let's use mise and nushell (#90)

Author: nekevss

etc/rust/ensure-miri.nu

@@ -0,0 +1,9 @@
+
+let components = (rustup component list --toolchain nightly)
+if ($components | str contains "miri (installed)" or $components | str contains "miri-x86_64") {
+    print "Miri is already installed and ready!"
+} else {
+    print "Miri component not found on nightly. Installing..."
+    rustup component add miri --toolchain nightly
+    cargo +nightly miri setup
+}

etc/rust/ensure-nightly.nu

@@ -0,0 +1,8 @@
+# 1. Check if the nightly toolchain is installed
+let toolchains = (rustup toolchain list)
+if ($toolchains | str contains "nightly") {
+    print "Nightly toolchain is already installed."
+} else {
+    print "Nightly toolchain not found. Installing..."
+    rustup toolchain install nightly --profile minimal
+}

mise.toml

@@ -0,0 +1,24 @@
+[tools]
+"aqua:nushell/nushell" = "0.101.0"
+
+[tasks.install-tools]
+hide = true
+run = "mise install"
+
+[tasks.init]
+description = "Initialize env for oscars development"
+depends = ["install-tools", "miri:setup"]
+
+[tasks."cargo:nightly"]
+description = "Check and install nightly toolchain"
+run = "nu {{config_root}}/etc/rust/ensure-nightly.nu"
+
+[tasks."miri:setup"]
+depends = ["cargo:nightly"]
+description = "Check and install Miri if missing"
+run = "nu {{config_root}}/etc/rust/ensure-miri.nu"
+
+[tasks."test"]
+description = "Run tests with Miri"
+depends = ["miri:setup"]
+run = "cargo +nightly miri test"