add {-} format for exec

src/exec/mod.rs

@@ -19,6 +19,8 @@ use self::command::execute_command;
 use self::input::{basename, dirname, remove_extension};
 pub use self::job::{batch, job};
 use self::token::Token;
+use crate::filesystem::strip_current_dir;
+
 
 /// Execution mode of the command
 #[derive(Debug, Clone, Copy, PartialEq)]
@@ -72,7 +74,7 @@ impl CommandTemplate {
         S: AsRef<str>,
     {
         lazy_static! {
-            static ref PLACEHOLDER_PATTERN: Regex = Regex::new(r"\{(/?\.?|//)\}").unwrap();
+            static ref PLACEHOLDER_PATTERN: Regex = Regex::new(r"\{(/?\.?|//|-)\}").unwrap();
         }
 
         let mut args = Vec::new();
@@ -98,6 +100,7 @@ impl CommandTemplate {
                     "{/}" => tokens.push(Token::Basename),
                     "{//}" => tokens.push(Token::Parent),
                     "{/.}" => tokens.push(Token::BasenameNoExt),
+                    "{-}" => tokens.push(Token::StripPrefix),
                     _ => unreachable!("Unhandled placeholder"),
                 }
 
@@ -231,6 +234,10 @@ impl ArgumentTemplate {
                         Placeholder => {
                             s.push(Self::replace_separator(path.as_ref(), path_separator))
                         }
+                        StripPrefix => {
+                            let path = strip_current_dir(path);
+                            s.push(Self::replace_separator(path.as_ref(), path_separator))
+                        }
                         Text(ref string) => s.push(string),
                     }
                 }

src/exec/token.rs

@@ -11,6 +11,7 @@ pub enum Token {
     Parent,
     NoExt,
     BasenameNoExt,
+    StripPrefix,
     Text(String),
 }
 
@@ -22,6 +23,7 @@ impl Display for Token {
             Token::Parent => f.write_str("{//}")?,
             Token::NoExt => f.write_str("{.}")?,
             Token::BasenameNoExt => f.write_str("{/.}")?,
+            Token::StripPrefix => f.write_str("{-}")?,
             Token::Text(ref string) => f.write_str(string)?,
         }
         Ok(())

tests/tests.rs

@@ -1363,6 +1363,16 @@ fn test_exec() {
         );
 
         te.assert_output(&["e1", "--exec", "printf", "%s.%s\n"], "./e1 e2.");
+
+        te.assert_output(
+            &["foo", "--exec", "echo", "{-}"],
+            "a.foo
+            one/b.foo
+            one/two/C.Foo2
+            one/two/c.foo
+            one/two/three/d.foo
+            one/two/three/directory_foo",
+        );
     }
 }