From 3fc77c5b73e3457ed0653325ee823fcecd40c343 Mon Sep 17 00:00:00 2001
From: velvettear <daniel.sommer@velvettear.de>
Date: Thu, 30 Nov 2023 16:32:49 +0100
Subject: [PATCH] added environment variable to pass arguments to the specified
 script

---
 .vscode/launch.json       | 1 +
 README.md                 | 3 ++-
 internal/config/config.go | 2 ++
 internal/slideshow.go     | 2 +-
 slideshow.service         | 1 +
 5 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/.vscode/launch.json b/.vscode/launch.json
index abd95d9..4cd5e8d 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -15,6 +15,7 @@
         "SLIDESHOW_PALETTE_ALGORITHM": "",
         "SLIDESHOW_PALETTE_COLORS": "",
         "SLIDESHOW_SCRIPT": "",
+        "SLIDESHOW_SCRIPT_ARGS": "",
         "SLIDESHOW_SCRIPT_ASYNC": "",
         "SLIDESHOW_SCRIPT_STAGE": "",
         "SLIDESHOW_LOGLEVEL": "debug",
diff --git a/README.md b/README.md
index 98cbeb8..3832ebd 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,8 @@ configuration is entirely done via environment variables.
 | SLIDESHOW_PALETTE           |                   | path to a file where the color palette will be stored      |
 | SLIDESHOW_PALETTE_ALGORITHM | "wsm"             | the algorithm used to generate the color palette           |
 | SLIDESHOW_PALETTE_COLORS    | 16                | the amount of colors generated                             |
-| SLIDESHOW_SCRIPT            |                   | path to a script to execute after each loop                |
+| SLIDESHOW_SCRIPT            |                   | path to a script to execute each loop                      |
+| SLIDESHOW_SCRIPT_ARGS       |                   | arguments to pass to the script                            |
 | SLIDESHOW_SCRIPT_ASYNC      | false             | run the script asynchronously (in a goroutine)             |
 | SLIDESHOW_SCRIPT_STAGE      |                   | the stage at which the script is executed                  |
 | SLIDESHOW_LOGLEVEL          | "info"            | the log level                                              |
diff --git a/internal/config/config.go b/internal/config/config.go
index 4d4fc94..1502c34 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -17,6 +17,7 @@ var PaletteFile string
 var PaletteAlgorithm string
 var PaletteColors int
 var Script string
+var ScriptArgs []string
 var ScriptAsync bool
 var ScriptStage string
 
@@ -58,6 +59,7 @@ func Initialize() {
 	}
 	PaletteColors = tmpInt
 	Script = os.Getenv("SLIDESHOW_SCRIPT")
+	ScriptArgs = strings.Split(os.Getenv("SLIDESHOW_SCRIPT_ARGS"), " ")
 	ScriptAsync, _ = strconv.ParseBool(os.Getenv("SLIDESHOW_SCRIPT_ASYNC"))
 	ScriptStage = strings.ToLower(os.Getenv("SLIDESHOW_SCRIPT_STAGE"))
 	checkScript()
diff --git a/internal/slideshow.go b/internal/slideshow.go
index 324fc49..427b648 100644
--- a/internal/slideshow.go
+++ b/internal/slideshow.go
@@ -98,7 +98,7 @@ func runScript(running bool) {
 	if !config.IsScriptSet() {
 		return
 	}
-	cmd := exec.Command(config.Script)
+	cmd := exec.Command(config.Script, config.ScriptArgs...)
 	error := cmd.Run()
 	if error != nil {
 		loggo.Error("encountered an error executing the script '"+config.Script+"'", error.Error())
diff --git a/slideshow.service b/slideshow.service
index 3242540..fe5638f 100644
--- a/slideshow.service
+++ b/slideshow.service
@@ -12,6 +12,7 @@ Environment="SLIDESHOW_PALETTE=/tmp/.slideshow.palette"
 Environment="SLIDESHOW_PALETTE_ALGORITHM="
 Environment="SLIDESHOW_PALETTE_COLORS="
 Environment="SLIDESHOW_SCRIPT="
+Environment="SLIDESHOW_SCRIPT_ARGS="
 Environment="SLIDESHOW_SCRIPT_ASYNC="
 Environment="SLIDESHOW_SCRIPT_STAGE="
 Environment="SLIDESHOW_LOGLEVEL=debug"