Thu, 20 Jun 2013 08:45:43 +0100
8016613: javac should avoid source 8 only analysis when compiling for source 7
Reviewed-by: jjg
Contributed-by: maurizio.cimadamore@oracle.com
1 /*
2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
26 package com.sun.tools.sjavac;
28 import java.io.*;
29 import java.util.Collections;
30 import java.util.Date;
31 import java.util.Set;
32 import java.util.HashSet;
33 import java.util.List;
34 import java.util.Map;
35 import java.util.HashMap;
36 import java.text.SimpleDateFormat;
37 import java.net.URI;
38 import java.util.*;
40 /**
41 * The javac state class maintains the previous (prev) and the current (now)
42 * build states and everything else that goes into the javac_state file.
43 *
44 * <p><b>This is NOT part of any supported API.
45 * If you write code that depends on this, you do so at your own
46 * risk. This code and its internal interfaces are subject to change
47 * or deletion without notice.</b></p>
48 */
49 public class JavacState
50 {
51 // The arguments to the compile. If not identical, then it cannot
52 // be an incremental build!
53 String theArgs;
54 // The number of cores limits how many threads are used for heavy concurrent work.
55 int numCores;
57 // The bin_dir/javac_state
58 private String javacStateFilename;
59 private File javacState;
61 // The previous build state is loaded from javac_state
62 private BuildState prev;
63 // The current build state is constructed during the build,
64 // then saved as the new javac_state.
65 private BuildState now;
67 // Something has changed in the javac_state. It needs to be saved!
68 private boolean needsSaving;
69 // If this is a new javac_state file, then do not print unnecessary messages.
70 private boolean newJavacState;
72 // These are packages where something has changed and the package
73 // needs to be recompiled. Actions that trigger recompilation:
74 // * source belonging to the package has changed
75 // * artifact belonging to the package is lost, or its timestamp has been changed.
76 // * an unknown artifact has appeared, we simply delete it, but we also trigger a recompilation.
77 // * a package that is tainted, taints all packages that depend on it.
78 private Set<String> taintedPackages;
79 // After a compile, the pubapis are compared with the pubapis stored in the javac state file.
80 // Any packages where the pubapi differ are added to this set.
81 // Later we use this set and the dependency information to taint dependent packages.
82 private Set<String> packagesWithChangedPublicApis;
83 // When a module-info.java file is changed, taint the module,
84 // then taint all modules that depend on that that module.
85 // A module dependency can occur directly through a require, or
86 // indirectly through a module that does a public export for the first tainted module.
87 // When all modules are tainted, then taint all packages belonging to these modules.
88 // Then rebuild. It is perhaps possible (and valuable?) to do a more finegrained examination of the
89 // change in module-info.java, but that will have to wait.
90 private Set<String> taintedModules;
91 // The set of all packages that has been recompiled.
92 // Copy over the javac_state for the packages that did not need recompilation,
93 // verbatim from the previous (prev) to the new (now) build state.
94 private Set<String> recompiledPackages;
96 // The output directories filled with tasty artifacts.
97 private File binDir, gensrcDir, headerDir;
99 // The current status of the file system.
100 private Set<File> binArtifacts;
101 private Set<File> gensrcArtifacts;
102 private Set<File> headerArtifacts;
104 // The status of the sources.
105 Set<Source> removedSources = null;
106 Set<Source> addedSources = null;
107 Set<Source> modifiedSources = null;
109 // Visible sources for linking. These are the only
110 // ones that -sourcepath is allowed to see.
111 Set<URI> visibleSrcs;
113 // Visible classes for linking. These are the only
114 // ones that -classpath is allowed to see.
115 // It maps from a classpath root to the set of visible classes for that root.
116 // If the set is empty, then all classes are visible for that root.
117 // It can also map from a jar file to the set of visible classes for that jar file.
118 Map<URI,Set<String>> visibleClasses;
120 // Setup two transforms that always exist.
