From 2cc8b99f083014c58d8937bfa4dcd2bc47cd7e58 Mon Sep 17 00:00:00 2001
From: Johan Herland <johan@herland.net>
Date: Thu, 24 Jun 2010 17:52:57 +0200
Subject: Add URL parameter 'ignorews' for optionally ignoring whitespace in
 diffs

The new ctx.qry.ignorews variable is passed via cgit_diff_files() and
cgit_diff_tree() to Git's diff machinery. This is equivalent to passing
--ignore-all-space to 'git diff'.

Signed-off-by: Johan Herland <johan@herland.net>
---
 ui-diff.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

(limited to 'ui-diff.c')

diff --git a/ui-diff.c b/ui-diff.c
index e0a72f7..1656b77 100644
--- a/ui-diff.c
+++ b/ui-diff.c
@@ -127,7 +127,7 @@ static void inspect_filepair(struct diff_filepair *pair)
 	lines_added = 0;
 	lines_removed = 0;
 	cgit_diff_files(pair->one->sha1, pair->two->sha1, &old_size, &new_size,
-			&binary, 0, count_diff_lines);
+			&binary, 0, ctx.qry.ignorews, count_diff_lines);
 	if (files >= slots) {
 		if (slots == 0)
 			slots = 4;
@@ -174,7 +174,8 @@ void cgit_print_diffstat(const unsigned char *old_sha1,
 	html("</div>");
 	html("<table summary='diffstat' class='diffstat'>");
 	max_changes = 0;
-	cgit_diff_tree(old_sha1, new_sha1, inspect_filepair, prefix);
+	cgit_diff_tree(old_sha1, new_sha1, inspect_filepair, prefix,
+		       ctx.qry.ignorews);
 	for(i = 0; i<files; i++)
 		print_fileinfo(&items[i]);
 	html("</table>");
@@ -296,7 +297,8 @@ static void filepair_cb(struct diff_filepair *pair)
 		return;
 	}
 	if (cgit_diff_files(pair->one->sha1, pair->two->sha1, &old_size,
-			    &new_size, &binary, ctx.qry.context, print_line_fn))
+			    &new_size, &binary, ctx.qry.context,
+			    ctx.qry.ignorews, print_line_fn))
 		cgit_print_error("Error running diff");
 	if (binary) {
 		if (use_ssdiff)
@@ -356,7 +358,8 @@ void cgit_print_diff(const char *new_rev, const char *old_rev, const char *prefi
 		html("<table summary='diff' class='diff'>");
 		html("<tr><td>");
 	}
-	cgit_diff_tree(old_rev_sha1, new_rev_sha1, filepair_cb, prefix);
+	cgit_diff_tree(old_rev_sha1, new_rev_sha1, filepair_cb, prefix,
+		       ctx.qry.ignorews);
 	if (!use_ssdiff)
 		html("</td></tr>");
 	html("</table>");
-- 
cgit v1.2.3-59-g8ed1b


From 72ef913514288bd2aae23509581097bfd3edf8c4 Mon Sep 17 00:00:00 2001
From: Johan Herland <johan@herland.net>
Date: Thu, 24 Jun 2010 17:53:20 +0200
Subject: ui-diff: Add link to ignore/show whitespace changes in diffs

Add a link to the "Diffstat" line to ignore/show whitespace changes in the
generated diff.

To support this, cgit_commit_link() and cgit_diff_link() has learned to
preserve the ctx.qry.ignorews variable.

Signed-off-by: Johan Herland <johan@herland.net>
---
 ui-diff.c   |  5 +++++
 ui-shared.c | 10 ++++++++++
 2 files changed, 15 insertions(+)

(limited to 'ui-diff.c')

diff --git a/ui-diff.c b/ui-diff.c
index 1656b77..0dcabe9 100644
--- a/ui-diff.c
+++ b/ui-diff.c
@@ -171,6 +171,11 @@ void cgit_print_diffstat(const unsigned char *old_sha1,
 	cgit_self_link("less", NULL, NULL, &ctx);
 	ctx.qry.context = save_context;
 	html(" context)");
+	html(" (");
+	ctx.qry.ignorews = (ctx.qry.ignorews + 1) % 2;
+	cgit_self_link(ctx.qry.ignorews ? "ignore" : "show", NULL, NULL, &ctx);
+	ctx.qry.ignorews = (ctx.qry.ignorews + 1) % 2;
+	html(" whitespace changes)");
 	html("</div>");
 	html("<table summary='diffstat' class='diffstat'>");
 	max_changes = 0;
diff --git a/ui-shared.c b/ui-shared.c
index c99bcec..f46c935 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -349,6 +349,11 @@ void cgit_commit_link(char *name, const char *title, const char *class,
 		htmlf("%d", ctx.qry.context);
 		delim = "&amp;";
 	}
+	if (ctx.qry.ignorews) {
+		html(delim);
+		html("ignorews=1");
+		delim = "&amp;";
+	}
 	html("'>");
 	html_txt(name);
 	html("</a>");
@@ -397,6 +402,11 @@ void cgit_diff_link(const char *name, const char *title, const char *class,
 		htmlf("%d", ctx.qry.context);
 		delim = "&amp;";
 	}
+	if (ctx.qry.ignorews) {
+		html(delim);
+		html("ignorews=1");
+		delim = "&amp;";
+	}
 	html("'>");
 	html_txt(name);
 	html("</a>");
-- 
cgit v1.2.3-59-g8ed1b