Add single crunch command to aapt. do not merge.

Previously the crunch command would work on a full res folder
and output a full res folder (with only the drawables). This
was only used in the SDK.

The incremental logic is moved to the SDK build system so we
change the crunch command (or rather add a new one) to only
crunch a single file.

(cherry picked from commit b1f6ad82dd8d1702617a757a88430604b3131fac)

Change-Id: I3653f67ee321eac37cb8a6d228b1ef6d104ff0be

4 files changed, 62 insertions, 8 deletions

diff --git a/tools/aapt/Bundle.h b/tools/aapt/Bundle.h
index fde3bd6..5089b9d 100644
--- a/tools/aapt/Bundle.h
+++ b/tools/aapt/Bundle.h
@@ -38,6 +38,7 @@ typedef enum Command {
     kCommandRemove,
     kCommandPackage,
     kCommandCrunch,
+    kCommandSingleCrunch,
 } Command;
 
 /*
@@ -62,6 +63,7 @@ public:
           mVersionCode(NULL), mVersionName(NULL), mCustomPackage(NULL), mExtraPackages(NULL),
           mMaxResVersion(NULL), mDebugMode(false), mNonConstantId(false), mProduct(NULL),
           mUseCrunchCache(false), mErrorOnFailedInsert(false), mOutputTextSymbols(NULL),
+          mSingleCrunchInputFile(NULL), mSingleCrunchOutputFile(NULL),
           mArgc(0), mArgv(NULL)
         {}
     ~Bundle(void) {}
@@ -176,6 +178,10 @@ public:
     bool getUseCrunchCache() const { return mUseCrunchCache; }
     const char* getOutputTextSymbols() const { return mOutputTextSymbols; }
     void setOutputTextSymbols(const char* val) { mOutputTextSymbols = val; }
+    const char* getSingleCrunchInputFile() const { return mSingleCrunchInputFile; }
+    void setSingleCrunchInputFile(const char* val) { mSingleCrunchInputFile = val; }
+    const char* getSingleCrunchOutputFile() const { return mSingleCrunchOutputFile; }
+    void setSingleCrunchOutputFile(const char* val) { mSingleCrunchOutputFile = val; }
 
     /*
      * Set and get the file specification.
@@ -283,6 +289,8 @@ private:
     bool        mUseCrunchCache;
     bool        mErrorOnFailedInsert;
     const char* mOutputTextSymbols;
+    const char* mSingleCrunchInputFile;
+    const char* mSingleCrunchOutputFile;
 
     /* file specification */
     int         mArgc;
diff --git a/tools/aapt/Command.cpp b/tools/aapt/Command.cpp
index 0a5e590..b98925b 100644
--- a/tools/aapt/Command.cpp
+++ b/tools/aapt/Command.cpp
@@ -7,6 +7,7 @@
 #include "Bundle.h"
 #include "ResourceFilter.h"
 #include "ResourceTable.h"
+#include "Images.h"
 #include "XMLNode.h"
 
 #include <utils/Log.h>
@@ -1839,6 +1840,21 @@ int doCrunch(Bundle* bundle)
     return NO_ERROR;
 }
 
