Initial commit

.gitignore

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+/target

Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "screen-flip"
+version = "0.1.0"

Cargo.toml

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+[package]
+name = "screen-flip"
+version = "0.1.0"
+edition = "2021"

src/main.rs

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+use std::fs::{read_to_string, write};
+
+fn find_first_number_position(input: &str) -> Option<usize> {
+    let mut position = None;
+    for (idx, c) in input.chars().enumerate() {
+        if c.is_digit(10) {
+            position = Some(idx);
+            break;
+        }
+    }
+    position
+}
+
+fn main() {
+    let path = "/home/sprechtl/.config/hypr/transform.conf";
+    let input = read_to_string(&path).expect("Could not read transform.conf");
+    let index_of_number = find_first_number_position(&input).expect("No number in line");
+    let mut output = "".to_string();
+    if let Some(tranform) = input.chars().nth(index_of_number) {
+        output = input.chars().take(index_of_number).collect::<String>();
+        if tranform == '0' {
+            output.push('2');
+        } else {
+            output.push('0');
+        }
+    } else {
+        panic!("Could not find tranform");
+    }
+    write(path, output).expect("Could not write transform.conf");
+}