update: makefile

27-functional-programming/log-parser-exp/Makefile

@@ -1,9 +1,6 @@
 SHELL := /bin/bash
-LINES = echo -e ">> log.txt has $$(wc -l log.txt | cut -f1 -d' ') lines"
-
-ifeq ($(n),)
-	n := 18
-endif
+LINES = $$(wc -l log.txt | cut -f1 -d' ')
+ECHO_LINES = echo -e ">> log.txt has $(LINES) lines"
 
 s: 
 	time go run . < log.txt
@@ -11,15 +8,22 @@ s:
 r: 
 	go run . < log.txt
 
-# make n=18
+n ?= 18
 load: restore
 	@echo "enlarging the file with itself, please wait..."	
-	@for i in {1..$(n)}; do awk 1 log.txt log.txt > log_.txt; mv log_.txt log.txt; rm -f log_.txt; done
-	@$(LINES)
+
+	@for i in {1..$(n)}; do \
+		awk 1 log.txt log.txt > log_.txt; \
+		mv log_.txt log.txt; \
+		rm -f log_.txt; \
+	done
+	
+	@$(ECHO_LINES)
 
 restore:
-	@$(LINES)
-	git checkout log.txt
+	@echo "restoring the file..."
+	@git checkout log.txt
+	@$(ECHO_LINES)
 
 lines:
-	@$(LINES)
+	@$(ECHO_LINES)

27-functional-programming/log-parser-exp/main.go

@@ -41,6 +41,14 @@ Result    -> report.Line
 
 notUsing = report.Not
 
+pl := newPipeline(pipeOpts{
+  from:     fastTextReader(os.Stdin),
+  filterBy: notUsing(domainExtFilter("com", "io")),
+  groupBy:  domainGrouper,
+})
+
+err := pl.start()
+
 _, err := report.New().
 	From(report.TextReader(os.Stdin)).
 	To(report.TextWriter(os.Stdout)).