mirror of
https://github.com/nushell/nushell.git
synced 2024-12-15 03:32:50 +01:00
402 lines
13 KiB
Rust
402 lines
13 KiB
Rust
use crate::errors::ShellError;
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use crate::parser::hir::SyntaxType;
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use crate::parser::registry::{CommandRegistry, Signature};
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use crate::prelude::*;
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use std::path::{Path, PathBuf};
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pub struct Copycp;
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impl StaticCommand for Copycp {
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fn run(
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&self,
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args: CommandArgs,
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registry: &CommandRegistry,
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) -> Result<OutputStream, ShellError> {
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cp(args, registry)
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}
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fn name(&self) -> &str {
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"cp"
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}
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fn signature(&self) -> Signature {
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Signature::build("cp")
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.named("file", SyntaxType::Any)
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.switch("recursive")
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}
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}
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#[derive(Debug, Eq, Ord, PartialEq, PartialOrd)]
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pub struct Res {
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pub loc: PathBuf,
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pub at: usize,
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}
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impl Res {}
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pub struct FileStructure {
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root: PathBuf,
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resources: Vec<Res>,
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}
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impl FileStructure {
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pub fn new() -> FileStructure {
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FileStructure {
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root: PathBuf::new(),
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resources: Vec::<Res>::new(),
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}
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}
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pub fn set_root(&mut self, path: &Path) {
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self.root = path.to_path_buf();
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}
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pub fn paths_applying_with<F>(&mut self, to: F) -> Vec<(PathBuf, PathBuf)>
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where
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F: Fn((PathBuf, usize)) -> (PathBuf, PathBuf),
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{
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self.resources
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.iter()
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.map(|f| (PathBuf::from(&f.loc), f.at))
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.map(|f| to(f))
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.collect()
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}
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pub fn walk_decorate(&mut self, start_path: &Path) {
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self.set_root(&dunce::canonicalize(start_path).unwrap());
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self.resources = Vec::<Res>::new();
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self.build(start_path, 0);
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self.resources.sort();
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}
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fn build(&mut self, src: &'a Path, lvl: usize) {
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let source = dunce::canonicalize(src).unwrap();
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if source.is_dir() {
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for entry in std::fs::read_dir(&source).unwrap() {
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let entry = entry.unwrap();
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let path = entry.path();
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if path.is_dir() {
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self.build(&path, lvl + 1);
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}
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self.resources.push(Res {
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loc: path.to_path_buf(),
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at: lvl,
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});
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}
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} else {
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self.resources.push(Res {
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loc: source,
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at: lvl,
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});
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}
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}
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}
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pub fn cp(args: CommandArgs, registry: &CommandRegistry) -> Result<OutputStream, ShellError> {
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let mut source = PathBuf::from(args.shell_manager.path());
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let mut destination = PathBuf::from(args.shell_manager.path());
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let name_span = args.call_info.name_span;
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let args = args.evaluate_once(registry)?;
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match args
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.nth(0)
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.ok_or_else(|| ShellError::string(&format!("No file or directory specified")))?
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.as_string()?
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.as_str()
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{
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file => {
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source.push(file);
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}
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}
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match args
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.nth(1)
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.ok_or_else(|| ShellError::string(&format!("No file or directory specified")))?
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.as_string()?
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.as_str()
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{
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file => {
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destination.push(file);
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}
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}
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let sources = glob::glob(&source.to_string_lossy());
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if sources.is_err() {
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return Err(ShellError::labeled_error(
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"Invalid pattern.",
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"Invalid pattern.",
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args.nth(0).unwrap().span(),
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));
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}
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let sources: Vec<_> = sources.unwrap().collect();
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if sources.len() == 1 {
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if let Ok(entry) = &sources[0] {
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if entry.is_dir() && !args.has("recursive") {
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return Err(ShellError::labeled_error(
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"is a directory (not copied). Try using \"--recursive\".",
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"is a directory (not copied). Try using \"--recursive\".",
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args.nth(0).unwrap().span(),
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));
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}
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let mut sources: FileStructure = FileStructure::new();
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sources.walk_decorate(&entry);
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if entry.is_file() {
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let strategy = |(source_file, _depth_level)| {
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if destination.exists() {
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let mut new_dst = dunce::canonicalize(destination.clone()).unwrap();
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new_dst.push(entry.file_name().unwrap());
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(source_file, new_dst)
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} else {
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(source_file, destination.clone())
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}
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};
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for (ref src, ref dst) in sources.paths_applying_with(strategy) {
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if src.is_file() {
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match std::fs::copy(src, dst) {
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Err(e) => {
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return Err(ShellError::labeled_error(
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e.to_string(),
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e.to_string(),
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name_span,
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));
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}
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Ok(o) => o,
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};
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}
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}
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}
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if entry.is_dir() {
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if !destination.exists() {
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match std::fs::create_dir_all(&destination) {
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Err(e) => {
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return Err(ShellError::labeled_error(
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e.to_string(),
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e.to_string(),
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name_span,
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));
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}
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Ok(o) => o,
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};
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let strategy = |(source_file, depth_level)| {
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let mut new_dst = destination.clone();
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let path = dunce::canonicalize(&source_file).unwrap();
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let mut comps: Vec<_> = path
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.components()
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.map(|fragment| fragment.as_os_str())
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.rev()
