_line)
+ old_line = replace_tabs(old_line + 1);
+ if (new_line)
+ new_line = replace_tabs(new_line + 1);
+ if (individual_chars && old_line && new_line)
+ lcs = longest_common_subsequence(old_line, new_line);
+ html("<tr>");
+ if (old_line_no > 0)
+ htmlf("<td class='lineno'>%d</td><td class='%s'>",
+ old_line_no, class);
+ else if (old_line)
+ htmlf("<td class='lineno'></td><td class='%s'>", class);
+ else
+ htmlf("<td class='lineno'></td><td class='%s_dark'>", class);
+ if (old_line) {
+ if (lcs)
+ print_part_with_lcs("del", old_line, lcs);
+ else
+ html_txt(old_line);
+ }
+
+ html("</td>");
+ if (new_line_no > 0)
+ htmlf("<td class='lineno'>%d</td><td class='%s'>",
+ new_line_no, class);
+ else if (new_line)
+ htmlf("<td class='lineno'></td><td class='%s'>", class);
+ else
+ htmlf("<td class='lineno'></td><td class='%s_dark'>", class);
+ if (new_line) {
+ if (lcs)
+ print_part_with_lcs("add", new_line, lcs);
+ else
+ html_txt(new_line);
+ }
+
+ html("</td></tr>");
+ if (lcs)
+ free(lcs);
+ if (new_line)
+ free(new_line);
+ if (old_line)
+ free(old_line);
+}
+
+static void print_deferred_old_lines()
+{
+ struct deferred_lines *iter_old, *tmp;
+ iter_old = deferred_old;
+ while (iter_old) {
+ print_ssdiff_line("del", iter_old->line_no,
+ iter_old->line, -1, NULL, 0);
+ tmp = iter_old->next;
+ free(iter_old);
+ iter_old = tmp;
+ }
+}
+
+static void print_deferred_new_lines()
+{
+ struct deferred_lines *iter_new, *tmp;
+ iter_new = deferred_new;
+ while (iter_new) {
+ print_ssdiff_line("add", -1, NULL,
+ iter_new->line_no, iter_new->line, 0);
+ tmp = iter_new->next;
+ free(iter_new);
+ iter_new = tmp;
+ }
+}
+
+static void print_deferred_changed_lines()
+{
+ struct deferred_lines *iter_old, *iter_new, *tmp;
+ int n_old_lines = calc_deferred_lines(deferred_old);
+ int n_new_lines = calc_deferred_lines(deferred_new);
+ int individual_chars = (n_old_lines == n_new_lines ? 1 : 0);
+
+ iter_old = deferred_old;
+ iter_new = deferred_new;
+ while (iter_old || iter_new) {
+ if (iter_old && iter_new)
+ print_ssdiff_line("changed", iter_old->line_no,
+ iter_old->line,
+ iter_new->line_no, iter_new->line,
+ individual_chars);
+ else if (iter_old)
+ print_ssdiff_line("changed", iter_old->line_no,
+ iter_old->line, -1, NULL, 0);
+ else if (iter_new)
+ print_ssdiff_line("changed", -1, NULL,
+ iter_new->line_no, iter_new->line, 0);
+ if (iter_old) {
+ tmp = iter_old->next;
+ free(iter_old);
+ iter_old = tmp;
+ }
+
+ if (iter_new) {
+ tmp = iter_new->next;
+ free(iter_new);
+ iter_new = tmp;
+ }
+ }
+}
+
+void cgit_ssdiff_print_deferred_lines()
+{
+ if (!deferred_old && !deferred_new)
+ return;
+ if (deferred_old && !deferred_new)
+ print_deferred_old_lines();
+ else if (!deferred_old && deferred_new)
+ print_deferred_new_lines();
+ else
+ print_deferred_changed_lines();
+ deferred_old = deferred_old_last = NULL;
+ deferred_new = deferred_new_last = NULL;
+}
+
+/*
+ * print a single line returned from xdiff
+ */
+void cgit_ssdiff_line_cb(char *line, int len)
+{
+ char c = line[len - 1];
+ line[len - 1] = '\0';
+ if (line[0] == '@') {
+ current_old_line = line_from_hunk(line, '-');
+ current_new_line = line_from_hunk(line, '+');
+ }
+
+ if (line[0] == ' ') {
+ if (deferred_old || deferred_new)
+ cgit_ssdiff_print_deferred_lines();
+ print_ssdiff_line("ctx", current_old_line, line,
+ current_new_line, line, 0);
+ current_old_line += 1;
+ current_new_line += 1;
+ } else if (line[0] == '+') {
+ deferred_new_add(line, current_new_line);
+ current_new_line += 1;
+ } else if (line[0] == '-') {
+ deferred_old_add(line, current_old_line);
+ current_old_line += 1;
+ } else if (line[0] == '@') {
+ html("<tr><td colspan='4' class='hunk'>");
+ html_txt(line);
+ html("</td></tr>");
+ } else {
+ html("<tr><td colspan='4' class='ctx'>");
+ html_txt(line);
+ html("</td></tr>");
+ }
+ line[len - 1] = c;
+}
+
+void cgit_ssdiff_header_begin()
+{
+ current_old_line = -1;
+ current_new_line = -1;
+ html("<tr><td class='space' colspan='4'><div></div></td></tr>");
+ html("<tr><td class='head' colspan='4'>");
+}
+
+void cgit_ssdiff_header_end()
+{
+ html("</td><tr>");
+}
+
+void cgit_ssdiff_footer()
+{
+ if (deferred_old || deferred_new)
+ cgit_ssdiff_print_deferred_lines();
+ html("<tr><td class='foot' colspan='4'></td></tr>");
+}
diff --git a/ui-ssdiff.h b/ui-ssdiff.h
new file mode 100644
index 0000000..64b4b12
--- /dev/null
+++ b/ui-ssdiff.h
@@ -0,0 +1,13 @@
+#ifndef UI_SSDIFF_H
+#define UI_SSDIFF_H
+
+extern void cgit_ssdiff_print_deferred_lines();
+
+extern void cgit_ssdiff_line_cb(char *line, int len);
+
+extern void cgit_ssdiff_header_begin();
+extern void cgit_ssdiff_header_end();
+
+extern void cgit_ssdiff_footer();
+
+#endif /* UI_SSDIFF_H */
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-11-10 04:40:24 +0000