From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS31976 209.132.180.0/23 X-Spam-Status: No, score=-3.0 required=3.0 tests=AWL,BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD shortcircuit=no autolearn=ham autolearn_force=no version=3.4.0 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by dcvr.yhbt.net (Postfix) with ESMTP id CE3381F576 for ; Tue, 6 Mar 2018 10:18:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932604AbeCFKSC (ORCPT ); Tue, 6 Mar 2018 05:18:02 -0500 Received: from smtp-out-5.talktalk.net ([62.24.135.69]:53518 "EHLO smtp-out-5.talktalk.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750907AbeCFKSB (ORCPT ); Tue, 6 Mar 2018 05:18:01 -0500 Received: from lindisfarne.localdomain ([92.22.16.137]) by smtp.talktalk.net with SMTP id t9fNelwjTlYtpt9fSexEqA; Tue, 06 Mar 2018 10:17:59 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=talktalk.net; s=cmr1711; t=1520331479; bh=uxGVUCXRYZ1WH0xcdGvHn9AXmdfq5f3nK/Pt0fFEW2k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:Reply-To; b=Yqo9alpbDSN4s99LMG7UUMUbt2bzs5gMNiCecN/tvVZqCUKe9kauWfZ7Zcllh/Oji 4Q+GID60uE3BlPlRicJR8U9ig3txhYFDo3uzJF5zzlpmS6pW99KA7Jj7Vd0puk0VYn tWQYzKO/Udd+KQjz/kKSLBBPgoYUglcBo7jxfkNw= X-Originating-IP: [92.22.16.137] X-Spam: 0 X-OAuthority: v=2.3 cv=JZeSU3CV c=1 sm=1 tr=0 a=nWy375ASyxHoIYnPohIYMA==:117 a=nWy375ASyxHoIYnPohIYMA==:17 a=evINK-nbAAAA:8 a=XbrJMvtceDulOWkQ35YA:9 a=7Zwj6sZBwVKJAoWSPKxL6X1jA+E=:19 a=Z6mpID65kLO5oUel:21 a=WM8Ajtb4xZ-QBW1L:21 a=RfR_gqz1fSpA9VikTjo0:22 From: Phillip Wood To: Git Mailing List Cc: Junio C Hamano , Gustavo Leite , Phillip Wood Subject: [PATCH v2 1/3] add -p: select individual hunk lines Date: Tue, 6 Mar 2018 10:17:48 +0000 Message-Id: <20180306101750.18794-2-phillip.wood@talktalk.net> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180306101750.18794-1-phillip.wood@talktalk.net> References: <20180219113619.26566-1-phillip.wood@talktalk.net> <20180306101750.18794-1-phillip.wood@talktalk.net> Reply-To: Phillip Wood X-CMAE-Envelope: MS4wfHYtYQHf2D2GAnHM+e11lwl8xMn9Crl2cm1YQUWX/LAbZ/AhaaSzdkNGr5+k+/ko/oJc7hZ8tZpuibDZJod/rl6u6fnMyUzk+nL/NocA0xjhi98qXgr2 deig4AhCdeBwu+nqpmT5/K8WECR5hZQhLPu+jiR3+1bHE1lDm12UwcMshYXknsw5m35I+cp6KOXmt2RldOLGEladkklhM1pQApuf2mEcOrupTcGAXnrNuHQv oQkLkAaJ9UeR/2i0vT6OtiWskmM1f36ZfoFnqiosNlbRNfKwThc3NsGGYdwHAifN Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org From: Phillip Wood When I end up editing hunks it is almost always because I want to stage a subset of the lines in the hunk. Doing this by editing the hunk is inconvenient and error prone (especially so if the patch is going to be reversed before being applied). Instead offer an option for add -p to stage individual lines. When the user presses 'l' the hunk is redrawn with labels by the insertions and deletions and they are prompted to enter a list of the lines they wish to stage. Ranges of lines may be specified using 'a-b' where either 'a' or 'b' may be omitted to mean all lines from 'a' to the end of the hunk or all lines from 1 upto and including 'b'. Signed-off-by: Phillip Wood --- Documentation/git-add.txt | 7 +++ git-add--interactive.perl | 143 +++++++++++++++++++++++++++++++++++++++++++++ t/t3701-add-interactive.sh | 65 +++++++++++++++++++++ 3 files changed, 215 insertions(+) diff --git a/Documentation/git-add.txt b/Documentation/git-add.txt index d50fa339dc..ad33fda9a2 100644 --- a/Documentation/git-add.txt +++ b/Documentation/git-add.txt @@ -332,10 +332,17 @@ patch:: J - leave this hunk undecided, see next hunk k - leave this hunk