More defensive makefile

Signed-off-by: apostasie <[email protected]>

Author: apostasie

Makefile

@@ -39,9 +39,9 @@ DOCDIR  ?= $(DATADIR)/doc
 
 BINARY ?= "nerdctl"
 MAKEFILE_DIR := $(patsubst %/,%,$(dir $(abspath $(lastword $(MAKEFILE_LIST)))))
-VERSION ?= $(shell git -C $(MAKEFILE_DIR) describe --match 'v[0-9]*' --dirty='.m' --always --tags)
+VERSION ?= $(shell git -C $(MAKEFILE_DIR) describe --match 'v[0-9]*' --dirty='.m' --always --tags 2>/dev/null || echo no_git_information)
 VERSION_TRIMMED := $(VERSION:v%=%)
-REVISION ?= $(shell git -C $(MAKEFILE_DIR) rev-parse HEAD)$(shell if ! git -C $(MAKEFILE_DIR) diff --no-ext-diff --quiet --exit-code; then echo .m; fi)
+REVISION ?= $(shell git -C $(MAKEFILE_DIR) rev-parse HEAD 2>/dev/null || echo no_git_information)$(shell if ! git -C $(MAKEFILE_DIR) diff --no-ext-diff --quiet --exit-code 2>/dev/null; then echo .m; fi)
 LINT_COMMIT_RANGE ?= main..HEAD
 GO_BUILD_LDFLAGS ?= -s -w
 GO_BUILD_FLAGS ?=