diff options
Diffstat (limited to 'makefile_escaping/escaping_env_vars.mk')
| -rw-r--r-- | makefile_escaping/escaping_env_vars.mk | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/makefile_escaping/escaping_env_vars.mk b/makefile_escaping/escaping_env_vars.mk new file mode 100644 index 0000000..7fdc087 --- /dev/null +++ b/makefile_escaping/escaping_env_vars.mk @@ -0,0 +1,22 @@ +escape = $(subst ','\'',$(1)) + +test_var ?= This is safe. +test_var := $(value test_var) +export test_var + +inner_var := Inner variable +outer_var := Outer variable - $(inner_var) - $(test_var) + +echo_test_var := printf '%s\n' '$(call escape,$(test_var))' +bash_test_var := bash -c '$(call escape,$(echo_test_var))' + +echo_outer_var := printf '%s\n' '$(call escape,$(outer_var))' + +.PHONY: test +test: + @printf '%s\n' '$(call escape,$(test_var))' + @printf '%s\n' "$$test_var" + @bash -c '$(call escape,$(echo_test_var))' + @bash -c '$(call escape,$(bash_test_var))' + @printf '%s\n' '$(call escape,$(outer_var))' + @bash -c '$(call escape,$(echo_outer_var))' |