Add Linux build scripts

build.sh

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+#!/bin/sh
+set -e
+
+export TMPDIR="$PWD/tmp"
+mkdir -p "$TMPDIR"
+
+if [ "$1" = debug ]; then
+  out=out/Debug
+  flags='
+    is_debug=true
+    is_component_build=true
+    exclude_unwind_tables=false
+    remove_webcore_debug_symbols=false
+    use_thin_lto=false
+    use_lld=false'
+else
+  out=out/Release
+  flags='
+    is_debug=false
+    is_component_build=false
+    exclude_unwind_tables=true
+    remove_webcore_debug_symbols=true
+    use_thin_lto=true
+    use_lld=true'
+fi
+
+if [ -d /usr/lib/ccache ]; then
+  export PATH="/usr/lib/ccache:$PATH"
+  export CCACHE_SLOPPINESS=time_macros
+  export CCACHE_BASEDIR="$PWD"
+  export CCACHE_CPP2=yes
+  flags="$flags"'
+   cc_wrapper="ccache"'
+fi
+
+flags="$flags"'
+  is_clang=true
+  linux_use_bundled_binutils=false
+
+  fatal_linker_warnings=false
+  treat_warnings_as_errors=false
+  use_sysroot=false
+
+  fieldtrial_testing_like_official_build=true
+
+  use_ozone=true
+  ozone_auto_platforms=false
+  ozone_platform="headless"
+  ozone_platform_headless=true
+  is_desktop_linux=false
+
+  use_cups=false
+  use_dbus=false
+  use_gio=false
+  enable_extensions=false
+  use_platform_icu_alternatives=true
+
+  disable_file_support=true
+  enable_websockets=false
+  disable_ftp_support=true
+  use_kerberos=false
+  disable_brotli_filter=true
+  enable_mdns=false
+  enable_reporting=false
+  include_transport_security_state_preload_list=false
+'
+
+rm -rf "./$out"
+mkdir -p out
+
+if [ ! -f out/gn ]; then
+  rm -rf gn
+  git clone https://gn.googlesource.com/gn
+  cd gn
+  CC=gcc CXX=g++ python2 build/gen.py
+  CCACHE_CPP2= ninja -C out gn
+  cp out/gn ../out
+  cd ..
+fi
+
+./out/gn gen "$out" --args="$flags" --script-executable=/usr/bin/python2
+
+ninja -C "$out" naive_client

get-clang.sh

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+#!/bin/sh
+set -ex
+
+CLANG_REVISION=$(grep -m1 CLANG_REVISION tools/clang/scripts/update.py | cut -d"'" -f2)
+CLANG_SUB_REVISION=$(grep -m1 CLANG_SUB_REVISION tools/clang/scripts/update.py | cut -d= -f2)
+url="https://commondatastorage.googleapis.com/chromium-browser-clang/Linux_x64/clang-$CLANG_REVISION-$CLANG_SUB_REVISION.tgz"
+mkdir -p third_party/llvm-build/Release+Asserts
+cd third_party/llvm-build/Release+Asserts
+curl "$url" -o- | tar xzf -

make-test-certs.sh

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+#!/bin/sh
+set -e
+
+name='example'
+
+echo "
+[req]
+prompt = no
+distinguished_name = dn
+[dn]
+CN = $name
+[san]
+subjectAltName = DNS:$name" >site.cnf
+
+openssl genrsa -out ca.key 2048
+openssl req -x509 -new -nodes -key ca.key -days 365 -out ca.pem -subj '/CN=Test Root CA'
+
+openssl genrsa -out $name.key.rsa 2048
+openssl ecparam -genkey -name prime256v1 -out $name.key.ecdsa
+for key in rsa ecdsa; do
+  openssl req -new -nodes -key $name.key.$key -out $name.csr.$key -reqexts san -config site.cnf
+  openssl x509 -req -in $name.csr.$key -CA ca.pem -CAkey ca.key -CAcreateserial -out $name.pem.$key -days 365 -extensions san -extfile site.cnf
+  cat $name.key.$key >>$name.pem.$key
+  rm $name.key.$key $name.csr.$key
+done
+
+rm ca.key ca.srl site.cnf
+
+echo
+echo 'To trust the test CA:'
+echo '  certutil -d "sql:$HOME/.pki/nssdb" -A -t C,, -n 'Test Root CA' -i ca.pem'
+echo