ProGuard：当试图缩小库时，它只会返回我的项目文件

Question

我需要缩小 Scala 库以仅包含我的项目所需的文件 (stayAway)。

问题是，它只是还给我一个 jar，里面有我的项目文件；不是缩小的图书馆。在 Input/Output 菜单中，我尝试通过各种可能的组合来移动内容：

(Configuration used below)
1.
Programs Jars (PJ): Project Jar, Output Jar
Library Jars (LJ): Scala Library Jar, Java Library Jar
Yields: My original project files in a jar

2.
PJs: Project Jar, Scala Library Jar, Output Jar
LJs: Java Library Jar
Yields: My project files coupled with the entire Scala library in a jar

3.
PJs: Scala Library Jar, Output Jar
LJs: Project Files, Java Library Jar
Yields: The entire Scala library in a jar

我只想要一个缩小的 Scala 库 jar！好像完全无视我的项目文件。

我正在使用以下配置（由 GUI 生成）：

-injars 'C:\Users\Brendon\Desktop\stayAway'
-outjars 'C:\Users\Brendon\Desktop\ProGuard Output\shrunkScalaLibrary.jar'

-libraryjars 'C:\Users\Brendon\Desktop\scala-library.jar'
-libraryjars 'C:\Program Files (x86)\Java\jre1.8.0_40\lib\rt.jar'

-dontskipnonpubliclibraryclassmembers
-dontobfuscate
-keepattributes Exceptions,InnerClasses,Signature,Deprecated,SourceFile,LineNumberTable,LocalVariable*Table,*Annotation*,Synthetic,EnclosingMethod
-verbose
-ignorewarnings


-keep class stayAway.MainFrame

# Keep - Library. Keep all public and protected classes, fields, and methods.
-keep public class * {
    public protected <fields>;
    public protected <methods>;
}

# Keep names - Native method names. Keep all native class/method names.
-keepclasseswithmembers,includedescriptorclasses,allowshrinking class * {
    native <methods>;
}

# Remove - System method calls. Remove all invocations of System
# methods without side effects whose return values are not used.
-assumenosideeffects public class java.lang.System {
    public static long currentTimeMillis();
    static java.lang.Class getCallerClass();
    public static int identityHashCode(java.lang.Object);
    public static java.lang.SecurityManager getSecurityManager();
    public static java.util.Properties getProperties();
    public static java.lang.String getProperty(java.lang.String);
    public static java.lang.String getenv(java.lang.String);
    public static java.lang.String mapLibraryName(java.lang.String);
    public static java.lang.String getProperty(java.lang.String,java.lang.String);
}

# Remove - Math method calls. Remove all invocations of Math
# methods without side effects whose return values are not used.
-assumenosideeffects public class java.lang.Math {
    public static double sin(double);
    public static double cos(double);
    public static double tan(double);
    public static double asin(double);
    public static double acos(double);
    public static double atan(double);
    public static double toRadians(double);
    public static double toDegrees(double);
    public static double exp(double);
    public static double log(double);
    public static double log10(double);
    public static double sqrt(double);
    public static double cbrt(double);
    public static double IEEEremainder(double,double);
    public static double ceil(double);
    public static double floor(double);
    public static double rint(double);
    public static double atan2(double,double);
    public static double pow(double,double);
    public static int round(float);
    public static long round(double);
    public static double random();
    public static int abs(int);
    public static long abs(long);
    public static float abs(float);
    public static double abs(double);
    public static int max(int,int);
    public static long max(long,long);
    public static float max(float,float);
    public static double max(double,double);
    public static int min(int,int);
    public static long min(long,long);
    public static float min(float,float);
    public static double min(double,double);
    public static double ulp(double);
    public static float ulp(float);
    public static double signum(double);
    public static float signum(float);
    public static double sinh(double);
    public static double cosh(double);
    public static double tanh(double);
    public static double hypot(double,double);
    public static double expm1(double);
    public static double log1p(double);
}

