git-commit-vandalism/t/t2200-add-update.sh
Junio C Hamano 45c45e300b git add: start preparing for "git add <pathspec>..." to default to "-A"
When "git add subdir/" is run without "-u" or "-A" option, e.g.

    $ edit subdir/x
    $ create subdir/y
    $ rm subdir/z
    $ git add subdir/

the command does not notice removal of paths (e.g. subdir/z) from
the working tree.  This sometimes confuses new people, as arguably
"git add" is told to record the current state of "subdir/" as a
whole, not the current state of the paths that exist in the working
tree that matches that pathspec (the latter by definition excludes
the state of "subdir/z" because it does not exist in the working
tree).

Plan to eventually make "git add" pretend as if "-A" is given when
there is a pathspec on the command line.  When resolving a conflict
to remove a path, the current code tells you to "git rm $path", but
with such a change, you will be able to say "git add $path" (of
course you can do "git add -A $path" today).  That means that we can
simplify the advice messages given by "git status".  That all will
be in Git 2.0 or later, if we are going to do so.

For that transition to work, people need to learn either to say "git
add --no-all subdir/" when they want to ignore the removed paths
like "subdir/z", or to say "git add -A subdir/" when they want to
take the state of the directory as a whole.

"git add" without any argument will continue to be a no-op.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-08 23:26:56 -08:00

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#!/bin/sh
test_description='git add -u
This test creates a working tree state with three files:
top (previously committed, modified)
dir/sub (previously committed, modified)
dir/other (untracked)
and issues a git add -u with path limiting on "dir" to add
only the updates to dir/sub.
Also tested are "git add -u" without limiting, and "git add -u"
without contents changes, and other conditions'
. ./test-lib.sh
test_expect_success setup '
echo initial >check &&
echo initial >top &&
echo initial >foo &&
mkdir dir1 dir2 &&
echo initial >dir1/sub1 &&
echo initial >dir1/sub2 &&
echo initial >dir2/sub3 &&
git add check dir1 dir2 top foo &&
test_tick &&
git commit -m initial &&
echo changed >check &&
echo changed >top &&
echo changed >dir2/sub3 &&
rm -f dir1/sub1 &&
echo other >dir2/other
'
test_expect_success update '
git add -u dir1 dir2
'
test_expect_success 'update noticed a removal' '
test "$(git ls-files dir1/sub1)" = ""
'
test_expect_success 'update touched correct path' '
test "$(git diff-files --name-status dir2/sub3)" = ""
'
test_expect_success 'update did not touch other tracked files' '
test "$(git diff-files --name-status check)" = "M check" &&
test "$(git diff-files --name-status top)" = "M top"
'
test_expect_success 'update did not touch untracked files' '
test "$(git ls-files dir2/other)" = ""
'
test_expect_success 'cache tree has not been corrupted' '
git ls-files -s |
sed -e "s/ 0 / /" >expect &&
git ls-tree -r $(git write-tree) |
sed -e "s/ blob / /" >current &&
test_cmp expect current
'
test_expect_success 'update from a subdirectory' '
(
cd dir1 &&
echo more >sub2 &&
git add -u sub2
)
'
test_expect_success 'change gets noticed' '
test "$(git diff-files --name-status dir1)" = ""
'
test_expect_success SYMLINKS 'replace a file with a symlink' '
rm foo &&
ln -s top foo &&
git add -u -- foo
'
test_expect_success 'add everything changed' '
git add -u &&
test -z "$(git diff-files)"
'
test_expect_success 'touch and then add -u' '
touch check &&
git add -u &&
test -z "$(git diff-files)"
'
test_expect_success 'touch and then add explicitly' '
touch check &&
git add check &&
test -z "$(git diff-files)"
'
test_expect_success 'add -n -u should not add but just report' '
(
echo "add '\''check'\''" &&
echo "remove '\''top'\''"
) >expect &&
before=$(git ls-files -s check top) &&
echo changed >>check &&
rm -f top &&
git add -n -u >actual &&
after=$(git ls-files -s check top) &&
test "$before" = "$after" &&
test_i18ncmp expect actual
'
test_expect_success 'add -u resolves unmerged paths' '
git reset --hard &&
one=$(echo 1 | git hash-object -w --stdin) &&
two=$(echo 2 | git hash-object -w --stdin) &&
three=$(echo 3 | git hash-object -w --stdin) &&
{
for path in path1 path2
do
echo "100644 $one 1 $path"
echo "100644 $two 2 $path"
echo "100644 $three 3 $path"
done
echo "100644 $one 1 path3"
echo "100644 $one 1 path4"
echo "100644 $one 3 path5"
echo "100644 $one 3 path6"
} |
git update-index --index-info &&
echo 3 >path1 &&
echo 2 >path3 &&
echo 2 >path5 &&
# Fail to explicitly resolve removed paths with "git add"
test_must_fail git add --no-all path4 &&
test_must_fail git add --no-all path6 &&
# "add -u" should notice removals no matter what stages
# the index entries are in.
git add -u &&
git ls-files -s path1 path2 path3 path4 path5 path6 >actual &&
{
echo "100644 $three 0 path1"
echo "100644 $two 0 path3"
echo "100644 $two 0 path5"
} >expect &&
test_cmp expect actual
'
test_expect_success '"add -u non-existent" should fail' '
test_must_fail git add -u non-existent &&
! (git ls-files | grep "non-existent")
'
test_done