cgit

commit 6180e6169d6e87a3bea7e4da835dca17f93e5cfd

Author: Johan Herland <johan@herland.net>

Add URL parameter 'context' for changing the number of context lines in diffs

The new ctx.qry.context variable is picked up by cgit_print_diff(), and
passed via cgit_diff_files() to Git's diff machinery.

Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Lars Hjemli <hjemli@gmail.com>

 cgit.c | 2 ++
 cgit.h | 3 ++-
 shared.c | 5 +++--
 ui-diff.c | 4 ++--
 ui-log.c | 2 +-
 ui-patch.c | 2 +-


diff --git a/cgit.c b/cgit.c
index 2c3ad73e064b556a23629194b9ca0a0a696186ee..e9bafb506ef38c24c4b4300de08d0b5965a738f6 100644
--- a/cgit.c
+++ b/cgit.c
@@ -250,6 +250,8 @@ 	} else if (!strcmp(name, "period")) {
 		ctx.qry.period = xstrdup(value);
 	} else if (!strcmp(name, "ss")) {
 		ctx.qry.ssdiff = atoi(value);
+	} else if (!strcmp(name, "context")) {
+		ctx.qry.context = atoi(value);
 	}
 }
 




diff --git a/cgit.h b/cgit.h
index f990b1506e29cdc10e89697041da06959319fdaa..bb8f598b1f60457cebbf1beeb8f7de8e673e59e0 100644
--- a/cgit.h
+++ b/cgit.h
@@ -145,6 +145,7 @@ 	int nohead;
 	char *sort;
 	int showmsg;
 	int ssdiff;
+	int context;
 	char *vpath;
 };
 
@@ -274,7 +275,7 @@
 extern int cgit_diff_files(const unsigned char *old_sha1,
 			   const unsigned char *new_sha1,
 			   unsigned long *old_size, unsigned long *new_size,
-			   int *binary, linediff_fn fn);
+			   int *binary, int context, linediff_fn fn);
 
 extern void cgit_diff_tree(const unsigned char *old_sha1,
 			   const unsigned char *new_sha1,




diff --git a/shared.c b/shared.c
index 6e8f0ce89f5be4c0d53b29a12f200c1c10f7cbc7..7cf1e59a2bdac66900592cc87827332b767eb492 100644
--- a/shared.c
+++ b/shared.c
@@ -262,7 +262,8 @@ }
 
 int cgit_diff_files(const unsigned char *old_sha1,
 		    const unsigned char *new_sha1, unsigned long *old_size,
-		    unsigned long *new_size, int *binary, linediff_fn fn)
+		    unsigned long *new_size, int *binary, int context,
+		    linediff_fn fn)
 {
 	mmfile_t file1, file2;
 	xpparam_t diff_params;
@@ -285,7 +286,7 @@ 	memset(&diff_params, 0, sizeof(diff_params));
 	memset(&emit_params, 0, sizeof(emit_params));
 	memset(&emit_cb, 0, sizeof(emit_cb));
 	diff_params.flags = XDF_NEED_MINIMAL;
-	emit_params.ctxlen = 3;
+	emit_params.ctxlen = context > 0 ? context : 3;
 	emit_params.flags = XDL_EMIT_FUNCNAMES;
 	emit_cb.outf = filediff_cb;
 	emit_cb.priv = fn;




diff --git a/ui-diff.c b/ui-diff.c
index fb836df1342e3475558f5f3c8c9fbb84c99a95be..d3a3b2c8bd04977232baa77004ec2e7015eb51b6 100644
--- a/ui-diff.c
+++ b/ui-diff.c
@@ -127,7 +127,7 @@ 	files++;
 	lines_added = 0;
 	lines_removed = 0;
 	cgit_diff_files(pair->one->sha1, pair->two->sha1, &old_size, &new_size,
-			&binary, count_diff_lines);
+			&binary, 0, count_diff_lines);
 	if (files >= slots) {
 		if (slots == 0)
 			slots = 4;
@@ -288,7 +288,7 @@ 			cgit_ssdiff_footer();
 		return;
 	}
 	if (cgit_diff_files(pair->one->sha1, pair->two->sha1, &old_size,
-			    &new_size, &binary, print_line_fn))
+			    &new_size, &binary, ctx.qry.context, print_line_fn))
 		cgit_print_error("Error running diff");
 	if (binary) {
 		if (use_ssdiff)




diff --git a/ui-log.c b/ui-log.c
index bfbe436099953599f0ef77abd2c76094599fbf89..5eb5c813beedaebf7bb0921f20c892c0556f9628 100644
--- a/ui-log.c
+++ b/ui-log.c
@@ -33,7 +33,7 @@
 	files++;
 	if (ctx.repo->enable_log_linecount)
 		cgit_diff_files(pair->one->sha1, pair->two->sha1, &old_size,
-				&new_size, &binary, count_lines);
+				&new_size, &binary, 0, count_lines);
 }
 
 void show_commit_decorations(struct commit *commit)




diff --git a/ui-patch.c b/ui-patch.c
index 25dc9fed9913fd396ff4ff6de6979b50bd28a000..d13104cf5fa05b30dc15f0377f7943fa6d3faec5 100644
--- a/ui-patch.c
+++ b/ui-patch.c
@@ -71,7 +71,7 @@ 			print_line(fmt("+Subproject %s", sha1_to_hex(pair->two->sha1)), 52);
 		return;
 	}
 	if (cgit_diff_files(pair->one->sha1, pair->two->sha1, &old_size,
-			    &new_size, &binary, print_line))
+			    &new_size, &binary, 0, print_line))
 		html("Error running diff");
 	if (binary)
 		html("Binary files differ\n");