init the awkward code

static/js/libarchive.js/lib/tools/build.sh

@@ -0,0 +1,11 @@
+emcc ../wrapper/main.c -I /usr/local/include/ -o ../build/main.o #-g4
+
+emcc ../build/main.o /usr/local/lib/libarchive.a /usr/local/lib/liblzma.a /usr/local/lib/libssl.a /usr/local/lib/libcrypto.a \
+    -o ../build/libarchive.js \
+    -s USE_ZLIB=1 -s USE_BZIP2=1 -s MODULARIZE=1 -s EXPORT_ES6=1 -s EXPORT_NAME=libarchive -s WASM=1 -O3 -s ALLOW_MEMORY_GROWTH=1 \
+    -s EXTRA_EXPORTED_RUNTIME_METHODS='["cwrap","allocate","intArrayFromString"]' -s EXPORTED_FUNCTIONS=@$PWD/lib.exports -s ERROR_ON_UNDEFINED_SYMBOLS=0
+
+cp ../build/libarchive.js ../../src/webworker/wasm-gen/
+cp ../build/libarchive.wasm ../../src/webworker/wasm-gen/
+
+echo Done

static/js/libarchive.js/lib/tools/docker/Dockerfile

@@ -0,0 +1,51 @@
+FROM trzeci/emscripten
+
+WORKDIR /opt
+
+ADD https://github.com/libarchive/libarchive/releases/download/v3.4.0/libarchive-3.4.0.zip /opt
+ADD https://github.com/madler/zlib/archive/v1.2.11.zip /opt
+ADD https://netix.dl.sourceforge.net/project/lzmautils/xz-5.2.4.tar.gz /opt
+ADD https://netix.dl.sourceforge.net/project/bzip2/bzip2-1.0.6.tar.gz /opt
+ADD https://www.openssl.org/source/openssl-1.0.2s.tar.gz /opt
+
+RUN unzip /opt/libarchive-3.4.0.zip && rm /opt/libarchive-3.4.0.zip && \
+    unzip /opt/v1.2.11.zip && rm /opt/v1.2.11.zip && \
+    tar xf /opt/xz-5.2.4.tar.gz && rm /opt/xz-5.2.4.tar.gz && \
+    tar xf /opt/bzip2-1.0.6.tar.gz && rm /opt/bzip2-1.0.6.tar.gz && \
+    tar xf /opt/openssl-1.0.2s.tar.gz && rm /opt/openssl-1.0.2s.tar.gz
+
+RUN apt-get update && \
+    apt-get install -y locate vim file
+
+ENV CPPFLAGS "-I/usr/local/include/ -I/opt/zlib-1.2.11 -I/opt/bzip2-1.0.6 -I/opt/openssl-1.0.2s/include -I/opt/openssl-1.0.2s/test"
+ENV LDLIBS "-lz -lssl -lcrypto"
+ENV LDFLAGS "-L/usr/local/lib"
+
+# compile openSSL to LLVM
+WORKDIR /opt/openssl-1.0.2s
+RUN cd /opt/openssl-1.0.2s && emmake bash -c "./Configure -no-asm -no-apps no-ssl2 no-ssl3 no-hw no-deprecated shared no-dso linux-generic32" && \
+    sed -i 's/CC= $(CROSS_COMPILE)\/emsdk_portable\/sdk\/emcc/CC= $(CROSS_COMPILE)cc/' Makefile && \
+    emmake make && \
+    cd /usr/local/lib && \
+    ln -s /opt/openssl-1.0.2s/libssl.a && \
+    ln -s /opt/openssl-1.0.2s/libcrypto.a
+
+# compile LZMA to LLVM
+WORKDIR /opt/xz-5.2.4
+RUN cd /opt/xz-5.2.4 && emconfigure ./configure --disable-assembler --enable-threads=no --enable-static=yes 2>&1 | tee conf.out && \
+    emmake make 2>&1 | tee make.out && emmake make install
+
+# compile libarchive to LLVM
+WORKDIR /opt/libarchive-3.4.0
+RUN cd /opt/libarchive-3.4.0 && emconfigure ./configure --enable-static --disable-shared --enable-bsdtar=static --enable-bsdcat=static \
+    --enable-bsdcpio=static --enable-posix-regex-lib=libc \
+    --disable-xattr --disable-acl --without-nettle --without-lzo2 \
+    --without-cng  --without-lz4 \
+    --without-xml2 --without-expat 2>&1 | tee conf.out && \
+    emmake make 2>&1 | tee make.out && emmake make install
+
+#--without-openssl
+#--without-bz2lib --without-iconv --without-libiconv-prefix --without-lzma 
+
+WORKDIR /var/local/lib/tools
+CMD ["bash","/var/local/lib/tools/build.sh"]

static/js/libarchive.js/lib/tools/lib.exports

@@ -0,0 +1,18 @@
+[
+    "_get_version", 
+    "_archive_open", 
+    "_get_next_entry", 
+    "_get_filedata", 
+    "_archive_close", 
+    "_archive_entry_filetype", 
+    "_archive_entry_pathname", 
+    "_archive_entry_pathname_utf8", 
+    "_archive_entry_size", 
+    "_archive_read_data_skip", 
+    "_archive_error_string", 
+    "_archive_entry_is_encrypted", 
+    "_archive_read_has_encrypted_entries",
+    "_archive_read_add_passphrase",
+    "_free", 
+    "_malloc"
+]

static/js/libarchive.js/lib/tools/wasm_gen.sh

@@ -0,0 +1,2 @@
+if [ ! -f "./package.json" ]; then echo "you should run this from project root"; exit 1; fi
+docker run -it -v `pwd`:/var/local libarchive-llvm