121 private CopyFile copyFiles = new CopyFile();
122 private CompileJavaPackages compileJavaPackages = new CompileJavaPackages();
124 // Where to send stdout and stderr.
125 private PrintStream out, err;
127 JavacState(String[] args, File bd, File gd, File hd, boolean permitUnidentifiedArtifacts, boolean removeJavacState,
128 PrintStream o, PrintStream e) {
129 out = o;
130 err = e;
131 numCores = Main.findNumberOption(args, "-j");
132 theArgs = "";
133 for (String a : removeArgsNotAffectingState(args)) {
134 theArgs = theArgs+a+" ";
135 }
136 binDir = bd;
137 gensrcDir = gd;
138 headerDir = hd;
139 javacStateFilename = binDir.getPath()+File.separator+"javac_state";
140 javacState = new File(javacStateFilename);
141 if (removeJavacState && javacState.exists()) {
142 javacState.delete();
143 }
144 newJavacState = false;
145 if (!javacState.exists()) {
146 newJavacState = true;
147 // If there is no javac_state then delete the contents of all the artifact dirs!
148 // We do not want to risk building a broken incremental build.
149 // BUT since the makefiles still copy things straight into the bin_dir et al,
150 // we avoid deleting files here, if the option --permit-unidentified-classes was supplied.
151 if (!permitUnidentifiedArtifacts) {
152 deleteContents(binDir);
153 deleteContents(gensrcDir);
154 deleteContents(headerDir);
155 }
156 needsSaving = true;
157 }
158 prev = new BuildState();
159 now = new BuildState();
160 taintedPackages = new HashSet<String>();
161 recompiledPackages = new HashSet<String>();
162 packagesWithChangedPublicApis = new HashSet<String>();
163 }
165 public BuildState prev() { return prev; }
166 public BuildState now() { return now; }
168 /**
169 * Remove args not affecting the state.
170 */
171 static String[] removeArgsNotAffectingState(String[] args) {
172 String[] out = new String[args.length];
173 int j = 0;
174 for (int i = 0; i<args.length; ++i) {
175 if (args[i].equals("-j")) {
176 // Just skip it and skip following value
177 i++;
178 } else if (args[i].startsWith("--server:")) {
179 // Just skip it.
180 } else if (args[i].startsWith("--log=")) {
181 // Just skip it.
182 } else if (args[i].equals("--compare-found-sources")) {
183 // Just skip it and skip verify file name
184 i++;
185 } else {
186 // Copy argument.
187 out[j] = args[i];
188 j++;
189 }
190 }
191 String[] ret = new String[j];
192 System.arraycopy(out, 0, ret, 0, j);
193 return ret;
194 }
196 /**
197 * Specify which sources are visible to the compiler through -sourcepath.
198 */
199 public void setVisibleSources(Map<String,Source> vs) {
200 visibleSrcs = new HashSet<URI>();
201 for (String s : vs.keySet()) {
202 Source src = vs.get(s);
203 visibleSrcs.add(src.file().toURI());
204 }
205 }
207 /**
208 * Specify which classes are visible to the compiler through -classpath.
209 */
210 public void setVisibleClasses(Map<String,Source> vs) {
211 visibleSrcs = new HashSet<URI>();
212 for (String s : vs.keySet()) {
213 Source src = vs.get(s);
214 visibleSrcs.add(src.file().toURI());
215 }
216 }
217 /**
218 * Returns true if this is an incremental build.
219 */
220 public boolean isIncremental() {
221 return !prev.sources().isEmpty();
222 }
224 /**
225 * Find all artifacts that exists on disk.
226 */
227 public void findAllArtifacts() {
228 binArtifacts = findAllFiles(binDir);
229 gensrcArtifacts = findAllFiles(gensrcDir);
230 headerArtifacts = findAllFiles(headerDir);
231 }
233 /**
234 * Lookup the artifacts generated for this package in the previous build.
