Merge pull request #4 from haensl/bug/3

Fix directory and symlink issue on OSX. Add option to overwrite exist…

Author: haensl

CHANGELOG.md

@@ -1,3 +1,7 @@
+## 1.1.2
+* [#3: Fix directory and symlink issue on OSX.](https://github.com/haensl/openssl-certgen/issues/3)
+* Add option to overwrite existing version.
+
 ## 1.1.1
 * [#1: Only link manpage in makefile if directory exists.](https://github.com/haensl/openssl-certgen/issues/1)
 * Change installation directories.

Makefile

@@ -1,8 +1,26 @@
 src_dir := $(shell pwd)
-bin_dir := /usr/bin
-man_dir := /usr/share/man/man1
+platform := $(shell uname -o)
 bin := openssl-generate-certificates
+man := $(bin).1.gz
+THIS_FILE := $(lastword $(MAKEFILE_LIST))
+ifeq ($(platform),Darwin)
+		bin_dir := /usr/local/bin
+		man_dir := /usr/local/share/man/man1
+else
+		bin_dir := /usr/bin
+		man_dir := /usr/share/man/man1
+endif
 
-install:
+check_installed:
+		@if [ -f $(bin_dir)/$(bin) ]; then echo "Another version of $(bin) is already installed. Execute 'make overwrite' to overwrite existing version." && exit 1 ; fi
+
+install: check_installed
 		@if ! [ -f $(bin_dir)/$(bin) ]; then ln -s $(src_dir)/$(bin) $(bin_dir)/$(bin) ; fi
-		@if [ -d $(man_dir) ]; && ! [ -f $(man_dir)/$(bin).1.gz ]; then ln -s $(src_dir)/man/$(bin).1.gz $(man_dir)/$(bin).1.gz ; fi
+		@if [ -d $(man_dir) ] && ! [ -f $(man_dir)/$(man) ]; then ln -s $(src_dir)/man/$(man) $(man_dir)/$(man) ; fi
+
+remove:
+		@if [ -f $(bin_dir)/$(bin) ]; then rm $(bin_dir)/$(bin) ; fi
+		@if [ -f $(man_dir)/$(man) ]; then rm $(man_dir)/$(man) ; fi
+
+overwrite: remove
+		@$(MAKE) -f $(THIS_FILE) install