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|
use std::fs::*;
use std::io::Write;
use std::process::Command;
use std::ffi::OsStr;
use std::path::Path;
use crate::fail::{HError, HResult};
use crate::widget::WidgetCore;
pub fn ensure_config(core: WidgetCore) -> HResult<()> {
if has_config()? {
let previewers_path = crate::paths::previewers_path()?;
let actions_path = crate::paths::actions_path()?;
if !previewers_path.exists() {
core.show_status("Coulnd't find previewers in config dir! Adding!")?;
install_config_previewers()
.or_else(|_|
core.show_status("Error installing previewers! Check log!"))?;
}
if !actions_path.exists() {
core.show_status("Coulnd't find actions in config dir! Adding!")?;
install_config_actions()
.or_else(|_|
core.show_status("Error installing actions! Check log!"))?;
}
return Ok(());
}
let msg = match install_config_all() {
Ok(_) => format!("Config installed in: {}",
crate::paths::hunter_path()?.to_string_lossy()),
Err(_) => format!("{}Problems with installation of default configuration! Look inside log.",
crate::term::color_red()),
};
core.show_status(&msg)?;
Ok(())
}
fn default_config_archive() -> &'static [u8] {
let default_config = include_bytes!("../config.tar.gz");
default_config
}
fn has_config() -> HResult<bool> {
let config_dir = crate::paths::hunter_path()?;
if config_dir.exists() {
return Ok(true);
} else {
return Ok(false);
}
}
fn install_config_all() -> HResult<()> {
let hunter_dir = crate::paths::hunter_path()?;
let config_dir = hunter_dir.parent()?;
if !hunter_dir.exists() {
// create if non-existing
std::fs::create_dir(&hunter_dir)
.or_else(|_| HError::log(&format!("Couldn't create directory: {}",
hunter_dir.as_os_str()
.to_string_lossy())))?;
}
let archive_path = create_archive()?;
extract_archive(config_dir, &archive_path)?;
delete_archive(archive_path)?;
Ok(())
}
fn move_dir(from: &str, to: &Path) -> HResult<()> {
let success = Command::new("mv")
.arg(from)
.arg(to.as_os_str())
.status()
.map(|s| s.success());
if success.is_err() || !success.unwrap() {
HError::log(&format!("Couldn't move {} to {} !",
from,
to.to_string_lossy()))
} else {
Ok(())
}
}
fn install_config_previewers() -> HResult<()> {
let hunter_dir = crate::paths::hunter_path()?;
let archive_path = create_archive()?;
extract_archive(Path::new("/tmp"), &archive_path)?;
move_dir("/tmp/hunter/previewers", &hunter_dir)?;
delete_archive(&archive_path)
}
fn install_config_actions() -> HResult<()> {
let hunter_dir = crate::paths::hunter_path()?;
let archive_path = create_archive()?;
extract_archive(Path::new("/tmp"), &archive_path)?;
move_dir("/tmp/hunter/actions", &hunter_dir)?;
delete_archive(&archive_path)
}
fn create_archive() -> HResult<&'static str> {
let archive_path = "/tmp/hunter-config.tar.gz";
let def_config = default_config_archive();
File::create(archive_path)
.and_then(|mut f| {
f.write_all(def_config).map(|_| f)
})
.and_then(|mut f| f.flush())
.or_else(|_| {
HError::log(&format!("Failed to write config archive to: {}",
archive_path))
})?;
Ok(archive_path)
}
fn extract_archive(to: &Path, archive_path: &str) -> HResult<()> {
let success = Command::new("tar")
.args(&[OsStr::new("-C"),
to.as_os_str(),
OsStr::new("-xf"),
OsStr::new(archive_path)])
.status()
.or_else(|_| HError::log(&format!("Couldn't run tar!")))
.map(|s| s.success())?;
if !success {
HError::log(&format!("Extraction of archive failed! Archive: {}",
archive_path))?
}
Ok(())
}
fn delete_archive(archive_path: &str) -> HResult<()> {
std::fs::remove_file(archive_path)
.or_else(|_| HError::log(&format!("Deletion of archive failed! Archive: {}",
archive_path)))
}
|