235 */
236 private Map<String,File> fetchPrevArtifacts(String pkg) {
237 Package p = prev.packages().get(pkg);
238 if (p != null) {
239 return p.artifacts();
240 }
241 return new HashMap<String,File>();
242 }
244 /**
245 * Delete all prev artifacts in the currently tainted packages.
246 */
247 public void deleteClassArtifactsInTaintedPackages() {
248 for (String pkg : taintedPackages) {
249 Map<String,File> arts = fetchPrevArtifacts(pkg);
250 for (File f : arts.values()) {
251 if (f.exists() && f.getName().endsWith(".class")) {
252 f.delete();
253 }
254 }
255 }
256 }
258 /**
259 * Mark the javac_state file to be in need of saving and as a side effect,
260 * it gets a new timestamp.
261 */
262 private void needsSaving() {
263 needsSaving = true;
264 }
266 /**
267 * Save the javac_state file.
268 */
269 public void save() throws IOException {
270 if (!needsSaving) return;
271 try (FileWriter out = new FileWriter(javacStateFilename)) {
272 StringBuilder b = new StringBuilder();
273 long millisNow = System.currentTimeMillis();
274 Date d = new Date(millisNow);
275 SimpleDateFormat df =
276 new SimpleDateFormat("yyyy-MM-dd HH:mm:ss SSS");
277 b.append("# javac_state ver 0.3 generated "+millisNow+" "+df.format(d)+"\n");
278 b.append("# This format might change at any time. Please do not depend on it.\n");
279 b.append("# M module\n");
280 b.append("# P package\n");
281 b.append("# S C source_tobe_compiled timestamp\n");
282 b.append("# S L link_only_source timestamp\n");
283 b.append("# G C generated_source timestamp\n");
284 b.append("# A artifact timestamp\n");
285 b.append("# D dependency\n");
286 b.append("# I pubapi\n");
287 b.append("# R arguments\n");
288 b.append("R ").append(theArgs).append("\n");
290 // Copy over the javac_state for the packages that did not need recompilation.
291 now.copyPackagesExcept(prev, recompiledPackages, new HashSet<String>());
292 // Save the packages, ie package names, dependencies, pubapis and artifacts!
293 // I.e. the lot.
294 Module.saveModules(now.modules(), b);
296 String s = b.toString();
297 out.write(s, 0, s.length());
298 }
299 }
301 /**
302 * Load a javac_state file.
303 */
304 public static JavacState load(String[] args, File binDir, File gensrcDir, File headerDir,
305 boolean permitUnidentifiedArtifacts, PrintStream out, PrintStream err) {
306 JavacState db = new JavacState(args, binDir, gensrcDir, headerDir, permitUnidentifiedArtifacts, false, out, err);
307 Module lastModule = null;
308 Package lastPackage = null;
309 Source lastSource = null;
310 boolean noFileFound = false;
311 boolean foundCorrectVerNr = false;
312 boolean newCommandLine = false;
313 boolean syntaxError = false;
315 try (BufferedReader in = new BufferedReader(new FileReader(db.javacStateFilename))) {
316 for (;;) {
317 String l = in.readLine();
318 if (l==null) break;
319 if (l.length()>=3 && l.charAt(1) == ' ') {
320 char c = l.charAt(0);
321 if (c == 'M') {
322 lastModule = db.prev.loadModule(l);
323 } else
324 if (c == 'P') {
325 if (lastModule == null) { syntaxError = true; break; }
326 lastPackage = db.prev.loadPackage(lastModule, l);
327 } else
328 if (c == 'D') {
329 if (lastModule == null || lastPackage == null) { syntaxError = true; break; }
330 lastPackage.loadDependency(l);
331 } else
332 if (c == 'I') {
333 if (lastModule == null || lastPackage == null) { syntaxError = true; break; }
334 lastPackage.loadPubapi(l);
335 } else
336 if (c == 'A') {
337 if (lastModule == null || lastPackage == null) { syntaxError = true; break; }
