Windows: "find_java" exe and lib for android.bat
This adds a "find_java.exe" that will be packages
in SDK/tools/lib. It will be used by android.bat
and the other launchers to locate the best version
of java to use for our tools (currently we have
a find_java.bat that uses DOS commands to achieve
something similar but more limited).
In addition this creates a static "findjavalib"
that is used by the NSIS installer to locate
java and get its version (to complain in case we
only find a Java 1.4 or lesser). The goal is for
the installer to use the same logic as the tools
will use to locate the java binary.
Change-Id: Ic2efb388135087bab9687c3332882047fd041b1c
diff --git a/find_java/utils.h b/find_java/utils.h
new file mode 100755
index 0000000..a2260b6
--- /dev/null
+++ b/find_java/utils.h
@@ -0,0 +1,375 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _H_UTILS
+#define _H_UTILS
+
+#ifdef _WIN32
+
+#define _CRT_SECURE_NO_WARNINGS 1
+
+#include <direct.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+#include <windows.h>
+
+// VS vs MINGW specific includes
+#ifdef USE_VS_CRT
+ #include <crtdbg.h> // for _ASSERT
+#else
+ #define _ASSERT(x) // undef
+#endif
+
+extern bool gIsDebug;
+extern bool gIsConsole;
+
+// An array that knows its own size. Not dynamically resizable.
+template <class T> class CArray {
+ T* mPtr;
+ int mSize;
+public:
+ explicit CArray(int size) {
+ mSize = size;
+ mPtr = new T[size];
+ }
+
+ ~CArray() {
+ if (mPtr != NULL) {
+ delete[] mPtr;
+ mPtr = NULL;
+ }
+ mSize = 0;
+ }
+
+ T& operator[](int i) {
+ _ASSERT(i >= 0 && i < mSize);
+ return mPtr[i];
+ }
+
+ int size() const {
+ return mSize;
+ }
+};
+
+// A simple string class wrapper.
+class CString {
+protected:
+ char *mStr;
+public:
+ CString() { mStr = NULL; }
+ CString(const CString &str) { mStr = NULL; set(str.mStr); }
+ explicit CString(const char *str) { mStr = NULL; set(str); }
+ CString(const char *start, int length) { mStr = NULL; set(start, length); }
+
+ CString& operator=(const CString &str) {
+ return set(str.cstr());
+ }
+
+ CString& set(const char *str) {
+ if (str != mStr) {
+ _free();
+ if (str != NULL) {
+ mStr = _strdup(str);
+ }
+ }
+ return *this;
+ }
+
+ CString& set(const char *start, int length) {
+ _free();
+ if (start != NULL) {
+ mStr = (char *)malloc(length + 1);
+ strncpy(mStr, start, length);
+ mStr[length] = 0;
+ }
+ return *this;
+ }
+
+ CString& setv(const char *str, va_list ap) {
+ _free();
+ // _vscprintf(str, ap) is only available with the MSVCRT, not MinGW.
+ // Instead we'll iterate till we have enough space to generate the string.
+ int len = strlen(str) + 1024;
+ mStr = (char *)malloc(len);
+ strcpy(mStr, str); // provide a default in case vsnprintf totally fails
+ for (int guard = 0; guard < 10; guard++) {
+ int ret = vsnprintf(mStr, len, str, ap);
+ if (ret == -1) {
+ // Some implementations don't give the proper size needed
+ // so double the space and try again.
+ len *= 2;
+ } else if (ret >= len) {
+ len = ret + 1;
+ } else {
+ // There was enough space to write.
+ break;
+ }
+ mStr = (char *)realloc((void *)mStr, len);
+ strcpy(mStr, str); // provide a default in case vsnprintf totally fails
+ }
+ return *this;
+ }
+
+ CString& setf(const char *str, ...) {
+ _free();
+ va_list ap;
+ va_start(ap, str);
+ setv(str, ap);
+ va_end(ap);
+ return *this;
+ }
+
+ virtual ~CString() { _free(); }
+
+ // Returns the C string owned by this CString. It will be
+ // invalid as soon as this CString is deleted or out of scope.
