git/t/t2203-add-intent.sh

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#!/bin/sh
test_description='Intent to add'
. ./test-lib.sh
test_expect_success 'intent to add' '
test_commit 1 &&
git rm 1.t &&
echo hello >1.t &&
echo hello >file &&
echo hello >elif &&
git add -N file &&
git add elif &&
git add -N 1.t
'
test_expect_success 'git status' '
git status --porcelain | grep -v actual >actual &&
cat >expect <<-\EOF &&
DA 1.t
A elif
A file
EOF
test_cmp expect actual
'
test_expect_success 'git status with porcelain v2' '
git status --porcelain=v2 | grep -v "^?" >actual &&
nam1=$(echo 1 | git hash-object --stdin) &&
nam2=$(git hash-object elif) &&
cat >expect <<-EOF &&
1 DA N... 100644 000000 100644 $nam1 $ZERO_OID 1.t
1 A. N... 000000 100644 100644 $ZERO_OID $nam2 elif
1 .A N... 000000 000000 100644 $ZERO_OID $ZERO_OID file
EOF
test_cmp expect actual
'
test_expect_success 'check result of "add -N"' '
git ls-files -s file >actual &&
empty=$(git hash-object --stdin </dev/null) &&
echo "100644 $empty 0 file" >expect &&
test_cmp expect actual
'
test_expect_success 'intent to add is just an ordinary empty blob' '
git add -u &&
git ls-files -s file >actual &&
git ls-files -s elif | sed -e "s/elif/file/" >expect &&
test_cmp expect actual
'
test_expect_success 'intent to add does not clobber existing paths' '
git add -N file elif &&
empty=$(git hash-object --stdin </dev/null) &&
git ls-files -s >actual &&
! grep "$empty" actual
'
commit: ignore intent-to-add entries instead of refusing Originally, "git add -N" was introduced to help users from forgetting to add new files to the index before they ran "git commit -a". As an attempt to help them further so that they do not forget to say "-a", "git commit" to commit the index as-is was taught to error out, reminding the user that they may have forgotten to add the final contents of the paths before running the command. This turned out to be a false "safety" that is useless. If the user made changes to already tracked paths and paths added with "git add -N", and then ran "git add" to register the final contents of the paths added with "git add -N", "git commit" will happily create a commit out of the index, without including the local changes made to the already tracked paths. It was not a useful "safety" measure to prevent "forgetful" mistakes from happening. It turns out that this behaviour is not just a useless false "safety", but actively hurts use cases of "git add -N" that were discovered later and have become popular, namely, to tell Git to be aware of these paths added by "git add -N", so that commands like "git status" and "git diff" would include them in their output, even though the user is not interested in including them in the next commit they are going to make. Fix this ancient UI mistake, and instead make a commit from the index ignoring the paths added by "git add -N" without adding real contents. Based on the work by Nguyễn Thái Ngọc Duy, and helped by injection of sanity from Jonathan Nieder and others on the Git mailing list. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-07 19:55:48 +00:00
test_expect_success 'i-t-a entry is simply ignored' '
test_tick &&
git commit -a -m initial &&
git reset --hard &&
echo xyzzy >rezrov &&
echo frotz >nitfol &&
git add rezrov &&
git add -N nitfol &&
commit: ignore intent-to-add entries instead of refusing Originally, "git add -N" was introduced to help users from forgetting to add new files to the index before they ran "git commit -a". As an attempt to help them further so that they do not forget to say "-a", "git commit" to commit the index as-is was taught to error out, reminding the user that they may have forgotten to add the final contents of the paths before running the command. This turned out to be a false "safety" that is useless. If the user made changes to already tracked paths and paths added with "git add -N", and then ran "git add" to register the final contents of the paths