difftool: Wrap long lines for readability

Keep everything within 80 columns.  Wrap the user-facing messages too.

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/git-difftool.perl b/git-difftool.perl
index 92f4907bbc1ba4886a5cfcf59b760457a9191a1f..1ec676aacbe9bf8f7e3eb089177c98ef8fd0a3ae 100755 (executable)
--- a/git-difftool.perl
+++ b/git-difftool.perl
@@ -93,15 +93,22 @@ sub print_tool_help
                }
        }
 
-       print "'git difftool --tool=<tool>' may be set to one of the following:\n";
+       print << 'EOF';
+'git difftool --tool=<tool>' may be set to one of the following:
+EOF
        print "\t$_\n" for (sort(@found));
 
-       print "\nThe following tools are valid, but not currently available:\n";
+       print << 'EOF';
+
+The following tools are valid, but not currently available:
+EOF
        print "\t$_\n" for (sort(@notfound));
 
-       print "\nNOTE: Some of the tools listed above only work in a windowed\n";
-       print "environment. If run in a terminal-only session, they will fail.\n";
+       print << 'EOF';
 
+NOTE: Some of the tools listed above only work in a windowed
+environment. If run in a terminal-only session, they will fail.
+EOF
        exit(0);
 }
 
@@ -114,8 +121,11 @@ sub setup_dir_diff
        # if $GIT_DIR and $GIT_WORK_TREE are set in ENV, they are actually used
        # by Git->repository->command*.
        my $repo_path = $repo->repo_path();
-       my $diffrepo = Git->repository(Repository => $repo_path, WorkingCopy => $workdir);
-       my $diffrtn = $diffrepo->command_oneline('diff', '--raw', '--no-abbrev', '-z', @ARGV);
+       my %repo_args = (Repository => $repo_path, WorkingCopy => $workdir);
+       my $diffrepo = Git->repository(%repo_args);
+
+       my @gitargs = ('diff', '--raw', '--no-abbrev', '-z', @ARGV);
+       my $diffrtn = $diffrepo->command_oneline(@gitargs);
        exit(0) if (length($diffrtn) == 0);
 
        # Setup temp directories
@@ -140,11 +150,15 @@ sub setup_dir_diff
        my $i = 0;
        while ($i < $#rawdiff) {
                if ($rawdiff[$i] =~ /^::/) {
-                       print "Combined diff formats ('-c' and '--cc') are not supported in directory diff mode.\n";
+                       warn << 'EOF';
+Combined diff formats ('-c' and '--cc') are not supported in
+directory diff mode ('-d' and '--dir-diff').
+EOF
                        exit(1);
                }
 
-               my ($lmode, $rmode, $lsha1, $rsha1, $status) = split(' ', substr($rawdiff[$i], 1));
+               my ($lmode, $rmode, $lsha1, $rsha1, $status) =
+                       split(' ', substr($rawdiff[$i], 1));
                my $src_path = $rawdiff[$i + 1];
                my $dst_path;
 
@@ -156,7 +170,7 @@ sub setup_dir_diff
                        $i += 2;
                }
 
-               if (($lmode eq $submodule_mode) or ($rmode eq $submodule_mode)) {
+               if ($lmode eq $submodule_mode or $rmode eq $submodule_mode) {
                        $submodule{$src_path}{left} = $lsha1;
                        if ($lsha1 ne $rsha1) {
                                $submodule{$dst_path}{right} = $rsha1;
@@ -167,14 +181,16 @@ sub setup_dir_diff
                }
 
                if ($lmode eq $symlink_mode) {
-                       $symlink{$src_path}{left} = $diffrepo->command_oneline('show', "$lsha1");
+                       $symlink{$src_path}{left} =
+                               $diffrepo->command_oneline('show', "$lsha1");
                }
 
                if ($rmode eq $symlink_mode) {
-                       $symlink{$dst_path}{right} = $diffrepo->command_oneline('show', "$rsha1");
+                       $symlink{$dst_path}{right} =
+                               $diffrepo->command_oneline('show', "$rsha1");
                }
 
-               if (($lmode ne $null_mode) and ($status !~ /^C/)) {
+               if ($lmode ne $null_mode and $status !~ /^C/) {
                        $lindex .= "$lmode $lsha1\t$src_path\0";
                }
 
@@ -199,14 +215,16 @@ sub setup_dir_diff
        # Populate the left and right directories based on each index file
        my ($inpipe, $ctx);
        $ENV{GIT_INDEX_FILE} = "$tmpdir/lindex";
-       ($inpipe, $ctx) = $repo->command_input_pipe(qw/update-index -z --index-info/);
+       ($inpipe, $ctx) =
+               $repo->command_input_pipe(qw(update-index -z --index-info));
        print($inpipe $lindex);
        $repo->command_close_pipe($inpipe, $ctx);
        my $rc = system('git', 'checkout-index', '--all', "--prefix=$ldir/");
        exit($rc | ($rc >> 8)) if ($rc != 0);
 
        $ENV{GIT_INDEX_FILE} = "$tmpdir/rindex";
-       ($inpipe, $ctx) = $repo->command_input_pipe(qw/update-index -z --index-info/);
+       ($inpipe, $ctx) =
+               $repo->command_input_pipe(qw(update-index -z --index-info));
        print($inpipe $rindex);
        $repo->command_close_pipe($inpipe, $ctx);
        $rc = system('git', 'checkout-index', '--all', "--prefix=$rdir/");