467 lines
15 KiB
C++
467 lines
15 KiB
C++
//
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// Copyright 2006 The Android Open Source Project
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//
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// Package assets into Zip files.
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//
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#include "Main.h"
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#include "AaptAssets.h"
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#include "ResourceTable.h"
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#include <utils/Log.h>
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#include <utils/threads.h>
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#include <utils/List.h>
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#include <utils/Errors.h>
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#include <sys/types.h>
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#include <dirent.h>
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#include <ctype.h>
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#include <errno.h>
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using namespace android;
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static const char* kExcludeExtension = ".EXCLUDE";
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/* these formats are already compressed, or don't compress well */
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static const char* kNoCompressExt[] = {
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".jpg", ".jpeg", ".png", ".gif",
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".wav", ".mp2", ".mp3", ".ogg", ".aac",
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".mpg", ".mpeg", ".mid", ".midi", ".smf", ".jet",
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".rtttl", ".imy", ".xmf", ".mxmf", ".mp4", ".m4a",
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".m4v", ".3gp", ".3gpp", ".3g2", ".3gpp2",
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".amr", ".awb", ".wma", ".wmv"
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};
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/* fwd decls, so I can write this downward */
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ssize_t processAssets(Bundle* bundle, ZipFile* zip, const sp<AaptAssets>& assets);
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ssize_t processAssets(Bundle* bundle, ZipFile* zip,
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const sp<AaptDir>& dir, const AaptGroupEntry& ge);
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bool processFile(Bundle* bundle, ZipFile* zip,
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const sp<AaptGroup>& group, const sp<AaptFile>& file);
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bool okayToCompress(Bundle* bundle, const String8& pathName);
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ssize_t processJarFiles(Bundle* bundle, ZipFile* zip);
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/*
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* The directory hierarchy looks like this:
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* "outputDir" and "assetRoot" are existing directories.
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*
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* On success, "bundle->numPackages" will be the number of Zip packages
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* we created.
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*/
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status_t writeAPK(Bundle* bundle, const sp<AaptAssets>& assets,
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const String8& outputFile)
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{
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status_t result = NO_ERROR;
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ZipFile* zip = NULL;
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int count;
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//bundle->setPackageCount(0);
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/*
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* Prep the Zip archive.
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*
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* If the file already exists, fail unless "update" or "force" is set.
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* If "update" is set, update the contents of the existing archive.
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* Else, if "force" is set, remove the existing archive.
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*/
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FileType fileType = getFileType(outputFile.string());
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if (fileType == kFileTypeNonexistent) {
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// okay, create it below
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} else if (fileType == kFileTypeRegular) {
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if (bundle->getUpdate()) {
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// okay, open it below
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} else if (bundle->getForce()) {
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if (unlink(outputFile.string()) != 0) {
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fprintf(stderr, "ERROR: unable to remove '%s': %s\n", outputFile.string(),
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strerror(errno));
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goto bail;
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}
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} else {
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fprintf(stderr, "ERROR: '%s' exists (use '-f' to force overwrite)\n",
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outputFile.string());
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goto bail;
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}
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} else {
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fprintf(stderr, "ERROR: '%s' exists and is not a regular file\n", outputFile.string());
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goto bail;
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}
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if (bundle->getVerbose()) {
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printf("%s '%s'\n", (fileType == kFileTypeNonexistent) ? "Creating" : "Opening",
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outputFile.string());
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}
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status_t status;
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zip = new ZipFile;
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status = zip->open(outputFile.string(), ZipFile::kOpenReadWrite | ZipFile::kOpenCreate);
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if (status != NO_ERROR) {
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fprintf(stderr, "ERROR: unable to open '%s' as Zip file for writing\n",
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outputFile.string());
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goto bail;
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}
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if (bundle->getVerbose()) {
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printf("Writing all files...\n");
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}
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count = processAssets(bundle, zip, assets);
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if (count < 0) {
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fprintf(stderr, "ERROR: unable to process assets while packaging '%s'\n",
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outputFile.string());
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result = count;
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goto bail;
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}
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if (bundle->getVerbose()) {
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printf("Generated %d file%s\n", count, (count==1) ? "" : "s");
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}
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count = processJarFiles(bundle, zip);
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if (count < 0) {
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fprintf(stderr, "ERROR: unable to process jar files while packaging '%s'\n",
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outputFile.string());
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result = count;
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goto bail;
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}
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if (bundle->getVerbose())
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printf("Included %d file%s from jar/zip files.\n", count, (count==1) ? "" : "s");
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result = NO_ERROR;
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/*
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* Check for cruft. We set the "marked" flag on all entries we created
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* or decided not to update. If the entry isn't already slated for
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* deletion, remove it now.