# Remove - Number method calls. Remove all invocations of Number
# methods without side effects whose return values are not used.
-assumenosideeffects public class java.lang.* extends java.lang.Number {
    public static java.lang.String toString(byte);
    public static java.lang.Byte valueOf(byte);
    public static byte parseByte(java.lang.String);
    public static byte parseByte(java.lang.String,int);
    public static java.lang.Byte valueOf(java.lang.String,int);
    public static java.lang.Byte valueOf(java.lang.String);
    public static java.lang.Byte decode(java.lang.String);
    public int compareTo(java.lang.Byte);
    public static java.lang.String toString(short);
    public static short parseShort(java.lang.String);
    public static short parseShort(java.lang.String,int);
    public static java.lang.Short valueOf(java.lang.String,int);
    public static java.lang.Short valueOf(java.lang.String);
    public static java.lang.Short valueOf(short);
    public static java.lang.Short decode(java.lang.String);
    public static short reverseBytes(short);
    public int compareTo(java.lang.Short);
    public static java.lang.String toString(int,int);
    public static java.lang.String toHexString(int);
    public static java.lang.String toOctalString(int);
    public static java.lang.String toBinaryString(int);
    public static java.lang.String toString(int);
    public static int parseInt(java.lang.String,int);
    public static int parseInt(java.lang.String);
    public static java.lang.Integer valueOf(java.lang.String,int);
    public static java.lang.Integer valueOf(java.lang.String);
    public static java.lang.Integer valueOf(int);
    public static java.lang.Integer getInteger(java.lang.String);
    public static java.lang.Integer getInteger(java.lang.String,int);
    public static java.lang.Integer getInteger(java.lang.String,java.lang.Integer);
    public static java.lang.Integer decode(java.lang.String);
    public static int highestOneBit(int);
    public static int lowestOneBit(int);
    public static int numberOfLeadingZeros(int);
    public static int numberOfTrailingZeros(int);
    public static int bitCount(int);
    public static int rotateLeft(int,int);
    public static int rotateRight(int,int);
    public static int reverse(int);
    public static int signum(int);
    public static int reverseBytes(int);
    public int compareTo(java.lang.Integer);
    public static java.lang.String toString(long,int);
    public static java.lang.String toHexString(long);
    public static java.lang.String toOctalString(long);
    public static java.lang.String toBinaryString(long);
    public static java.lang.String toString(long);
    public static long parseLong(java.lang.String,int);
    public static long parseLong(java.lang.String);
    public static java.lang.Long valueOf(java.lang.String,int);
    public static java.lang.Long valueOf(java.lang.String);
    public static java.lang.Long valueOf(long);
    public static java.lang.Long decode(java.lang.String);
    public static java.lang.Long getLong(java.lang.String);
    public static java.lang.Long getLong(java.lang.String,long);
    public static java.lang.Long getLong(java.lang.String,java.lang.Long);
    public static long highestOneBit(long);
    public static long lowestOneBit(long);
    public static int numberOfLeadingZeros(long);
    public static int numberOfTrailingZeros(long);
    public static int bitCount(long);
    public static long rotateLeft(long,int);
    public static long rotateRight(long,int);
    public static long reverse(long);
    public static int signum(long);
    public static long reverseBytes(long);
    public int compareTo(java.lang.Long);
    public static java.lang.String toString(float);
    public static java.lang.String toHexString(float);
    public static java.lang.Float valueOf(java.lang.String);
    public static java.lang.Float valueOf(float);
    public static float parseFloat(java.lang.String);
    public static boolean isNaN(float);
    public static boolean isInfinite(float);
    public static int floatToIntBits(float);
    public static int floatToRawIntBits(float);
    public static float intBitsToFloat(int);
    public static int compare(float,float);
    public boolean isNaN();
    public boolean isInfinite();
    public int compareTo(java.lang.Float);
    public static java.lang.String toString(double);
    public static java.lang.String toHexString(double);
    public static java.lang.Double valueOf(java.lang.String);
    public static java.lang.Double valueOf(double);
    public static double parseDouble(java.lang.String);
    public static boolean isNaN(double);
    public static boolean isInfinite(double);
    public static long doubleToLongBits(double);
    public static long doubleToRawLongBits(double);
    public static double longBitsToDouble(long);
    public static int compare(double,double);
    public boolean isNaN();
    public boolean isInfinite();
    public int compareTo(java.lang.Double);
    public byte byteValue();
    public short shortValue();
    public int intValue();
    public long longValue();
    public float floatValue();
    public double doubleValue();
    public int compareTo(java.lang.Object);
    public boolean equals(java.lang.Object);
    public int hashCode();
    public java.lang.String toString();
}

