specify path to store the collection of spec files

src/extract.rs

@@ -60,10 +60,10 @@ pub struct Extract {
 
 impl Extract {
     pub fn exec(&self) -> Result<(), Error> {
-        let contents = self.target.load()?;
+        let contents = self.target.load(None)?;
         let spec = self.format.parse(&contents)?;
         let sections = extract_sections(&spec);
-        let local_path = self.target.local();
+        let local_path = self.target.local(None);
 
         if self.out.extension().is_some() {
             // assume a path with an extension is a single file

src/project.rs

@@ -55,6 +55,14 @@ pub struct Project {
     /// Glob patterns for spec files
     #[structopt(long = "spec-pattern")]
     spec_patterns: Vec<String>,
+
+    /// Path to store the collection of spec files
+    ///
+    /// The spec files are stored in a folder called `specs`. This folder is
+    /// stored at the root of the project by default. Use this argument to
+    /// specify a different location.
+    #[structopt(long = "spec-download-path", default_value = ".")]
+    pub spec_download_path: String,
 }
 
 impl Project {

src/report/lcov.rs

@@ -61,10 +61,7 @@ pub fn report(report: &ReportResult, dir: &Path) -> Result<(), Error> {
 }
 
 #[allow(clippy::cognitive_complexity)]
-pub fn report_source<Output: Write>(
-    report: &TargetReport,
-    output: &mut Output,
-) -> Result<(), Error> {
+fn report_source<Output: Write>(report: &TargetReport, output: &mut Output) -> Result<(), Error> {
     macro_rules! put {
         ($($arg:expr),* $(,)?) => {
             writeln!(output $(, $arg)*)?;
@@ -73,7 +70,7 @@ pub fn report_source<Output: Write>(
 
     put!("TN:Compliance");
     let relative =
-        pathdiff::diff_paths(report.target.path.local(), std::env::current_dir()?).unwrap();
+        pathdiff::diff_paths(report.target.path.local(None), std::env::current_dir()?).unwrap();
     put!("SF:{}", relative.display());
 
     // record all sections

src/report/mod.rs

@@ -115,7 +115,10 @@ impl Report {
         let contents: HashMap<_, _> = targets
             .par_iter()
             .map(|target| {
-                let contents = target.path.load().unwrap();
+                let contents = target
+                    .path
+                    .load(Some(&self.project.spec_download_path))
+                    .unwrap();
                 (target, contents)
             })
             .collect();

src/target.rs

@@ -72,10 +72,10 @@ impl TargetPath {
         Ok(Self::Path(path))
     }
 
-    pub fn load(&self) -> Result<String, Error> {
+    pub fn load(&self, spec_download_path: Option<&String>) -> Result<String, Error> {
         let mut contents = match self {
             Self::Url(url) => {
-                let path = self.local();
+                let path = self.local(spec_download_path);
                 if !path.exists() {
                     std::fs::create_dir_all(path.parent().unwrap())?;
 
@@ -103,10 +103,13 @@ impl TargetPath {
         Ok(contents)
     }
 
-    pub fn local(&self) -> PathBuf {
+    pub fn local(&self, spec_download_path: Option<&String>) -> PathBuf {
         match self {
             Self::Url(url) => {
                 let mut path = std::env::current_dir().unwrap();
+                if let Some(path_to_spec) = spec_download_path {
+                    path.push(path_to_spec);
+                }
                 path.push("specs");
                 path.push(url.host_str().expect("url should have host"));
                 path.extend(url.path_segments().expect("url should have path"));