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refactor: move code from fs.rs into ops/fs.rs (#4428)

Browse source 
This a complex boring PR that shifts around code (primarily) in cli/fs.rs and
cli/ops/fs.rs. The gain of this refactoring is to ease the way for #4188 and
#4017, and also to avoid some future development pain.

Mostly there is no change in functionality. Except:
* squashed bugs where op_utime and op_chown weren't using `resolve_from_cwd`
* eliminated the use of the external `remove_dir_all` crate.
* op_chmod now only queries metadata to verify file/dir exists on Windows (it
  will already fail on Unix if it doesn't)
* op_chown now verifies the file/dir's existence on Windows like chmod does.
This commit is contained in:
dubiousjim 2020-03-20 09:46:26 -04:00 committed by GitHub
parent 798904b0f2
commit 69303e2149
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
7 changed files with 196 additions and 209 deletions
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1
Cargo.lock generated
View file

@ -442,7 +442,6 @@ dependencies = [
"pty",
"rand 0.7.3",
"regex",
"remove_dir_all",
"reqwest",
"ring",
"rustyline",

1
cli/Cargo.toml
View file

@ -44,7 +44,6 @@ log = "0.4.8"
notify = "5.0.0-pre.2"
rand = "0.7.3"
regex = "1.3.5"
remove_dir_all = "0.5.2"
reqwest = { version = "0.10.4", default-features = false, features = ["rustls-tls", "stream", "gzip", "brotli"] }
ring = "0.16.11"
rustyline = "6.0.0"