# Remove - String method calls. Remove all invocations of String
# methods without side effects whose return values are not used.
-assumenosideeffects public class java.lang.String {
    public static java.lang.String copyValueOf(char[]);
    public static java.lang.String copyValueOf(char[],int,int);
    public static java.lang.String valueOf(boolean);
    public static java.lang.String valueOf(char);
    public static java.lang.String valueOf(char[]);
    public static java.lang.String valueOf(char[],int,int);
    public static java.lang.String valueOf(double);
    public static java.lang.String valueOf(float);
    public static java.lang.String valueOf(int);
    public static java.lang.String valueOf(java.lang.Object);
    public static java.lang.String valueOf(long);
    public boolean contentEquals(java.lang.StringBuffer);
    public boolean endsWith(java.lang.String);
    public boolean equalsIgnoreCase(java.lang.String);
    public boolean equals(java.lang.Object);
    public boolean matches(java.lang.String);
    public boolean regionMatches(boolean,int,java.lang.String,int,int);
    public boolean regionMatches(int,java.lang.String,int,int);
    public boolean startsWith(java.lang.String);
    public boolean startsWith(java.lang.String,int);
    public byte[] getBytes();
    public byte[] getBytes(java.lang.String);
    public char charAt(int);
    public char[] toCharArray();
    public int compareToIgnoreCase(java.lang.String);
    public int compareTo(java.lang.Object);
    public int compareTo(java.lang.String);
    public int hashCode();
    public int indexOf(int);
    public int indexOf(int,int);
    public int indexOf(java.lang.String);
    public int indexOf(java.lang.String,int);
    public int lastIndexOf(int);
    public int lastIndexOf(int,int);
    public int lastIndexOf(java.lang.String);
    public int lastIndexOf(java.lang.String,int);
    public int length();
    public java.lang.CharSequence subSequence(int,int);
    public java.lang.String concat(java.lang.String);
    public java.lang.String replaceAll(java.lang.String,java.lang.String);
    public java.lang.String replace(char,char);
    public java.lang.String replaceFirst(java.lang.String,java.lang.String);
    public java.lang.String[] split(java.lang.String);
    public java.lang.String[] split(java.lang.String,int);
    public java.lang.String substring(int);
    public java.lang.String substring(int,int);
    public java.lang.String toLowerCase();
    public java.lang.String toLowerCase(java.util.Locale);
    public java.lang.String toString();
    public java.lang.String toUpperCase();
    public java.lang.String toUpperCase(java.util.Locale);
    public java.lang.String trim();
}

# Remove - StringBuffer method calls. Remove all invocations of StringBuffer
# methods without side effects whose return values are not used.
-assumenosideeffects public class java.lang.StringBuffer {
    public java.lang.String toString();
    public char charAt(int);
    public int capacity();
    public int codePointAt(int);
    public int codePointBefore(int);
    public int indexOf(java.lang.String,int);
    public int lastIndexOf(java.lang.String);
    public int lastIndexOf(java.lang.String,int);
    public int length();
    public java.lang.String substring(int);
    public java.lang.String substring(int,int);
}

