Add force flag to allow user defined project name

src/main.rs

@@ -61,6 +61,9 @@ pub struct Args {
     git: String,
     #[structopt(long = "name", short = "n")]
     name: Option<String>,
+    /// Enforce to create a new project without case conversion of project name
+    #[structopt(long = "force", short = "f")]
+    force: bool,
 }
 
 main!(|_cli: Cli| {
@@ -73,6 +76,7 @@ main!(|_cli: Cli| {
         Some(ref n) => ProjectName::new(n),
         None => ProjectName::new(&interactive::name()?),
     };
+    let force = args.force;
 
     println!(
         "{} {} `{}`{}",
@@ -82,9 +86,10 @@ main!(|_cli: Cli| {
         style("...").bold()
     );
 
+    let dir_name = if force { name.raw() } else { name.kebab_case() };
     let project_dir = env::current_dir()
         .unwrap_or_else(|_e| ".".into())
-        .join(&name.kebab_case());
+        .join(dir_name);
 
     ensure!(
         !project_dir.exists(),
@@ -95,7 +100,7 @@ main!(|_cli: Cli| {
     git::create(&project_dir, args)?;
     git::remove_history(&project_dir)?;
 
-    let template = template::substitute(&name)?;
+    let template = template::substitute(&name, force)?;
 
     let pbar = progressbar::new();
     pbar.tick();

src/projectname.rs

@@ -13,6 +13,10 @@ impl ProjectName {
         }
     }
 
+    pub fn raw(&self) -> String {
+        self.user_input.to_owned()
+    }
+
     pub fn kebab_case(&self) -> String {
         self.user_input.to_kebab_case()
     }

src/template.rs

@@ -13,11 +13,13 @@ fn engine() -> liquid::Parser {
     liquid::ParserBuilder::new().build()
 }
 
-pub fn substitute(name: &ProjectName) -> Result<liquid::Object> {
+pub fn substitute(name: &ProjectName, force: bool) -> Result<liquid::Object> {
+    let project_name = if force { name.raw() } else { name.kebab_case() };
+
     let mut template = liquid::Object::new();
     template.insert(
         String::from("project-name"),
-        liquid::Value::scalar(&name.kebab_case()),
+        liquid::Value::scalar(project_name),
     );
     template.insert(
         String::from("crate_name"),

tests/integration/basics.rs

@@ -16,8 +16,7 @@ name = "{{project-name}}"
 description = "A wonderful project"
 version = "0.1.0"
 "#,
-        )
-        .init_git()
+        ).init_git()
         .build();
 
     let dir = dir("main").build();
@@ -50,8 +49,7 @@ name = "{{project-name}}"
 description = "A wonderful project"
 version = "0.1.0"
 "#,
-        )
-        .init_git()
+        ).init_git()
         .build();
 
     let dir = dir("main").build();
@@ -82,8 +80,7 @@ fn it_substitutes_cratename_in_a_rust_file() {
             r#"
 extern crate {{crate_name}};          
 "#,
-        )
-        .init_git()
+        ).init_git()
         .build();
 
     let dir = dir("main").build();
@@ -115,8 +112,7 @@ name = "{{project-name}}"
 description = "A wonderful project"
 version = "0.1.0"
 "#,
-        )
-        .init_git()
+        ).init_git()
         .build();
 
     let dir = dir("main").build();
@@ -138,3 +134,37 @@ version = "0.1.0"
             .contains("foobar-project")
     );
 }
+
+#[test]
+fn it_allows_user_defined_projectname_when_passing_force_flag() {
+    let template = dir("template")
+        .file(
+            "Cargo.toml",
+            r#"[package]
+name = "{{project-name}}"
+description = "A wonderful project"
+version = "0.1.0"
+"#,
+        ).init_git()
+        .build();
+
+    let dir = dir("main").build();
+
+    Command::main_binary()
+        .unwrap()
+        .arg("generate")
+        .arg("--git")
+        .arg(template.path())
+        .arg("--name")
+        .arg("foobar_project")
+        .arg("--force")
+        .current_dir(&dir.path())
+        .assert()
+        .success()
+        .stdout(predicates::str::contains("Done!").from_utf8());
+
+    assert!(
+        dir.read("foobar_project/Cargo.toml")
+            .contains("foobar_project")
+    );
+}