added with "git add -N", "git commit" will happily create a commit out of the index, without including the local changes made to the already tracked paths. It was not a useful "safety" measure to prevent "forgetful" mistakes from happening. It turns out that this behaviour is not just a useless false "safety", but actively hurts use cases of "git add -N" that were discovered later and have become popular, namely, to tell Git to be aware of these paths added by "git add -N", so that commands like "git status" and "git diff" would include them in their output, even though the user is not interested in including them in the next commit they are going to make. Fix this ancient UI mistake, and instead make a commit from the index ignoring the paths added by "git add -N" without adding real contents. Based on the work by Nguyễn Thái Ngọc Duy, and helped by injection of sanity from Jonathan Nieder and others on the Git mailing list. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-07 19:55:48 +00:00
git commit -m second &&
test $(git ls-tree HEAD -- nitfol | wc -l) = 0 &&
test $(git diff --name-only HEAD -- nitfol | wc -l) = 1 &&
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>
2018-05-26 12:08:44 +00:00
test $(git diff --name-only -- nitfol | wc -l) = 1
'
test_expect_success 'can commit with an unrelated i-t-a entry in index' '
git reset --hard &&
commit: ignore intent-to-add entries instead of refusing Originally, "git add -N" was introduced to help users from forgetting to add new files to the index before they ran "git commit -a". As an attempt to help them further so that they do not forget to say "-a", "git commit" to commit the index as-is was taught to error out, reminding the user that they may have forgotten to add the final contents of the paths before running the command. This turned out to be a false "safety" that is useless. If the user made changes to already tracked paths and paths added with "git add -N", and then ran "git add" to register the final contents of the paths added with "git add -N", "git commit" will happily create a commit out of the index, without including the local changes made to the already tracked paths. It was not a useful "safety" measure to prevent "forgetful" mistakes from happening. It turns out that this behaviour is not just a useless false "safety", but actively hurts use cases of "git add -N" that were discovered later and have become popular, namely, to tell Git to be aware of these paths added by "git add -N", so that commands like "git status" and "git diff" would include them in their output, even though the user is not interested in including them in the next commit they are going to make. Fix this ancient UI mistake, and instead make a commit from the index ignoring the paths added by "git add -N" without adding real contents. Based on the work by Nguyễn Thái Ngọc Duy, and helped by injection of sanity from Jonathan Nieder and others on the Git mailing list. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-07 19:55:48 +00:00
echo bozbar >rezrov &&
echo frotz >nitfol &&
git add rezrov &&
git add -N nitfol &&
git commit -m partial rezrov
'
test_expect_success 'can "commit -a" with an i-t-a entry' '
git reset --hard &&
: >nitfol &&
git add -N nitfol &&
git commit -a -m all
'
test_expect_success 'cache-tree invalidates i-t-a paths' '
git reset --hard &&
mkdir dir &&
: >dir/foo &&
git add dir/foo &&
git commit -m foo &&
: >dir/bar &&
git add -N dir/bar &&
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>
2018-05-26 12:08:44 +00:00
git diff --name-only >actual &&
echo dir/bar >expect &&
test_cmp expect actual &&
git write-tree >/dev/null &&
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>
2018-05-26 12:08:44 +00:00
git diff --name-only >actual &&
echo dir/bar >expect &&
test_cmp expect actual
'
