checkout: introduce --{,no-}overlay option
Currently 'git checkout' is defined as an overlay operation, which
means that if in 'git checkout <tree-ish> -- [<pathspec>]' we have an
entry in the index that matches <pathspec>, but that doesn't exist in
<tree-ish>, that entry will not be removed from the index or the
working tree.
Introduce a new --{,no-}overlay option, which allows using 'git
checkout' in non-overlay mode, thus removing files from the working
tree if they do not exist in <tree-ish> but match <pathspec>.
Note that 'git checkout -p <tree-ish> -- [<pathspec>]' already works
this way, so no changes are needed for the patch mode. We disallow
'git checkout --overlay -p' to avoid confusing users who would expect
to be able to force overlay mode in 'git checkout -p' this way.
Untracked files are not affected by this change, so 'git checkout
--no-overlay HEAD -- untracked' will not remove untracked from the
working tree. This is so e.g. 'git checkout --no-overlay HEAD -- dir/'
doesn't delete all untracked files in dir/, but rather just resets the
state of files that are known to git.
Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-01-09 00:52:24 +03:00
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#!/bin/sh
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test_description='checkout --no-overlay <tree-ish> -- <pathspec>'
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. ./test-lib.sh
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test_expect_success 'setup' '
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git commit --allow-empty -m "initial"
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'
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test_expect_success 'checkout --no-overlay deletes files not in <tree-ish>' '
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>file &&
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mkdir dir &&
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>dir/file1 &&
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git add file dir/file1 &&
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git checkout --no-overlay HEAD -- file &&
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test_path_is_missing file &&
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test_path_is_file dir/file1
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'
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test_expect_success 'checkout --no-overlay removing last file from directory' '
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git checkout --no-overlay HEAD -- dir/file1 &&
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test_path_is_missing dir
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'
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test_expect_success 'checkout -p --overlay is disallowed' '
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test_must_fail git checkout -p --overlay HEAD 2>actual &&
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test_i18ngrep "fatal: -p and --overlay are mutually exclusive" actual
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'
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test_expect_success '--no-overlay --theirs with D/F conflict deletes file' '
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test_commit file1 file1 &&
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test_commit file2 file2 &&
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git rm --cached file1 &&
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echo 1234 >file1 &&
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F1=$(git rev-parse HEAD:file1) &&
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F2=$(git rev-parse HEAD:file2) &&
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{
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echo "100644 $F1 1 file1" &&
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echo "100644 $F2 2 file1"
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} | git update-index --index-info &&
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test_path_is_file file1 &&
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git checkout --theirs --no-overlay -- file1 &&
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test_path_is_missing file1
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'
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2020-08-22 11:57:59 +03:00
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test_expect_success 'wildcard pathspec matches file in subdirectory' '
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git reset --hard &&
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mkdir subdir &&
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test_commit file3-1 subdir/file3 &&
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test_commit file3-2 subdir/file3 &&
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git checkout --no-overlay file3-1 "*file3" &&
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echo file3-1 >expect &&
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test_path_is_file subdir/file3 &&
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test_cmp expect subdir/file3
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'
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checkout: introduce --{,no-}overlay option
Currently 'git checkout' is defined as an overlay operation, which
means that if in 'git checkout <tree-ish> -- [<pathspec>]' we have an
entry in the index that matches <pathspec>, but that doesn't exist in
<tree-ish>, that entry will not be removed from the index or the
working tree.
Introduce a new --{,no-}overlay option, which allows using 'git
checkout' in non-overlay mode, thus removing files from the working
tree if they do not exist in <tree-ish> but match <pathspec>.
Note that 'git checkout -p <tree-ish> -- [<pathspec>]' already works
this way, so no changes are needed for the patch mode. We disallow
'git checkout --overlay -p' to avoid confusing users who would expect
to be able to force overlay mode in 'git checkout -p' this way.
Untracked files are not affected by this change, so 'git checkout
--no-overlay HEAD -- untracked' will not remove untracked from the
working tree. This is so e.g. 'git checkout --no-overlay HEAD -- dir/'
doesn't delete all untracked files in dir/, but rather just resets the
state of files that are known to git.
Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-01-09 00:52:24 +03:00
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test_done
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