Devcontainertainertainer (#3251)

.devcontainer/devcontainer.json

@@ -2,7 +2,8 @@
 // README at: https://github.com/devcontainers/templates/tree/main/src/rust
 {
 	"name": "Rust",
-	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+
+	// https://github.com/devcontainers/images/tree/main/src/rust
 	"image": "mcr.microsoft.com/devcontainers/rust:1-1-bookworm",
 	"features": {
 	},
@@ -13,6 +14,11 @@
 			"source": "devcontainer-cargo-cache-${devcontainerId}",
 			"target": "/usr/local/cargo",
 			"type": "volume"
+		},
+		{
+			"source": "devcontainer-sccache-cache-${devcontainerId}",
+			"target": "/home/vscode/.cache/sccache",
+			"type": "volume"
 		}
 	],
 	// Features to add to the dev container. More info: https://containers.dev/features.
@@ -21,7 +27,17 @@
 	// Use 'forwardPorts' to make a list of ports inside the container available locally.
 	"forwardPorts": [8443],
 	// Use 'postCreateCommand' to run commands after the container is created.
-	"postCreateCommand": "rustup update && rustup default stable && rustup component add rustfmt clippy && sudo apt-get update && sudo apt-get install -y sccache ripgrep libssl-dev pkg-config jq libpam0g-dev libudev-dev cmake build-essential && cargo install cargo-audit   mdbook-mermaid mdbook && cargo install mdbook-alerts --version 0.6.4 && cargo install deno --locked"
+	"postCreateCommand": "./scripts/devcontainer_postcreate.sh",
+
+	// postStartCommand runs things once the container's up, in this case, we're starting sccache
+	"postStartCommand": "./scripts/devcontainer_poststart.sh",
+
+	// environment variables
+	"containerEnv": {
+		// "RUSTC_WRAPPER": "sccache",
+		// "CC":"/usr/bin/sccache /usr/bin/clang",
+		"SCCACHE_SERVER_UDS" : "/tmp/sccache.sock"
+	}
 
 	// Configure tool-specific properties.
 	// "customizations": {},

scripts/devcontainer_postcreate.sh

@@ -0,0 +1,46 @@
+#!/bin/bash
+
+set -e
+
+echo "Installing rust stable toolchain"
+rustup update
+rustup default stable
+rustup component add rustfmt clippy
+
+echo "Installing packages"
+sudo apt-get update
+sudo apt-get install -y \
+    build-essential \
+    clang \
+    cmake \
+    libtss2-dev \
+    tpm-udev \
+    jq \
+    libpam0g-dev \
+    libssl-dev \
+    libudev-dev \
+    pkg-config \
+    ripgrep
+
+export PATH="$HOME/.cargo/bin:$PATH"
+
+cargo install \
+    sccache
+
+
+# stupid permissions issues
+sudo chown vscode ~/ -R
+sudo chgrp vscode ~/ -R
+
+# shellcheck disable=SC1091
+source scripts/devcontainer_poststart.sh
+
+cargo install
+    cargo-audit \
+    mdbook-mermaid \
+    mdbook
+cargo install mdbook-alerts --version 0.6.4
+cargo install deno --locked
+
+
+echo "Done!"

scripts/devcontainer_poststart.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+# stupid permissions issues
+sudo chown vscode ~/ -R
+sudo chgrp vscode ~/ -R
+
+export PATH="$HOME/.cargo/bin:$PATH"
+SCCACHE_SERVER_UDS="/tmp/sccache.sock" sccache --start-server
+
+# to set up sccache etc
+if [ "$(grep -c "devcontainer_poststart" ~/.bashrc)" -eq 0 ]; then
+    echo "adding devcontainer_poststart to bashrc"
+    echo "source /workspaces/kanidm/scripts/devcontainer_poststart.sh" >> ~/.bashrc
+fi
+export RUSTC_WRAPPER="sccache"
+export CC="sccache /usr/bin/clang"
+
+# disable incremental builds
+# cargo docs: https://doc.rust-lang.org/cargo/reference/profiles.html#incremental
+# sccache docs on why to disable incremental builds: https://github.com/mozilla/sccache#known-caveats
+export CARGO_INCREMENTAL=false