Drop nightly requirement

Cargo.toml

@@ -23,7 +23,7 @@ repository = "https://github.com/hakoerber/git-repo-manager"
 readme = "README.md"
 
 # Required for `std::path::Path::is_symlink()`. Will be released with 1.57.
-rust-version = "1.57"
+rust-version = "1.58"
 
 license = "GPL-3.0-only"
 

Justfile

@@ -4,7 +4,7 @@ set shell := ["/bin/bash", "-c"]
 
 static_target := "x86_64-unknown-linux-musl"
 
-cargo := "cargo +nightly"
+cargo := "cargo"
 
 check: fmt-check lint test
     {{cargo}} check

depcheck/update-cargo-dependencies.py

@@ -93,15 +93,7 @@ for tier in ["dependencies", "dev-dependencies"]:
 
             try:
                 cmd = subprocess.run(
-                    [
-                        "cargo",
-                        "update",
-                        "-Z",
-                        "no-index-update",
-                        "--aggressive",
-                        "--package",
-                        name,
-                    ],
+                    ["cargo", "update", "--offline", "--aggressive", "--package", name],
                     check=True,
                     capture_output=True,
                     text=True,
@@ -135,15 +127,7 @@ while True:
         spec = f"{package['name']}:{package['version']}"
         try:
             cmd = subprocess.run(
-                [
-                    "cargo",
-                    "update",
-                    "-Z",
-                    "no-index-update",
-                    "--aggressive",
-                    "--package",
-                    spec,
-                ],
+                ["cargo", "update", "--offline", "--aggressive", "--package", spec],
                 check=True,
                 capture_output=True,
                 text=True,

docs/src/developing.md

@@ -28,7 +28,7 @@ Feature branches are not required, there are also changes happening directly on
 
 You will need the following tools:
 
-* Rust (obviously) (easiest via `rustup`), with the nightly toolchain
+* Rust (obviously) (easiest via `rustup`)
 * Python3
 * [`just`](https://github.com/casey/just), a command runner like `make`. See
   [here](https://github.com/casey/just#installation) for installation
@@ -52,18 +52,3 @@ mvdan.cc/sh/v3/cmd/shfmt@latest`, depending on your go build environment.
 
 For details about rustup and the toolchains, see [the installation
 section](./installation.md).
-
-## FAQ
-
-### Why nightly?
-
-For now, GRM requires the nightly toolchain for two reasons:
-
-* [`io_error_more`](https://github.com/rust-lang/rust/issues/86442) to get
-  better error messages on IO errors
-* [`const_option_ext`](https://github.com/rust-lang/rust/issues/91930) to have
-  static variables read from the environment that fall back to hard coded
-  defaults
-
-Honestly, both of those are not really necessary or can be handled without
-nightly. It's just that I'm using nightly anyway.

docs/src/installation.md

@@ -2,14 +2,14 @@
 
 ## Installation
 
-Building GRM currently requires the nightly Rust toolchain. The easiest way is
+Building GRM requires the Rust toolchain to be installed. The easiest way is
 using [`rustup`](https://rustup.rs/). Make sure that rustup is properly
 installed.
 
-Make sure that the nightly toolchain is installed:
+Make sure that the stable toolchain is installed:
 
 ```
-$ rustup toolchain install nightly
+$ rustup toolchain install stable
 ```
 
 Then, install the build dependencies:
@@ -22,13 +22,13 @@ Then, install the build dependencies:
 Then, it's a simple command to install the latest stable version:
 
 ```bash
-$ cargo +nightly install git-repo-manager
+$ cargo install git-repo-manager
 ```
 
 If you're brave, you can also run the development build:
 
 ```bash
-$ cargo +nightly install --git https://github.com/hakoerber/git-repo-manager.git --branch develop
+$ cargo install --git https://github.com/hakoerber/git-repo-manager.git --branch develop
 ```
 
 ## Static build
@@ -47,11 +47,11 @@ need `musl` and a few other build dependencies installed installed:
 The, add the musl target via `rustup`:
 
 ```
-$ rustup +nightly target add x86_64-unknown-linux-musl
+$ rustup target add x86_64-unknown-linux-musl
 ```
 
 Then, use a modified build command to get a statically linked binary:
 
 ```
-$ cargo +nightly install git-repo-manager --target x86_64-unknown-linux-musl --features=static-build
+$ cargo install git-repo-manager --target x86_64-unknown-linux-musl --features=static-build
 ```

rust-toolchain.toml

@@ -1,3 +1,3 @@
 [toolchain]
-channel = "nightly"
+channel = "stable"
 targets = ["x86_64-unknown-linux-musl"]

src/lib.rs

@@ -1,4 +1,3 @@
-#![feature(io_error_more)]
 #![forbid(unsafe_code)]
 
 use std::path::Path;

src/tree.rs

@@ -128,8 +128,6 @@ pub fn find_repo_paths(path: &Path) -> Result<Vec<PathBuf>, String> {
                     "Failed to open \"{}\": {}",
                     &path.display(),
                     match e.kind() {
-                        std::io::ErrorKind::NotADirectory =>
-                            String::from("directory expected, but path is not a directory"),
                         std::io::ErrorKind::NotFound => String::from("not found"),
                         _ => format!("{:?}", e.kind()),
                     }