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*/
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{
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if (bundle->getVerbose())
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printf("Checking for deleted files\n");
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int i, removed = 0;
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for (i = 0; i < zip->getNumEntries(); i++) {
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ZipEntry* entry = zip->getEntryByIndex(i);
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if (!entry->getMarked() && entry->getDeleted()) {
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if (bundle->getVerbose()) {
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printf(" (removing crufty '%s')\n",
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entry->getFileName());
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}
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zip->remove(entry);
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removed++;
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}
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}
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if (bundle->getVerbose() && removed > 0)
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printf("Removed %d file%s\n", removed, (removed==1) ? "" : "s");
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}
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/* tell Zip lib to process deletions and other pending changes */
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result = zip->flush();
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if (result != NO_ERROR) {
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fprintf(stderr, "ERROR: Zip flush failed, archive may be hosed\n");
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goto bail;
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}
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/* anything here? */
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if (zip->getNumEntries() == 0) {
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if (bundle->getVerbose()) {
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printf("Archive is empty -- removing %s\n", outputFile.getPathLeaf().string());
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}
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delete zip; // close the file so we can remove it in Win32
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zip = NULL;
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if (unlink(outputFile.string()) != 0) {
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fprintf(stderr, "warning: could not unlink '%s'\n", outputFile.string());
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}
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}
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assert(result == NO_ERROR);
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bail:
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delete zip; // must close before remove in Win32
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if (result != NO_ERROR) {
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if (bundle->getVerbose()) {
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printf("Removing %s due to earlier failures\n", outputFile.string());
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}
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if (unlink(outputFile.string()) != 0) {
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fprintf(stderr, "warning: could not unlink '%s'\n", outputFile.string());
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}
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}
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if (result == NO_ERROR && bundle->getVerbose())
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printf("Done!\n");
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return result;
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}
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ssize_t processAssets(Bundle* bundle, ZipFile* zip,
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const sp<AaptAssets>& assets)
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{
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ResourceFilter filter;
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status_t status = filter.parse(bundle->getConfigurations());
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if (status != NO_ERROR) {
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return -1;
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}
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ssize_t count = 0;
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const size_t N = assets->getGroupEntries().size();
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for (size_t i=0; i<N; i++) {
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const AaptGroupEntry& ge = assets->getGroupEntries()[i];
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if (!filter.match(ge.toParams())) {
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continue;
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}
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ssize_t res = processAssets(bundle, zip, assets, ge);
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if (res < 0) {
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return res;
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}
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count += res;
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}
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return count;
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}
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ssize_t processAssets(Bundle* bundle, ZipFile* zip,
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const sp<AaptDir>& dir, const AaptGroupEntry& ge)
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{
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ssize_t count = 0;
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const size_t ND = dir->getDirs().size();
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size_t i;
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for (i=0; i<ND; i++) {
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ssize_t res = processAssets(bundle, zip, dir->getDirs().valueAt(i), ge);
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if (res < 0) {
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return res;
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}
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count += res;
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}
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const size_t NF = dir->getFiles().size();
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for (i=0; i<NF; i++) {
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sp<AaptGroup> gp = dir->getFiles().valueAt(i);
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ssize_t fi = gp->getFiles().indexOfKey(ge);
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if (fi >= 0) {
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sp<AaptFile> fl = gp->getFiles().valueAt(fi);
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if (!processFile(bundle, zip, gp, fl)) {
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return UNKNOWN_ERROR;
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}
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count++;
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}
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}
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return count;
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}
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/*
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* Process a regular file, adding it to the archive if appropriate.
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*
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* If we're in "update" mode, and the file already exists in the archive,
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* delete the existing entry before adding the new one.
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*/
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bool processFile(Bundle* bundle, ZipFile* zip,
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const sp<AaptGroup>& group, const sp<AaptFile>& file)
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{
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const bool hasData = file->hasData();
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String8 storageName(group->getPath());
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storageName.convertToResPath();
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ZipEntry* entry;
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bool fromGzip = false;
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status_t result;
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/*
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* See if the filename ends in ".EXCLUDE". We can't use
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* String8::getPathExtension() because the length of what it considers
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* to be an extension is capped.
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*
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* The Asset Manager doesn't check for ".EXCLUDE" in Zip archives,
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* so there's no value in adding them (and it makes life easier on
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* the AssetManager lib if we don't).
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*
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* NOTE: this restriction has been removed. If you're in this code, you
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* should clean this up, but I'm in here getting rid of Path Name, and I
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* don't want to make other potentially breaking changes --joeo
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*/
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int fileNameLen = storageName.length();
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int excludeExtensionLen = strlen(kExcludeExtension);
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if (fileNameLen > excludeExtensionLen
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&& (0 == strcmp(storageName.string() + (fileNameLen - excludeExtensionLen),
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kExcludeExtension))) {
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fprintf(stderr, "warning: '%s' not added to Zip\n", storageName.string());
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return true;
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}
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if (strcasecmp(storageName.getPathExtension().string(), ".gz") == 0) {
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fromGzip = true;
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storageName = storageName.getBasePath();
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}
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if (bundle->getUpdate()) {
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entry = zip->getEntryByName(storageName.string());
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if (entry != NULL) {
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/* file already exists in archive; there can be only one */
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if (entry->getMarked()) {
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fprintf(stderr,
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"ERROR: '%s' exists twice (check for with & w/o '.gz'?)\n",
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file->getPrintableSource().string());
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return false;
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}
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if (!hasData) {
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const String8& srcName = file->getSourceFile();
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time_t fileModWhen;
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fileModWhen = getFileModDate(srcName.string());
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if (fileModWhen == (time_t) -1) { // file existence tested earlier,
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return false; // not expecting an error here
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}
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if (fileModWhen > entry->getModWhen()) {
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// mark as deleted so add() will succeed
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if (bundle->getVerbose()) {
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printf(" (removing old '%s')\n", storageName.string());
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}
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zip->remove(entry);
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} else {
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// version in archive is newer
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if (bundle->getVerbose()) {
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printf(" (not updating '%s')\n", storageName.string());
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}
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entry->setMarked(true);
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return true;
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}
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} else {
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// Generated files are always replaced.