338 lastPackage.loadArtifact(l);
339 } else
340 if (c == 'S') {
341 if (lastModule == null || lastPackage == null) { syntaxError = true; break; }
342 lastSource = db.prev.loadSource(lastPackage, l, false);
343 } else
344 if (c == 'G') {
345 if (lastModule == null || lastPackage == null) { syntaxError = true; break; }
346 lastSource = db.prev.loadSource(lastPackage, l, true);
347 } else
348 if (c == 'R') {
349 String ncmdl = "R "+db.theArgs;
350 if (!l.equals(ncmdl)) {
351 newCommandLine = true;
352 }
353 } else
354 if (c == '#') {
355 if (l.startsWith("# javac_state ver ")) {
356 int sp = l.indexOf(" ", 18);
357 if (sp != -1) {
358 String ver = l.substring(18,sp);
359 if (!ver.equals("0.3")) {
360 break;
361 }
362 foundCorrectVerNr = true;
363 }
364 }
365 }
366 }
367 }
368 } catch (FileNotFoundException e) {
369 // Silently create a new javac_state file.
370 noFileFound = true;
371 } catch (IOException e) {
372 Log.info("Dropping old javac_state because of errors when reading it.");
373 db = new JavacState(args, binDir, gensrcDir, headerDir, permitUnidentifiedArtifacts, true, out, err);
374 foundCorrectVerNr = true;
375 newCommandLine = false;
376 syntaxError = false;
377 }
378 if (foundCorrectVerNr == false && !noFileFound) {
379 Log.info("Dropping old javac_state since it is of an old version.");
380 db = new JavacState(args, binDir, gensrcDir, headerDir, permitUnidentifiedArtifacts, true, out, err);
381 } else
382 if (newCommandLine == true && !noFileFound) {
383 Log.info("Dropping old javac_state since a new command line is used!");
384 db = new JavacState(args, binDir, gensrcDir, headerDir, permitUnidentifiedArtifacts, true, out, err);
385 } else
386 if (syntaxError == true) {
387 Log.info("Dropping old javac_state since it contains syntax errors.");
388 db = new JavacState(args, binDir, gensrcDir, headerDir, permitUnidentifiedArtifacts, true, out, err);
389 }
390 db.prev.calculateDependents();
391 return db;
392 }
394 /**
395 * Mark a java package as tainted, ie it needs recompilation.
396 */
397 public void taintPackage(String name, String because) {
398 if (!taintedPackages.contains(name)) {
399 if (because != null) Log.debug("Tainting "+Util.justPackageName(name)+" because "+because);
400 // It has not been tainted before.
401 taintedPackages.add(name);
402 needsSaving();
403 Package nowp = now.packages().get(name);
404 if (nowp != null) {
405 for (String d : nowp.dependents()) {
406 taintPackage(d, because);
407 }
408 }
409 }
410 }
412 /**
413 * This packages need recompilation.
414 */
415 public Set<String> taintedPackages() {
416 return taintedPackages;
417 }
419 /**
420 * Clean out the tainted package set, used after the first round of compiles,
421 * prior to propagating dependencies.
422 */
423 public void clearTaintedPackages() {
424 taintedPackages = new HashSet<String>();
425 }
427 /**
428 * Go through all sources and check which have been removed, added or modified
429 * and taint the corresponding packages.
430 */
431 public void checkSourceStatus(boolean check_gensrc) {
432 removedSources = calculateRemovedSources();
433 for (Source s : removedSources) {
434 if (!s.isGenerated() || check_gensrc) {
435 taintPackage(s.pkg().name(), "source "+s.name()+" was removed");
436 }
437 }
439 addedSources = calculateAddedSources();
440 for (Source s : addedSources) {
441 String msg = null;
442 if (isIncremental()) {
443 // When building from scratch, there is no point
444 // printing "was added" for every file since all files are added.