cache-tree.c: fix i-t-a entry skipping directory updates sometimes Commit 3cf773e (cache-tree: fix writing cache-tree when CE_REMOVE is present - 2012-12-16) skips i-t-a entries when building trees objects from the index. Unfortunately it may skip too much. The code in question checks if an entry is an i-t-a one, then no tree entry will be written. But it does not take into account that directories can also be written with the same code. Suppose we have this in the index. a-file subdir/file1 subdir/file2 subdir/file3 the-last-file We write an entry for a-file as normal and move on to subdir/file1, where we realize the entry name for this level is simply just "subdir", write down an entry for "subdir" then jump three items ahead to the-last-file. That is what happens normally when the first file in subdir is not an i-t-a entry. If subdir/file1 is an i-t-a, because of the broken condition in this code, we still think "subdir" is an i-t-a file and not writing "subdir" down and jump to the-last-file. The result tree now only has two items: a-file and the-last-file. subdir should be there too (even though it only records two sub-entries, file2 and file3). If the i-t-a entry is subdir/file2 or subdir/file3, this is not a problem because we jump over them anyway. Which may explain why the bug is hidden for nearly four years. Fix it by making sure we only skip i-t-a entries when the entry in question is actual an index entry, not a directory. Reported-by: Yuri Kanivetsky <yuri.kanivetsky@gmail.com> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-16 05:06:26 +00:00
test_expect_success 'cache-tree does not ignore dir that has i-t-a entries' '
git init ita-in-dir &&
(
cd ita-in-dir &&
mkdir 2 &&
for f in 1 2/1 2/2 3
do
echo "$f" >"$f"
done &&
git add 1 2/2 3 &&
git add -N 2/1 &&
git commit -m committed &&
git ls-tree -r HEAD >actual &&
grep 2/2 actual
)
'
test_expect_success 'cache-tree does skip dir that becomes empty' '
rm -fr ita-in-dir &&
git init ita-in-dir &&
(
cd ita-in-dir &&
mkdir -p 1/2/3 &&
echo 4 >1/2/3/4 &&
git add -N 1/2/3/4 &&
git write-tree >actual &&
echo $EMPTY_TREE >expected &&
test_cmp expected actual
)
'
test_expect_success 'commit: ita entries ignored in empty initial commit check' '
git init empty-initial-commit &&
(
cd empty-initial-commit &&
: >one &&
git add -N one &&
test_must_fail git commit -m nothing-new-here
)
'
test_expect_success 'commit: ita entries ignored in empty commit check' '
git init empty-subsequent-commit &&
(
cd empty-subsequent-commit &&
test_commit one &&
: >two &&
git add -N two &&
test_must_fail git commit -m nothing-new-here
)
'
test_expect_success 'rename detection finds the right names' '
git init rename-detection &&
(
cd rename-detection &&
echo contents >first &&
git add first &&
git commit -m first &&
mv first third &&
git add -N third &&
git status | grep -v "^?" >actual.1 &&
test_i18ngrep "renamed: *first -> third" actual.1 &&
git status --porcelain | grep -v "^?" >actual.2 &&
cat >expected.2 <<-\EOF &&
R first -> third
EOF
test_cmp expected.2 actual.2 &&
hash=$(git hash-object third) &&
git status --porcelain=v2 | grep -v "^?" >actual.3 &&
cat >expected.3 <<-EOF &&
2 .R N... 100644 100644 100644 $hash $hash R100 third first
EOF
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>
2018-05-26 12:08:44 +00:00
test_cmp expected.3 actual.3 &&
git diff --stat >actual.4 &&
cat >expected.4 <<-EOF &&
first => third | 0
1 file changed, 0 insertions(+), 0 deletions(-)
EOF
test_cmp expected.4 actual.4 &&
git diff --cached --stat >actual.5 &&