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.take(1 + depth_level)
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.collect();
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comps.reverse();
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for fragment in comps.iter() {
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new_dst.push(fragment);
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}
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(PathBuf::from(&source_file), PathBuf::from(new_dst))
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};
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for (ref src, ref dst) in sources.paths_applying_with(strategy) {
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if src.is_dir() {
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if !dst.exists() {
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match std::fs::create_dir_all(dst) {
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Err(e) => {
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return Err(ShellError::labeled_error(
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e.to_string(),
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e.to_string(),
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name_span,
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));
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}
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Ok(o) => o,
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};
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}
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}
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if src.is_file() {
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match std::fs::copy(src, dst) {
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Err(e) => {
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return Err(ShellError::labeled_error(
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e.to_string(),
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e.to_string(),
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name_span,
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));
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}
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Ok(o) => o,
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};
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}
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}
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} else {
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destination.push(entry.file_name().unwrap());
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match std::fs::create_dir_all(&destination) {
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Err(e) => {
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return Err(ShellError::labeled_error(
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e.to_string(),
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e.to_string(),
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name_span,
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));
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}
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Ok(o) => o,
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};
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let strategy = |(source_file, depth_level)| {
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let mut new_dst = dunce::canonicalize(&destination).unwrap();
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let path = dunce::canonicalize(&source_file).unwrap();
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let mut comps: Vec<_> = path
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.components()
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.map(|fragment| fragment.as_os_str())
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.rev()
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.take(1 + depth_level)
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.collect();
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comps.reverse();
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for fragment in comps.iter() {
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new_dst.push(fragment);
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}
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(PathBuf::from(&source_file), PathBuf::from(new_dst))
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};
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for (ref src, ref dst) in sources.paths_applying_with(strategy) {
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if src.is_dir() {
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if !dst.exists() {
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match std::fs::create_dir_all(dst) {
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Err(e) => {
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return Err(ShellError::labeled_error(
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e.to_string(),
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e.to_string(),
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name_span,
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));
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}
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Ok(o) => o,
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};
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}
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}
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if src.is_file() {
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match std::fs::copy(src, dst) {
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Err(e) => {
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return Err(ShellError::labeled_error(
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e.to_string(),
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e.to_string(),
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name_span,
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));
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}
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Ok(o) => o,
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};
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}
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}
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}
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}
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}
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} else {
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if destination.exists() {
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if !sources.iter().all(|x| (x.as_ref().unwrap()).is_file()) && !args.has("recursive") {
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return Err(ShellError::labeled_error(
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"Copy aborted (directories found). Try using \"--recursive\".",
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"Copy aborted (directories found). Try using \"--recursive\".",
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args.nth(0).unwrap().span(),
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));
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}
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for entry in sources {
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if let Ok(entry) = entry {
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let mut to = PathBuf::from(&destination);
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to.push(&entry.file_name().unwrap());
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match std::fs::copy(&entry, &to) {
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Err(e) => {
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return Err(ShellError::labeled_error(
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e.to_string(),
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e.to_string(),
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name_span,
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));
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}
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Ok(o) => o,
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};
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}
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}
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} else {
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return Err(ShellError::labeled_error(
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format!(
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"Copy aborted. (Does {:?} exist?)",
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&destination.file_name().unwrap()
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),
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format!(
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"Copy aborted. (Does {:?} exist?)",
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&destination.file_name().unwrap()
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),
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args.nth(1).unwrap().span(),
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));
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}
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}
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Ok(OutputStream::empty())
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}
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#[cfg(test)]
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mod tests {
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use super::{FileStructure, Res};
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use std::path::PathBuf;
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fn fixtures() -> PathBuf {
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let mut sdx = PathBuf::new();
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sdx.push("tests");
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sdx.push("fixtures");
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sdx.push("formats");
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dunce::canonicalize(sdx).unwrap()
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}
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#[test]
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fn prepares_and_decorates_source_files_for_copying() {
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let mut res = FileStructure::new();
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res.walk_decorate(fixtures().as_path());
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assert_eq!(
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res.resources,
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vec![
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Res {
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loc: fixtures().join("appveyor.yml"),
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at: 0
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},
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Res {
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loc: fixtures().join("caco3_plastics.csv"),
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at: 0
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},
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Res {
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loc: fixtures().join("cargo_sample.toml"),
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at: 0
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},
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Res {
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loc: fixtures().join("jonathan.xml"),
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at: 0
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},
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Res {
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loc: fixtures().join("sample.ini"),
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at: 0
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},
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Res {
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loc: fixtures().join("sgml_description.json"),
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at: 0
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}
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]
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);
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}
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}
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