+/*
+ * Do PNG Crunching on a single flag
+ *  -i points to a single png file
+ *  -o points to a single png output file
+ */
+int doSingleCrunch(Bundle* bundle)
+{
+    fprintf(stdout, "Crunching single PNG file: %s\n", bundle->getSingleCrunchInputFile());
+    fprintf(stdout, "\tOutput file: %s\n", bundle->getSingleCrunchOutputFile());
+
+    String8 input(bundle->getSingleCrunchInputFile());
+    String8 output(bundle->getSingleCrunchOutputFile());
+    return preProcessImageToCache(bundle, input, output);
+}
+
 char CONSOLE_DATA[2925] = {
     32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
     32, 32, 32, 32, 32, 32, 32, 95, 46, 32, 32, 32, 32, 32, 32, 32, 32, 32,
diff --git a/tools/aapt/Main.cpp b/tools/aapt/Main.cpp
index f398de0..32fecb2 100644
--- a/tools/aapt/Main.cpp
+++ b/tools/aapt/Main.cpp
@@ -85,7 +85,11 @@ void usage(void)
         "   Add specified files to Zip-compatible archive.\n\n", gProgName);
     fprintf(stderr,
         " %s c[runch] [-v] -S resource-sources ... -C output-folder ...\n"
-        "   Do PNG preprocessing and store the results in output folder.\n\n", gProgName);
+        "   Do PNG preprocessing on one or several resource folders\n"
+        "   and store the results in the output folder.\n\n", gProgName);
+    fprintf(stderr,
+        " %s s[ingleCrunch] [-v] -i input-file -o outputfile\n"
+        "   Do PNG preprocessing on a single file.\n\n", gProgName);
     fprintf(stderr,
         " %s v[ersion]\n"
         "   Print program version.\n\n", gProgName);
@@ -203,13 +207,14 @@ int handleCommand(Bundle* bundle)
     //    printf("  %d: '%s'\n", i, bundle->getFileSpecEntry(i));
 
     switch (bundle->getCommand()) {
-    case kCommandVersion:   return doVersion(bundle);
-    case kCommandList:      return doList(bundle);
-    case kCommandDump:      return doDump(bundle);
-    case kCommandAdd:       return doAdd(bundle);
-    case kCommandRemove:    return doRemove(bundle);
-    case kCommandPackage:   return doPackage(bundle);
-    case kCommandCrunch:    return doCrunch(bundle);
+    case kCommandVersion:      return doVersion(bundle);
+    case kCommandList:         return doList(bundle);
+    case kCommandDump:         return doDump(bundle);
+    case kCommandAdd:          return doAdd(bundle);
+    case kCommandRemove:       return doRemove(bundle);
+    case kCommandPackage:      return doPackage(bundle);
+    case kCommandCrunch:       return doCrunch(bundle);
+    case kCommandSingleCrunch: return doSingleCrunch(bundle);
     default:
         fprintf(stderr, "%s: requested command not yet supported\n", gProgName);
         return 1;
@@ -249,6 +254,8 @@ int main(int argc, char* const argv[])
         bundle.setCommand(kCommandPackage);
     else if (argv[1][0] == 'c')
         bundle.setCommand(kCommandCrunch);
+    else if (argv[1][0] == 's')
+        bundle.setCommand(kCommandSingleCrunch);
     else {
         fprintf(stderr, "ERROR: Unknown command '%s'\n", argv[1]);
         wantUsage = true;
@@ -427,6 +434,28 @@ int main(int argc, char* const argv[])
                 convertPath(argv[0]);
                 bundle.setCrunchedOutputDir(argv[0]);
                 break;
+            case 'i':
+                argc--;
+                argv++;
+                if (!argc) {
+                    fprintf(stderr, "ERROR: No argument supplied for '-i' option\n");
+                    wantUsage = true;
+                    goto bail;
+                }
+                convertPath(argv[0]);
+                bundle.setSingleCrunchInputFile(argv[0]);
+                break;
+            case 'o':
+                argc--;
+                argv++;
+                if (!argc) {
+                    fprintf(stderr, "ERROR: No argument supplied for '-o' option\n");
+                    wantUsage = true;
+                    goto bail;
+                }
+                convertPath(argv[0]);
+                bundle.setSingleCrunchOutputFile(argv[0]);
+                break;
             case '0':
                 argc--;
                 argv++;
diff --git a/tools/aapt/Main.h b/tools/aapt/Main.h
index d20c601..a6b39ac 100644
--- a/tools/aapt/Main.h
+++ b/tools/aapt/Main.h
@@ -29,6 +29,7 @@ extern int doAdd(Bundle* bundle);
 extern int doRemove(Bundle* bundle);
 extern int doPackage(Bundle* bundle);
 extern int doCrunch(Bundle* bundle);
+extern int doSingleCrunch(Bundle* bundle);
 
 extern int calcPercent(long uncompressedLen, long compressedLen);