add plan for libzip

this is a C library for reading, creating, and modifying zip archives
the plan is added because we need it to extend the php plan

Signed-off-by: David Hohengaßner <david@hohengassner.com>

.bldr.toml

@@ -732,6 +732,8 @@ plan_path = "libxtst"
 plan_path = "libyajl2"
 [libyaml]
 plan_path = "libyaml"
+[libzip]
+plan_path = "libzip"
 [linux]
 plan_path = "linux"
 [linux-headers]

libzip/README.md

@@ -0,0 +1,21 @@
+# php
+
+libzip is a C library for reading, creating, and modifying zip archives.
+
+## Maintainers
+
+* The Habitat Maintainers: <humans@habitat.sh>
+
+## Type of Package
+
+Binary package
+
+## Usage
+
+Place `core/libzip` into your `pkg_build_deps` to use it in your own plan.
+
+```
+pkg_deps=(
+  core/libzip
+)
+```

libzip/plan.sh

@@ -0,0 +1,56 @@
+pkg_name=libzip
+pkg_origin=core
+pkg_version=1.5.1
+pkg_maintainer="The Habitat Maintainers <humans@habitat.sh>"
+pkg_description="A C library for reading, creating, and modifying zip archives"
+pkg_upstream_url="https://libzip.org/"
+pkg_license=('BSD-3-Clause')
+pkg_source="${pkg_upstream_url}/download/${pkg_name}-${pkg_version}.tar.gz"
+pkg_shasum=47eaa45faa448c72bd6906e5a096846c469a185f293cafd8456abb165841b3f2
+pkg_deps=(
+  core/bzip2-musl
+  core/openssl
+  core/zlib
+)
+pkg_build_deps=(
+  core/bzip2-musl
+  core/cmake
+  core/gcc
+  core/gcc-libs
+  core/make
+  core/openssl
+  core/zlib
+)
+pkg_include_dirs=(include)
+pkg_lib_dirs=(lib)
+pkg_bin_dirs=(bin)
+
+do_setup_environment() {
+  set_buildtime_env BUILD_DIR "build"
+}
+
+do_prepare() {
+  mkdir -p "${BUILD_DIR}"
+}
+
+do_build() {
+  pushd "${BUILD_DIR}" > /dev/null
+
+  cmake \
+    -DCMAKE_INSTALL_PREFIX="${pkg_prefix}" \
+    -DCMAKE_INSTALL_LIBDIR="${pkg_prefix}/lib/" \
+    -DCMAKE_PREFIX_PATH="$(pkg_path_for zlib)" \
+    -DZLIB_INCLUDE_DIR="$(pkg_path_for zlib)/include" \
+    -DOPENSSL_INCLUDE_DIR="$(pkg_path_for openssl)/include" \
+    -DOPENSSL_ROOT_DIR="$(pkg_path_for openssl)" \
+    ..
+
+  make -j "$(nproc)"
+  popd > /dev/null
+}
+
+do_install() {
+  pushd "${BUILD_DIR}" > /dev/null
+  do_default_install
+  popd > /dev/null
+}