119
cli/fs.rs
View file

@ -1,21 +1,12 @@
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
use std;
use std::fs::{DirBuilder, File, OpenOptions};
use std::io::ErrorKind;
use std::env::current_dir;
use std::fs::OpenOptions;
use std::io::Write;
use std::path::{Component, Path, PathBuf};
use deno_core::ErrBox;
use rand;
use rand::Rng;
use walkdir::WalkDir;
#[cfg(unix)]
use std::os::unix::fs::{DirBuilderExt, OpenOptionsExt, PermissionsExt};
#[cfg(unix)]
use nix::unistd::{chown as unix_chown, Gid, Uid};
pub fn write_file<T: AsRef<[u8]>>(
filename: &Path,
data: T,
@ -41,99 +32,21 @@ pub fn write_file_2<T: AsRef<[u8]>>(
.open(filename)?;
if update_mode {
set_permissions(&mut file, mode)?;
#[cfg(unix)]
{
use std::os::unix::fs::PermissionsExt;
let mode = mode & 0o777;
debug!("set file mode to {:o}", mode);
let permissions = PermissionsExt::from_mode(mode);
file.set_permissions(permissions)?;
}
#[cfg(not(unix))]
let _ = mode;
}
file.write_all(data.as_ref())
}
#[cfg(unix)]
fn set_permissions(file: &mut File, mode: u32) -> std::io::Result<()> {
debug!("set file mode to {}", mode);
file.set_permissions(PermissionsExt::from_mode(mode & 0o777))
}
#[cfg(not(unix))]
fn set_permissions(_file: &mut File, _mode: u32) -> std::io::Result<()> {
// NOOP on windows
Ok(())
}
pub fn make_temp(
dir: Option<&Path>,
prefix: Option<&str>,
suffix: Option<&str>,
is_dir: bool,
) -> std::io::Result<PathBuf> {
let prefix_ = prefix.unwrap_or("");
let suffix_ = suffix.unwrap_or("");
let mut buf: PathBuf = match dir {
Some(ref p) => p.to_path_buf(),
None => std::env::temp_dir(),
}
.join("_");
let mut rng = rand::thread_rng();
loop {
let unique = rng.gen::<u32>();
buf.set_file_name(format!("{}{:08x}{}", prefix_, unique, suffix_));
let r = if is_dir {
let mut builder = DirBuilder::new();
set_dir_permission(&mut builder, 0o700);
builder.create(buf.as_path())
} else {
let mut open_options = OpenOptions::new();
open_options.write(true).create_new(true);
#[cfg(unix)]
open_options.mode(0o600);
open_options.open(buf.as_path())?;
Ok(())
};
match r {
Err(ref e) if e.kind() == ErrorKind::AlreadyExists => continue,
Ok(_) => return Ok(buf),
Err(e) => return Err(e),
}
}
}
pub fn mkdir(path: &Path, mode: u32, recursive: bool) -> std::io::Result<()> {
let mut builder = DirBuilder::new();
builder.recursive(recursive);
set_dir_permission(&mut builder, mode);
builder.create(path)
}
#[cfg(unix)]
fn set_dir_permission(builder: &mut DirBuilder, mode: u32) {
let mode = mode & 0o777;
debug!("set dir mode to {:o}", mode);
builder.mode(mode);
}
#[cfg(not(unix))]
fn set_dir_permission(_builder: &mut DirBuilder, _mode: u32) {
// NOOP on windows
}
#[cfg(unix)]
pub fn chown(path: &str, uid: u32, gid: u32) -> Result<(), ErrBox> {
let nix_uid = Uid::from_raw(uid);
let nix_gid = Gid::from_raw(gid);
unix_chown(path, Option::Some(nix_uid), Option::Some(nix_gid))
.map_err(ErrBox::from)
}
#[cfg(not(unix))]
pub fn chown(_path: &str, _uid: u32, _gid: u32) -> Result<(), ErrBox> {
// FAIL on Windows
// TODO: implement chown for Windows
let e = std::io::Error::new(
std::io::ErrorKind::Other,
"Not implemented".to_string(),
);
Err(ErrBox::from(e))
}
/// Normalize all itermediate components of the path (ie. remove "./" and "../" components).
/// Similar to `fs::canonicalize()` but doesn't resolve symlinks.
///
@ -171,7 +84,7 @@ pub fn resolve_from_cwd(path: &Path) -> Result<PathBuf, ErrBox> {
let resolved_path = if path.is_absolute() {
path.to_owned()
} else {
let cwd = std::env::current_dir().unwrap();
let cwd = current_dir().unwrap();
cwd.join(path)
};
@ -184,19 +97,19 @@ mod tests {
#[test]
fn resolve_from_cwd_child() {
let cwd = std::env::current_dir().unwrap();
let cwd = current_dir().unwrap();
assert_eq!(resolve_from_cwd(Path::new("a")).unwrap(), cwd.join("a"));
}
#[test]
fn resolve_from_cwd_dot() {
let cwd = std::env::current_dir().unwrap();
let cwd = current_dir().unwrap();
assert_eq!(resolve_from_cwd(Path::new(".")).unwrap(), cwd);
}
#[test]
fn resolve_from_cwd_parent() {
let cwd = std::env::current_dir().unwrap();
let cwd = current_dir().unwrap();
assert_eq!(resolve_from_cwd(Path::new("a/..")).unwrap(), cwd);
}

