chore(tools/rust-crates-advisory): move custom checker to user dir r/5258

Profpatsch originally implemented an advisory checker from scratch in
Rust. We now ended up just using cargo-audit for the global checks
exposed via CI and the custom implementation is unused. To clean up
//tools/rust-crates-advisory a bit, we can move the unused parts to his
user directory.

Change-Id: Iacbd27c163edd07c804220fd1b3569c23aebd3e7
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7171
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>

1 files changed, 0 insertions, 119 deletions

diff --git a/tools/rust-crates-advisory/check-security-advisory.rs b/tools/rust-crates-advisory/check-security-advisory.rs
deleted file mode 100644
index e76b090abccb..000000000000
--- a/tools/rust-crates-advisory/check-security-advisory.rs
+++ /dev/null
@@ -1,119 +0,0 @@
-extern crate semver;
-extern crate toml;
-
-use std::io::Write;
-
-/// reads a security advisory of the form
-/// https://github.com/RustSec/advisory-db/blob/a24932e220dfa9be8b0b501210fef8a0bc7ef43e/EXAMPLE_ADVISORY.md
-/// and a crate version number,
-/// and returns 0 if the crate version is patched
-/// and returns 1 if the crate version is *not* patched
-///
-/// If PRINT_ADVISORY is set, the advisory is printed if it matches.
-
-fn main() {
-    let mut args = std::env::args_os();
-    let file = args.nth(1).expect("security advisory md file is $1");
-    let crate_version = args
-        .nth(0)
-        .expect("crate version is $2")
-        .into_string()
-        .expect("crate version string not utf8");
-    let crate_version = semver::Version::parse(&crate_version)
-        .expect(&format!("this is not a semver version: {}", &crate_version));
-    let filename = file.to_string_lossy();
-
-    let content = std::fs::read(&file).expect(&format!("could not read {}", filename));
-    let content = std::str::from_utf8(&content)
-        .expect(&format!("file {} was not encoded as utf-8", filename));
-    let content = content.trim_start();
-
-    let toml_start = content
-        .strip_prefix("```toml")
-        .expect(&format!("file did not start with ```toml: {}", filename));
-    let toml_end_index = toml_start.find("```").expect(&format!(
-        "the toml section did not end, no `` found: {}",
-        filename
-    ));
-    let toml = &toml_start[..toml_end_index];
-    let toml: toml::Value = toml::de::from_slice(toml.as_bytes())
-        .expect(&format!("could not parse toml: {}", filename));
-
-    let versions = toml
-        .as_table()
-        .expect(&format!("the toml is not a table: {}", filename))
-        .get("versions")
-        .expect(&format!(
-            "the toml does not contain the versions field: {}",
-            filename
-        ))
-        .as_table()
-        .expect(&format!(
-            "the toml versions field must be a table: {}",
-            filename
-        ));
-
-    let unaffected = match versions.get("unaffected") {
-        Some(u) => u
-            .as_array()
-            .expect(&format!(
-                "the toml versions.unaffected field must be a list of semvers: {}",
-                filename
-            ))
-            .iter()
-            .map(|v| {
-                semver::VersionReq::parse(
-                    v.as_str()
-                        .expect(&format!("the version field {} is not a string", v)),
-                )
-                .expect(&format!(
-                    "the version field {} is not a valid semver VersionReq",
-                    v
-                ))
-            })
-            .collect(),
-        None => vec![],
-    };
-
-    let mut patched: Vec<semver::VersionReq> = versions
-        .get("patched")
-        .expect(&format!(
-            "the toml versions.patched field must exist: {}",
-            filename
-        ))
-        .as_array()
-        .expect(&format!(
-            "the toml versions.patched field must be a list of semvers: {}",
-            filename
-        ))
-        .iter()
-        .map(|v| {
-            semver::VersionReq::parse(
-                v.as_str()
-                    .expect(&format!("the version field {} is not a string", v)),
-            )
-            .expect(&format!(
-                "the version field {} is not a valid semver VersionReq",
-                v
-            ))
-        })
-        .collect();
-
-    patched.extend_from_slice(&unaffected[..]);
-    let is_patched_or_unaffected = patched.iter().any(|req| req.matches(&crate_version));
-
-    if is_patched_or_unaffected {
-        std::process::exit(0);
-    } else {
-        if std::env::var_os("PRINT_ADVISORY").is_some() {
-            write!(
-                std::io::stderr(),
-                "Advisory {} matched!\n{}\n",
-                filename,
-                content
-            )
-            .unwrap();
-        }
-        std::process::exit(1);
-    }
-}