X-Git-Url: https://gitweb.ps.run/ps-cgit/blobdiff_plain/4a6201e318d1db69d126f08a3d80ce2d5cf7ac01..4c9916043d6aabb8278e0d78f5fa71a59f82889d:/ui-diff.c

diff --git a/ui-diff.c b/ui-diff.c
index 3c4d52a..12e78b1 100644
--- a/ui-diff.c
+++ b/ui-diff.c
@@ -7,6 +7,153 @@
  */
 
 #include "cgit.h"
+#include "html.h"
+#include "ui-shared.h"
+
+unsigned char old_rev_sha1[20];
+unsigned char new_rev_sha1[20];
+
+static int files, slots;
+static int total_adds, total_rems, max_changes;
+static int lines_added, lines_removed;
+static char *curr_rev;
+
+static 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;
+
+
+static void print_fileinfo(struct fileinfo *info)
+{
+	char *class;
+
+	switch (info->status) {
+	case DIFF_STATUS_ADDED:
+		class = "add";
+		break;
+	case DIFF_STATUS_COPIED:
+		class = "cpy";
+		break;
+	case DIFF_STATUS_DELETED:
+		class = "del";
+		break;
+	case DIFF_STATUS_MODIFIED:
+		class = "upd";
+		break;
+	case DIFF_STATUS_RENAMED:
+		class = "mov";
+		break;
+	case DIFF_STATUS_TYPE_CHANGED:
+		class = "typ";
+		break;
+	case DIFF_STATUS_UNKNOWN:
+		class = "unk";
+		break;
+	case DIFF_STATUS_UNMERGED:
+		class = "stg";
+		break;
+	default:
+		die("bug: unhandled diff status %c", info->status);
+	}
+
+	html("<tr>");
+	htmlf("<td class='mode'>");
+	if (is_null_sha1(info->new_sha1)) {
+		cgit_print_filemode(info->old_mode);
+	} else {
+		cgit_print_filemode(info->new_mode);
+	}
+
+	if (info->old_mode != info->new_mode &&
+	    !is_null_sha1(info->old_sha1) &&
+	    !is_null_sha1(info->new_sha1)) {
+		html("<span class='modechange'>[");
+		cgit_print_filemode(info->old_mode);
+		html("]</span>");
+	}
+	htmlf("</td><td class='%s'>", class);
+	cgit_diff_link(info->new_path, NULL, NULL, ctx.qry.head, curr_rev,
+		       NULL, info->new_path);
+	if (info->status == DIFF_STATUS_COPIED || info->status == DIFF_STATUS_RENAMED)
+		htmlf(" (%s from %s)",
+		      info->status == DIFF_STATUS_COPIED ? "copied" : "renamed",
+		      info->old_path);
+	html("</td><td class='right'>");
+	htmlf("%d", info->added + info->removed);
+	html("</td><td class='graph'>");
+	htmlf("<table summary='file diffstat' width='%d%%'><tr>", (max_changes > 100 ? 100 : max_changes));
+	htmlf("<td class='add' style='width: %.1f%%;'/>",
+	      info->added * 100.0 / max_changes);
+	htmlf("<td class='rem' style='width: %.1f%%;'/>",
+	      info->removed * 100.0 / max_changes);
+	htmlf("<td class='none' style='width: %.1f%%;'/>",
+	      (max_changes - info->removed - info->added) * 100.0 / max_changes);
+	html("</tr></table></td></tr>\n");
+}
+
+static void count_diff_lines(char *line, int len)
+{
+	if (line && (len > 0)) {
+		if (line[0] == '+')
+			lines_added++;
+		else if (line[0] == '-')
+			lines_removed++;
+	}
+}
+
+static void inspect_filepair(struct diff_filepair *pair)
+{
+	files++;
+	lines_added = 0;
+	lines_removed = 0;
+	cgit_diff_files(pair->one->sha1, pair->two->sha1, 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_diffstat(const unsigned char *old_sha1,
+			 const unsigned char *new_sha1)
+{
+	int i;
+
+	html("<div class='diffstat-header'>Diffstat</div>");
+	html("<table summary='diffstat' class='diffstat'>");
+	max_changes = 0;
+	cgit_diff_tree(old_sha1, new_sha1, inspect_filepair, NULL);
+	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",
+	      files, total_adds, total_rems);
+	html("</div>");
+}
 
 
 /*
@@ -37,7 +184,7 @@ static void header(unsigned char *sha1, char *path1, int mode1,
 	char *abbrev1, *abbrev2;
 	int subproject;
 