445 // However for an incremental build it makes sense.
446 msg = "source "+s.name()+" was added";
447 }
448 if (!s.isGenerated() || check_gensrc) {
449 taintPackage(s.pkg().name(), msg);
450 }
451 }
453 modifiedSources = calculateModifiedSources();
454 for (Source s : modifiedSources) {
455 if (!s.isGenerated() || check_gensrc) {
456 taintPackage(s.pkg().name(), "source "+s.name()+" was modified");
457 }
458 }
459 }
461 /**
462 * Acquire the compile_java_packages suffix rule for .java files.
463 */
464 public Map<String,Transformer> getJavaSuffixRule() {
465 Map<String,Transformer> sr = new HashMap<String,Transformer>();
466 sr.put(".java", compileJavaPackages);
467 return sr;
468 }
470 /**
471 * Acquire the copying transform.
472 */
473 public Transformer getCopier() {
474 return copyFiles;
475 }
477 /**
478 * If artifacts have gone missing, force a recompile of the packages
479 * they belong to.
480 */
481 public void taintPackagesThatMissArtifacts() {
482 for (Package pkg : prev.packages().values()) {
483 for (File f : pkg.artifacts().values()) {
484 if (!f.exists()) {
485 // Hmm, the artifact on disk does not exist! Someone has removed it....
486 // Lets rebuild the package.
487 taintPackage(pkg.name(), ""+f+" is missing.");
488 }
489 }
490 }
491 }
493 /**
494 * Propagate recompilation through the dependency chains.
495 * Avoid re-tainting packages that have already been compiled.
496 */
497 public void taintPackagesDependingOnChangedPackages(Set<String> pkgs, Set<String> recentlyCompiled) {
498 for (Package pkg : prev.packages().values()) {
499 for (String dep : pkg.dependencies()) {
500 if (pkgs.contains(dep) && !recentlyCompiled.contains(pkg.name())) {
501 taintPackage(pkg.name(), " its depending on "+dep);
502 }
503 }
504 }
505 }
507 /**
508 * Scan all output dirs for artifacts and remove those files (artifacts?)
509 * that are not recognized as such, in the javac_state file.
510 */
511 public void removeUnidentifiedArtifacts() {
512 Set<File> allKnownArtifacts = new HashSet<File>();
513 for (Package pkg : prev.packages().values()) {
514 for (File f : pkg.artifacts().values()) {
515 allKnownArtifacts.add(f);
516 }
517 }
518 // Do not forget about javac_state....
519 allKnownArtifacts.add(javacState);
521 for (File f : binArtifacts) {
522 if (!allKnownArtifacts.contains(f)) {
523 Log.debug("Removing "+f.getPath()+" since it is unknown to the javac_state.");
524 f.delete();
525 }
526 }
527 for (File f : headerArtifacts) {
528 if (!allKnownArtifacts.contains(f)) {
529 Log.debug("Removing "+f.getPath()+" since it is unknown to the javac_state.");
530 f.delete();
531 }
532 }
533 for (File f : gensrcArtifacts) {
534 if (!allKnownArtifacts.contains(f)) {
535 Log.debug("Removing "+f.getPath()+" since it is unknown to the javac_state.");
536 f.delete();
537 }
538 }
539 }
541 /**
542 * Remove artifacts that are no longer produced when compiling!
543 */
544 public void removeSuperfluousArtifacts(Set<String> recentlyCompiled) {
545 // Nothing to do, if nothing was recompiled.
546 if (recentlyCompiled.size() == 0) return;
548 for (String pkg : now.packages().keySet()) {
549 // If this package has not been recompiled, skip the check.
550 if (!recentlyCompiled.contains(pkg)) continue;
551 Collection<File> arts = now.artifacts().values();
552 for (File f : fetchPrevArtifacts(pkg).values()) {
553 if (!arts.contains(f)) {
554 Log.debug("Removing "+f.getPath()+" since it is now superfluous!");
555 if (f.exists()) f.delete();
556 }
557 }
558 }
559 }
561 /**
562 * Return those files belonging to prev, but not now.
