Chapter 6: Peepholes for If

Co-authored-by: Dibyendu Majumdar <mobile@majumdar.org.uk>
Co-authored-by: Thalia Archibald <thalia@archibald.dev>
Co-authored-by: Yichen Yan <oraluben@outlook.com>
Co-authored-by: Hsiang-Ying Fu <66062782+fuhsnn@users.noreply.github.com>
Co-authored-by: Symious <14933944+symious@users.noreply.github.com>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
Co-authored-by: tannal <tannal2409@gmail.com>
Co-authored-by: hadha <helsgithub15@gmail.com>
Co-authored-by: Tamás Hadházy <85063808+Hels15@users.noreply.github.com>
Co-authored-by: Tamas Hadhazy <helsgithub15@gmail.com>
Co-authored-by: RobertObkircher <robert.obkircher@gmail.com>
Co-authored-by: Robert Obkircher <robert.obkircher@gmail.com>

1 files changed, 99 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 67307a26..8c2d5797 100644
--- a/Makefile
+++ b/Makefile
@@ -1 +1,99 @@
-include $(firstword $(wildcard ../build-support/early-chapter.mk build-support/early-chapter.mk))
+SHELL := /bin/bash
+# Shared packaging target; included after chapter source variables below.
+.DELETE_ON_ERROR:
+
+# for printing variable values
+# usage: make print-VARIABLE
+#        > VARIABLE = value_of_variable
+print-%  : ; @echo $* = $($*)
+
+# literal space
+space := $() $()
+
+# Decide OS-specific questions
+# jar-file seperator
+ifeq ($(OS),Windows_NT)
+	SEP = ;
+else
+	SEP = :
+endif
+# Find a reasonable ctags.
+CTAGS = $(shell which ctags)
+# Hack for MacOS: /usr/bin/ctags is unfriendly, so look for ctags from brew
+ifeq ($(UNAME),Darwin)
+	CTAGS = $(shell brew list ctags 2> /dev/null | grep bin/ctags)
+endif
+
+# Fun Args to javac.  Mostly limit to java8 source definitions, and fairly
+# aggressive lint warnings.
+JAVAC_ARGS = -g
+
+# Source code
+SIMPLE := com/seaofnodes/simple
+SRC := src/main/java
+TST := src/test/java
+CLZDIR:= build/classes
+main_javas   := $(wildcard $(SRC)/$(SIMPLE)/*java $(SRC)/$(SIMPLE)/*/*java)
+test_javas   := $(wildcard $(TST)/$(SIMPLE)/*java $(TST)/$(SIMPLE)/*/*java)
+main_classes := $(patsubst $(SRC)/%java,$(CLZDIR)/main/%class,$(main_javas))
+include $(firstword $(wildcard ../graph/graph.mk graph/graph.mk))
+test_classes := $(patsubst $(TST)/%java,$(CLZDIR)/test/%class,$(test_javas))
+test_cp      := $(patsubst $(TST)/$(SIMPLE)/%.java,com.seaofnodes.simple.%,$(test_javas))
+classes = $(main_classes) $(test_classes)
+# All the libraries
+libs = $(wildcard lib/*jar)
+jars = $(subst $(space),$(SEP),$(libs))
+
+
+default_targets := $(main_classes) $(test_classes)
+# Optionally add ctags to the default target if a reasonable one was found.
+ifneq ($(CTAGS),)
+default_targets += tags
+endif
+
+default: $(default_targets)
+
+# Compile just the out-of-date files
+$(main_classes): build/classes/main/%class: $(SRC)/%java $(graph_javas)
+	@echo "compiling " $@ " because " $?
+	@[ -d $(CLZDIR)/main ] || mkdir -p $(CLZDIR)/main
+	@javac $(JAVAC_ARGS) -cp "$(CLZDIR)/main$(SEP)$(jars)" -sourcepath $(SRC) -d $(CLZDIR)/main $(main_javas)
+
+$(test_classes): $(CLZDIR)/test/%class: $(TST)/%java $(main_classes)
+	@echo "compiling " $@ " because " $?
+	@[ -d $(CLZDIR)/test ] || mkdir -p $(CLZDIR)/test
+	@javac $(JAVAC_ARGS) -cp "$(CLZDIR)/test$(SEP)$(CLZDIR)/main$(SEP)$(jars)" -sourcepath $(TST) -d $(CLZDIR)/test $(test_javas)
+
+# Base launch line for JVM tests
+JVM=nice java -ea -cp "build/classes/main${SEP}${jars}${SEP}$(CLZDIR)/test"
+
+tests:	$(default_targets)
+	$(JVM) org.junit.runner.JUnitCore $(test_cp)
+
+.PHONY: clean
+clean:
+	rm -rf build
+	rm -f TAGS
+	(find . -name "*~" -exec rm {} \; 2>/dev/null; exit 0)
+
+# Download libs from maven
+lib:	lib/junit-4.12.jar  lib/hamcrest-core-1.3.jar
+
+# Jars
+lib/junit-4.12.jar:
+	@[ -d lib ] || mkdir -p lib
+	@(cd lib; wget https://repo1.maven.org/maven2/junit/junit/4.12/junit-4.12.jar)
+
+lib/hamcrest-core-1.3.jar:
+	@[ -d lib ] || mkdir -p lib
+	@(cd lib; wget https://repo1.maven.org/maven2/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar)
+
+# Build emacs tags (part of a tasty emacs ide experience)
+tags:	$(main_javas) $(test_javas)
+	@rm -f TAGS
+	@$(CTAGS) -e --recurse=yes --extra=+q --fields=+fksaiS $(SRC) $(TST)
+
+include $(firstword $(wildcard ../build-support/chapter-release.mk build-support/chapter-release.mk))
+
+.PHONY: build
+build: $(main_classes)