20
cli/js/lib.deno.ns.d.ts vendored
View file

@ -1291,25 +1291,25 @@ declare namespace Deno {
// @url js/link.d.ts
/** Creates `newname` as a hard link to `oldname`.
/** Creates `newpath` as a hard link to `oldpath`.
*
* Deno.linkSync("old/name", "new/name");
*
* Requires `allow-read` and `allow-write` permissions. */
export function linkSync(oldname: string, newname: string): void;
export function linkSync(oldpath: string, newpath: string): void;
/** Creates `newname` as a hard link to `oldname`.
/** Creates `newpath` as a hard link to `oldpath`.
*
* await Deno.link("old/name", "new/name");
*
* Requires `allow-read` and `allow-write` permissions. */
export function link(oldname: string, newname: string): Promise<void>;
export function link(oldpath: string, newpath: string): Promise<void>;
// @url js/symlink.d.ts
/** **UNSTABLE**: `type` argument type may be changed to `"dir" | "file"`.
*
* Creates `newname` as a symbolic link to `oldname`. The type argument can be
* Creates `newpath` as a symbolic link to `oldpath`. The type argument can be
* set to `dir` or `file`. Is only available on Windows and ignored on other
* platforms.
*
@ -1317,14 +1317,14 @@ declare namespace Deno {
*
* Requires `allow-read` and `allow-write` permissions. */
export function symlinkSync(
oldname: string,
newname: string,
oldpath: string,
newpath: string,
type?: string
): void;
/** **UNSTABLE**: `type` argument may be changed to "dir" | "file"
*
* Creates `newname` as a symbolic link to `oldname`. The type argument can be
* Creates `newpath` as a symbolic link to `oldpath`. The type argument can be
* set to `dir` or `file`. Is only available on Windows and ignored on other
* platforms.
*
@ -1332,8 +1332,8 @@ declare namespace Deno {
*
* Requires `allow-read` and `allow-write` permissions. */
export function symlink(
oldname: string,
newname: string,
oldpath: string,
newpath: string,
type?: string
): Promise<void>;

8
cli/js/ops/fs/link.ts
View file

@ -1,10 +1,10 @@
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { sendSync, sendAsync } from "../dispatch_json.ts";
export function linkSync(oldname: string, newname: string): void {
sendSync("op_link", { oldname, newname });
export function linkSync(oldpath: string, newpath: string): void {
sendSync("op_link", { oldpath, newpath });
}
export async function link(oldname: string, newname: string): Promise<void> {
await sendAsync("op_link", { oldname, newname });
export async function link(oldpath: string, newpath: string): Promise<void> {
await sendAsync("op_link", { oldpath, newpath });
}

12
cli/js/ops/fs/symlink.ts
View file

@ -4,23 +4,23 @@ import * as util from "../../util.ts";
import { build } from "../../build.ts";
export function symlinkSync(
oldname: string,
newname: string,
oldpath: string,
newpath: string,
type?: string
): void {
if (build.os === "win" && type) {
return util.notImplemented();
}
sendSync("op_symlink", { oldname, newname });
sendSync("op_symlink", { oldpath, newpath });
}
export async function symlink(
oldname: string,
newname: string,
oldpath: string,
newpath: string,
type?: string
): Promise<void> {
if (build.os === "win" && type) {
return util.notImplemented();
}
await sendAsync("op_symlink", { oldname, newname });
await sendAsync("op_symlink", { oldpath, newpath });
}

