[RFC] Enable 'check for copy and renames' (-C) also when path filtering

From: Marco Costalba <hidden>
Date: 2016-06-15 22:42:37
Subsystem: kernel build + files below scripts/ (unless maintained elsewhere), the rest · Maintainers: Nathan Chancellor, Nicolas Schier, Linus Torvalds

It seems that -C option of git-diff-tree it works only if the whole
changeset is retrieved.
From git repository:
- Ask for all

$git diff-tree  -r -p -C 5d4a600
5d4a60033543e063bc9d77ca957de0187fb58fb3
diff --git a/Makefile b/Makefile
index 132c9cf..4fd62bc 100644
--- a/Makefile
+++ b/Makefile
@@ -177,7 +177,7 @@ PROGRAMS = \
  	git-convert-objects$X git-fetch-pack$X git-fsck-objects$X \

            ----cut----
diff --git a/pack-objects.c b/builtin-pack-objects.c
similarity index 100%                          <-------  similarity and
rename from pack-objects.c              <--------  rename info shown
rename to builtin-pack-objects.c      <--------  only in this case
index 861c7f0..2301cd5 100644
--- a/pack-objects.c
+++ b/builtin-pack-objects.c
@@ -1,3 +1,4 @@
+#include "builtin.h"
 #include "cache.h"


- Ask for pack-objects.c only
$git diff-tree  -r -p -C 5d4a600 -- pack-objects.c
5d4a60033543e063bc9d77ca957de0187fb58fb3
diff --git a/pack-objects.c b/pack-objects.c
deleted file mode 100644
index 861c7f0..0000000
--- a/pack-objects.c
+++ /dev/null
@@ -1,1376 +0,0 @@
-#include "cache.h"
-#include "object.h"


- Ask for builtin-pack-objects.conly
$git diff-tree  -r -p -C 5d4a600 -- builtin-pack-objects.c
5d4a60033543e063bc9d77ca957de0187fb58fb3
diff --git a/builtin-pack-objects.c b/builtin-pack-objects.c
new file mode 100644
index 0000000..2301cd5
--- /dev/null
+++ b/builtin-pack-objects.c
@@ -0,0 +1,1376 @@
+#include "builtin.h"
+#include "cache.h"
+#include "object.h"
Showing rename info also when filtering on a specified path could be
useful to retrieve a single file history following renames.

Thanks
Marco
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