feat(nsis): Create installer for Windows

Use nsis to create an installer for Windows user. It installs the binary
for the user (for now) and set the Path to access katenary binary from
cmd or Powershell.

.gitignore

@@ -18,3 +18,7 @@ cover*
 
 # will be treated later
 /examples/*
+
+# nsis
+nsis/*.dll
+nsis/*.exe

Makefile

@@ -36,7 +36,7 @@ SHELL := bash
 .DELETE_ON_ERROR:
 MAKEFLAGS += --warn-undefined-variables
 MAKEFLAGS += --no-builtin-rules
-.PHONY: help clean build install tests test doc
+.PHONY: help clean build install tests test doc nsis
 
 all: build
 
@@ -141,6 +141,19 @@ dist/katenary-freebsd-arm64:
 	@echo -e "\033[1;32mBuilding katenary $(VERSION) for freebsd-arm64...\033[0m"
 	$(MAKE) katenary GOOS=freebsd GOARCH=arm64 OUT=$@
 
+
+nsis/EnVar.dll:
+	curl https://nsis.sourceforge.io/mediawiki/images/7/7f/EnVar_plugin.zip -o nsis/EnVar_plugin.zip
+	cd nsis
+	unzip -o EnVar_plugin.zip Plugins/x86-unicode/EnVar.dll
+	mv Plugins/x86-unicode/EnVar.dll EnVar.dll
+	rm -rf EnVar_plugin.zip Plugins
+
+nsis: nsis/EnVar.dll dist/katenary.exe
+	@echo -e "\033[1;32mBuilding katenary $(VERSION) for windows with NSIS...\033[0m"
+	cd nsis && makensis -DAPP_VERSION=$(VERSION) katenary.nsi
+	
+
 gpg-sign:
 	rm -f dist/*.asc
 	$(MAKE) $(ASC_BINARIES)

nsis/katenary.nsi

@@ -0,0 +1,47 @@
+!define APP_NAME "Katenary"
+!define COMPANY_NAME "Katenary"
+
+OutFile "katenary_installer.exe"
+InstallDir "$LOCALAPPDATA\Katenary"
+RequestExecutionLevel user
+
+!include "MUI2.nsh"
+!addplugindir "."
+
+!insertmacro MUI_PAGE_WELCOME
+!insertmacro MUI_PAGE_DIRECTORY
+!insertmacro MUI_PAGE_INSTFILES
+!insertmacro MUI_PAGE_FINISH
+
+!insertmacro MUI_UNPAGE_CONFIRM
+!insertmacro MUI_UNPAGE_INSTFILES
+
+!insertmacro MUI_LANGUAGE "English"
+!insertmacro MUI_LANGUAGE "French"
+
+Name "${APP_NAME} ${APP_VERSION}"
+
+Section "Install"
+  SetOutPath "$INSTDIR"
+  File "..\dist\katenary.exe"
+  WriteUninstaller "$INSTDIR\uninstall.exe"
+
+  ; Manipulation PATH utilisateur
+  EnVar::SetHKCU
+  Pop $0
+
+  EnVar::AddValue "Path" "$INSTDIR"
+  Pop $0 ; 0 = succès
+
+SectionEnd
+
+Section "Uninstall"
+  EnVar::SetHKCU
+  Pop $0
+
+  EnVar::DeleteValue "Path" "$INSTDIR"
+  Pop $0
+
+  Delete "$INSTDIR\katenary.exe"
+  Delete "$INSTDIR\uninstall.exe"
+SectionEnd