diff --git a/Cargo.lock b/Cargo.lock
index 05d340e5f6f..4ef0134d7de 100644
--- a/Cargo.lock
+++ b/Cargo.lock
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"checksum uuid 0.7.4 (registry+https://github.com/rust-lang/crates.io-index)" = "90dbc611eb48397705a6b0f6e917da23ae517e4d127123d2cf7674206627d32a"
"checksum vec_map 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "05c78687fb1a80548ae3250346c3db86a80a7cdd77bda190189f2d0a0987c81a"
diff --git a/crates/ra_tools/Cargo.toml b/crates/ra_tools/Cargo.toml
index a40a452aaa5..4c9aa1cc3f7 100644
--- a/crates/ra_tools/Cargo.toml
+++ b/crates/ra_tools/Cargo.toml
@@ -6,7 +6,6 @@ authors = ["rust-analyzer developers"]
publish = false
[dependencies]
-teraron = "0.1.0"
walkdir = "2.1.3"
itertools = "0.8.0"
clap = "2.32.0"
diff --git a/crates/ra_tools/src/lib.rs b/crates/ra_tools/src/lib.rs
index de8c472d153..c02dee9534e 100644
--- a/crates/ra_tools/src/lib.rs
+++ b/crates/ra_tools/src/lib.rs
@@ -11,8 +11,6 @@ use std::{
use itertools::Itertools;
-pub use teraron::{Mode, Overwrite, Verify};
-
pub use self::codegen::generate;
pub type Result<T> = std::result::Result<T, Box<dyn Error>>;
@@ -26,6 +24,13 @@ pub const SYNTAX_KINDS: &str = "crates/ra_parser/src/syntax_kind/generated.rs.te
pub const AST: &str = "crates/ra_syntax/src/ast/generated.rs";
const TOOLCHAIN: &str = "stable";
+#[derive(Debug, PartialEq, Eq, Clone, Copy)]
+pub enum Mode {
+ Overwrite,
+ Verify,
+}
+pub use Mode::*;
+
#[derive(Debug)]
pub struct Test {
pub name: String,
@@ -222,7 +227,7 @@ pub fn gen_tests(mode: Mode) -> Result<()> {
tests_dir.join(file_name)
}
};
- teraron::update(&path, &test.text, mode)?;
+ update(&path, &test.text, mode)?;
}
Ok(())
}
@@ -306,3 +311,20 @@ fn existing_tests(dir: &Path, ok: bool) -> Result<HashMap<String, (PathBuf, Test
}
Ok(res)
}
+
+/// A helper to update file on disk if it has changed.
+/// With verify = false,
+pub fn update(path: &Path, contents: &str, mode: Mode) -> Result<()> {
+ match fs::read_to_string(path) {
+ Ok(ref old_contents) if old_contents == contents => {
+ return Ok(());
+ }
+ _ => (),
+ }
+ if mode == Verify {
+ Err(format!("`{}` is not up-to-date", path.display()))?;
+ }
+ eprintln!("updating {}", path.display());
+ fs::write(path, contents)?;
+ Ok(())
+}