[DOTSLASH] Prioritize executable files (withfig#290)

* Prioritizze executables in file lists for dotslash

* Remove characters from ls -F

* Remove characters from ls -F

dev/dotslash.ts

@@ -1,10 +1,55 @@
-// use to complete on files when they are the first string in a branch
+const dotslashGenerator: Fig.Generator = {
+  script: function (context) {
+    let path = context[context.length - 1];
+
+    if (path.includes("/")) {
+      const components = path.split("/");
+      components.pop();
+      path = components.join("/");
+    } else {
+      path = ".";
+    }
+
+    // escape spaces in path
+    path = path.split(" ").join("\\");
+
+    // output full filepath for each item in `path` folder
+    return `ls -1AF ${path} | xargs -I '{}' echo $PWD/{} `;
+  },
+
+  postProcess: function (files) {
+    return files.split("\n").map((path) => {
+      const components = path.split("/");
+      let filename = components[components.length - 1];
+      const isExecutable = path.endsWith("*");
+      const isFolder = path.endsWith("/");
+
+      if (isFolder) {
+        filename = components[components.length - 2] + "/";
+      }
+
+      // Removes character at the end of the filepath
+      if (["@", "*", "%", "|"].includes(path.slice(-1))) {
+        filename = filename.slice(0, -1);
+      }
+
+      return {
+        name: filename,
+        icon: "fig:https://" + path,
+        description: isFolder ? "folder" : "file",
+        priority: isExecutable && 80,
+      };
+    });
+  },
+  trigger: "/",
+  filterTerm: "/",
+};
 
 export const completionSpec: Fig.Spec = {
   name: "dotslash",
   args: {
     // This was previously just "filepaths", however, we added folders so
     // users of ohmyzsh could cd into a folder by typing the folder name without `cd`
-    template: ["filepaths", "folders"],
+    generators: [dotslashGenerator],
   },
 };