563 */
564 private Set<Source> calculateRemovedSources() {
565 Set<Source> removed = new HashSet<Source>();
566 for (String src : prev.sources().keySet()) {
567 if (now.sources().get(src) == null) {
568 removed.add(prev.sources().get(src));
569 }
570 }
571 return removed;
572 }
574 /**
575 * Return those files belonging to now, but not prev.
576 */
577 private Set<Source> calculateAddedSources() {
578 Set<Source> added = new HashSet<Source>();
579 for (String src : now.sources().keySet()) {
580 if (prev.sources().get(src) == null) {
581 added.add(now.sources().get(src));
582 }
583 }
584 return added;
585 }
587 /**
588 * Return those files where the timestamp is newer.
589 * If a source file timestamp suddenly is older than what is known
590 * about it in javac_state, then consider it modified, but print
591 * a warning!
592 */
593 private Set<Source> calculateModifiedSources() {
594 Set<Source> modified = new HashSet<Source>();
595 for (String src : now.sources().keySet()) {
596 Source n = now.sources().get(src);
597 Source t = prev.sources().get(src);
598 if (prev.sources().get(src) != null) {
599 if (t != null) {
600 if (n.lastModified() > t.lastModified()) {
601 modified.add(n);
602 } else if (n.lastModified() < t.lastModified()) {
603 modified.add(n);
604 Log.warn("The source file "+n.name()+" timestamp has moved backwards in time.");
605 }
606 }
607 }
608 }
609 return modified;
610 }
612 /**
613 * Recursively delete a directory and all its contents.
614 */
615 private static void deleteContents(File dir) {
616 if (dir != null && dir.exists()) {
617 for (File f : dir.listFiles()) {
618 if (f.isDirectory()) {
619 deleteContents(f);
620 }
621 f.delete();
622 }
623 }
624 }
626 /**
627 * Run the copy translator only.
628 */
629 public void performCopying(File binDir, Map<String,Transformer> suffixRules) {
630 Map<String,Transformer> sr = new HashMap<String,Transformer>();
631 for (Map.Entry<String,Transformer> e : suffixRules.entrySet()) {
632 if (e.getValue() == copyFiles) {
633 sr.put(e.getKey(), e.getValue());
634 }
635 }
636 perform(binDir, sr);
637 }
639 /**
640 * Run all the translators that translate into java source code.
641 * I.e. all translators that are not copy nor compile_java_source.
642 */
643 public void performTranslation(File gensrcDir, Map<String,Transformer> suffixRules) {
644 Map<String,Transformer> sr = new HashMap<String,Transformer>();
645 for (Map.Entry<String,Transformer> e : suffixRules.entrySet()) {
646 if (e.getValue() != copyFiles &&
647 e.getValue() != compileJavaPackages) {
648 sr.put(e.getKey(), e.getValue());
649 }
650 }
651 perform(gensrcDir, sr);
652 }
654 /**
655 * Compile all the java sources. Return true, if it needs to be called again!
656 */
657 public boolean performJavaCompilations(File binDir,
658 String serverSettings,
659 String[] args,
660 Set<String> recentlyCompiled,
661 boolean[] rcValue) {
662 Map<String,Transformer> suffixRules = new HashMap<String,Transformer>();
663 suffixRules.put(".java", compileJavaPackages);
664 compileJavaPackages.setExtra(serverSettings);
665 compileJavaPackages.setExtra(args);
667 rcValue[0] = perform(binDir, suffixRules);
668 recentlyCompiled.addAll(taintedPackages());
669 clearTaintedPackages();
670 boolean again = !packagesWithChangedPublicApis.isEmpty();
671 taintPackagesDependingOnChangedPackages(packagesWithChangedPublicApis, recentlyCompiled);
672 packagesWithChangedPublicApis = new HashSet<String>();
673 return again && rcValue[0];
674 }
676 /**
677 * Store the source into the set of sources belonging to the given transform.
