[Minios-devel] [UNIKRAFT/RUBY PATCH 14/16] Makefile.uk: Add rule for creating root filesystem

[Costin Lupu <costin.lupu@xxxxxxxxx>]

The Ruby interpreter needs a filesystem where to keep its libraries. This patch
creates a root filesystem and installs the Ruby libraries in `/lib/ruby/2.6.0/`
directory. For creating the filesystem the following command has to be run:

$ make ruby-rootfs path=<directory>

Signed-off-by: Costin Lupu <costin.lupu@xxxxxxxxx>
---
 Makefile.uk               | 28 ++++++++++++++++++++++++++++
 gems-examples/Gemfile-irb |  8 ++++++++
 2 files changed, 36 insertions(+)
 create mode 100644 gems-examples/Gemfile-irb

diff --git a/Makefile.uk b/Makefile.uk
index a7aeb9a..74d8378 100644
--- a/Makefile.uk
+++ b/Makefile.uk
@@ -600,3 +600,31 @@ ifeq ($(CONFIG_LIBRUBY_ENC),y)
 UK_PREPARE += $(LIBRUBY_BUILD)/.build
 endif
 
+################################################################################
+# Root filesystem
+################################################################################
+# Root filesystem path
+RUBY_ROOTFS = $(APP_BASE)/$(path)
+
+# Configure origin
+$(RUBY_ROOTFS)/.configured: $(LIBRUBY_BUILD)/.origin
+       mkdir -p $(RUBY_ROOTFS) &>/dev/null
+       cd $(LIBRUBY_SRC) && \
+               autoconf && \
+               ./configure --prefix=$(shell realpath $(APP_BASE)/$(path)) 
--with-static-linked-ext && \
+               touch $@ && touch $(LIBRUBY_BUILD)/.configured
+
+# Build Ruby
+$(RUBY_ROOTFS)/.build: $(RUBY_ROOTFS)/.configured
+       cd $(LIBRUBY_SRC) && make && touch $@ && touch $(LIBRUBY_BUILD)/.build
+
+# Install Ruby
+$(RUBY_ROOTFS)/.done: $(RUBY_ROOTFS)/.build
+       cd $(LIBRUBY_SRC) && make install
+       cp -r $(LIBRUBY_SRC)/.ext $(RUBY_ROOTFS)/lib/ruby/2.6.0/
+       cp -r $(LIBRUBY_SRC)/test $(RUBY_ROOTFS)/lib/ruby/2.6.0/
+       cp $(LIBRUBY_BASE)/gems-examples/Gemfile-irb 
$(RUBY_ROOTFS)/lib/ruby/2.6.0/Gemfile
+       touch $@
+
+.PHONY: ruby-rootfs
+ruby-rootfs: $(RUBY_ROOTFS)/.done
diff --git a/gems-examples/Gemfile-irb b/gems-examples/Gemfile-irb
new file mode 100644
index 0000000..1ac39d0
--- /dev/null
+++ b/gems-examples/Gemfile-irb
@@ -0,0 +1,8 @@
+# frozen_string_literal: true
+
+source "https://rubygems.org";
+
+git_source(:github) {|repo_name| "https://github.com/#{repo_name}"; }
+
+# gem "rails"
+gem 'irb', require: false
-- 
2.20.1


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