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git/t/t3701-add-interactive.sh
Jeff King 24ab81ae4d add-interactive: handle deletion of empty files
Usually we show deletion as a big hunk deleting all of the
file's text. However, for files with no content, the diff
shows just the 'deleted file mode ...' line. This patch
cause "add -p" (and related commands) to recognize that line
and explicitly ask about deleting the file.

We only add the "stage this deletion" hunk for empty files,
since other files will already ask about the big content
deletion hunk. We could also change those files to simply
display "stage this deletion", but showing the actual
deleted content is probably what an interactive user wants.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-27 23:19:04 -07:00

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#!/bin/sh
test_description='add -i basic tests'
. ./test-lib.sh
if ! test_have_prereq PERL; then
say 'skipping git add -i tests, perl not available'
test_done
fi
test_expect_success 'setup (initial)' '
echo content >file &&
git add file &&
echo more >>file &&
echo lines >>file
'
test_expect_success 'status works (initial)' '
git add -i </dev/null >output &&
grep "+1/-0 *+2/-0 file" output
'
cat >expected <<EOF
new file mode 100644
index 0000000..d95f3ad
--- /dev/null
+++ b/file
@@ -0,0 +1 @@
+content
EOF
test_expect_success 'diff works (initial)' '
(echo d; echo 1) | git add -i >output &&
sed -ne "/new file/,/content/p" <output >diff &&
test_cmp expected diff
'
test_expect_success 'revert works (initial)' '
git add file &&
(echo r; echo 1) | git add -i &&
git ls-files >output &&
! grep . output
'
test_expect_success 'setup (commit)' '
echo baseline >file &&
git add file &&
git commit -m commit &&
echo content >>file &&
git add file &&
echo more >>file &&
echo lines >>file
'
test_expect_success 'status works (commit)' '
git add -i </dev/null >output &&
grep "+1/-0 *+2/-0 file" output
'
cat >expected <<EOF
index 180b47c..b6f2c08 100644
--- a/file
+++ b/file
@@ -1 +1,2 @@
baseline
+content
EOF
test_expect_success 'diff works (commit)' '
(echo d; echo 1) | git add -i >output &&
sed -ne "/^index/,/content/p" <output >diff &&
test_cmp expected diff
'
test_expect_success 'revert works (commit)' '
git add file &&
(echo r; echo 1) | git add -i &&
git add -i </dev/null >output &&
grep "unchanged *+3/-0 file" output
'
cat >expected <<EOF
EOF
cat >fake_editor.sh <<EOF
EOF
chmod a+x fake_editor.sh
test_set_editor "$(pwd)/fake_editor.sh"
test_expect_success 'dummy edit works' '
(echo e; echo a) | git add -p &&
git diff > diff &&
test_cmp expected diff
'
cat >patch <<EOF
@@ -1,1 +1,4 @@
this
+patch
-doesn't
apply
EOF
echo "#!$SHELL_PATH" >fake_editor.sh
cat >>fake_editor.sh <<\EOF
mv -f "$1" oldpatch &&
mv -f patch "$1"
EOF
chmod a+x fake_editor.sh
test_set_editor "$(pwd)/fake_editor.sh"
test_expect_success 'bad edit rejected' '
git reset &&
(echo e; echo n; echo d) | git add -p >output &&
grep "hunk does not apply" output
'
cat >patch <<EOF
this patch
is garbage
EOF
test_expect_success 'garbage edit rejected' '
git reset &&
(echo e; echo n; echo d) | git add -p >output &&
grep "hunk does not apply" output
'
cat >patch <<EOF
@@ -1,0 +1,0 @@
baseline
+content
+newcontent
+lines
EOF
cat >expected <<EOF
diff --git a/file b/file
index b5dd6c9..f910ae9 100644
--- a/file
+++ b/file
@@ -1,4 +1,4 @@
baseline
content
-newcontent
+more
lines
EOF
test_expect_success 'real edit works' '
(echo e; echo n; echo d) | git add -p &&
git diff >output &&
test_cmp expected output
'
if test "$(git config --bool core.filemode)" = false
then
say 'skipping filemode tests (filesystem does not properly support modes)'
else
test_set_prereq FILEMODE
fi
test_expect_success FILEMODE 'patch does not affect mode' '
git reset --hard &&
echo content >>file &&
chmod +x file &&
printf "n\\ny\\n" | git add -p &&
git show :file | grep content &&
git diff file | grep "new mode"
'
test_expect_success FILEMODE 'stage mode but not hunk' '
git reset --hard &&
echo content >>file &&
chmod +x file &&
printf "y\\nn\\n" | git add -p &&
git diff --cached file | grep "new mode" &&
git diff file | grep "+content"
'
test_expect_success FILEMODE 'stage mode and hunk' '
git reset --hard &&
echo content >>file &&
chmod +x file &&
printf "y\\ny\\n" | git add -p &&
git diff --cached file | grep "new mode" &&
git diff --cached file | grep "+content" &&
test -z "$(git diff file)"
'
# end of tests disabled when filemode is not usable
test_expect_success 'setup again' '
git reset --hard &&
test_chmod +x file &&
echo content >>file
'
# Write the patch file with a new line at the top and bottom
cat >patch <<EOF
index 180b47c..b6f2c08 100644
--- a/file
+++ b/file
@@ -1,2 +1,4 @@
+firstline
baseline
content
+lastline
EOF
# Expected output, similar to the patch but w/ diff at the top
cat >expected <<EOF
diff --git a/file b/file
index b6f2c08..61b9053 100755
--- a/file
+++ b/file
@@ -1,2 +1,4 @@
+firstline
baseline
content
+lastline
EOF
# Test splitting the first patch, then adding both
test_expect_success 'add first line works' '
git commit -am "clear local changes" &&
git apply patch &&
(echo s; echo y; echo y) | git add -p file &&
git diff --cached > diff &&
test_cmp expected diff
'
cat >expected <<EOF
diff --git a/empty b/empty
deleted file mode 100644
index e69de29..0000000
EOF
test_expect_success 'deleting an empty file' '
git reset --hard &&
> empty &&
git add empty &&
git commit -m empty &&
rm empty &&
echo y | git add -p empty &&
git diff --cached >diff &&
test_cmp expected diff
'
test_done