diff: turn --ita-invisible-in-index on by default

Due to the implementation detail of intent-to-add entries, the current "git diff" (i.e. no treeish or --cached argument) would show the changes in the i-t-a file, but it does not mark the file as new, while "diff --cached" would mark the file as new while showing its content as empty. $ git diff | $ diff --cached --------------------------------|------------------------------- diff --git a/new b/new | diff --git a/new b/new index e69de29..5ad28e2 100644 | new file mode 100644 --- a/new | index 0000000..e69de29 +++ b/new | @@ -0,0 +1 @@ | +haha | One evidence of the current output being wrong is that, the output from "git diff" (with ita entries) cannot be applied because it assumes empty files exist before applying. Turning on --ita-invisible-in-index [1] [2] would fix this. The result is "new file" line moving from "git diff --cached" to "git diff". $ git diff | $ diff --cached --------------------------------|------------------------------- diff --git a/new b/new | new file mode 100644 | index 0000000..5ad28e2 | --- /dev/null | +++ b/new | @@ -0,0 +1 @@ | +haha | This option is on by default in git-status [1] but we need more fixup in rename detection code [3]. Luckily we don't need to do anything else for the rename detection code in diff.c (wt-status.c uses a customized one). [1] 425a28e0a4 (diff-lib: allow ita entries treated as "not yet exist in index" - 2016-10-24) [2] b42b451919 (diff: add --ita-[in]visible-in-index - 2016-10-24) [3] bc3dca07f4 (Merge branch 'nd/ita-wt-renames-in-status' - 2018-01-23) Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Nguyễn Thái Ngọc Duy committed May 26, 2018 at 14:08 UTC 0231ae71d3d6706183777fbfd91667d620776e87
3 files changed +41 -10
builtin/diff.c
+7
@@ -352,6 +352,13 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
352 rev.diffopt.flags.allow_external = 1;
353 rev.diffopt.flags.allow_textconv = 1;
354
355 + /*
356 + * Default to intent-to-add entries invisible in the
357 + * index. This makes them show up as new files in diff-files
358 + * and not at all in diff-cached.
359 + */
360 + rev.diffopt.ita_invisible_in_index = 1;
361 +
362 if (nongit)
363 die(_("Not a git repository"));
364 argc = setup_revisions(argc, argv, &rev, NULL);
t/t2203-add-intent.sh
+28 -6
@@ -70,8 +70,7 @@ test_expect_success 'i-t-a entry is simply ignored' '
70 git commit -m second &&
71 test $(git ls-tree HEAD -- nitfol | wc -l) = 0 &&
72 test $(git diff --name-only HEAD -- nitfol | wc -l) = 1 &&
73 - test $(git diff --name-only --ita-invisible-in-index HEAD -- nitfol | wc -l) = 1 &&
74 - test $(git diff --name-only --ita-invisible-in-index -- nitfol | wc -l) = 1
73 + test $(git diff --name-only -- nitfol | wc -l) = 1
74 '
75
76 test_expect_success 'can commit with an unrelated i-t-a entry in index' '
@@ -99,13 +98,13 @@ test_expect_success 'cache-tree invalidates i-t-a paths' '
98
99 : >dir/bar &&
100 git add -N dir/bar &&
102 - git diff --cached --name-only >actual &&
101 + git diff --name-only >actual &&
102 echo dir/bar >expect &&
103 test_cmp expect actual &&
104
105 git write-tree >/dev/null &&
106
108 - git diff --cached --name-only >actual &&
107 + git diff --name-only >actual &&
108 echo dir/bar >expect &&
109 test_cmp expect actual
110 '
@@ -186,7 +185,19 @@ test_expect_success 'rename detection finds the right names' '
185 cat >expected.3 <<-EOF &&
186 2 .R N... 100644 100644 100644 $hash $hash R100 third first
187 EOF
189 - test_cmp expected.3 actual.3
188 + test_cmp expected.3 actual.3 &&
189 +
190 + git diff --stat >actual.4 &&
191 + cat >expected.4 <<-EOF &&
192 + first => third | 0
193 + 1 file changed, 0 insertions(+), 0 deletions(-)
194 + EOF
195 + test_cmp expected.4 actual.4 &&
196 +
197 + git diff --cached --stat >actual.5 &&
198 + : >expected.5 &&
199 + test_cmp expected.5 actual.5
200 +
201 )
202 '
203
@@ -222,5 +233,16 @@ test_expect_success 'double rename detection in status' '
233 )
234 '
235
225 -test_done
236 +test_expect_success 'diff-files/diff-cached shows ita as new/not-new files' '
237 + git reset --hard &&
238 + echo new >new-ita &&
239 + git add -N new-ita &&
240 + git diff --summary >actual &&
241 + echo " create mode 100644 new-ita" >expected &&
242 + test_cmp expected actual &&
243 + git diff --cached --summary >actual2 &&
244 + : >expected2 &&
245 + test_cmp expected2 actual2
246 +'
247
248 +test_done
t/t4011-diff-symlink.sh
+6 -4
@@ -139,11 +139,13 @@ test_expect_success SYMLINKS 'setup symlinks with attributes' '
139 test_expect_success SYMLINKS 'symlinks do not respect userdiff config by path' '
140 cat >expect <<-\EOF &&
141 diff --git a/file.bin b/file.bin
142 - index e69de29..d95f3ad 100644
143 - Binary files a/file.bin and b/file.bin differ
142 + new file mode 100644
143 + index 0000000..d95f3ad
144 + Binary files /dev/null and b/file.bin differ
145 diff --git a/link.bin b/link.bin
145 - index e69de29..dce41ec 120000
146 - --- a/link.bin
146 + new file mode 120000
147 + index 0000000..dce41ec
148 + --- /dev/null
149 +++ b/link.bin
150 @@ -0,0 +1 @@
151 +file.bin