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[PATCH v1 08/11] restore: support --patch




git-restore is different from git-checkout that it only restores the
worktree by default, not both worktree and index. add--interactive
needs some update to support this mode.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
---
 builtin/checkout.c        |  5 ++--
 git-add--interactive.perl | 52 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 55 insertions(+), 2 deletions(-)

diff --git a/builtin/checkout.c b/builtin/checkout.c
index f06439dbeb..73de110d42 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -436,9 +436,10 @@ static int checkout_paths(const struct checkout_opts *opts,
 			patch_mode = "--patch=checkout";
 		else if (opts->checkout_index && !opts->checkout_worktree)
 			patch_mode = "--patch=reset";
+		else if (!opts->checkout_index && opts->checkout_worktree)
+			patch_mode = "--patch=worktree";
 		else
-			die(_("'%s' with only '%s' is not currently supported"),
-			    "--patch", "--worktree");
+			BUG("either flag must have been set");
 		return run_add_interactive(revision, patch_mode, &opts->pathspec);
 	}
 
diff --git a/git-add--interactive.perl b/git-add--interactive.perl
index 20eb81cc92..3dfb3629c9 100755
--- a/git-add--interactive.perl
+++ b/git-add--interactive.perl
@@ -149,6 +149,20 @@ sub colored {
 		FILTER => undef,
 		IS_REVERSE => 0,
 	},
+	'worktree_head' => {
+		DIFF => 'diff-index -p',
+		APPLY => sub { apply_patch 'apply -R', @_ },
+		APPLY_CHECK => 'apply -R',
+		FILTER => undef,
+		IS_REVERSE => 1,
+	},
+	'worktree_nothead' => {
+		DIFF => 'diff-index -R -p',
+		APPLY => sub { apply_patch 'apply', @_ },
+		APPLY_CHECK => 'apply',
+		FILTER => undef,
+		IS_REVERSE => 0,
+	},
 );
 
 $patch_mode = 'stage';
@@ -1049,6 +1063,12 @@ sub color_diff {
 marked for discarding."),
 	checkout_nothead => N__(
 "If the patch applies cleanly, the edited hunk will immediately be
+marked for applying."),
+	worktree_head => N__(
+"If the patch applies cleanly, the edited hunk will immediately be
+marked for discarding."),
+	worktree_nothead => N__(
+"If the patch applies cleanly, the edited hunk will immediately be
 marked for applying."),
 );
 
@@ -1259,6 +1279,18 @@ sub edit_hunk_loop {
 n - do not apply this hunk to index and worktree
 q - quit; do not apply this hunk or any of the remaining ones
 a - apply this hunk and all later hunks in the file
+d - do not apply this hunk or any of the later hunks in the file"),
+	worktree_head => N__(
+"y - discard this hunk from worktree
+n - do not discard this hunk from worktree
+q - quit; do not discard this hunk or any of the remaining ones
+a - discard this hunk and all later hunks in the file
+d - do not discard this hunk or any of the later hunks in the file"),
+	worktree_nothead => N__(
+"y - apply this hunk to worktree
+n - do not apply this hunk to worktree
+q - quit; do not apply this hunk or any of the remaining ones
+a - apply this hunk and all later hunks in the file
 d - do not apply this hunk or any of the later hunks in the file"),
 );
 
@@ -1421,6 +1453,16 @@ sub display_hunks {
 		deletion => N__("Apply deletion to index and worktree [y,n,q,a,d%s,?]? "),
 		hunk => N__("Apply this hunk to index and worktree [y,n,q,a,d%s,?]? "),
 	},
+	worktree_head => {
+		mode => N__("Discard mode change from worktree [y,n,q,a,d%s,?]? "),
+		deletion => N__("Discard deletion from worktree [y,n,q,a,d%s,?]? "),
+		hunk => N__("Discard this hunk from worktree [y,n,q,a,d%s,?]? "),
+	},
+	worktree_nothead => {
+		mode => N__("Apply mode change to worktree [y,n,q,a,d%s,?]? "),
+		deletion => N__("Apply deletion to worktree [y,n,q,a,d%s,?]? "),
+		hunk => N__("Apply this hunk to worktree [y,n,q,a,d%s,?]? "),
+	},
 );
 
 sub patch_update_file {
@@ -1756,6 +1798,16 @@ sub process_args {
 						       'checkout_head' : 'checkout_nothead');
 					$arg = shift @ARGV or die __("missing --");
 				}
+			} elsif ($1 eq 'worktree') {
+				$arg = shift @ARGV or die __("missing --");
+				if ($arg eq '--') {
+					$patch_mode = 'checkout_index';
+				} else {
+					$patch_mode_revision = $arg;
+					$patch_mode = ($arg eq 'HEAD' ?
+						       'worktree_head' : 'worktree_nothead');
+					$arg = shift @ARGV or die __("missing --");
+				}
 			} elsif ($1 eq 'stage' or $1 eq 'stash') {
 				$patch_mode = $1;
 				$arg = shift @ARGV or die __("missing --");
-- 
2.21.0.rc1.337.gdf7f8d0522