244
cli/ops/fs.rs
View file

@ -2,23 +2,20 @@
// Some deserializer fields are only used on Unix and Windows build fails without it
use super::dispatch_json::{blocking_json, Deserialize, JsonOp, Value};
use super::io::{FileMetadata, StreamResource, StreamResourceHolder};
use crate::fs as deno_fs;
use crate::fs::resolve_from_cwd;
use crate::op_error::OpError;
use crate::ops::dispatch_json::JsonResult;
use crate::state::State;
use deno_core::*;
use futures::future::FutureExt;
use remove_dir_all::remove_dir_all;
use std;
use std::convert::From;
use std::fs;
use std::env::{current_dir, set_current_dir, temp_dir};
use std::io::SeekFrom;
use std::path::Path;
use std::path::{Path, PathBuf};
use std::time::UNIX_EPOCH;
use tokio;
#[cfg(unix)]
use std::os::unix::fs::{MetadataExt, OpenOptionsExt, PermissionsExt};
use rand::{thread_rng, Rng};
pub fn init(i: &mut Isolate, s: &State) {
i.register_op("op_open", s.stateful_json_op(op_open));
@ -72,16 +69,19 @@ fn op_open(
_zero_copy: Option<ZeroCopyBuf>,
) -> Result<JsonOp, OpError> {
let args: OpenArgs = serde_json::from_value(args)?;
let path = deno_fs::resolve_from_cwd(Path::new(&args.path))?;
let path = resolve_from_cwd(Path::new(&args.path))?;
let state_ = state.clone();
let mut open_options = if let Some(mode) = args.mode {
#[allow(unused_mut)]
let mut std_options = fs::OpenOptions::new();
let mut std_options = std::fs::OpenOptions::new();
// mode only used if creating the file on Unix
// if not specified, defaults to 0o666
#[cfg(unix)]
std_options.mode(mode & 0o777);
{
use std::os::unix::fs::OpenOptionsExt;
std_options.mode(mode & 0o777);
}
#[cfg(not(unix))]
let _ = mode; // avoid unused warning
tokio::fs::OpenOptions::from(std_options)
@ -287,7 +287,7 @@ fn op_chdir(
_zero_copy: Option<ZeroCopyBuf>,
) -> Result<JsonOp, OpError> {
let args: ChdirArgs = serde_json::from_value(args)?;
std::env::set_current_dir(&args.directory)?;
set_current_dir(&args.directory)?;
Ok(JsonOp::Sync(json!({})))
}
@ -306,15 +306,22 @@ fn op_mkdir(
_zero_copy: Option<ZeroCopyBuf>,
) -> Result<JsonOp, OpError> {
let args: MkdirArgs = serde_json::from_value(args)?;
let path = deno_fs::resolve_from_cwd(Path::new(&args.path))?;
let mode = args.mode.unwrap_or(0o777);
let path = resolve_from_cwd(Path::new(&args.path))?;
let mode = args.mode.unwrap_or(0o777) & 0o777;
state.check_write(&path)?;
let is_sync = args.promise_id.is_none();
blocking_json(is_sync, move || {
debug!("op_mkdir {} {:o} {}", path.display(), mode, args.recursive);
deno_fs::mkdir(&path, mode, args.recursive)?;
let mut builder = std::fs::DirBuilder::new();
builder.recursive(args.recursive);
#[cfg(unix)]
{
use std::os::unix::fs::DirBuilderExt;
builder.mode(mode);
}
builder.create(path)?;
Ok(json!({}))
})
}
@ -324,7 +331,6 @@ fn op_mkdir(
struct ChmodArgs {
promise_id: Option<u64>,
path: String,
#[allow(unused)]
mode: u32,
}
@ -334,20 +340,25 @@ fn op_chmod(
_zero_copy: Option<ZeroCopyBuf>,
) -> Result<JsonOp, OpError> {
let args: ChmodArgs = serde_json::from_value(args)?;
let path = deno_fs::resolve_from_cwd(Path::new(&args.path))?;
let path = resolve_from_cwd(Path::new(&args.path))?;
let mode = args.mode & 0o777;
state.check_write(&path)?;
let is_sync = args.promise_id.is_none();
blocking_json(is_sync, move || {
debug!("op_chmod {}", path.display());
