From 4b0959458c821ef26990fe1fe5931d552512526d Mon Sep 17 00:00:00 2001
From: Egor Tensin <Egor.Tensin@gmail.com>
Date: Sat, 23 May 2020 23:20:31 +0000
Subject: makefile_escaping: set up CI

---
 makefile_escaping/env_vars.mk     | 15 +++++++++++++++
 makefile_escaping/prologue.mk     |  6 ++++++
 makefile_escaping/quotes.mk       | 11 +++++++++++
 makefile_escaping/quoting_args.mk |  8 ++++++++
 makefile_escaping/shell.mk        | 14 ++++++++++++++
 5 files changed, 54 insertions(+)
 create mode 100644 makefile_escaping/env_vars.mk
 create mode 100644 makefile_escaping/prologue.mk
 create mode 100644 makefile_escaping/quotes.mk
 create mode 100644 makefile_escaping/quoting_args.mk
 create mode 100644 makefile_escaping/shell.mk

(limited to 'makefile_escaping')

diff --git a/makefile_escaping/env_vars.mk b/makefile_escaping/env_vars.mk
new file mode 100644
index 0000000..47c1647
--- /dev/null
+++ b/makefile_escaping/env_vars.mk
@@ -0,0 +1,15 @@
+escape = $(subst ','\'',$(1))
+escape_var = $(call escape,$(value $(1)))
+
+test_var ?= This is safe.
+export test_var
+
+echo_test_var := printf '%s\n' '$(call escape_var,test_var)'
+bash_test_var := bash -c '$(call escape_var,echo_test_var)'
+
+.PHONY: test
+test:
+	@printf '%s\n' '$(call escape_var,test_var)'
+	@printf '%s\n' "$$test_var"
+	@bash -c '$(call escape_var,echo_test_var)'
+	@bash -c '$(call escape_var,bash_test_var)'
diff --git a/makefile_escaping/prologue.mk b/makefile_escaping/prologue.mk
new file mode 100644
index 0000000..1c12914
--- /dev/null
+++ b/makefile_escaping/prologue.mk
@@ -0,0 +1,6 @@
+MAKEFLAGS += --warn-undefined-variables
+.DEFAULT_GOAL := all
+.DELETE_ON_ERROR:
+.SUFFIXES:
+SHELL := bash
+.SHELLFLAGS := -e -o pipefail -c
diff --git a/makefile_escaping/quotes.mk b/makefile_escaping/quotes.mk
new file mode 100644
index 0000000..2d953f8
--- /dev/null
+++ b/makefile_escaping/quotes.mk
@@ -0,0 +1,11 @@
+escape = $(subst ','\'',$(1))
+
+test_var := Includes ' quote
+
+echo_test_var := printf '%s\n' '$(call escape,$(test_var))'
+bash_test_var := bash -c '$(call escape,$(echo_test_var))'
+
+test:
+	printf '%s\n' '$(call escape,$(test_var))'
+	bash -c '$(call escape,$(echo_test_var))'
+	bash -c '$(call escape,$(bash_test_var))'
diff --git a/makefile_escaping/quoting_args.mk b/makefile_escaping/quoting_args.mk
new file mode 100644
index 0000000..d27c81d
--- /dev/null
+++ b/makefile_escaping/quoting_args.mk
@@ -0,0 +1,8 @@
+test_var := Same line?
+export test_var
+
+test:
+	printf '%s\n' $(test_var)
+	printf '%s\n' '$(test_var)'
+	printf '%s\n' $$test_var
+	printf '%s\n' "$$test_var"
diff --git a/makefile_escaping/shell.mk b/makefile_escaping/shell.mk
new file mode 100644
index 0000000..36db8d8
--- /dev/null
+++ b/makefile_escaping/shell.mk
@@ -0,0 +1,14 @@
+escape = $(subst ','\'',$(1))
+
+cwd := $(shell basename -- "$$( pwd )")
+export cwd
+
+echo_cwd := printf '%s\n' '$(call escape,$(cwd))'
+bash_cwd := bash -c '$(call escape,$(echo_cwd))'
+
+.PHONY: test
+test:
+	@printf '%s\n' '$(call escape,$(cwd))'
+	@printf '%s\n' "$$cwd"
+	@bash -c '$(call escape,$(echo_cwd))'
+	@bash -c '$(call escape,$(bash_cwd))'
-- 
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