X-Git-Url: https://gitweb.ps.run/ps-cgit/blobdiff_plain/bdae1d8a8d39206ac75ab86f8e9ef53b2f29432e..936295c4e4de8da83701c67377a911a0aefbcbd6:/ui-diff.c

diff --git a/ui-diff.c b/ui-diff.c
index 49e5b46..5b6df1f 100644
--- a/ui-diff.c
+++ b/ui-diff.c
@@ -1,12 +1,13 @@
 /* ui-diff.c: show diff between two blobs
  *
- * Copyright (C) 2006 Lars Hjemli
+ * Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com>
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #include "cgit.h"
+#include "ui-diff.h"
 #include "html.h"
 #include "ui-shared.h"
 #include "ui-ssdiff.h"
@@ -96,7 +97,7 @@ 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, 0);
+		       ctx.qry.sha2, info->new_path);
 	if (info->status == DIFF_STATUS_COPIED || info->status == DIFF_STATUS_RENAMED) {
 		htmlf(" (%s from ",
 		      info->status == DIFF_STATUS_COPIED ? "copied" : "renamed");
@@ -166,14 +167,15 @@ static void inspect_filepair(struct diff_filepair *pair)
 	total_rems += lines_removed;
 }
 
-void cgit_print_diffstat(const unsigned char *old_sha1,
-			 const unsigned char *new_sha1, const char *prefix)
+static void cgit_print_diffstat(const unsigned char *old_sha1,
+				const unsigned char *new_sha1,
+				const char *prefix)
 {
 	int i;
 
 	html("<div class='diffstat-header'>");
 	cgit_diff_link("Diffstat", NULL, NULL, ctx.qry.head, ctx.qry.sha1,
-		       ctx.qry.sha2, NULL, 0);
+		       ctx.qry.sha2, NULL);
 	if (prefix) {
 		html(" (limited to '");
 		html_txt(prefix);
@@ -343,10 +345,11 @@ void cgit_print_diff_ctrls()
 	html("</tr><tr>");
 	html("<td class='label'>mode:</td>");
 	html("<td class='ctrl'>");
-	html("<select name='ss' onchange='this.form.submit();'>");
-	curr = ctx.qry.has_ssdiff ? ctx.qry.ssdiff : ctx.cfg.ssdiff;
+	html("<select name='dt' onchange='this.form.submit();'>");
+	curr = ctx.qry.has_difftype ? ctx.qry.difftype : ctx.cfg.difftype;
 	html_intoption(0, "unified", curr);
 	html_intoption(1, "ssdiff", curr);
+	html_intoption(2, "stat only", curr);
 	html("</select></td></tr>");
 	html("<tr><td/><td class='ctrl'>");
 	html("<noscript><input type='submit' value='reload'/></noscript>");
@@ -356,53 +359,90 @@ void cgit_print_diff_ctrls()
 }
 
 void cgit_print_diff(const char *new_rev, const char *old_rev,
-		     const char *prefix, int show_ctrls)
+		     const char *prefix, int show_ctrls, int raw)
 {
-	enum object_type type;
-	unsigned long size;
 	struct commit *commit, *commit2;
+	const unsigned char *old_tree_sha1, *new_tree_sha1;
+	diff_type difftype;
 
 	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));
+	if (get_sha1(new_rev, new_rev_sha1)) {
+		cgit_print_error("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)));
+		cgit_print_error("Bad commit: %s", sha1_to_hex(new_rev_sha1));
 		return;
 	}
+	new_tree_sha1 = commit->tree->object.sha1;
 
-	if (old_rev)
-		get_sha1(old_rev, old_rev_sha1);
-	else if (commit->parents && commit->parents->item)
+	if (old_rev) {
+		if (get_sha1(old_rev, old_rev_sha1)) {
+			cgit_print_error("Bad object name: %s", old_rev);
+			return;
+		}
+	} else if (commit->parents && commit->parents->item) {
 		hashcpy(old_rev_sha1, commit->parents->item->object.sha1);
-	else
+	} else {
 		hashclr(old_rev_sha1);
+	}
 
 	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 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_error("Bad commit: %s", sha1_to_hex(old_rev_sha1));
 			return;
 		}
+		old_tree_sha1 = commit2->tree->object.sha1;
+	} else {
+		old_tree_sha1 = NULL;
 	}
 
-	use_ssdiff = ctx.qry.has_ssdiff ? ctx.qry.ssdiff : ctx.cfg.ssdiff;
+	if (raw) {
+		struct diff_options diffopt;
+
+		diff_setup(&diffopt);
+		diffopt.output_format = DIFF_FORMAT_PATCH;
+		DIFF_OPT_SET(&diffopt, RECURSIVE);
+		diff_setup_done(&diffopt);
+
+		ctx.page.mimetype = "text/plain";
+		cgit_print_http_headers();
+		if (old_tree_sha1) {
+			diff_tree_sha1(old_tree_sha1, new_tree_sha1, "",
+				       &diffopt);
+		} else {
+			diff_root_tree_sha1(new_tree_sha1, "", &diffopt);
+		}
+		diffcore_std(&diffopt);
+		diff_flush(&diffopt);
+
+		return;
+	}
+
+	difftype = ctx.qry.has_difftype ? ctx.qry.difftype : ctx.cfg.difftype;
+	use_ssdiff = difftype == DIFF_SSDIFF;
 
 	if (show_ctrls)
 		cgit_print_diff_ctrls();
 
+	/*
+	 * Clicking on a link to a file in the diff stat should show a diff
+	 * of the file, showing the diff stat limited to a single file is
+	 * pretty useless.  All links from this point on will be to
+	 * individual files, so we simply reset the difftype in the query
+	 * here to avoid propagating DIFF_STATONLY to the individual files.
+	 */
+	if (difftype == DIFF_STATONLY)
+		ctx.qry.difftype = ctx.cfg.difftype;
+
 	cgit_print_diffstat(old_rev_sha1, new_rev_sha1, prefix);
 
+	if (difftype == DIFF_STATONLY)
+		return;
+
 	if (use_ssdiff) {
 		html("<table summary='ssdiff' class='ssdiff'>");
 	} else {