// Still check file/dir exists on windows
let _metadata = fs::metadata(&path)?;
debug!("op_chmod {} {:o}", path.display(), mode);
#[cfg(unix)]
{
let mut permissions = _metadata.permissions();
permissions.set_mode(args.mode);
fs::set_permissions(&path, permissions)?;
use std::os::unix::fs::PermissionsExt;
let permissions = PermissionsExt::from_mode(mode);
std::fs::set_permissions(&path, permissions)?;
}
// TODO Implement chmod for Windows (#4357)
#[cfg(not(unix))]
{
// Still check file/dir exists on Windows
let _metadata = std::fs::metadata(&path)?;
}
Ok(json!({}))
})
@ -368,15 +379,28 @@ fn op_chown(
_zero_copy: Option<ZeroCopyBuf>,
) -> Result<JsonOp, OpError> {
let args: ChownArgs = serde_json::from_value(args)?;
let path = deno_fs::resolve_from_cwd(Path::new(&args.path))?;
let path = resolve_from_cwd(Path::new(&args.path))?;
state.check_write(&path)?;
let is_sync = args.promise_id.is_none();
blocking_json(is_sync, move || {
debug!("op_chown {}", path.display());
deno_fs::chown(args.path.as_ref(), args.uid, args.gid)?;
Ok(json!({}))
debug!("op_chown {} {} {}", path.display(), args.uid, args.gid);
#[cfg(unix)]
{
use nix::unistd::{chown, Gid, Uid};
let nix_uid = Uid::from_raw(args.uid);
let nix_gid = Gid::from_raw(args.gid);
chown(&path, Option::Some(nix_uid), Option::Some(nix_gid))?;
Ok(json!({}))
}
// TODO Implement chown for Windows
#[cfg(not(unix))]
{
// Still check file/dir exists on Windows
let _metadata = std::fs::metadata(&path)?;
return Err(OpError::not_implemented());
}
})
}
@ -394,22 +418,22 @@ fn op_remove(
_zero_copy: Option<ZeroCopyBuf>,
) -> Result<JsonOp, OpError> {
let args: RemoveArgs = serde_json::from_value(args)?;
let path = deno_fs::resolve_from_cwd(Path::new(&args.path))?;
let path = resolve_from_cwd(Path::new(&args.path))?;
let recursive = args.recursive;
state.check_write(&path)?;
let is_sync = args.promise_id.is_none();
blocking_json(is_sync, move || {
debug!("op_remove {}", path.display());
let metadata = fs::symlink_metadata(&path)?;
let metadata = std::fs::symlink_metadata(&path)?;
debug!("op_remove {} {}", path.display(), recursive);
let file_type = metadata.file_type();
if file_type.is_file() || file_type.is_symlink() {
fs::remove_file(&path)?;
std::fs::remove_file(&path)?;
} else if recursive {
remove_dir_all(&path)?;
std::fs::remove_dir_all(&path)?;
} else {
fs::remove_dir(&path)?;
std::fs::remove_dir(&path)?;
}
Ok(json!({}))
})
@ -429,8 +453,8 @@ fn op_copy_file(
_zero_copy: Option<ZeroCopyBuf>,
) -> Result<JsonOp, OpError> {
let args: CopyFileArgs = serde_json::from_value(args)?;
let from = deno_fs::resolve_from_cwd(Path::new(&args.from))?;
let to = deno_fs::resolve_from_cwd(Path::new(&args.to))?;
let from = resolve_from_cwd(Path::new(&args.from))?;
let to = resolve_from_cwd(Path::new(&args.to))?;
state.check_read(&from)?;
state.check_write(&to)?;
@ -446,7 +470,7 @@ fn op_copy_file(
}
// returns size of from as u64 (we ignore)
fs::copy(&from, &to)?;
std::fs::copy(&from, &to)?;
Ok(json!({}))
})
}
@ -463,7 +487,7 @@ macro_rules! to_seconds {
#[inline(always)]
fn get_stat_json(
metadata: fs::Metadata,
metadata: std::fs::Metadata,
maybe_name: Option<String>,
) -> JsonResult {
// Unix stat member (number types only). 0 if not on unix.
@ -480,6 +504,8 @@ fn get_stat_json(
}};
}
#[cfg(unix)]
use std::os::unix::fs::MetadataExt;