# Remove - StringBuilder method calls. Remove all invocations of StringBuilder
# methods without side effects whose return values are not used.
-assumenosideeffects public class java.lang.StringBuilder {
    public java.lang.String toString();
    public char charAt(int);
    public int capacity();
    public int codePointAt(int);
    public int codePointBefore(int);
    public int indexOf(java.lang.String,int);
    public int lastIndexOf(java.lang.String);
    public int lastIndexOf(java.lang.String,int);
    public int length();
    public java.lang.String substring(int);
    public java.lang.String substring(int,int);
}

Answer 1

我终于在 7 个多小时后让它工作了。我会 post 我在这里所做的，部分是为了我自己的未来参考，部分是为了让其他人免于头痛和浪费一天。

我使用了命令行工具而不是 GUI。我不知道为什么会有所不同，但确实如此。
我将以下内容用于我的配置文件（另存为 config.pro）：
```
-injars ".\classes"(!META-INF/MANIFEST.MF)
-injars "C:\Users\Brendon\.ivy2\cache\org.scala-lang\scala-library\jars\scala-library-2.11.5.jar"(!META-INF/MANIFEST.MF)
-libraryjars "C:\Program Files\Java\jre1.8.0_31\lib\rt.jar"
-outjars "C:\Users\Brendon\Desktop\shrunkScalaLibrary.jar"
-dontnote
-dontwarn
-ignorewarnings
-dontobfuscate
-keep public class stayAway.MainFrame {
    public static void main(java.lang.String[]);
}
```
- 将前 2 injars 更改为 class 文件的父文件夹（在包文件夹上方），以及 scala 库 jar 的位置
  - 我不知道括号中的 "manifest" 部分是做什么用的。其中大部分是从 sbt 生成的 .pro 文件复制的，该文件后来失败了，因为它不喜欢我的 java 版本（不支持 class 版本号 [52.0]）
  - 如果我弄清楚它的用途，并且有必要，我会编辑它。
- outjar只是输出位置
- 警告抑制器允许它输出，即使它被捕获到不是 "fatal"
- 我使用了-dontobfuscate所以我可以查看生成的罐子。这不是必需的，而且似乎让你输出的 jar 更大 (~4x)
- 我不知道最后一部分是什么；它是生成的。我猜是为了让你的文件不受影响，但我的项目是一个小程序，所以它没有主。
我将 config.pro 和我的 class 文件夹复制到 proguard lib 文件夹中（又快又脏）。 class 文件夹应该在您的包文件夹之上。就我而言，这看起来像：
```
- classes
    - stayAway
        - (All my classes)
```
使用 shift + F10 我打开命令提示符到当前位置 (proguard/lib)

I 运行命令java -jar proguard.jar @config.pro，输出：

ProGuard, version 5.2
Reading program directory  [C:\Users\Brendon\Desktop\proguard\lib\classes] (filtered)
Reading program jar [C:\Users\Brendon\.ivy2\cache\org.scala-lang\scala-library\jars\scala-library-2.11.5.jar] (filtered)

Reading library jar [C:\Program Files\Java\jre1.8.0_31\lib\rt.jar]
Preparing output jar [C:\Users\Brendon\Desktop\shrunkScalaLibrary.jar]
  Copying resources from program directory [C:\Users\Brendon\Desktop\proguard\lib\classes] (filtered)
  Copying resources from program jar [C:\Users\Brendon\.ivy2\cache\org.scala-lang\scala-library\jars\scala-library-2.11.
5.jar] (filtered)

盈利！

如果你有困难，我可能会暂时记得我做了什么。

祝你好运

编辑：

删除括号中的"manifest" 部分会使生成的jar 变大2kb，但它仍然有效。不知道有什么用
删除 -keep 部分会产生错误。我想这定义了程序的入口点，因此它知道要保留什么。就像我说的，我正在制作一个没有 main; 的小程序。所以我不知道这里到底发生了什么。

ProGuard：当试图缩小库时，它只会返回我的项目文件

ProGuard: When trying to shrink a library, it just gives me back my project files

scala

proguard