678 */
679 private void addFileToTransform(Map<Transformer,Map<String,Set<URI>>> gs, Transformer t, Source s) {
680 Map<String,Set<URI>> fs = gs.get(t);
681 if (fs == null) {
682 fs = new HashMap<String,Set<URI>>();
683 gs.put(t, fs);
684 }
685 Set<URI> ss = fs.get(s.pkg().name());
686 if (ss == null) {
687 ss = new HashSet<URI>();
688 fs.put(s.pkg().name(), ss);
689 }
690 ss.add(s.file().toURI());
691 }
693 /**
694 * For all packages, find all sources belonging to the package, group the sources
695 * based on their transformers and apply the transformers on each source code group.
696 */
697 private boolean perform(File outputDir, Map<String,Transformer> suffixRules)
698 {
699 boolean rc = true;
700 // Group sources based on transforms. A source file can only belong to a single transform.
701 Map<Transformer,Map<String,Set<URI>>> groupedSources = new HashMap<Transformer,Map<String,Set<URI>>>();
702 for (Source src : now.sources().values()) {
703 Transformer t = suffixRules.get(src.suffix());
704 if (t != null) {
705 if (taintedPackages.contains(src.pkg().name()) && !src.isLinkedOnly()) {
706 addFileToTransform(groupedSources, t, src);
707 }
708 }
709 }
710 // Go through the transforms and transform them.
711 for (Map.Entry<Transformer,Map<String,Set<URI>>> e : groupedSources.entrySet()) {
712 Transformer t = e.getKey();
713 Map<String,Set<URI>> srcs = e.getValue();
714 // These maps need to be synchronized since multiple threads will be writing results into them.
715 Map<String,Set<URI>> packageArtifacts = Collections.synchronizedMap(new HashMap<String,Set<URI>>());
716 Map<String,Set<String>> packageDependencies = Collections.synchronizedMap(new HashMap<String,Set<String>>());
717 Map<String,String> packagePublicApis = Collections.synchronizedMap(new HashMap<String,String>());
719 boolean r = t.transform(srcs,
720 visibleSrcs,
721 visibleClasses,
722 prev.dependents(),
723 outputDir.toURI(),
724 packageArtifacts,
725 packageDependencies,
726 packagePublicApis,
727 0,
728 isIncremental(),
729 numCores,
730 out,
731 err);
732 if (!r) rc = false;
734 for (String p : srcs.keySet()) {
735 recompiledPackages.add(p);
736 }
737 // The transform is done! Extract all the artifacts and store the info into the Package objects.
738 for (Map.Entry<String,Set<URI>> a : packageArtifacts.entrySet()) {
739 Module mnow = now.findModuleFromPackageName(a.getKey());
740 mnow.addArtifacts(a.getKey(), a.getValue());
741 }
742 // Extract all the dependencies and store the info into the Package objects.
743 for (Map.Entry<String,Set<String>> a : packageDependencies.entrySet()) {
744 Set<String> deps = a.getValue();
745 Module mnow = now.findModuleFromPackageName(a.getKey());
746 mnow.setDependencies(a.getKey(), deps);
747 }
748 // Extract all the pubapis and store the info into the Package objects.
749 for (Map.Entry<String,String> a : packagePublicApis.entrySet()) {
750 Module mprev = prev.findModuleFromPackageName(a.getKey());
751 List<String> pubapi = Package.pubapiToList(a.getValue());
752 Module mnow = now.findModuleFromPackageName(a.getKey());
753 mnow.setPubapi(a.getKey(), pubapi);
754 if (mprev.hasPubapiChanged(a.getKey(), pubapi)) {
755 // Aha! The pubapi of this package has changed!
