initramfs: Convert to library

Create a lib.rs as we'd like to utilize these functions elsewhere in the
codebase

Signed-off-by: Johan-Liebert1 <[email protected]>

Author: Johan-Liebert1

crates/initramfs/src/mount.rs renamed to crates/initramfs/src/lib.rs

@@ -102,8 +102,8 @@ pub struct Args {
     pub target: Option<PathBuf>,
 }
 
-// Helpers
-fn mount_at_wrapper(
+/// Wrapper around [`composefs::mount::mount_at`]
+pub fn mount_at_wrapper(
     fs_fd: impl AsFd,
     dirfd: impl AsFd,
     path: impl path::Arg + Debug + Clone,
@@ -242,7 +242,8 @@ fn mount_subdir(
 }
 
 #[context("GPT workaround")]
-pub(crate) fn gpt_workaround() -> Result<()> {
+/// Workaround for /dev/gpt-auto-root
+pub fn gpt_workaround() -> Result<()> {
     // https://github.com/systemd/systemd/issues/35017
     let rootdev = stat("/dev/gpt-auto-root");
 

crates/initramfs/src/main.rs

@@ -1,12 +1,10 @@
 //! Code for bootc that goes into the initramfs.
 // SPDX-License-Identifier: Apache-2.0 OR MIT
 
-mod mount;
-
 use anyhow::Result;
 
+use bootc_initramfs_setup::{gpt_workaround, setup_root, Args};
 use clap::Parser;
-use mount::{gpt_workaround, setup_root, Args};
 
 fn main() -> Result<()> {
     let args = Args::parse();