[build] add plain text file lists for iOS/macOS

scripts/generate-cmake-files.js

@@ -3,9 +3,13 @@
 const child_process = require('child_process');
 const fs = require('fs');
 const ejs = require('ejs');
+const path = require('path');
+const xcode = require('xcode');
 
 require('./style-code');
 
+const fileListTxt = ejs.compile(fs.readFileSync('cmake/files.txt.ejs', 'utf8'), {strict: true});
+
 function generateFileList(name, regex, patterns) {
     const files = child_process.execSync(`git ls-files ${patterns.map((p) => '"' + p + '"').join(' ')}`).toString().trim().split('\n');
     var groups = {};
@@ -18,8 +22,69 @@ function generateFileList(name, regex, patterns) {
         groups[group].push(file);
     }
 
-    const fileListCmake = ejs.compile(fs.readFileSync('cmake/files.txt.ejs', 'utf8'), {strict: true});
-    writeIfModified(`cmake/${name}-files.txt`, fileListCmake({ groups: groups }));
+    writeIfModified(`cmake/${name}-files.txt`, fileListTxt({ groups: groups }));
+}
+
+function generateXcodeSourceList(project, target, name) {
+    const projectPath = path.dirname(project);
+    let objects = xcode.project(path.join(project, 'project.pbxproj')).parseSync().hash.project.objects;
+
+    // Build reverse lookup table for file => group
+    let objToGroup = {};
+    Object.keys(objects.PBXGroup)
+        .filter(name => !/_comment$/.test(name))
+        .forEach(name => objects.PBXGroup[name].children
+            .forEach(child => objToGroup[child.value] = name));
+
+    // Retrieve the target
+    const targetObj = Object.keys(objects.PBXNativeTarget)
+        .filter(name => !/_comment$/.test(name))
+        .map(name => objects.PBXNativeTarget[name])
+        .filter(project => project.name == target)[0];
+
+    // Retrieve the sources associated with the target.
+    const sourcesObjs = targetObj.buildPhases
+        .map(phase => objects.PBXSourcesBuildPhase[phase.value] || objects.PBXHeadersBuildPhase[phase.value])
+        .filter(phase => phase);
+
+    let groups = {};
+    sourcesObjs
+        .forEach(sourcesObj => sourcesObj.files
+        .map(file => objects.PBXBuildFile[file.value].fileRef)
+        .forEach(fileRef => {
+            // Look up the full path, and fully qualified group name for every source reference
+            let fileObj = objects.PBXFileReference[fileRef];
+
+            // Ascend the group tree to find the full path.
+            let fullPath = [ fileObj.path.replace(/^"(.+)"$/, '$1') ];
+            for (let ref = fileRef, obj = fileObj; obj.sourceTree != 'SOURCE_ROOT' && ref in objToGroup;) {
+                ref = objToGroup[ref];
+                obj = objects.PBXGroup[ref];
+                if (obj.path) {
+                    fullPath.unshift(obj.path.replace(/^"(.+)"$/, '$1'));
+                }
+            }
+
+            // Generate a group name from the Xcode source groups
+            let groupName = [];
+            for (let ref = fileRef, obj = fileObj; ref in objToGroup;) {
+                ref = objToGroup[ref];
+                obj = objects.PBXGroup[ref];
+                if (obj.name) {
+                    groupName.unshift(obj.name.replace(/^"(.+)"$/, '$1'));
+                }
+            }
+
+            groupName = groupName.join('/');
+            if (!groups[groupName]) {
+                groups[groupName] = [];
+            }
+            fullPath.unshift(projectPath);
+            groups[groupName].push(path.join.apply(path, fullPath));
+        })
+    );
+
+    writeIfModified(`${projectPath}/${name || target}-files.txt`, fileListTxt({ groups: groups }));
 }
 
 generateFileList('core', /^(?:src|include)\/(?:mbgl\/)?(.+)\/[^\/]+$/,
@@ -30,3 +95,7 @@ generateFileList('benchmark', /^benchmark\/(?:(?:src|include)\/)?(?:mbgl\/)?(?:(
 
 generateFileList('test', /^test\/(?:(?:src|include)\/)?(?:mbgl\/)?(?:(.+)\/)?[^\/]+$/,
     [ 'test/*.hpp', 'test/*.cpp', 'test/*.h', 'test/*.c' ]);
+
+generateXcodeSourceList('platform/macos/macos.xcodeproj', 'dynamic', 'core');
+
+generateXcodeSourceList('platform/ios/ios.xcodeproj', 'dynamic', 'core');