let mut json_val = json!({
"isFile": metadata.is_file(),
"isSymlink": metadata.file_type().is_symlink(),
@ -526,7 +552,7 @@ fn op_stat(
_zero_copy: Option<ZeroCopyBuf>,
) -> Result<JsonOp, OpError> {
let args: StatArgs = serde_json::from_value(args)?;
let path = deno_fs::resolve_from_cwd(Path::new(&args.path))?;
let path = resolve_from_cwd(Path::new(&args.path))?;
let lstat = args.lstat;
state.check_read(&path)?;
@ -535,9 +561,9 @@ fn op_stat(
blocking_json(is_sync, move || {
debug!("op_stat {} {}", path.display(), lstat);
let metadata = if lstat {
fs::symlink_metadata(&path)?
std::fs::symlink_metadata(&path)?
} else {
fs::metadata(&path)?
std::fs::metadata(&path)?
};
get_stat_json(metadata, None)
})
@ -556,7 +582,7 @@ fn op_realpath(
_zero_copy: Option<ZeroCopyBuf>,
) -> Result<JsonOp, OpError> {
let args: RealpathArgs = serde_json::from_value(args)?;
let path = deno_fs::resolve_from_cwd(Path::new(&args.path))?;
let path = resolve_from_cwd(Path::new(&args.path))?;
state.check_read(&path)?;
@ -565,7 +591,7 @@ fn op_realpath(
debug!("op_realpath {}", path.display());
// corresponds to the realpath on Unix and
// CreateFile and GetFinalPathNameByHandle on Windows
let realpath = fs::canonicalize(&path)?;
let realpath = std::fs::canonicalize(&path)?;
let mut realpath_str =
realpath.to_str().unwrap().to_owned().replace("\\", "/");
if cfg!(windows) {
@ -588,14 +614,14 @@ fn op_read_dir(
_zero_copy: Option<ZeroCopyBuf>,
) -> Result<JsonOp, OpError> {
let args: ReadDirArgs = serde_json::from_value(args)?;
let path = deno_fs::resolve_from_cwd(Path::new(&args.path))?;
let path = resolve_from_cwd(Path::new(&args.path))?;
state.check_read(&path)?;
let is_sync = args.promise_id.is_none();
blocking_json(is_sync, move || {
debug!("op_read_dir {}", path.display());
let entries: Vec<_> = fs::read_dir(path)?
let entries: Vec<_> = std::fs::read_dir(path)?
.filter_map(|entry| {
let entry = entry.unwrap();
let metadata = entry.metadata().unwrap();
@ -627,8 +653,8 @@ fn op_rename(
_zero_copy: Option<ZeroCopyBuf>,
) -> Result<JsonOp, OpError> {
let args: RenameArgs = serde_json::from_value(args)?;
let oldpath = deno_fs::resolve_from_cwd(Path::new(&args.oldpath))?;
let newpath = deno_fs::resolve_from_cwd(Path::new(&args.newpath))?;
let oldpath = resolve_from_cwd(Path::new(&args.oldpath))?;
let newpath = resolve_from_cwd(Path::new(&args.newpath))?;
state.check_read(&oldpath)?;
state.check_write(&oldpath)?;
@ -637,7 +663,7 @@ fn op_rename(
let is_sync = args.promise_id.is_none();
blocking_json(is_sync, move || {
debug!("op_rename {} {}", oldpath.display(), newpath.display());
fs::rename(&oldpath, &newpath)?;
std::fs::rename(&oldpath, &newpath)?;
Ok(json!({}))
})
}
@ -646,8 +672,8 @@ fn op_rename(
#[serde(rename_all = "camelCase")]
struct LinkArgs {
promise_id: Option<u64>,
oldname: String,
newname: String,
oldpath: String,
newpath: String,
}
fn op_link(
@ -656,16 +682,16 @@ fn op_link(
_zero_copy: Option<ZeroCopyBuf>,
) -> Result<JsonOp, OpError> {
let args: LinkArgs = serde_json::from_value(args)?;
let oldname = deno_fs::resolve_from_cwd(Path::new(&args.oldname))?;
let newname = deno_fs::resolve_from_cwd(Path::new(&args.newname))?;
let oldpath = resolve_from_cwd(Path::new(&args.oldpath))?;
let newpath = resolve_from_cwd(Path::new(&args.newpath))?;