undecided, see previous undecided hunk K - leave this hunk undecided, see previous hunk + l - select hunk lines to use s - split the current hunk into smaller hunks e - manually edit the current hunk ? - print help + +If you press "l" then the hunk will be reprinted with each insertion +or deletion labelled with a number and you will be prompted to enter +which lines you wish to select. Individual line numbers should be +separated by a space or comma, to specify a range of lines use a dash +between them. ++ After deciding the fate for all hunks, if there is any hunk that was chosen, the index is updated with the selected hunks. + diff --git a/git-add--interactive.perl b/git-add--interactive.perl index f83e7450ad..a273b41e95 100755 --- a/git-add--interactive.perl +++ b/git-add--interactive.perl @@ -1013,6 +1013,133 @@ sub color_diff { } @_; } +sub label_hunk_lines { + local $_; + my $hunk = shift; + my $i = 0; + my $labels = [ map { /^[-+]/ ? ++$i : 0 } @{$hunk->{TEXT}} ]; + if ($i > 1) { + @{$hunk}{qw(LABELS MAX_LABEL)} = ($labels, $i); + return 1; + } + return 0; +} + +sub select_hunk_lines { + my ($hunk, $selected) = @_; + my ($text, $labels) = @{$hunk}{qw(TEXT LABELS)}; + my ($i, $o_cnt, $n_cnt) = (0, 0, 0); + my ($push_eol, @newtext); + # Lines with this mode will become context lines if they are + # not selected + my $context_mode = $patch_mode_flavour{IS_REVERSE} ? '+' : '-'; + for $i (1..$#{$text}) { + my $mode = substr($text->[$i], 0, 1); + if ($mode eq '\\') { + push @newtext, $text->[$i] if ($push_eol); + undef $push_eol; + } elsif ($labels->[$i] and $selected->[$labels->[$i]]) { + push @newtext, $text->[$i]; + if ($mode eq '+') { + $n_cnt++; + } else { + $o_cnt++; + } + $push_eol = 1; + } elsif ($mode eq ' ' or $mode eq $context_mode) { + push @newtext, ' ' . substr($text->[$i], 1); + $o_cnt++; $n_cnt++; + $push_eol = 1; + } else { + undef $push_eol; + } + } + my ($o_ofs, $orig_o_cnt, $n_ofs, $orig_n_cnt) = + parse_hunk_header($text->[0]); + unshift @newtext, format_hunk_header($o_ofs, $o_cnt, $n_ofs, $n_cnt); + my $newhunk = { + TEXT => \@newtext, + DISPLAY => [ color_diff(@newtext) ], + OFS_DELTA => $orig_o_cnt - $orig_n_cnt - $o_cnt + $n_cnt, + TYPE => $hunk->{TYPE}, + USE => 1, + }; + # If this hunk has previously been edited add the offset delta + # of the old hunk to get the real delta from the original + # hunk. + if ($hunk->{OFS_DELTA}) { + $newhunk->{OFS_DELTA} += $hunk->{OFS_DELTA}; + } + return $newhunk; +} + +sub check_hunk_label { + my ($max_label, $label) = ($_[0]->{MAX_LABEL}, $_[1]); + if ($label < 1 or $label > $max_label) { + error_msg sprintf(__("invalid hunk line '%d'\n"), $label); + return 0; + } + return 1; +} + +sub parse_hunk_selection { + local $_; + my ($hunk, $line) = @_; + my $max_label = $hunk->{MAX_LABEL}; + my @selected = (0) x ($max_label + 1); + my @fields = split(/[,\s]+/, $line); + for (@fields) { + if (/^([0-9]*)-([0-9]*)$/) { + if ($1 eq '' and $2 eq '') { + error_msg __("range '-' missing upper or lower bound\n"); + return undef; + } + my $lo = $1 eq '' ? 1 : $1; + my $hi = $2 eq '' ? $max_label : $2; + check_hunk_label($hunk, $lo) or return undef; + check_hunk_label($hunk, $hi) or return undef; + if ($hi < $lo) { + ($lo, $hi) = ($hi, $lo); + } + @selected[$lo..$hi] = (1) x (1 + $hi - $lo); + } elsif (/^([0-9]+)$/) { + check_hunk_label($hunk, $1) or return undef; + $selected[$1] = 1; + } else { + error_msg sprintf(__("invalid hunk line '%s'\n"), $_); + return undef; + } + } + return \@selected; +} + +sub display_hunk_lines { + my ($display, $labels, $max_label) = + @{$_[0]}{qw(DISPLAY LABELS MAX_LABEL)}; + my $width = int(log($max_label) / log(10)) + 1; + my $padding = ' ' x ($width + 1); + for my $i (0..