+ const char * cstr() const {
+ return mStr;
+ }
+
+ bool isEmpty() const {
+ return mStr == NULL || *mStr == 0;
+ }
+
+ int length() const {
+ return mStr == NULL ? 0 : strlen(mStr);
+ }
+
+ CString& add(const char *str) {
+ if (mStr == NULL) {
+ set(str);
+ } else {
+ mStr = (char *)realloc((void *)mStr, strlen(mStr) + strlen(str) + 1);
+ strcat(mStr, str);
+ }
+ return *this;
+ }
+
+ CString& add(const char *str, int length) {
+ if (mStr == NULL) {
+ set(str, length);
+ } else {
+ int l1 = strlen(mStr);
+ mStr = (char *)realloc((void *)mStr, l1 + length + 1);
+ strncpy(mStr + l1, str, length);
+ mStr[l1 + length] = 0;
+ }
+ return *this;
+ }
+
+ CArray<CString> * split(char sep) const {
+ if (mStr == NULL) {
+ return new CArray<CString>(0);
+ }
+ const char *last = NULL;
+ int n = 0;
+ for (const char *s = mStr; *s; s++) {
+ if (*s == sep && s != mStr && (last == NULL || s > last+1)) {
+ n++;
+ last = s;
+ }
+ }
+
+ CArray<CString> *result = new CArray<CString>(n);
+ last = NULL;
+ n = 0;
+ for (const char *s = mStr; *s; s++) {
+ if (*s == sep) {
+ if (s != mStr && (last == NULL || s > last+1)) {
+ const char *start = last ? last : mStr;
+ (*result)[n++].set(start, s-start);
+ }
+ last = s+1;
+ }
+ }
+
+ return result;
+ }
+
+ // Sets the string to the message matching Win32 GetLastError.
+ CString& setLastWin32Error() {
+ DWORD err = GetLastError();
+ LPSTR errStr;
+ if (FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER | /* dwFlags */
+ FORMAT_MESSAGE_FROM_SYSTEM,
+ NULL, /* lpSource */
+ err, /* dwMessageId */
+ 0, /* dwLanguageId */
+ (LPSTR)&errStr, /* lpBuffer */
+ 0, /* nSize */
+ NULL) != 0) { /* va_list args */
+ setf("[%d] %s", err, errStr);
+ LocalFree(errStr);
+ }
+ return *this;
+ }
+
+private:
+ void _free() {
+ if (mStr != NULL) {
+ free((void *)mStr);
+ mStr = NULL;
+ }
+ }
+
+};
+
+// A simple path class wrapper.
+class CPath : public CString {
+public:
+ CPath() : CString() { }
+ CPath(const CString &str) : CString(str) { }
+ CPath(const CPath &str) : CString(str) { }
+ explicit CPath(const char *str) : CString(str) { }
+ CPath(const char *start, int length) : CString(start, length) { }
+
+ CPath& operator=(const CPath &str) {
+ set(str.cstr());
+ return *this;
+ }
+
+ // Appends a path segment, adding a \ as necessary.
+ CPath& addPath(const CString &s) {
+ return addPath(s.cstr());
+ }
+
+ // Appends a path segment, adding a \ as necessary.
+ CPath& addPath(const char *s) {
+ _ASSERT(s != NULL);
+ if (s != NULL && s[0] != 0) {
+ int n = length();
+ if (n > 0 && s[0] != '\\' && mStr[n-1] != '\\') add("\\");
+ add(s);
+ }
+ return *this;
+ }
+
+ // Returns true if file exist and is not a directory.
+ // There's no garantee we have rights to access it.
+ bool fileExists() const {
+ if (mStr == NULL) return false;
+ DWORD attribs = GetFileAttributesA(mStr);
+ return attribs != INVALID_FILE_ATTRIBUTES &&
+ !(attribs & FILE_ATTRIBUTE_DIRECTORY);
+ }
+
+ // Returns true if file exist and is a directory.
