#!/usr/bin/make -f

# Upstream ant project file build.xml hardcodes classpaths unsatisfiable
# under Debian. Then I patch build.xml to extract, re-arrange and re-inject
# them.
# Also I add the run-time classpath into the jar's manifest so that jh_depends
# could work effectively and it doesn't need to be hardcoded into the launcher
# script.

# Extract upstream main.classpath
THEIR_MAIN_CLASSPATH := $(shell \
  ant -nouserlib -quiet get-their-main-classpath | \
  head -1 | \
  sed 's/^ *\[echo\] *//' \
)

# Extract upstream test.classpath
THEIR_TEST_CLASSPATH := $(shell \
  ant -nouserlib -quiet get-their-test-classpath | \
  head -1 | \
  sed 's/^ *\[echo\] *//' \
)

# Macro to re-arrange classpath to match Debian's
their_to_our = $(shell \
  echo '$(1)' | \
  sed 's/:/\n/g' | \
  sed '\&^$(CURDIR)/\(extlibs\|build\)&!d' | \
  sed 's:$(CURDIR)/extlibs:/usr/share/java:' | \
  sed -r 's/jline-.*\.jar/jline2.jar/' | \
  sed -r 's/junit-.*\.jar/junit4.jar/' | \
  sed -r 's/(netty-.*)-.*\.jar/\1.jar/' | \
  sed -r 's/(servlet-api)-.*\.jar/\1-3.1.jar/' | \
  sed -r 's/(mysql-connector-java)-.*\.jar/mariadb-java-client.jar/' | \
  sed -r 's/(postgresql)-.*\.jar/\1.jar/' | \
  sed -r 's/(guava)-.*.jar/\1.jar/' | \
  sed -r '/netty|servlet-api/!s/(java\/.*)-[0-9\._]*\.jar/\1.jar/' | \
  sed -r 's/antlr(-.*)?\.jar/antlr3\1-3.2.jar/' | \
  sed -r '/java-sizeof/d' | \
  xargs echo | \
  sed 's/ /:/g' \
)
 
# Fix main.classpath and test.classpath
OUR_MAIN_CLASSPATH := $(call their_to_our,$(THEIR_MAIN_CLASSPATH))
OUR_TEST_CLASSPATH := $(call their_to_our,$(THEIR_TEST_CLASSPATH))

# Runtime classpath uses space as separator instead of ':'
OUR_RUNTIME_CLASSPATH := $(shell echo '$(OUR_MAIN_CLASSPATH)' | sed 's/:/ /g')

# Print and check classpaths to help finding missing dependencies
print_classpath = ls -1 $(foreach path,$(shell echo '$(1)' | sed 's/:/\n/g' | grep -v '$(CURDIR)/build/'),'$(path)')
check_classpath:
	@echo THEIR_MAIN
	@$(call print_classpath,$(THEIR_MAIN_CLASSPATH)) || true
	@echo OUR_MAIN
	@$(call print_classpath,$(OUR_MAIN_CLASSPATH))
	@echo THEIR_TEST
	@$(call print_classpath,$(THEIR_TEST_CLASSPATH)) || true
	@echo OUR_TEST
	@$(call print_classpath,$(OUR_TEST_CLASSPATH))


%:
	dh $@ --with python2 --with javahelper --with jh-maven-repo-helper

override_dh_auto_configure: check_classpath
	dh_auto_configure

override_dh_auto_build:
	# Reproducible builds - These files' mtime are stored into the
	# generated $py.class files
	touch -d @$(SOURCE_DATE_EPOCH) Lib/*.py lib-python/*/*.py
	# Build the class files.
	# -nouserlib is required to prevent conflicts with the ant jython plugin
	ant -nouserlib developer-build jar javadoc \
	  -Djython.java.version=7 \
	  -Dmain.classpath=$(OUR_MAIN_CLASSPATH) \
	  -Dtest.classpath=$(OUR_TEST_CLASSPATH) \
	  -Druntime.classpath="$(OUR_RUNTIME_CLASSPATH)"

	# Generate OSGi metadata for jython.jar
	bnd wrap --properties debian/jython.bnd --output dist/jython.jar dist/jython-dev.jar

	# Do not install the tests
	rm -rf dist/Lib/test

override_dh_auto_clean:
	dh_auto_clean
	rm -rf extlibs

override_jh_installlibs:
	jh_installlibs --version-strip="[+].*"

# libmariadb-java and libpostgresql-jdbc-java are part of Suggests
override_jh_depends:
	jh_depends -Xlibmariadb-java -Xlibpostgresql-jdbc-java

override_dh_python2:
	# Make all modules with a shebang line executable
	for library in `find debian/jython/usr/share/jython/Lib -name "*.py"` ; do \
	  if head -1 $$library | grep --quiet "^#\!" ; then \
	    chmod +x $$library; \
	  fi; \
	done

	dh_python2
	rm debian/jython.postinst.debhelper
	rm debian/jython.prerm.debhelper

override_dh_installchangelogs:
	dh_installchangelogs -- NEWS