Get rid of the dependency to GNU diff in the tests

diff --git a/t/t1001-read-tree-m-2way.sh b/t/t1001-read-tree-m-2way.sh
index 5b69681c520afc3f4838dc0540637260fa9f20fc..030226bbfbd764a21aa59577b365868237d4f40b 100755 (executable)
--- a/t/t1001-read-tree-m-2way.sh
+++ b/t/t1001-read-tree-m-2way.sh
@@ -11,7 +11,7 @@ There is the head (called H) and another commit (called M), which is
 simply ahead of H.  The index and the work tree contains a state that
 is derived from H, but may also have local changes.  This test checks
 all the combinations described in the two-tree merge "carry forward"
-rules, found in <Documentation/git-rev-tree.txt>.
+rules, found in <Documentation/git-read-tree.txt>.
 
 In the test, these paths are used:
         bozbar  - in H, stays in M, modified from bozbar to gnusto
@@ -33,11 +33,11 @@ compare_change () {
            -e '/^--- /d; /^+++ /d; /^@@ /d;' \
            -e 's/^\([-+][0-7][0-7][0-7][0-7][0-7][0-7]\) '"$_x40"' /\1 X /p' \
            "$1"
-       diff -u expected current
+       git diff expected current
 }
 
 check_cache_at () {
-       clean_if_empty=`git-diff-files "$1"`
+       clean_if_empty=`git-diff-files -- "$1"`
        case "$clean_if_empty" in
        '')  echo "$1: clean" ;;
        ?*)  echo "$1: dirty" ;;
@@ -86,7 +86,7 @@ test_expect_success \
     'rm -f .git/index &&
      read_tree_twoway $treeH $treeM &&
      git-ls-files --stage >1-3.out &&
-     diff -u M.out 1-3.out &&
+     git diff M.out 1-3.out &&
      check_cache_at bozbar dirty &&
      check_cache_at frotz dirty &&
      check_cache_at nitfol dirty'
@@ -101,7 +101,7 @@ test_expect_success \
      git-update-index --add yomin &&
      read_tree_twoway $treeH $treeM &&
      git-ls-files --stage >4.out || return 1
-     diff -u M.out 4.out >4diff.out
+     git diff M.out 4.out >4diff.out
      compare_change 4diff.out expected &&
      check_cache_at yomin clean'
 
@@ -115,7 +115,7 @@ test_expect_success \
      echo yomin yomin >yomin &&
      read_tree_twoway $treeH $treeM &&
      git-ls-files --stage >5.out || return 1
-     diff -u M.out 5.out >5diff.out
+     git diff M.out 5.out >5diff.out
      compare_change 5diff.out expected &&
      check_cache_at yomin dirty'
 
@@ -127,7 +127,7 @@ test_expect_success \
      git-update-index --add frotz &&
      read_tree_twoway $treeH $treeM &&
      git-ls-files --stage >6.out &&
-     diff -u M.out 6.out &&
+     git diff M.out 6.out &&
      check_cache_at frotz clean'
 
 test_expect_success \
@@ -140,7 +140,7 @@ test_expect_success \
      echo frotz frotz >frotz &&
      read_tree_twoway $treeH $treeM &&
      git-ls-files --stage >7.out &&
-     diff -u M.out 7.out &&
+     git diff M.out 7.out &&
      check_cache_at frotz dirty'
 
 test_expect_success \
@@ -171,7 +171,7 @@ test_expect_success \
      git-update-index --add rezrov &&
      read_tree_twoway $treeH $treeM &&
      git-ls-files --stage >10.out &&
-     diff -u M.out 10.out'
+     git diff M.out 10.out'
 
 test_expect_success \
     '11 - dirty path removed.' \
@@ -216,7 +216,7 @@ test_expect_success \
      git-update-index --add nitfol &&
      read_tree_twoway $treeH $treeM &&
      git-ls-files --stage >14.out || return 1
-     diff -u M.out 14.out >14diff.out
+     git diff M.out 14.out >14diff.out
      compare_change 14diff.out expected &&
      check_cache_at nitfol clean'
 
@@ -230,7 +230,7 @@ test_expect_success \
      echo nitfol nitfol nitfol >nitfol &&
      read_tree_twoway $treeH $treeM &&
      git-ls-files --stage >15.out || return 1
-     diff -u M.out 15.out >15diff.out
+     git diff M.out 15.out >15diff.out
      compare_change 15diff.out expected &&
      check_cache_at nitfol dirty'
 
@@ -262,7 +262,7 @@ test_expect_success \
      git-update-index --add bozbar &&
      read_tree_twoway $treeH $treeM &&
      git-ls-files --stage >18.out &&
-     diff -u M.out 18.out &&
+     git diff M.out 18.out &&
      check_cache_at bozbar clean'
 
 test_expect_success \
@@ -275,7 +275,7 @@ test_expect_success \
      echo gnusto gnusto >bozbar &&
      read_tree_twoway $treeH $treeM &&
      git-ls-files --stage >19.out &&
-     diff -u M.out 19.out &&
+     git diff M.out 19.out &&
      check_cache_at bozbar dirty'
 
 test_expect_success \
@@ -287,7 +287,7 @@ test_expect_success \
      git-update-index --add bozbar &&
      read_tree_twoway $treeH $treeM &&
      git-ls-files --stage >20.out &&
-     diff -u M.out 20.out &&
+     git diff M.out 20.out &&
      check_cache_at bozbar dirty'
 
 test_expect_success \
@@ -337,7 +337,7 @@ test_expect_success \
      git-update-index --add DF &&
      read_tree_twoway $treeDF $treeDFDF &&
      git-ls-files --stage >DFDFcheck.out &&
-     diff -u DFDF.out DFDFcheck.out &&
+     git diff DFDF.out DFDFcheck.out &&
      check_cache_at DF/DF dirty &&
      :'