Add selection replacement

README.md

@@ -127,7 +127,8 @@ values of `env`. They should all be enclosed in curly brackets `{}`
   * `{FILE_ACTIVE_NAME}` - Full name and extension of active file. E.g., `build.js`
   * `{FILE_ACTIVE_NAME_BASE}` - Name of active file WITHOUT extension. E.g., `build`
   * `{PROJECT_PATH}` - Full path to the root of the project. This is normally the path Atom has as root. E.g `/home/noseglid/github/atom-build`
-  * `{REPO_BRANCH_SHORT}` - Short name of the current active branch (if project is backed by git). E.g `master` or `v0.9.1`.
+  * `{REPO_BRANCH_SHORT}` - Short name of the current active branch (if project is backed by git). E.g `master` or `v0.9.1`
+  * `{SELECTION}` - Selected text.
 
 ### Creating a build provider
 Creating a build provider require very little code in the easiest case, and can

lib/utils.js

@@ -74,6 +74,7 @@ const replace = (value = '', targetEnv) => {
     value = value.replace(/{FILE_ACTIVE_PATH}/g, activeFilePath);
     value = value.replace(/{FILE_ACTIVE_NAME}/g, path.basename(activeFile));
     value = value.replace(/{FILE_ACTIVE_NAME_BASE}/g, path.basename(activeFile, path.extname(activeFile)));
+    value = value.replace(/{SELECTION}/g, editor.getSelectedText());
   }
   value = value.replace(/{PROJECT_PATH}/g, projectPath);
   if (atom.project.getRepositories[0]) {

spec/build-spec.js

@@ -373,6 +373,8 @@ describe('Build', () => {
         ]);
       });
 
+      runs(() => atom.workspace.getActiveTextEditor().setSelectedBufferRange([[1, 3], [1, 6]]));
+
       runs(() => atom.commands.dispatch(workspaceElement, 'build:trigger'));
 
       waitsFor(() => {
@@ -389,6 +391,7 @@ describe('Build', () => {
         expect(output.indexOf('FROM_PROCESS_ENV=' + directory + '.atom-build.json')).not.toBe(-1);
         expect(output.indexOf('FILE_ACTIVE_NAME=.atom-build.json')).not.toBe(-1);
         expect(output.indexOf('FILE_ACTIVE_NAME_BASE=.atom-build')).not.toBe(-1);
+        expect(output.indexOf('SELECTION=cmd')).not.toBe(-1);
       });
     });
   });

spec/fixture/.atom-build.replace.json

@@ -6,6 +6,7 @@
     "REPO_BRANCH_SHORT={REPO_BRANCH_SHORT}",
     "FILE_ACTIVE_NAME={FILE_ACTIVE_NAME}",
     "FILE_ACTIVE_NAME_BASE={FILE_ACTIVE_NAME_BASE}",
+    "SELECTION={SELECTION}",
     "FROM_ENV=$FROM_ENV",
     "FROM_PROCESS_ENV=$FROM_PROCESS_ENV"
   ],