removed idea of repos

1 files changed, 425 insertions, 0 deletions

diff --git a/repo/gcc/0016-dlang-update-zlib-binding.patch b/repo/gcc/0016-dlang-update-zlib-binding.patch
new file mode 100644
index 0000000..8a99d5c
--- /dev/null
+++ b/repo/gcc/0016-dlang-update-zlib-binding.patch
@@ -0,0 +1,425 @@
+From b2e1bf216169f470ced86f1f3e95c89debf606cd Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:57:51 +0000
+Subject: [PATCH] dlang: update zlib binding
+
+---
+ libphobos/src/std/zlib.d | 266 ++++++++++++++++++++++++++++-----------
+ 1 file changed, 196 insertions(+), 70 deletions(-)
+
+diff --git a/libphobos/src/std/zlib.d b/libphobos/src/std/zlib.d
+index e6cce240fd5..bd2fe37ebec 100644
+--- a/libphobos/src/std/zlib.d
++++ b/libphobos/src/std/zlib.d
+@@ -1,7 +1,7 @@
+ // Written in the D programming language.
+ 
+ /**
+- * Compress/decompress data using the $(HTTP www._zlib.net, _zlib library).
++ * Compress/decompress data using the $(HTTP www.zlib.net, zlib library).
+  *
+  * Examples:
+  *
+@@ -43,12 +43,12 @@
+  * References:
+  *  $(HTTP en.wikipedia.org/wiki/Zlib, Wikipedia)
+  *
+- * Copyright: Copyright Digital Mars 2000 - 2011.
++ * Copyright: Copyright The D Language Foundation 2000 - 2011.
+  * License:   $(HTTP www.boost.org/LICENSE_1_0.txt, Boost License 1.0).
+  * Authors:   $(HTTP digitalmars.com, Walter Bright)
+- * Source:    $(PHOBOSSRC std/_zlib.d)
++ * Source:    $(PHOBOSSRC std/zlib.d)
+  */
+-/*          Copyright Digital Mars 2000 - 2011.
++/*          Copyright The D Language Foundation 2000 - 2011.
+  * Distributed under the Boost Software License, Version 1.0.
+  *    (See accompanying file LICENSE_1_0.txt or copy at
+  *          http://www.boost.org/LICENSE_1_0.txt)
+@@ -75,9 +75,9 @@ enum
+ 
+ class ZlibException : Exception
+ {
+-    this(int errnum)
+-    {   string msg;
+-
++    private static string getmsg(int errnum) nothrow @nogc pure @safe
++    {
++        string msg;
+         switch (errnum)
+         {
+             case Z_STREAM_END:      msg = "stream end"; break;
+@@ -90,7 +90,12 @@ class ZlibException : Exception
+             case Z_VERSION_ERROR:   msg = "version error"; break;
+             default:                msg = "unknown error";  break;
+         }
+-        super(msg);
++        return msg;
++    }
++
++    this(int errnum)
++    {
++        super(getmsg(errnum));
+     }
+ }
+ 
+@@ -104,7 +109,7 @@ class ZlibException : Exception
+  *     buf = buffer containing input data
+  *
+  * Returns:
+- *     A $(D uint) checksum for the provided input data and starting checksum
++ *     A `uint` checksum for the provided input data and starting checksum
+  *
+  * See_Also:
+  *     $(LINK http://en.wikipedia.org/wiki/Adler-32)
+@@ -147,7 +152,7 @@ uint adler32(uint adler, const(void)[] buf)
+  *     buf = buffer containing input data
+  *
+  * Returns:
+- *     A $(D uint) checksum for the provided input data and starting checksum
++ *     A `uint` checksum for the provided input data and starting checksum
+  *
+  * See_Also:
+  *     $(LINK http://en.wikipedia.org/wiki/Cyclic_redundancy_check)
+@@ -191,13 +196,14 @@ uint crc32(uint crc, const(void)[] buf)
+ ubyte[] compress(const(void)[] srcbuf, int level)
+ in
+ {
+-    assert(-1 <= level && level <= 9);
++    assert(-1 <= level && level <= 9, "Compression level needs to be within [-1, 9].");
+ }
+-body
++do
+ {
+     import core.memory : GC;
++    import std.array : uninitializedArray;
+     auto destlen = srcbuf.length + ((srcbuf.length + 1023) / 1024) + 12;
+-    auto destbuf = new ubyte[destlen];
++    auto destbuf = uninitializedArray!(ubyte[])(destlen);
+     auto err = etc.c.zlib.compress2(destbuf.ptr, &destlen, cast(ubyte *) srcbuf.ptr, srcbuf.length, level);
+     if (err)
+     {
+@@ -276,7 +282,7 @@ void[] uncompress(const(void)[] srcbuf, size_t destlen = 0u, int winbits = 15)
+                 throw new ZlibException(err);
+         }
+     }
+-    assert(0);
++    assert(0, "Unreachable code");
+ }
+ 
+ @system unittest
+@@ -370,9 +376,9 @@ class Compress
+     this(int level, HeaderFormat header = HeaderFormat.deflate)
+     in
+     {
+-        assert(1 <= level && level <= 9);
++        assert(1 <= level && level <= 9, "Legal compression level are in [1, 9].");
+     }
+-    body
++    do
+     {
+         this.level = level;
+         this.gzip = header == HeaderFormat.gzip;
+@@ -406,6 +412,7 @@ class Compress
+     const(void)[] compress(const(void)[] buf)
+     {
+         import core.memory : GC;
++        import std.array : uninitializedArray;
+         int err;
+         ubyte[] destbuf;
+ 
+@@ -420,7 +427,7 @@ class Compress
+             inited = 1;
+         }
+ 