tests: use 'test_must_be_empty' instead of 'test_cmp <empty> <out>' Using 'test_must_be_empty' is shorter and more idiomatic than >empty && test_cmp empty out as it saves the creation of an empty file. Furthermore, sometimes the expected empty file doesn't have such a descriptive name like 'empty', and its creation is far away from the place where it's finally used for comparison (e.g. in 't7600-merge.sh', where two expected empty files are created in the 'setup' test, but are used only about 500 lines later). These cases were found by instrumenting 'test_cmp' to error out the test script when it's used to compare empty files, and then converted manually. Note that even after this patch there still remain a lot of cases where we use 'test_cmp' to check empty files: - Sometimes the expected output is not hard-coded in the test, but 'test_cmp' is used to ensure that two similar git commands produce the same output, and that output happens to be empty, e.g. the test 'submodule update --merge - ignores --merge for new submodules' in 't7406-submodule-update.sh'. - Repetitive common tasks, including preparing the expected results and running 'test_cmp', are often extracted into a helper function, and some of this helper's callsites expect no output. - For the same reason as above, the whole 'test_expect_success' block is within a helper function, e.g. in 't3070-wildmatch.sh'. - Or 'test_cmp' is invoked in a loop, e.g. the test 'cvs update (-p)' in 't9400-git-cvsserver-server.sh'. Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-19 21:57:25 +00:00
test_must_be_empty actual.5
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>
2018-05-26 12:08:44 +00:00
)
'
test_expect_success 'double rename detection in status' '
git init rename-detection-2 &&
(
cd rename-detection-2 &&
echo contents >first &&
git add first &&
git commit -m first &&
git mv first second &&
mv second third &&
git add -N third &&
git status | grep -v "^?" >actual.1 &&
test_i18ngrep "renamed: *first -> second" actual.1 &&
test_i18ngrep "renamed: *second -> third" actual.1 &&
git status --porcelain | grep -v "^?" >actual.2 &&
cat >expected.2 <<-\EOF &&
R first -> second
R second -> third
EOF
test_cmp expected.2 actual.2 &&
hash=$(git hash-object third) &&
git status --porcelain=v2 | grep -v "^?" >actual.3 &&
cat >expected.3 <<-EOF &&
2 R. N... 100644 100644 100644 $hash $hash R100 second first
2 .R N... 100644 100644 100644 $hash $hash R100 third second
EOF
test_cmp expected.3 actual.3
)
'
test_expect_success 'i-t-a files shown as new for "diff", "diff-files"; not-new for "diff --cached"' '
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>
2018-05-26 12:08:44 +00:00
git reset --hard &&
: >empty &&
content="foo" &&
echo "$content" >not-empty &&
hash_e=$(git hash-object empty) &&
hash_n=$(git hash-object not-empty) &&
cat >expect.diff_p <<-EOF &&
diff --git a/empty b/empty
new file mode 100644
index 0000000..$(git rev-parse --short $hash_e)
diff --git a/not-empty b/not-empty
new file mode 100644
index 0000000..$(git rev-parse --short $hash_n)
--- /dev/null
+++ b/not-empty
@@ -0,0 +1 @@
+$content
EOF
cat >expect.diff_s <<-EOF &&
create mode 100644 empty
create mode 100644 not-empty
EOF
cat >expect.diff_a <<-EOF &&
:000000 100644 0000000 0000000 A$(printf "\t")empty
:000000 100644 0000000 0000000 A$(printf "\t")not-empty
EOF
git add -N empty not-empty &&
git diff >actual &&
test_cmp expect.diff_p actual &&
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>
2018-05-26 12:08:44 +00:00
git diff --summary >actual &&
test_cmp expect.diff_s actual &&
git diff-files -p >actual &&
test_cmp expect.diff_p actual &&
git diff-files --abbrev >actual &&
test_cmp expect.diff_a actual &&
git diff --cached >actual &&
test_must_be_empty actual
'
test_expect_success '"diff HEAD" includes ita as new files' '
git reset --hard &&
echo new >new-ita &&
oid=$(git hash-object new-ita) &&
oid=$(git rev-parse --short $oid) &&
git add -N new-ita &&
git diff HEAD >actual &&
cat >expected <<-EOF &&
diff --git a/new-ita b/new-ita
new file mode 100644
index 0000000..$oid
--- /dev/null
+++ b/new-ita
@@ -0,0 +1 @@
+new
EOF
test_cmp expected actual
'
test_expect_success 'apply --intent-to-add' '
git reset --hard &&
echo new >new-ita &&
git add -N new-ita &&
git diff >expected &&
grep "new file" expected &&
git reset --hard &&
git apply --intent-to-add expected &&
git diff >actual &&
test_cmp expected actual
'
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>
2018-05-26 12:08:44 +00:00
test_done