Merge branch 'maint'

* maint:
  diff -c -p: do not die on submodules

Conflicts:
	combine-diff.c

diff --git a/combine-diff.c b/combine-diff.c
index 066ce841ed76e03dd87e789f6688cc3f5411ba64..d210656861dcd6568e1228f39dff042ab374a584 100644 (file)
--- a/combine-diff.c
+++ b/combine-diff.c
@@ -6,6 +6,7 @@
 #include "quote.h"
 #include "xdiff-interface.h"
 #include "log-tree.h"
+#include "refs.h"
 
 static struct combine_diff_path *intersect_paths(struct combine_diff_path *curr, int n, int num_parent)
 {
@@ -90,18 +91,24 @@ struct sline {
        unsigned long *p_lno;
 };
 
-static char *grab_blob(const unsigned char *sha1, unsigned long *size)
+static char *grab_blob(const unsigned char *sha1, unsigned int mode, unsigned long *size)
 {
        char *blob;
        enum object_type type;
-       if (is_null_sha1(sha1)) {
+
+       if (S_ISGITLINK(mode)) {
+               blob = xmalloc(100);
+               *size = snprintf(blob, 100,
+                                "Subproject commit %s\n", sha1_to_hex(sha1));
+       } else if (is_null_sha1(sha1)) {
                /* deleted blob */
                *size = 0;
                return xcalloc(1, 1);
+       } else {
+               blob = read_sha1_file(sha1, &type, size);
+               if (type != OBJ_BLOB)
+                       die("object '%s' is not a blob!", sha1_to_hex(sha1));
        }
-       blob = read_sha1_file(sha1, &type, size);
-       if (type != OBJ_BLOB)
-               die("object '%s' is not a blob!", sha1_to_hex(sha1));
        return blob;
 }
 
@@ -195,7 +202,8 @@ static void consume_line(void *state_, char *line, unsigned long len)
        }
 }
 
-static void combine_diff(const unsigned char *parent, mmfile_t *result_file,
+static void combine_diff(const unsigned char *parent, unsigned int mode,
+                        mmfile_t *result_file,
                         struct sline *sline, unsigned int cnt, int n,
                         int num_parent)
 {
@@ -211,7 +219,7 @@ static void combine_diff(const unsigned char *parent, mmfile_t *result_file,
        if (!cnt)
                return; /* result deleted */
 
-       parent_file.ptr = grab_blob(parent, &sz);
+       parent_file.ptr = grab_blob(parent, mode, &sz);
        parent_file.size = sz;
        memset(&xpp, 0, sizeof(xpp));
        xpp.flags = XDF_NEED_MINIMAL;
@@ -692,7 +700,7 @@ static void show_patch_diff(struct combine_diff_path *elem, int num_parent,
 
        /* Read the result of merge first */
        if (!working_tree_file)
-               result = grab_blob(elem->sha1, &result_size);
+               result = grab_blob(elem->sha1, elem->mode, &result_size);
        else {
                /* Used by diff-tree to read from the working tree */
                struct stat st;
@@ -712,6 +720,12 @@ static void show_patch_diff(struct combine_diff_path *elem, int num_parent,
                        result_size = buf.len;
                        result = strbuf_detach(&buf, NULL);
                        elem->mode = canon_mode(st.st_mode);
+               } else if (S_ISDIR(st.st_mode)) {
+                       unsigned char sha1[20];
+                       if (resolve_gitlink_ref(elem->path, "HEAD", sha1) < 0)
+                               result = grab_blob(elem->sha1, elem->mode, &result_size);
+                       else
+                               result = grab_blob(sha1, elem->mode, &result_size);
                } else if (0 <= (fd = open(elem->path, O_RDONLY))) {
                        size_t len = xsize_t(st.st_size);
                        ssize_t done;
@@ -804,7 +818,9 @@ static void show_patch_diff(struct combine_diff_path *elem, int num_parent,
                        }
                }
                if (i <= j)
-                       combine_diff(elem->parent[i].sha1, &result_file, sline,
+                       combine_diff(elem->parent[i].sha1,
+                                    elem->parent[i].mode,
+                                    &result_file, sline,
                                     cnt, i, num_parent);
                if (elem->parent[i].mode != elem->mode)
                        mode_differs = 1;

diff --git a/t/t4027-diff-submodule.sh b/t/t4027-diff-submodule.sh
index 1c2edebb09bd6e1d7581365011c8500da57942c5..5cf8924b2163ec55328ce270911a23cdcf52634a 100755 (executable)
--- a/t/t4027-diff-submodule.sh
+++ b/t/t4027-diff-submodule.sh
@@ -57,4 +57,43 @@ test_expect_success 'git diff (empty submodule dir)' '
        test_cmp empty actual.empty
 '
 
+test_expect_success 'conflicted submodule setup' '
+
+       # 39 efs
+       c=fffffffffffffffffffffffffffffffffffffff
+       (
+               echo "000000 $_z40 0    sub"
+               echo "160000 1$c 1      sub"
+               echo "160000 2$c 2      sub"
+               echo "160000 3$c 3      sub"
+       ) | git update-index --index-info &&
+       echo >expect.nosub '\''diff --cc sub
+index 2ffffff,3ffffff..0000000
+--- a/sub
++++ b/sub
+@@@ -1,1 -1,1 +1,1 @@@
+- Subproject commit 2fffffffffffffffffffffffffffffffffffffff
+ -Subproject commit 3fffffffffffffffffffffffffffffffffffffff
+++Subproject commit 0000000000000000000000000000000000000000'\'' &&
+
+       hh=$(git rev-parse HEAD) &&
+       sed -e "s/$_z40/$hh/" expect.nosub >expect.withsub
+
+'
+
+test_expect_success 'combined (empty submodule)' '
+       rm -fr sub && mkdir sub &&
+       git diff >actual &&
+       test_cmp expect.nosub actual
+'
+
+test_expect_success 'combined (with submodule)' '
+       rm -fr sub &&
+       git clone --no-checkout . sub &&
+       git diff >actual &&
+       test_cmp expect.withsub actual
+'
+
+
+
 test_done