+-        destbuf = new ubyte[zs.avail_in + buf.length];
++        destbuf = uninitializedArray!(ubyte[])(zs.avail_in + buf.length);
+         zs.next_out = destbuf.ptr;
+         zs.avail_out = to!uint(destbuf.length);
+ 
+@@ -461,9 +468,10 @@ class Compress
+     void[] flush(int mode = Z_FINISH)
+     in
+     {
+-        assert(mode == Z_FINISH || mode == Z_SYNC_FLUSH || mode == Z_FULL_FLUSH);
++        assert(mode == Z_FINISH || mode == Z_SYNC_FLUSH || mode == Z_FULL_FLUSH,
++                "Mode must be either Z_FINISH, Z_SYNC_FLUSH or Z_FULL_FLUSH.");
+     }
+-    body
++    do
+     {
+         import core.memory : GC;
+         ubyte[] destbuf;
+@@ -523,6 +531,7 @@ class UnCompress
+     z_stream zs;
+     int inited;
+     int done;
++    bool inputEnded;
+     size_t destbufsize;
+ 
+     HeaderFormat format;
+@@ -571,16 +580,16 @@ class UnCompress
+     const(void)[] uncompress(const(void)[] buf)
+     in
+     {
+-        assert(!done);
++        assert(!done, "Buffer has been flushed.");
+     }
+-    body
++    do
+     {
++        if (inputEnded || !buf.length)
++            return null;
++
+         import core.memory : GC;
++        import std.array : uninitializedArray;
+         int err;
+-        ubyte[] destbuf;
+-
+-        if (buf.length == 0)
+-            return null;
+ 
+         if (!inited)
+         {
+@@ -598,26 +607,152 @@ class UnCompress
+ 
+         if (!destbufsize)
+             destbufsize = to!uint(buf.length) * 2;
+-        destbuf = new ubyte[zs.avail_in * 2 + destbufsize];
+-        zs.next_out = destbuf.ptr;
+-        zs.avail_out = to!uint(destbuf.length);
+-
+-        if (zs.avail_in)
+-            buf = zs.next_in[0 .. zs.avail_in] ~ cast(ubyte[]) buf;
++        auto destbuf = uninitializedArray!(ubyte[])(destbufsize);
++        size_t destFill;
+ 
+         zs.next_in = cast(ubyte*) buf.ptr;
+         zs.avail_in = to!uint(buf.length);
+ 
+-        err = inflate(&zs, Z_NO_FLUSH);
+-        if (err != Z_STREAM_END && err != Z_OK)
++        while (true)
+         {
+-            GC.free(destbuf.ptr);
+-            error(err);
++            auto oldAvailIn = zs.avail_in;
++
++            zs.next_out = destbuf[destFill .. $].ptr;
++            zs.avail_out = to!uint(destbuf.length - destFill);
++
++            err = inflate(&zs, Z_NO_FLUSH);
++            if (err == Z_STREAM_END)
++            {
++                inputEnded = true;
++                break;
++            }
++            else if (err != Z_OK)
++            {
++                GC.free(destbuf.ptr);
++                error(err);
++            }
++            else if (!zs.avail_in)
++                break;
++
++            /*
++                According to the zlib manual inflate() stops when either there's
++                no more data to uncompress or the output buffer is full
++                So at this point, the output buffer is too full
++            */
++
++            destFill = destbuf.length;
++
++            if (destbuf.capacity)
++            {
++                if (destbuf.length < destbuf.capacity)
++                    destbuf.length = destbuf.capacity;
++                else
++                {
++                    auto newLength = GC.extend(destbuf.ptr, destbufsize, destbufsize);
++
++                    if (newLength && destbuf.length < destbuf.capacity)
++                        destbuf.length = destbuf.capacity;
++                    else
++                        destbuf.length += destbufsize;
++                }
++            }
++            else
++                destbuf.length += destbufsize;
+         }
++
+         destbuf.length = destbuf.length - zs.avail_out;
+         return destbuf;
+     }
+ 
++    // Test for issues 3191 and 9505
++    @system unittest
++    {
++        import std.algorithm.comparison;
++        import std.array;
++        import std.file;
++        import std.zlib;
++
++        // Data that can be easily compressed
++        ubyte[1024] originalData;
++
++        // This should yield a compression ratio of at least 1/2
++        auto compressedData = compress(originalData, 9);
++        assert(compressedData.length < originalData.length / 2,
++                "The compression ratio is too low to accurately test this situation");
++
++        auto chunkSize = compressedData.length / 4;
++        assert(chunkSize < compressedData.length,
++                "The length of the compressed data is too small to accurately test this situation");
++
++        auto decompressor = new UnCompress();
++        ubyte[originalData.length] uncompressedData;
++        ubyte[] reusedBuf;
++        int progress;
++
++        reusedBuf.length = chunkSize;
++
