git-commit-vandalism/t/t7105-reset-patch.sh
Nika Layzell 0a8e3036a3 reset: parse rev as tree-ish in patch mode
Since 2f328c3d ("reset $sha1 $pathspec: require $sha1 only to be
treeish", 2013-01-14), we allowed "git reset $object -- $path" to reset
individual paths that match the pathspec to take the blob from a tree
object, not necessarily a commit, while the form to reset the tip of the
current branch to some other commit still must be given a commit.

Like resetting with paths, "git reset --patch" does not update HEAD, and
need not require a commit. The path-filtered form, "git reset --patch
$object -- $pathspec", has accepted a tree-ish since 2f328c3d.

"git reset --patch" is documented as accepting a <tree-ish> since
bf44142f ("reset: update documentation to require only tree-ish with
paths", 2013-01-16). Documentation changes are not required.

Loosen the restriction that requires a commit for the unfiltered "git
reset --patch $object".

Signed-off-by: Nika Layzell <nika@thelayzells.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-25 11:01:22 +09:00

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#!/bin/sh
test_description='git reset --patch'
. ./lib-patch-mode.sh
test_expect_success PERL 'setup' '
mkdir dir &&
echo parent > dir/foo &&
echo dummy > bar &&
git add dir &&
git commit -m initial &&
test_tick &&
test_commit second dir/foo head &&
set_and_save_state bar bar_work bar_index &&
save_head
'
# note: bar sorts before foo, so the first 'n' is always to skip 'bar'
test_expect_success PERL 'saying "n" does nothing' '
set_and_save_state dir/foo work work &&
test_write_lines n n | git reset -p &&
verify_saved_state dir/foo &&
verify_saved_state bar
'
test_expect_success PERL 'git reset -p' '
test_write_lines n y | git reset -p >output &&
verify_state dir/foo work head &&
verify_saved_state bar &&
test_i18ngrep "Unstage" output
'
test_expect_success PERL 'git reset -p HEAD^' '
test_write_lines n y | git reset -p HEAD^ >output &&
verify_state dir/foo work parent &&
verify_saved_state bar &&
test_i18ngrep "Apply" output
'
test_expect_success PERL 'git reset -p HEAD^^{tree}' '
test_write_lines n y | git reset -p HEAD^^{tree} >output &&
verify_state dir/foo work parent &&
verify_saved_state bar &&
test_i18ngrep "Apply" output
'
test_expect_success PERL 'git reset -p HEAD^:dir/foo (blob fails)' '
set_and_save_state dir/foo work work &&
test_must_fail git reset -p HEAD^:dir/foo &&
verify_saved_state dir/foo &&
verify_saved_state bar
'
test_expect_success PERL 'git reset -p aaaaaaaa (unknown fails)' '
set_and_save_state dir/foo work work &&
test_must_fail git reset -p aaaaaaaa &&
verify_saved_state dir/foo &&
verify_saved_state bar
'
# The idea in the rest is that bar sorts first, so we always say 'y'
# first and if the path limiter fails it'll apply to bar instead of
# dir/foo. There's always an extra 'n' to reject edits to dir/foo in
# the failure case (and thus get out of the loop).
test_expect_success PERL 'git reset -p dir' '
set_state dir/foo work work &&
test_write_lines y n | git reset -p dir &&
verify_state dir/foo work head &&
verify_saved_state bar
'
test_expect_success PERL 'git reset -p -- foo (inside dir)' '
set_state dir/foo work work &&
test_write_lines y n | (cd dir && git reset -p -- foo) &&
verify_state dir/foo work head &&
verify_saved_state bar
'
test_expect_success PERL 'git reset -p HEAD^ -- dir' '
test_write_lines y n | git reset -p HEAD^ -- dir &&
verify_state dir/foo work parent &&
verify_saved_state bar
'
test_expect_success PERL 'none of this moved HEAD' '
verify_saved_head
'
test_done