mirror of
https://github.com/philmmanjaro/alma.git
synced 2025-07-26 06:59:28 +02:00
490ab30f4c
Status: WIP Completed: * Fixed flagged clippy lints * Moved qemu(), main.rs::mount() and chroot() to the tools module. * Moved constants in main.rs to constants.rs (including base packages array) * Renamed Presets struct to PresetsCollection to avoid confusion with Preset struct * Moved main() to the top of main.rs to highlight general logic path * Added comments and docstrings to some functions * Removed some uses of `use foo::*` to make the source of imported functions and structs clearer TODO: * Move remaining code in main.rs to modules (except main()) * Break up create() function in to separate steps * Log every command run (with arguments) to debug! when verbose flag is used * Add docstrings for remaining functions and document constants (e.g. why noatime is used) * Remove remaining uses of `use foo::*` * Consider renaming/moving tools module to address tool:: vs. Tool:: confusion
71 lines
2.3 KiB
Rust
71 lines
2.3 KiB
Rust
use super::mount;
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use super::Tool;
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use crate::args;
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use crate::constants::{BOOT_PARTITION_INDEX, ROOT_PARTITION_INDEX};
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use crate::error::{Error, ErrorKind};
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use crate::process::CommandExt;
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use crate::storage;
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use crate::storage::{is_encrypted_device, EncryptedDevice};
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use crate::storage::{BlockDevice, Filesystem, FilesystemType, LoopDevice};
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use log::info;
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use failure::ResultExt;
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use tempfile::tempdir;
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/// Use arch-chroot to chroot to the given device
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/// Also handles encrypted root partitions (detected by checking for the LUKS magic header)
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pub fn chroot(command: args::ChrootCommand) -> Result<(), Error> {
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let arch_chroot = Tool::find("arch-chroot")?;
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let cryptsetup;
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let loop_device: Option<LoopDevice>;
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let storage_device =
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match storage::StorageDevice::from_path(&command.block_device, command.allow_non_removable)
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{
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Ok(b) => b,
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Err(_) => {
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loop_device = Some(LoopDevice::create(&command.block_device)?);
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storage::StorageDevice::from_path(
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loop_device.as_ref().unwrap().path(),
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command.allow_non_removable,
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)?
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}
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};
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let mount_point = tempdir().context(ErrorKind::TmpDirError)?;
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let boot_partition = storage_device.get_partition(BOOT_PARTITION_INDEX)?;
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let boot_filesystem = Filesystem::from_partition(&boot_partition, FilesystemType::Vfat);
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let root_partition_base = storage_device.get_partition(ROOT_PARTITION_INDEX)?;
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let encrypted_root = if is_encrypted_device(&root_partition_base)? {
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cryptsetup = Some(Tool::find("cryptsetup")?);
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Some(EncryptedDevice::open(
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cryptsetup.as_ref().unwrap(),
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&root_partition_base,
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"alma_root".into(),
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)?)
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} else {
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None
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};
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let root_partition = if let Some(e) = encrypted_root.as_ref() {
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e as &dyn BlockDevice
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} else {
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&root_partition_base as &dyn BlockDevice
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};
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let root_filesystem = Filesystem::from_partition(root_partition, FilesystemType::Ext4);
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let mount_stack = mount(mount_point.path(), &boot_filesystem, &root_filesystem)?;
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arch_chroot
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.execute()
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.arg(mount_point.path())
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.args(&command.command)
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.run(ErrorKind::Interactive)?;
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info!("Unmounting filesystems");
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mount_stack.umount()?;
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Ok(())
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}
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