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merge_tools: ensure that temporary directory path is valid UTF-8

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Otherwise, command substitution would fail.
This commit is contained in:
Yuya Nishihara 2023-08-03 12:51:50 +09:00
parent d17ef14956
commit 673036a3aa
1 changed files with 16 additions and 12 deletions
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28
src/merge_tools.rs
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@ -14,7 +14,7 @@
use std::collections::HashMap;
use std::fs::File;
use std::io::Write;
use std::io::{self, Write};
use std::path::{Path, PathBuf};
use std::process::Command;
use std::sync::Arc;
@ -137,8 +137,8 @@ impl DiffWorkingCopies {
let left_wc_dir = self.left_working_copy_path();
let right_wc_dir = self.right_working_copy_path();
maplit::hashmap! {
"left" => left_wc_dir.to_str().expect("temp_dir would be valid utf-8"),
"right" => right_wc_dir.to_str().expect("temp_dir would be valid utf-8"),
"left" => left_wc_dir.to_str().expect("temp_dir should be valid utf-8"),
"right" => right_wc_dir.to_str().expect("temp_dir should be valid utf-8"),
}
}
}
@ -156,10 +156,7 @@ fn check_out_trees(
.map(|(path, _value)| path)
.collect_vec();
let temp_dir = tempfile::Builder::new()
.prefix("jj-diff-")
.tempdir()
.map_err(DiffCheckoutError::SetUpDir)?;
let temp_dir = new_utf8_temp_dir("jj-diff-").map_err(DiffCheckoutError::SetUpDir)?;
let left_wc_dir = temp_dir.path().join("left");
let left_state_dir = temp_dir.path().join("left_state");
let right_wc_dir = temp_dir.path().join("right");
@ -200,6 +197,16 @@ fn check_out(
Ok(tree_state)
}
fn new_utf8_temp_dir(prefix: &str) -> io::Result<TempDir> {
let temp_dir = tempfile::Builder::new().prefix(prefix).tempdir()?;
if temp_dir.path().to_str().is_none() {
// Not using .display() as we know the path contains unprintable character
let message = format!("path {:?} is not valid UTF-8", temp_dir.path());
return Err(io::Error::new(io::ErrorKind::InvalidData, message));
}
Ok(temp_dir)
}
fn set_readonly_recursively(path: &Path) -> Result<(), std::io::Error> {
// Directory permission is unchanged since files under readonly directory cannot
// be removed.
@ -265,10 +272,7 @@ pub fn run_mergetool(
"output" => initial_output_content.clone(),
};
let temp_dir = tempfile::Builder::new()
.prefix("jj-resolve-")
.tempdir()
.map_err(ExternalToolError::SetUpDir)?;
let temp_dir = new_utf8_temp_dir("jj-resolve-").map_err(ExternalToolError::SetUpDir)?;
let suffix = repo_path
.components()
.last()
@ -289,7 +293,7 @@ pub fn run_mergetool(
*role,
path.into_os_string()
.into_string()
.expect("temp_dir would be valid utf-8"),
.expect("temp_dir should be valid utf-8"),
))
})
.try_collect()?;