target script

scripts/diff.js

@@ -1,38 +1,36 @@
 const { execSync } = require('child_process');
-const { parse } = require('path');
-const output = execSync(`git diff origin/master`).toString().split('\n')
-
-let count = 0;
-let start = 0;
-let current = 0;
-let sources = [];
-for (let i = 0; i < output.length; i++) {
-  if (output[i].startsWith('diff --git')) {
-    // skip 'diff --git a/' prefix
-    const file = output[i].split(' ')[2].substring(2);
-    sources.push({'file': file, 'lines': []});
-    // go to header line, e.g. '@@ -1,2 +1,3 @@'
-    do {
-      ++i;
+module.exports = () => {
+  const output = execSync(`git diff origin/master`).toString().split('\n')
+  let count = 0;
+  let start = 0;
+  let current = 0;
+  let sources = [];
+  for (let i = 0; i < output.length; i++) {
+    if (output[i].startsWith('diff --git')) {
+      // skip 'diff --git a/' prefix
+      const file = output[i].split(' ')[2].substring(2);
+      sources.push({'file': file, 'lines': []});
+      // go to header line, e.g. '@@ -1,2 +1,3 @@'
+      do {
+        ++i;
+      }
+      while (!output[i].startsWith('@@'));
+      output[i].split(' ').forEach((c) => {
+          if (c.startsWith('+')) {
+              [start, count] = c.split(',');
+              start = parseInt(start);
+              count = parseInt(count);
+              current = 0;
+          }
+      });
     }
-    while (!output[i].startsWith('@@'));
-    output[i].split(' ').forEach((c) => {
-        if (c.startsWith('+')) {
-            [start, count] = c.split(',');
-            start = parseInt(start);
-            count = parseInt(count);
-            current = 0;
-        }
-    });
-  }
-  else if (current < count && !output[i].startsWith('-')) {
-    if (output[i].startsWith('+')) {
-      sources[sources.length - 1].lines.push(start + current);
+    else if (current < count && !output[i].startsWith('-')) {
+      if (output[i].startsWith('+')) {
+        sources[sources.length - 1].lines.push(start + current);
+      }
+      ++current;
     }
-    ++current;
   }
-}
 
-module.exports = () => {
   return sources;
 };

scripts/targets.js

@@ -0,0 +1,45 @@
+const fs = require('fs');
+const { execSync } = require('child_process');
+
+module.exports = (sources) => {
+  let outputs = [];
+  let commands = JSON.parse(fs.readFileSync('build/compile_commands.json', 'utf8'));
+  for (let {'file': src, ..._} of sources) {
+    if (src.endsWith('.cpp') || src.endsWith('.h') || src.endsWith('.c')
+      || src.endsWith('.hpp')) {
+      const idx = commands.findIndex(entry => entry.file.endsWith(src));
+      if (idx >= 0) {
+        let entry = commands[idx];
+        if (entry.output !== 'undefined') {
+          entry.output = entry.command.split(' ').find(token => token.endsWith('.o'));
+        }
+        outputs.push(entry.output);
+        commands.splice(idx, 1);
+      }
+    }
+  }
+
+  targets = new Set();
+  while (outputs.length > 0) {
+    level_targets = new Set();
+    for (const output of outputs) {
+      let lines = execSync(`ninja -C build -t query ${output}`).toString().split('\n');
+
+      let insert = false;
+      for (const line of lines) {
+      if (line.endsWith('outputs:')) {
+        insert = true;
+        continue;
+      }
+      const value = line.trim();
+      if (insert && value.length > 0) {
+        level_targets.add(value);
+      }
+    }
+  }
+
+  outputs = [...level_targets];
+  targets = new Set([...targets, ...level_targets]);
+  }
+  return [...targets].join(' ');
+}