feat: add the cppcheck runner

just the rust code for the cppcheck deepsource runner

Author: swarnim-deepsource

.gitignore

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+/target

Cargo.lock

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+[package]
+name = "cppcheck-deepsource"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+# serialize & deserialize
+serde = { version = "1.0.144", features = ["derive"] }
+# json support
+serde_json = "1.0.85"
+log = { version = "0.4.17" }
+atty = "0.2.14"
+walkdir = "2.3.2"
+quick-xml = { version = "0.28.0", features = ["serialize"] }
+

Cargo.toml

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+use std::path::PathBuf;
+
+use serde::Deserialize;
+
+#[derive(Default, Deserialize, Debug)]
+pub struct AnalyzerConfig {
+    files: Vec<PathBuf>,
+    #[serde(default)]
+    pub analyzer_meta: AnalyzerMeta,
+}
+
+impl AnalyzerConfig {
+    pub fn cxx_files(self) -> Vec<PathBuf> {
+        self.files
+            .into_iter()
+            .filter(|f| f.is_file())
+            .filter(|f| !f.is_symlink())
+            // ignore files > ~25MB in size
+            .filter(|f| {
+                !f.metadata()
+                    .map(|x| x.len() > 25_000_000)
+                    .unwrap_or_default()
+            })
+            .collect()
+    }
+}
+
+#[derive(Deserialize, Default, Debug)]
+pub struct AnalyzerMeta {
+    pub name: String,
+    pub enabled: bool,
+}