state.check_read(&oldname)?;
state.check_write(&newname)?;
state.check_read(&oldpath)?;
state.check_write(&newpath)?;
let is_sync = args.promise_id.is_none();
blocking_json(is_sync, move || {
debug!("op_link {} {}", oldname.display(), newname.display());
std::fs::hard_link(&oldname, &newname)?;
debug!("op_link {} {}", oldpath.display(), newpath.display());
std::fs::hard_link(&oldpath, &newpath)?;
Ok(json!({}))
})
}
@ -674,8 +700,8 @@ fn op_link(
#[serde(rename_all = "camelCase")]
struct SymlinkArgs {
promise_id: Option<u64>,
oldname: String,
newname: String,
oldpath: String,
newpath: String,
}
fn op_symlink(
@ -684,20 +710,28 @@ fn op_symlink(
_zero_copy: Option<ZeroCopyBuf>,
) -> Result<JsonOp, OpError> {
let args: SymlinkArgs = serde_json::from_value(args)?;
let oldname = deno_fs::resolve_from_cwd(Path::new(&args.oldname))?;
let newname = deno_fs::resolve_from_cwd(Path::new(&args.newname))?;
let oldpath = resolve_from_cwd(Path::new(&args.oldpath))?;
let newpath = resolve_from_cwd(Path::new(&args.newpath))?;
state.check_write(&newpath)?;
state.check_write(&newname)?;
// TODO Use type for Windows.
if cfg!(not(unix)) {
return Err(OpError::other("Not implemented".to_string()));
}
let is_sync = args.promise_id.is_none();
blocking_json(is_sync, move || {
debug!("op_symlink {} {}", oldname.display(), newname.display());
debug!("op_symlink {} {}", oldpath.display(), newpath.display());
#[cfg(unix)]
std::os::unix::fs::symlink(&oldname, &newname)?;
Ok(json!({}))
{
use std::os::unix::fs::symlink;
symlink(&oldpath, &newpath)?;
Ok(json!({}))
}
// TODO Implement symlink, use type for Windows
#[cfg(not(unix))]
{
// Unlike with chmod/chown, here we don't
// require `oldpath` to exist on Windows
let _ = oldpath; // avoid unused warning
return Err(OpError::other("Not implemented".to_string()));
}
})
}
@ -714,14 +748,14 @@ fn op_read_link(
_zero_copy: Option<ZeroCopyBuf>,
) -> Result<JsonOp, OpError> {
let args: ReadLinkArgs = serde_json::from_value(args)?;
let path = deno_fs::resolve_from_cwd(Path::new(&args.path))?;
let path = resolve_from_cwd(Path::new(&args.path))?;
state.check_read(&path)?;
let is_sync = args.promise_id.is_none();
blocking_json(is_sync, move || {
debug!("op_read_link {}", path.display());
let path = fs::read_link(&path)?;
let path = std::fs::read_link(&path)?;
let path_str = path.to_str().unwrap();
Ok(json!(path_str))
@ -742,7 +776,7 @@ fn op_truncate(
_zero_copy: Option<ZeroCopyBuf>,
) -> Result<JsonOp, OpError> {
let args: TruncateArgs = serde_json::from_value(args)?;
let path = deno_fs::resolve_from_cwd(Path::new(&args.path))?;
let path = resolve_from_cwd(Path::new(&args.path))?;
let len = args.len;
state.check_write(&path)?;
@ -750,12 +784,57 @@ fn op_truncate(
let is_sync = args.promise_id.is_none();
blocking_json(is_sync, move || {
debug!("op_truncate {} {}", path.display(), len);
let f = fs::OpenOptions::new().write(true).open(&path)?;
let f = std::fs::OpenOptions::new().write(true).open(&path)?;
f.set_len(len)?;
Ok(json!({}))
})
}
fn make_temp(
dir: Option<&Path>,
prefix: Option<&str>,
suffix: Option<&str>,
is_dir: bool,
) -> std::io::Result<PathBuf> {
let prefix_ = prefix.unwrap_or("");
let suffix_ = suffix.unwrap_or("");
let mut buf: PathBuf = match dir {
Some(ref p) => p.to_path_buf(),
None => temp_dir(),
}
.join("_");
