From eca24bebcce3ff429296e68c115dd27cea6d9f18 Mon Sep 17 00:00:00 2001
From: Jan De Dobbeleer <jan.de.dobbeleer@gmail.com>
Date: Sun, 24 Oct 2021 18:42:01 +0200
Subject: [PATCH] fix: inherit Transparent when no parent

---
 src/ansi_color.go           |  6 ++++++
 src/ansi_color_test.go      | 12 ++++++++++++
 src/segment_az_functions.go |  2 +-
 3 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/src/ansi_color.go b/src/ansi_color.go
index 299192e7..beabb8d5 100644
--- a/src/ansi_color.go
+++ b/src/ansi_color.go
@@ -137,9 +137,15 @@ func (a *AnsiColor) write(background, foreground, text string) {
 		if background == Inherit && a.Parent != nil {
 			background = a.Parent.Background
 		}
+		if background == Inherit && a.Parent == nil {
+			background = Transparent
+		}
 		if foreground == Inherit && a.Parent != nil {
 			foreground = a.Parent.Foreground
 		}
+		if foreground == Inherit && a.Parent == nil {
+			foreground = Transparent
+		}
 		inverted := foreground == Transparent && len(background) != 0
 		background = a.getAnsiFromColorString(background, !inverted)
 		foreground = a.getAnsiFromColorString(foreground, false)
diff --git a/src/ansi_color_test.go b/src/ansi_color_test.go
index 665024b5..12efb409 100644
--- a/src/ansi_color_test.go
+++ b/src/ansi_color_test.go
@@ -92,6 +92,18 @@ func TestWriteANSIColors(t *testing.T) {
 			Colors:   &Color{Foreground: "black", Background: "white"},
 			Parent:   &Color{Foreground: "yellow", Background: "red"},
 		},
+		{
+			Case:     "Inherit no parent foreground",
+			Input:    "hello <inherit>world</>",
+			Expected: "\x1b[47m\x1b[30mhello \x1b[0m\x1b[47;49m\x1b[7mworld\x1b[0m",
+			Colors:   &Color{Foreground: "black", Background: "white"},
+		},
+		{
+			Case:     "Inherit no parent background",
+			Input:    "hello <,inherit>world</>",
+			Expected: "\x1b[47m\x1b[30mhello \x1b[0m\x1b[30mworld\x1b[0m",
+			Colors:   &Color{Foreground: "black", Background: "white"},
+		},
 		{
 			Case:     "Inline override",
 			Input:    "hello, <red>world</>, rabbit",
diff --git a/src/segment_az_functions.go b/src/segment_az_functions.go
index 6f8c685a..aa78d88b 100644
--- a/src/segment_az_functions.go
+++ b/src/segment_az_functions.go
@@ -12,7 +12,7 @@ func (az *azfunc) init(props *properties, env environmentInfo) {
 	az.language = &language{
 		env:        env,
 		props:      props,
-		extensions: []string{"host.json", "local.settings.json"},
+		extensions: []string{"host.json", "local.settings.json", "function.json"},
 		commands: []*cmd{
 			{
 				executable: "func",