Merge branch 'jc/diffcore-rotate'

"git {diff,log} --{skip,rotate}-to=<path>" allows the user to
discard diff output for early paths or move them to the end of the
output.

* jc/diffcore-rotate:
  diff: --{rotate,skip}-to=<path>

4 files changed, 7 insertions, 0 deletions

diff --git a/builtin/diff-files.c b/builtin/diff-files.c
index bb85266102..70103c4095 100644
--- a/builtin/diff-files.c
+++ b/builtin/diff-files.c
@@ -54,6 +54,7 @@ int cmd_diff_files(int argc, const char **argv, const char *prefix)
 	}
 	if (!rev.diffopt.output_format)
 		rev.diffopt.output_format = DIFF_FORMAT_RAW;
+	rev.diffopt.rotate_to_strict = 1;
 
 	/*
 	 * Make sure there are NO revision (i.e. pending object) parameter,
diff --git a/builtin/diff-index.c b/builtin/diff-index.c
index c33d7af478..176fe7ff2b 100644
--- a/builtin/diff-index.c
+++ b/builtin/diff-index.c
@@ -41,6 +41,8 @@ int cmd_diff_index(int argc, const char **argv, const char *prefix)
 	if (!rev.diffopt.output_format)
 		rev.diffopt.output_format = DIFF_FORMAT_RAW;
 
+	rev.diffopt.rotate_to_strict = 1;
+
 	/*
 	 * Make sure there is one revision (i.e. pending object),
 	 * and there is no revision filtering parameters.
diff --git a/builtin/diff-tree.c b/builtin/diff-tree.c
index 178d12f07f..f33d30d57b 100644
--- a/builtin/diff-tree.c
+++ b/builtin/diff-tree.c
@@ -156,6 +156,8 @@ int cmd_diff_tree(int argc, const char **argv, const char *prefix)
 	if (merge_base && opt->pending.nr != 2)
 		die(_("--merge-base only works with two commits"));
 
+	opt->diffopt.rotate_to_strict = 1;
+
 	/*
 	 * NOTE!  We expect "a..b" to expand to "^a b" but it is
 	 * perfectly valid for revision range parser to yield "b ^a",
@@ -192,6 +194,7 @@ int cmd_diff_tree(int argc, const char **argv, const char *prefix)
 		int saved_nrl = 0;
 		int saved_dcctc = 0;
 
+		opt->diffopt.rotate_to_strict = 0;
 		if (opt->diffopt.detect_rename) {
 			if (!the_index.cache)
 				repo_read_index(the_repository);
diff --git a/builtin/diff.c b/builtin/diff.c
index 0f4859abf7..617b9a4101 100644
--- a/builtin/diff.c
+++ b/builtin/diff.c
@@ -491,6 +491,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
 	}
 
 	rev.diffopt.flags.recursive = 1;
+	rev.diffopt.rotate_to_strict = 1;
 
 	setup_diff_pager(&rev.diffopt);