From 3ba7b5cf2dc98ebe22291928b38a1e79b79f52e0 Mon Sep 17 00:00:00 2001
From: Junegunn Choi <junegunn.c@gmail.com>
Date: Wed, 28 Oct 2020 18:33:22 +0900
Subject: Make Makefile fail when git information is not available

---
 Makefile | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index 4308d373..f67bd81e 100644
--- a/Makefile
+++ b/Makefile
@@ -5,10 +5,25 @@ MAKEFILE       := $(realpath $(lastword $(MAKEFILE_LIST)))
 ROOT_DIR       := $(shell dirname $(MAKEFILE))
 SOURCES        := $(wildcard *.go src/*.go src/*/*.go) $(MAKEFILE)
 
-VERSION        := $(shell git describe --abbrev=0)
+ifdef FZF_VERSION
+VERSION        := $(FZF_VERSION)
+else
+VERSION        := $(shell git describe --abbrev=0 2> /dev/null)
+endif
+ifeq ($(VERSION),)
+$(error Not on git repository; cannot determine $$FZF_VERSION)
+endif
 VERSION_TRIM   := $(shell sed "s/-.*//" <<< $(VERSION))
 VERSION_REGEX  := $(subst .,\.,$(VERSION_TRIM))
-REVISION       := $(shell git log -n 1 --pretty=format:%h -- $(SOURCES))
+
+ifdef FZF_REVISION
+REVISION       := $(FZF_REVISION)
+else
+REVISION       := $(shell git log -n 1 --pretty=format:%h -- $(SOURCES) 2> /dev/null)
+endif
+ifeq ($(REVISION),)
+$(error Not on git repository; cannot determine $$FZF_REVISION)
+endif
 BUILD_FLAGS    := -a -ldflags "-X main.version=$(VERSION) -X main.revision=$(REVISION) -w '-extldflags=$(LDFLAGS)'" -tags "$(TAGS)"
 
 BINARY64       := fzf-$(GOOS)_amd64
-- 
cgit v1.2.3