Colors are specified in color.interactive.{prompt,header,help}.
They are specified as git color strings as described in the
documentation, then parsed into perl color strings (slightly
different). Ugly but visible defaults are still used.

Signed-off-by: Dan Zwell <dzwell@zwell.net>
---
Note: the code to parse git-style color strings to perl-style color
strings should eventually be added to Git.pm so that other (perl)
parts of git can be configured to read colors from .gitconfig in
a nicer way. A git-style string is "ul red black", while perl 
likes strings like "underline red on_black".

 Documentation/config.txt  |    7 ++++
 git-add--interactive.perl |   76
++++++++++++++++++++++++++++++++++++++++++-- 2 files changed, 79
insertions(+), 4 deletions(-)

diff --git a/Documentation/config.txt b/Documentation/config.txt
index c795a35..75a976a 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -387,6 +387,13 @@ color.interactive::
 	`auto`, use colors only when the output is to the
 	terminal. Defaults to false.
 
+color.interactive.<slot>::
+	Use customized color for `git add --interactive`
+	output. `<slot>` may be `prompt`, `header`, or `help`, for
+	three distinct types of normal output from interactive
+	programs.  The values of these variables may be specified as
+	in color.branch.<slot>.
+
 color.pager::
 	A boolean to enable/disable colored output when the pager is in
 	use (default is true).
diff --git a/git-add--interactive.perl b/git-add--interactive.perl
index c66ed4d..d85ec92 100755
--- a/git-add--interactive.perl
+++ b/git-add--interactive.perl
@@ -6,10 +6,78 @@ my ($use_color, $prompt_color, $header_color, $help_color);
 my $color_config = qx(git config --get color.interactive);
 if ($color_config=~/true|always/ || -t STDOUT && $color_config=~/auto/) {
 	$use_color = "true";
-        # Sane (visible) defaults:
-        $prompt_color = "blue bold";
-        $header_color = "bold";
-        $help_color = "red bold";
+	# Grab the 3 main colors in git color string format:
+	my @git_prompt_color =
+		split(/\s+/, qx(git config --get color.interactive.prompt));
+	my @git_header_color =
+		split(/\s+/, qx(git config --get color.interactive.header));
+	my @git_help_color =
+		split(/\s+/, qx(git config --get color.interactive.help));
+
+	# Sane (visible) defaults:
+	if (! @git_prompt_color) {
+		@git_prompt_color = ("blue", "bold");
+	}
+	if (! @git_header_color) {
+		@git_header_color = ("bold");
+	}
+	if (! @git_help_color) {
+		@git_help_color = ("red", "bold");
+	}
+
+	# Parse the git colors into perl colors:
+	my %attrib_mappings = (
+		"bold"    => "bold",
+		"ul"      => "underline",
+		"blink"   => "blink",
+		# not supported:
+		#"dim"     => "",
+		"reverse" => "reverse"
+	);
+
+	my @tmp_perl_colors;
+	my $color_list;
+	# Loop over the array of (arrays of) git-style colors
+	foreach $color_list ([@git_prompt_color], [@git_header_color],
+	                     [@git_help_color]) {
+		my $fg_done;
+		my @perl_attribs;
+		my $word;
+		foreach $word (@{$color_list}) {
+			if ($word =~ /normal/) {
+				$fg_done = "true";
+			}
+			elsif ($word =~ /black|red|green|yellow/ ||
+			       $word =~ /blue|magenta|cyan|white/) {
+				# is a color.
+				if ($fg_done) {
+					# this is the background
+					push @perl_attribs, "on_" . $word;
+				}
+				else {
+					# this is foreground
+					$fg_done = "true";
+					push @perl_attribs, $word;
+				}
+			}
+			else {
+				# this is an attribute, not a color.
+				if ($attrib_mappings{$word}) {
+					push(@perl_attribs,
+						 $attrib_mappings{$word});
+				}
+			}
+		}
+		if (@perl_attribs) {
+			push @tmp_perl_colors, join(" ", @perl_attribs);
+		}
+		else {
+			#@perl_attribs is empty, need a placeholder
+			push @tmp_perl_colors, "reset";
+		}
+	}
+	($prompt_color, $header_color, $help_color) =
+		@tmp_perl_colors;
 
 	require Term::ANSIColor;
 }
-- 
1.5.3.4.207.gc0ee

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