build

#!/bin/bash

# Work in current directory
cd $(dirname "$0")

# Variables
WORKSPACE="$(pwd)/workspace"
SRC="$(pwd)/PDFWriter3_6"
OUT="$(pwd)/out"
LIBS=(PDFWriter FreeType LibJpeg LibTiff ZLib)
TARGETS=(i386 x86_64 arm64 armv7 armv7s)

# Ye olde functionz
function makeWorkspace {
  rm -rf "$WORKSPACE"
  mkdir "$WORKSPACE" &&
  mkdir "$WORKSPACE/build" &&
  cp -r "$SRC/." "$WORKSPACE/"
}

function makeOut {
  rm -rf "$OUT" &&
  mkdir "$OUT" &&
  for LIB in "${LIBS[@]}"; do
    mkdir "$OUT/$LIB"
    for TARGET in "${TARGETS[@]}"; do
      mkdir "$OUT/$LIB/$TARGET"
    done
  done
  mkdir "$OUT/PDFWriter/include"
}

function harvestHeaders {
  find "$WORKSPACE/PDFWriter" -name \*.h -exec cp {} "$OUT/PDFWriter/include" \;
}

function buildXCodeProj {
  cd "$WORKSPACE/build" &&
  cmake -GXcode ..
}

# $1 == sdk (iphoneos || iphonesimulator), $2 == ARCHS
function buildStaticLib {
  PROJECT="$WORKSPACE/build/PDFHUMMUS.xcodeproj"
  # https://stackoverflow.com/a/20516805
  xcodebuild                         \
    -project "$PROJECT"              \
    -configuration 'Release'         \
    -sdk "$1"                        \
    clean build                      \
    ONLY_ACTIVE_ARCH=NO              \
    ARCHS="$2"                       \
    IPHONEOS_DEPLOYMENT_TARGET='9.3' \
    TARGET_BUILD_DIR='./build-arm'   \
    BUILT_PRODUCTS_DIR='./build-arm'
}

function harvestStaticLib {
  cd "$WORKSPACE/build-arm" &&
  cp ./libPDFWriter.a "$OUT/PDFWriter/$1"
  cp ./libFreeType.a  "$OUT/FreeType/$1"
  cp ./libLibJpeg.a   "$OUT/LibJpeg/$1"
  cp ./libLibTiff.a   "$OUT/LibTiff/$1"
  cp ./libZlib.a      "$OUT/ZLib/$1"
}

function buildAndHarvestStaticLibs {
  makeWorkspace &&
  buildXCodeProj
  for TARGET in "${TARGETS[@]}"; do
    SDK="iphoneos"
    if [[ "$TARGET" == i386 || "$TARGET" == x86_64 ]]; then
      SDK="iphonesimulator"
    fi
    buildStaticLib "$SDK" "$TARGET" &&
    harvestStaticLib "$TARGET"
  done
}

function buildUniversalLib {
  cd "$OUT" &&
  for LIB in "${LIBS[@]}"; do
    rm -rf "./$LIB/universal" &&
    mkdir "./$LIB/universal" &&
    if [[ "$LIB" == ZLib ]]; then
      # Have to make the second "L" lowercase...
      lipo -create                 \
        "./$LIB/arm64/libZlib.a"   \
        "./$LIB/armv7/libZlib.a"   \
        "./$LIB/armv7s/libZlib.a"  \
        "./$LIB/i386/libZlib.a"    \
        "./$LIB/x86_64/libZlib.a"  \
        -output "./$LIB/universal/libZlib.a"
    else
      lipo -create                 \
        "./$LIB/arm64/lib$LIB.a"   \
        "./$LIB/armv7/lib$LIB.a"   \
        "./$LIB/armv7s/lib$LIB.a"  \
        "./$LIB/i386/lib$LIB.a"    \
        "./$LIB/x86_64/lib$LIB.a"  \
        -output "./$LIB/universal/lib$LIB.a"
    fi
  done
}

# Executable section
makeOut &&
buildAndHarvestStaticLibs &&
buildUniversalLib &&
harvestHeaders

# makeWorkspace && buildXCodeProj && buildStaticLib && harvestStaticLib arm64