-	subproject = (S_ISDIRLNK(mode1) || S_ISDIRLNK(mode2));
+	subproject = (S_ISGITLINK(mode1) || S_ISGITLINK(mode2));
 	html("<div class='head'>");
 	html("diff --git a/");
 	html_txt(path1);
@@ -67,9 +214,17 @@ static void header(unsigned char *sha1, char *path1, int mode1,
 				htmlf("..%.6o", mode2);
 		}
 		html("<br/>--- a/");
-		html_txt(path1);
+		if (mode1 != 0)
+			cgit_tree_link(path1, NULL, NULL, ctx.qry.head,
+				       sha1_to_hex(old_rev_sha1), path1);
+		else
+			html_txt(path1);
 		html("<br/>+++ b/");
-		html_txt(path2);
+		if (mode2 != 0)
+			cgit_tree_link(path2, NULL, NULL, ctx.qry.head,
+				       sha1_to_hex(new_rev_sha1), path2);
+		else
+			html_txt(path2);
 	}
 	html("</div>");
 }
@@ -78,10 +233,10 @@ static void filepair_cb(struct diff_filepair *pair)
 {
 	header(pair->one->sha1, pair->one->path, pair->one->mode,
 	       pair->two->sha1, pair->two->path, pair->two->mode);
-	if (S_ISDIRLNK(pair->one->mode) || S_ISDIRLNK(pair->two->mode)) {
-		if (S_ISDIRLNK(pair->one->mode))
+	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);
-		if (S_ISDIRLNK(pair->two->mode))
+		if (S_ISGITLINK(pair->two->mode))
 			print_line(fmt("+Subproject %s", sha1_to_hex(pair->two->sha1)), 52);
 		return;
 	}
@@ -89,52 +244,46 @@ static void filepair_cb(struct diff_filepair *pair)
 		cgit_print_error("Error running diff");
 }
 
-void cgit_print_diff(const char *head, const char *old_hex, const char *new_hex, char *path)
+void cgit_print_diff(const char *new_rev, const char *old_rev, const char *prefix)
 {
-	unsigned char sha1[20], sha2[20];
 	enum object_type type;
 	unsigned long size;
-	struct commit *commit;
-
-	html("<table class='diff'>");
-	html("<tr><td>");
+	struct commit *commit, *commit2;
 
-	if (head && !old_hex && !new_hex) {
-		get_sha1(head, sha1);
-		commit = lookup_commit_reference(sha1);
-		if (commit && !parse_commit(commit))
-			cgit_diff_commit(commit, filepair_cb);
-		else
-			cgit_print_error(fmt("Bad commit: %s", head));
+	if (!new_rev)
+		new_rev = ctx.qry.head;
+	get_sha1(new_rev, new_rev_sha1);
+	type = sha1_object_info(new_rev_sha1, &size);
+	if (type == OBJ_BAD) {
+		cgit_print_error(fmt("Bad object name: %s", new_rev));
 		return;
 	}
+	commit = lookup_commit_reference(new_rev_sha1);
+	if (!commit || parse_commit(commit))
+		cgit_print_error(fmt("Bad commit: %s", sha1_to_hex(new_rev_sha1)));
 
-	get_sha1(old_hex, sha1);
-	get_sha1(new_hex, sha2);
+	if (old_rev)
+		get_sha1(old_rev, old_rev_sha1);
+	else if (commit->parents && commit->parents->item)
+		hashcpy(old_rev_sha1, commit->parents->item->object.sha1);
+	else
+		hashclr(old_rev_sha1);
 
-	type = sha1_object_info(sha1, &size);
-	if (type == OBJ_BAD) {
-		type = sha1_object_info(sha2, &size);
+	if (!is_null_sha1(old_rev_sha1)) {
+		type = sha1_object_info(old_rev_sha1, &size);
 		if (type == OBJ_BAD) {
-			cgit_print_error(fmt("Bad object names: %s, %s", old_hex, new_hex));
+			cgit_print_error(fmt("Bad object name: %s", sha1_to_hex(old_rev_sha1)));
 			return;
 		}
+		commit2 = lookup_commit_reference(old_rev_sha1);
+		if (!commit2 || parse_commit(commit2))
+			cgit_print_error(fmt("Bad commit: %s", sha1_to_hex(old_rev_sha1)));
 	}
+	cgit_print_diffstat(old_rev_sha1, new_rev_sha1);
 
-	switch(type) {
-	case OBJ_BLOB:
-		header(sha1, path, 0644, sha2, path, 0644);
-		if (cgit_diff_files(sha1, sha2, print_line))
-			cgit_print_error("Error running diff");
-		break;
-	case OBJ_TREE:
-		cgit_diff_tree(sha1, sha2, filepair_cb);
-		break;
-	default:
-		cgit_print_error(fmt("Unhandled object type: %s",
-				     typename(type)));
-		break;
-	}
+	html("<table summary='diff' class='diff'>");
+	html("<tr><td>");
+	cgit_diff_tree(old_rev_sha1, new_rev_sha1, filepair_cb, prefix);
 	html("</td></tr>");
 	html("</table>");
 }