add workflow

.github/workflows/build.yaml

@@ -0,0 +1,48 @@
+# yaml-language-server: $schema=https://raw.githubusercontent.com/SchemaStore/schemastore/master/src/schemas/json/github-workflow.json
+name: Build and release
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - "master"
+
+permissions:
+  contents: write
+
+
+jobs:
+  tag:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Update release tag
+        uses: EndBug/latest-tag@latest
+
+  static:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Install Nix
+        uses: DeterminateSystems/nix-installer-action@main
+      - name: Install Magic Nix Cache
+        uses: DeterminateSystems/magic-nix-cache-action@main
+      - name: Build
+        run: |
+          mkdir release
+          nix build .#pkgsCross.musl64.hover-rs -L
+          cp -vL ./result/bin/hover release/hover-static-x86_64-linux
+
+      - uses: ncipollo/release-action@v1
+        name: Release
+        with:
+          tag: latest
+          makeLatest: true
+          omitBody: true
+          omitName: true
+          allowUpdates: true
+          replacesArtifacts: true
+          artifacts: "release/*"
+

Cargo.toml

@@ -14,7 +14,6 @@ caps = "0.5.5"
 clap = { version = "4.5.2", features = ["derive"] }
 color-eyre = "0.6.2"
 eyre = "0.6.12"
-format-bytes = "0.3.0"
 nix = { version = "0.28.0", features = ["fs", "feature", "sched", "user", "mount"] }
 owo-colors = "4.0.0"
 rand = "0.8.5"

flake.nix

@@ -4,5 +4,10 @@
     { self, nixpkgs }:
     {
       packages.x86_64-linux.default = nixpkgs.legacyPackages.x86_64-linux.callPackage ./package.nix { };
+
+      legacyPackages.x86_64-linux = import nixpkgs {
+        system = "x86_64-linux";
+        overlays = [ (final: prev: { hover-rs = final.callPackage ./package.nix { }; }) ];
+      };
     };
 }

package.nix

@@ -1,4 +1,8 @@
-{ rustPlatform, lib }:
+{
+  rustPlatform,
+  lib,
+  targetPlatform,
+}:
 rustPlatform.buildRustPackage {
   name = "hover-rs";
 
@@ -15,6 +19,9 @@ rustPlatform.buildRustPackage {
 
   strictDeps = true;
   cargoLock.lockFile = ./Cargo.lock;
+
+  env.RUSTFLAGS = lib.optionalString (targetPlatform.libc == "musl") "-C target-feature=+crt-static";
+
   meta = {
     mainProgram = "hover";
   };

src/main.rs

@@ -4,7 +4,6 @@ use crate::utils::NNONE;
 
 use caps::{CapSet, Capability};
 use eyre::{bail, ensure, Context};
-use format_bytes::format_bytes;
 use nix::libc::SIGCHLD;
 use nix::mount::{mount, MsFlags};
 use nix::sched::{clone, unshare, CloneFlags};