++        for (int i = 0; i < compressedData.length; i += chunkSize)
++        {
++            auto len = min(chunkSize, compressedData.length - i);
++            // simulate reading from a stream in small chunks
++            reusedBuf[0 .. len] = compressedData[i .. i + len];
++
++            // decompress using same input buffer
++            auto chunk = decompressor.uncompress(reusedBuf);
++            assert(progress + chunk.length <= originalData.length,
++                    "The uncompressed result is bigger than the original data");
++
++            uncompressedData[progress .. progress + chunk.length] = cast(const ubyte[]) chunk[];
++            progress += chunk.length;
++        }
++
++        auto chunk = decompressor.flush();
++        assert(progress + chunk.length <= originalData.length,
++                "The uncompressed result is bigger than the original data");
++
++        uncompressedData[progress .. progress + chunk.length] = cast(const ubyte[]) chunk[];
++        progress += chunk.length;
++
++        assert(progress == originalData.length,
++                "The uncompressed and the original data sizes differ");
++        assert(originalData[] == uncompressedData[],
++                "The uncompressed and the original data differ");
++    }
++
++    @system unittest
++    {
++        ubyte[1024] invalidData;
++        auto decompressor = new UnCompress();
++
++        try
++        {
++            auto uncompressedData = decompressor.uncompress(invalidData);
++        }
++        catch (ZlibException e)
++        {
++            assert(e.msg == "data error");
++            return;
++        }
++
++        assert(false, "Corrupted data didn't result in an error");
++    }
++
++    @system unittest
++    {
++        ubyte[2014] originalData = void;
++        auto compressedData = compress(originalData, 9);
++
++        auto decompressor = new UnCompress();
++        auto uncompressedData = decompressor.uncompress(compressedData ~ cast(ubyte[]) "whatever");
++
++        assert(originalData.length == uncompressedData.length,
++                "The uncompressed and the original data sizes differ");
++        assert(originalData[] == uncompressedData[],
++                "The uncompressed and the original data differ");
++        assert(!decompressor.uncompress("whatever").length,
++                "Compression continued after the end");
++    }
++
+     /**
+      * Decompress and return any remaining data.
+      * The returned data should be appended to that returned by uncompress().
+@@ -626,49 +761,40 @@ class UnCompress
+     void[] flush()
+     in
+     {
+-        assert(!done);
++        assert(!done, "Buffer has been flushed before.");
+     }
+     out
+     {
+-        assert(done);
++        assert(done, "Flushing failed.");
+     }
+-    body
++    do
+     {
+-        import core.memory : GC;
+-        ubyte[] extra;
+-        ubyte[] destbuf;
+-        int err;
+-
+         done = 1;
+-        if (!inited)
+-            return null;
++        return null;
++    }
+ 
+-      L1:
+-        destbuf = new ubyte[zs.avail_in * 2 + 100];
+-        zs.next_out = destbuf.ptr;
+-        zs.avail_out = to!uint(destbuf.length);
++    /// Returns true if all input data has been decompressed and no further data
++    /// can be decompressed (inflate() returned Z_STREAM_END)
++    @property bool empty() const
++    {
++        return inputEnded;
++    }
+ 
+-        err = etc.c.zlib.inflate(&zs, Z_NO_FLUSH);
+-        if (err == Z_OK && zs.avail_out == 0)
+-        {
+-            extra ~= destbuf;
+-            goto L1;
+-        }
+-        if (err != Z_STREAM_END)
+-        {
+-            GC.free(destbuf.ptr);
+-            if (err == Z_OK)
+-                err = Z_BUF_ERROR;
+-            error(err);
+-        }
+-        destbuf = destbuf.ptr[0 .. zs.next_out - destbuf.ptr];
+-        err = etc.c.zlib.inflateEnd(&zs);
+-        inited = 0;
+-        if (err)
+-            error(err);
+-        if (extra.length)
+-            destbuf = extra ~ destbuf;
+-        return destbuf;
++    ///
++    @system unittest
++    {
++        // some random data
++        ubyte[1024] originalData = void;
++
++        // append garbage data (or don't, this works in both cases)
++        auto compressedData = cast(ubyte[]) compress(originalData) ~ cast(ubyte[]) "whatever";
++
++        auto decompressor = new UnCompress();
++        auto uncompressedData = decompressor.uncompress(compressedData);
++
++        assert(uncompressedData[] == originalData[],
++                "The uncompressed and the original data differ");
++        assert(decompressor.empty, "The UnCompressor reports not being done");
+     }
+ }
+ 
+-- 
+2.31.1
+