let mut rng = thread_rng();
loop {
let unique = rng.gen::<u32>();
buf.set_file_name(format!("{}{:08x}{}", prefix_, unique, suffix_));
let r = if is_dir {
#[allow(unused_mut)]
let mut builder = std::fs::DirBuilder::new();
#[cfg(unix)]
{
use std::os::unix::fs::DirBuilderExt;
builder.mode(0o700);
}
builder.create(buf.as_path())
} else {
let mut open_options = std::fs::OpenOptions::new();
open_options.write(true).create_new(true);
#[cfg(unix)]
{
use std::os::unix::fs::OpenOptionsExt;
open_options.mode(0o600);
}
open_options.open(buf.as_path())?;
Ok(())
};
match r {
Err(ref e) if e.kind() == std::io::ErrorKind::AlreadyExists => continue,
Ok(_) => return Ok(buf),
Err(e) => return Err(e),
}
}
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
struct MakeTempArgs {
@ -772,21 +851,18 @@ fn op_make_temp_dir(
) -> Result<JsonOp, OpError> {
let args: MakeTempArgs = serde_json::from_value(args)?;
let dir = args
.dir
.map(|s| deno_fs::resolve_from_cwd(Path::new(&s)).unwrap());
let dir = args.dir.map(|s| resolve_from_cwd(Path::new(&s)).unwrap());
let prefix = args.prefix.map(String::from);
let suffix = args.suffix.map(String::from);
state
.check_write(dir.clone().unwrap_or_else(std::env::temp_dir).as_path())?;
state.check_write(dir.clone().unwrap_or_else(temp_dir).as_path())?;
let is_sync = args.promise_id.is_none();
blocking_json(is_sync, move || {
// TODO(piscisaureus): use byte vector for paths, not a string.
// See https://github.com/denoland/deno/issues/627.
// We can't assume that paths are always valid utf8 strings.
let path = deno_fs::make_temp(
let path = make_temp(
// Converting Option<String> to Option<&str>
dir.as_ref().map(|x| &**x),
prefix.as_ref().map(|x| &**x),
@ -806,21 +882,18 @@ fn op_make_temp_file(
) -> Result<JsonOp, OpError> {
let args: MakeTempArgs = serde_json::from_value(args)?;
let dir = args
.dir
.map(|s| deno_fs::resolve_from_cwd(Path::new(&s)).unwrap());
let dir = args.dir.map(|s| resolve_from_cwd(Path::new(&s)).unwrap());
let prefix = args.prefix.map(String::from);
let suffix = args.suffix.map(String::from);
state
.check_write(dir.clone().unwrap_or_else(std::env::temp_dir).as_path())?;
state.check_write(dir.clone().unwrap_or_else(temp_dir).as_path())?;
let is_sync = args.promise_id.is_none();
blocking_json(is_sync, move || {
// TODO(piscisaureus): use byte vector for paths, not a string.
// See https://github.com/denoland/deno/issues/627.
// We can't assume that paths are always valid utf8 strings.
let path = deno_fs::make_temp(
let path = make_temp(
// Converting Option<String> to Option<&str>
dir.as_ref().map(|x| &**x),
prefix.as_ref().map(|x| &**x),
@ -848,7 +921,10 @@ fn op_utime(
_zero_copy: Option<ZeroCopyBuf>,
) -> Result<JsonOp, OpError> {
let args: UtimeArgs = serde_json::from_value(args)?;
state.check_write(Path::new(&args.path))?;
let path = resolve_from_cwd(Path::new(&args.path))?;
state.check_write(&path)?;
let is_sync = args.promise_id.is_none();
blocking_json(is_sync, move || {
debug!("op_utime {} {} {}", args.path, args.atime, args.mtime);
@ -862,7 +938,7 @@ fn op_cwd(
_args: Value,
_zero_copy: Option<ZeroCopyBuf>,
) -> Result<JsonOp, OpError> {
let path = std::env::current_dir()?;
let path = current_dir()?;
let path_str = path.into_os_string().into_string().unwrap();
Ok(JsonOp::Sync(json!(path_str)))
}