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zip->remove(entry);
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}
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}
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}
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//android_setMinPriority(NULL, ANDROID_LOG_VERBOSE);
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if (fromGzip) {
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result = zip->addGzip(file->getSourceFile().string(), storageName.string(), &entry);
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} else if (!hasData) {
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/* don't compress certain files, e.g. PNGs */
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int compressionMethod = bundle->getCompressionMethod();
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if (!okayToCompress(bundle, storageName)) {
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compressionMethod = ZipEntry::kCompressStored;
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}
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result = zip->add(file->getSourceFile().string(), storageName.string(), compressionMethod,
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&entry);
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} else {
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result = zip->add(file->getData(), file->getSize(), storageName.string(),
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file->getCompressionMethod(), &entry);
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}
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if (result == NO_ERROR) {
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if (bundle->getVerbose()) {
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printf(" '%s'%s", storageName.string(), fromGzip ? " (from .gz)" : "");
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if (entry->getCompressionMethod() == ZipEntry::kCompressStored) {
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printf(" (not compressed)\n");
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} else {
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printf(" (compressed %d%%)\n", calcPercent(entry->getUncompressedLen(),
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entry->getCompressedLen()));
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}
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}
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entry->setMarked(true);
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} else {
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if (result == ALREADY_EXISTS) {
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fprintf(stderr, " Unable to add '%s': file already in archive (try '-u'?)\n",
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file->getPrintableSource().string());
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} else {
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fprintf(stderr, " Unable to add '%s': Zip add failed\n",
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file->getPrintableSource().string());
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}
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return false;
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}
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return true;
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}
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/*
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* Determine whether or not we want to try to compress this file based
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* on the file extension.
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*/
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bool okayToCompress(Bundle* bundle, const String8& pathName)
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{
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String8 ext = pathName.getPathExtension();
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int i;
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if (ext.length() == 0)
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return true;
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for (i = 0; i < NELEM(kNoCompressExt); i++) {
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if (strcasecmp(ext.string(), kNoCompressExt[i]) == 0)
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return false;
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}
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const android::Vector<const char*>& others(bundle->getNoCompressExtensions());
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for (i = 0; i < (int)others.size(); i++) {
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const char* str = others[i];
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int pos = pathName.length() - strlen(str);
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if (pos < 0) {
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continue;
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}
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const char* path = pathName.string();
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if (strcasecmp(path + pos, str) == 0) {
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return false;
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}
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}
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return true;
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}
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bool endsWith(const char* haystack, const char* needle)
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{
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size_t a = strlen(haystack);
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size_t b = strlen(needle);
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if (a < b) return false;
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return strcasecmp(haystack+(a-b), needle) == 0;
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}
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ssize_t processJarFile(ZipFile* jar, ZipFile* out)
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{
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status_t err;
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size_t N = jar->getNumEntries();
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size_t count = 0;
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for (size_t i=0; i<N; i++) {
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ZipEntry* entry = jar->getEntryByIndex(i);
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const char* storageName = entry->getFileName();
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if (endsWith(storageName, ".class")) {
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int compressionMethod = entry->getCompressionMethod();
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size_t size = entry->getUncompressedLen();
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const void* data = jar->uncompress(entry);
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if (data == NULL) {
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fprintf(stderr, "ERROR: unable to uncompress entry '%s'\n",
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storageName);
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return -1;
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}
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out->add(data, size, storageName, compressionMethod, NULL);
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free((void*)data);
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}
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count++;
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}
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return count;
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}
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ssize_t processJarFiles(Bundle* bundle, ZipFile* zip)
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{
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ssize_t err;
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ssize_t count = 0;
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const android::Vector<const char*>& jars = bundle->getJarFiles();
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size_t N = jars.size();
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for (size_t i=0; i<N; i++) {
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ZipFile jar;
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err = jar.open(jars[i], ZipFile::kOpenReadOnly);
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if (err != 0) {
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fprintf(stderr, "ERROR: unable to open '%s' as a zip file: %zd\n",
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jars[i], err);
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return err;
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}
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err += processJarFile(&jar, zip);
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if (err < 0) {
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fprintf(stderr, "ERROR: unable to process '%s'\n", jars[i]);
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return err;
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}
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count += err;
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}
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return count;
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}
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