$#{$display}) { + if ($labels->[$i]) { + printf '%*d %s', $width, $labels->[$i], $display->[$i]; + } else { + print $padding . $display->[$i]; + } + } +} + +sub select_lines_loop { + my $hunk = shift; + display_hunk_lines($hunk); + my $selection = undef; + until (defined $selection) { + print colored $prompt_color, __("select lines? "); + my $text = ; + defined $text and $text =~ /\S/ or return undef; + $selection = parse_hunk_selection($hunk, $text); + } + return select_hunk_lines($hunk, $selection); +} + my %edit_hunk_manually_modes = ( stage => N__( "If the patch applies cleanly, the edited hunk will immediately be @@ -1255,6 +1382,7 @@ j - leave this hunk undecided, see next undecided hunk J - leave this hunk undecided, see next hunk k - leave this hunk undecided, see previous undecided hunk K - leave this hunk undecided, see previous hunk +l - select hunk lines to use s - split the current hunk into smaller hunks e - manually edit the current hunk ? - print help @@ -1471,6 +1599,9 @@ sub patch_update_file { if ($hunk[$ix]{TYPE} eq 'hunk') { $other .= ',e'; } + if (label_hunk_lines($hunk[$ix])) { + $other .= ',l'; + } for (@{$hunk[$ix]{DISPLAY}}) { print; } @@ -1610,6 +1741,18 @@ sub patch_update_file { next; } } + elsif ($line =~ /^l/) { + unless ($other =~ /l/) { + error_msg __("Cannot select line by line\n"); + next; + } + my $newhunk = select_lines_loop($hunk[$ix]); + if ($newhunk) { + splice @hunk, $ix, 1, $newhunk; + } else { + next; + } + } elsif ($other =~ /s/ && $line =~ /^s/) { my @split = split_hunk($hunk[$ix]{TEXT}, $hunk[$ix]{DISPLAY}); if (1 < @split) { diff --git a/t/t3701-add-interactive.sh b/t/t3701-add-interactive.sh index a9a9478a29..65c8c3354b 100755 --- a/t/t3701-add-interactive.sh +++ b/t/t3701-add-interactive.sh @@ -360,6 +360,63 @@ test_expect_failure 'split hunk "add -p (no, yes, edit)"' ' ! grep "^+31" actual ' +test_expect_success 'setup expected diff' ' + cat >expected <<-\EOF + diff --git a/test b/test + index 0889435..341cc6b 100644 + --- a/test + +++ b/test + @@ -1,6 +1,9 @@ + +5 + 10 + 20 + +21 + 30 + 40 + 50 + 60 + +61 + \ No newline at end of file + EOF +' + +test_expect_success 'can stage individual lines of patch' ' + git reset && + printf 61 >>test && + printf "%s\n" l "-2 4" | + EDITOR=: git add -p 2>error && + test_must_be_empty error && + git diff --cached HEAD >actual && + diff_cmp expected actual +' + +test_expect_success 'setup expected diff' ' + cat >expected <<-\EOF + diff --git a/test b/test + index 0889435..cc6163b 100644 + --- a/test + +++ b/test + @@ -1,6 +1,8 @@ + +5 + 10 + 20 + 30 + 40 + 50 + 60 + +61 + \ No newline at end of file + EOF +' + +test_expect_success 'can reset individual lines of patch' ' + printf "%s\n" l 2 | + EDITOR=: git reset -p 2>error && + test_must_be_empty error && + git diff --cached HEAD >actual && + diff_cmp expected actual +' + test_expect_success 'patch mode ignores unmerged entries' ' git reset --hard && test_commit conflict && @@ -576,4 +633,12 @@ test_expect_success 'add -p patch editing works with pathological context lines' test_cmp expected-2 actual ' +test_expect_success 'add -p selecting lines works with pathological context lines' ' + git reset && + printf "%s\n" l 2 y | + GIT_EDITOR=./editor git add -p && + git cat-file blob :a >actual && + test_cmp expected-2 actual +' + test_done -- 2.16.2