+ // There's no garantee we have rights to access it.
+ bool dirExists() const {
+ if (mStr == NULL) return false;
+ DWORD attribs = GetFileAttributesA(mStr);
+ return attribs != INVALID_FILE_ATTRIBUTES &&
+ (attribs & FILE_ATTRIBUTE_DIRECTORY) != 0;
+ }
+
+ // Returns a copy of the directory portion of the path, if any
+ CPath dirName() const {
+ CPath result;
+ if (mStr != NULL) {
+ char *pos = strrchr(mStr, '\\');
+ if (pos != NULL) {
+ result.set(mStr, pos - mStr);
+ }
+ }
+ return result;
+ }
+
+ // Returns a pointer to the baseName part of the path.
+ // It becomes invalid if the path changes.
+ const char * baseName() const {
+ if (mStr != NULL) {
+ char *pos = strrchr(mStr, '\\');
+ if (pos != NULL) {
+ return pos + 1;
+ }
+ }
+ return NULL;
+ }
+
+ // If the path ends with the given searchName, replace in-place by the new name
+ void replaceName(const char *searchName, const char* newName) {
+ if (mStr == NULL) return;
+ int n = length();
+ int sn = strlen(searchName);
+ if (n < sn) return;
+ // if mStr ends with searchName
+ if (strcmp(mStr + n - sn, searchName) == 0) {
+ int sn2 = strlen(newName);
+ if (sn2 > sn) {
+ mStr = (char *)realloc((void *)mStr, n + sn2 - sn + 1);
+ }
+ strcpy(mStr + n - sn, newName);
+ mStr[n + sn2 - sn] = 0;
+ }
+ }
+
+ // Returns a copy of this path as a DOS short path in the destination.
+ // Returns true if the Win32 getShortPathName method worked.
+ // In case of error, returns false and does not change the destination.
+ // It's OK to invoke this->toShortPath(this).
+ bool toShortPath(CPath *dest) {
+ const char *longPath = mStr;
+ if (mStr == NULL) return false;
+
+ DWORD lenShort = strlen(longPath) + 1;
+ char * shortPath = (char *)malloc(lenShort);
+
+ DWORD length = GetShortPathName(longPath, shortPath, lenShort);
+ if (length > lenShort) {
+ // The buffer wasn't big enough, this is the size to use.
+ free(shortPath);
+ lenShort = length;
+ shortPath = (char *)malloc(length);
+ length = GetShortPathName(longPath, shortPath, lenShort);
+ }
+
+ if (length != 0) dest->set(shortPath);
+
+ free(shortPath);
+ return length != 0;
+ }
+};
+
+// Displays a message in an ok+info dialog box.
+void msgBox(const char* text, ...);
+
+// Displays GetLastError prefixed with a description in an error dialog box
+void displayLastError(const char *description, ...);
+
+// Executes the command line. Does not wait for the program to finish.
+// The return code is from CreateProcess (0 means failure), not the running app.
+int execNoWait(const char *app, const char *params, const char *workDir);
+
+// Executes command, waits for completion and returns exit code.
+// As indicated in MSDN for CreateProcess, callers should double-quote the program name
+// e.g. cmd="\"c:\program files\myapp.exe\" arg1 arg2";
+int execWait(const char *cmd);
+
+bool getModuleDir(CPath *outDir);
+
+// Disables the FS redirection done by WOW64.
+// Because this runs as a 32-bit app, Windows automagically remaps some
+// folder under the hood (e.g. "Programs Files(x86)" is mapped as "Program Files").
+// This prevents the app from correctly searching for java.exe in these folders.
+// The registry is also remapped.
+PVOID disableWow64FsRedirection();
+
+// Reverts the redirection disabled in disableWow64FsRedirection.
+void revertWow64FsRedirection(PVOID oldWow64Value);
+
+#endif /* _WIN32 */
+#endif /* _H_UTILS */