756 // It can also be a new compile from scratch.
757 if (mprev.lookupPackage(a.getKey()).existsInJavacState()) {
758 // This is an incremental compile! The pubapi
759 // did change. Trigger recompilation of dependents.
760 packagesWithChangedPublicApis.add(a.getKey());
761 Log.info("The pubapi of "+Util.justPackageName(a.getKey())+" has changed!");
762 }
763 }
764 }
765 }
766 return rc;
767 }
769 /**
770 * Utility method to recursively find all files below a directory.
771 */
772 private static Set<File> findAllFiles(File dir) {
773 Set<File> foundFiles = new HashSet<File>();
774 if (dir == null) {
775 return foundFiles;
776 }
777 recurse(dir, foundFiles);
778 return foundFiles;
779 }
781 private static void recurse(File dir, Set<File> foundFiles) {
782 for (File f : dir.listFiles()) {
783 if (f.isFile()) {
784 foundFiles.add(f);
785 } else if (f.isDirectory()) {
786 recurse(f, foundFiles);
787 }
788 }
789 }
791 /**
792 * Compare the calculate source list, with an explicit list, usually supplied from the makefile.
793 * Used to detect bugs where the makefile and sjavac have different opinions on which files
794 * should be compiled.
795 */
796 public void compareWithMakefileList(File makefileSourceList)
797 throws ProblemException
798 {
799 // If we are building on win32 using for example cygwin the paths in the makefile source list
800 // might be /cygdrive/c/.... which does not match c:\....
801 // We need to adjust our calculated sources to be identical, if necessary.
802 boolean mightNeedRewriting = File.pathSeparatorChar == ';';
804 if (makefileSourceList == null) return;
806 Set<String> calculatedSources = new HashSet<String>();
807 Set<String> listedSources = new HashSet<String>();
809 // Create a set of filenames with full paths.
810 for (Source s : now.sources().values()) {
811 calculatedSources.add(s.file().getPath());
812 }
813 // Read in the file and create another set of filenames with full paths.
814 try {
815 BufferedReader in = new BufferedReader(new FileReader(makefileSourceList));
816 for (;;) {
817 String l = in.readLine();
818 if (l==null) break;
819 l = l.trim();
820 if (mightNeedRewriting) {
821 if (l.indexOf(":") == 1 && l.indexOf("\\") == 2) {
822 // Everything a-ok, the format is already C:\foo\bar
823 } else if (l.indexOf(":") == 1 && l.indexOf("/") == 2) {
824 // The format is C:/foo/bar, rewrite into the above format.
825 l = l.replaceAll("/","\\\\");
826 } else if (l.charAt(0) == '/' && l.indexOf("/",1) != -1) {
827 // The format might be: /cygdrive/c/foo/bar, rewrite into the above format.
828 // Do not hardcode the name cygdrive here.
829 int slash = l.indexOf("/",1);
830 l = l.replaceAll("/","\\\\");
831 l = ""+l.charAt(slash+1)+":"+l.substring(slash+2);
832 }
833 if (Character.isLowerCase(l.charAt(0))) {
834 l = Character.toUpperCase(l.charAt(0))+l.substring(1);
835 }
836 }
837 listedSources.add(l);
838 }
839 } catch (FileNotFoundException e) {
840 throw new ProblemException("Could not open "+makefileSourceList.getPath()+" since it does not exist!");
841 } catch (IOException e) {
842 throw new ProblemException("Could not read "+makefileSourceList.getPath());
843 }
845 for (String s : listedSources) {
846 if (!calculatedSources.contains(s)) {
847 throw new ProblemException("The makefile listed source "+s+" was not calculated by the smart javac wrapper!");
848 }
849 }
851 for (String s : calculatedSources) {
852 if (!listedSources.contains(s)) {
853 throw new ProblemException("The smart javac wrapper calculated source "+s+" was not listed by the makefiles!");
854 }
855 }
856 }
857 }