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src/tools.rs: add new run_command helper

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This commit is contained in:
Dietmar Maurer 2020-06-10 07:16:47 +02:00
parent b9cf6ee797
commit 144006fade
2 changed files with 33 additions and 37 deletions
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15
src/tools.rs
View File

@ -480,7 +480,7 @@ pub fn normalize_uri_path(path: &str) -> Result<(String, Vec<&str>), Error> {
/// is considered successful.
pub fn command_output(
output: std::process::Output,
exit_code_check: Option<fn(i32) -> bool>
exit_code_check: Option<fn(i32) -> bool>,
) -> Result<String, Error> {
if !output.status.success() {
@ -507,6 +507,19 @@ pub fn command_output(
Ok(output)
}
pub fn run_command(
mut command: std::process::Command,
exit_code_check: Option<fn(i32) -> bool>,
) -> Result<String, Error> {
let output = command.output()
.map_err(|err| format_err!("failed to execute {:?} - {}", command, err))?;
let output = crate::tools::command_output(output, exit_code_check)
.map_err(|err| format_err!("command {:?} failed - {}", command, err))?;
Ok(output)
}
pub fn fd_change_cloexec(fd: RawFd, on: bool) -> Result<(), Error> {
use nix::fcntl::{fcntl, FdFlag, F_GETFD, F_SETFD};

55
src/tools/disks.rs
View File

@ -563,11 +563,7 @@ pub fn get_partition_type_info() -> Result<HashMap<String, Vec<String>>, Error>
let mut command = std::process::Command::new(LSBLK_BIN_PATH);
command.args(&["--json", "-o", "path,parttype"]);
let output = command.output()
.map_err(|err| format_err!("failed to execute '{}' - {}", LSBLK_BIN_PATH, err))?;
let output = crate::tools::command_output(output, None)
.map_err(|err| format_err!("lsblk command failed: {}", err))?;
let output = crate::tools::run_command(command, None)?;
let mut res: HashMap<String, Vec<String>> = HashMap::new();
@ -865,11 +861,7 @@ pub fn reread_partition_table(disk: &Disk) -> Result<(), Error> {
command.arg("--rereadpt");
command.arg(disk_path);
let output = command.output()
.map_err(|err| format_err!("failed to execute '{}' - {}", BLOCKDEV_BIN_PATH, err))?;
crate::tools::command_output(output, None)
.map_err(|err| format_err!("re-read partition table failed: {}", err))?;
crate::tools::run_command(command, None)?;
Ok(())
}
@ -888,11 +880,7 @@ pub fn inititialize_gpt_disk(disk: &Disk, uuid: Option<&str>) -> Result<(), Erro
command.arg(disk_path);
command.args(&["-U", uuid]);
let output = command.output()
.map_err(|err| format_err!("failed to execute '{}' - {}", SGDISK_BIN_PATH, err))?;
crate::tools::command_output(output, None)
.map_err(|err| format_err!("sgdisk command failed: {}", err))?;
crate::tools::run_command(command, None)?;
Ok(())
}
@ -909,11 +897,7 @@ pub fn create_single_linux_partition(disk: &Disk) -> Result<Disk, Error> {
command.args(&["-n1", "-t1:8300"]);
command.arg(disk_path);
let output = command.output()
.map_err(|err| format_err!("failed to execute '{}' - {}", SGDISK_BIN_PATH, err))?;
crate::tools::command_output(output, None)
.map_err(|err| format_err!("sgdisk command failed: {}", err))?;
crate::tools::run_command(command, None)?;
let mut partitions = disk.partitions()?;
@ -924,7 +908,7 @@ pub fn create_single_linux_partition(disk: &Disk) -> Result<Disk, Error> {
}
#[api()]
#[derive(Debug, Serialize, Deserialize, PartialEq)]
#[derive(Debug, Copy, Clone, Serialize, Deserialize, PartialEq)]
#[serde(rename_all="lowercase")]
pub enum FileSystemType {
/// Linux Ext4
@ -933,6 +917,16 @@ pub enum FileSystemType {
Xfs,
}
impl std::fmt::Display for FileSystemType {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
let text = match self {
FileSystemType::Ext4 => "ext4",
FileSystemType::Xfs => "xfs",
};
write!(f, "{}", text)
}
}
/// Create a file system on a disk or disk partition
pub fn create_file_system(disk: &Disk, fs_type: FileSystemType) -> Result<(), Error> {
@ -941,20 +935,13 @@ pub fn create_file_system(disk: &Disk, fs_type: FileSystemType) -> Result<(), Er
None => bail!("disk {:?} has no node in /dev", disk.syspath()),
};
let fs_type = match fs_type {
FileSystemType::Ext4 => "ext4",
FileSystemType::Xfs => "xfs",
};
let fs_type = fs_type.to_string();
let mut command = std::process::Command::new(MKFS_BIN_PATH);
command.args(&["-t", fs_type]);
command.args(&["-t", &fs_type]);
command.arg(disk_path);
let output = command.output()
.map_err(|err| format_err!("failed to execute '{}' - {}", MKFS_BIN_PATH, err))?;
crate::tools::command_output(output, None)
.map_err(|err| format_err!("mkfs {} failed: {}", fs_type, err))?;
crate::tools::run_command(command, None)?;
Ok(())
}
@ -992,11 +979,7 @@ pub fn get_fs_uuid(disk: &Disk) -> Result<String, Error> {
command.args(&["-o", "export"]);
command.arg(disk_path);
let output = command.output()
.map_err(|err| format_err!("failed to execute '{}' - {}", BLKID_BIN_PATH, err))?;
let output = crate::tools::command_output(output, None)
.map_err(|err| format_err!("blkid command failed: {}", err))?;
let output = crate::tools::run_command(command, None)?;
for line in output.lines() {
if line.starts_with("UUID=") {