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authorEgor Tensin <Egor.Tensin@gmail.com>2020-05-29 23:26:31 +0000
committerEgor Tensin <Egor.Tensin@gmail.com>2020-05-29 23:26:31 +0000
commit90a298276f7f9b9c93e8c94ac27c9ed43da8c9e3 (patch)
treeae5507b531bccf21b15f4958ffa6a2091bce0301
parentmakefile_escaping: add prologue to all *.mk files (diff)
downloadblog-90a298276f7f9b9c93e8c94ac27c9ed43da8c9e3.tar.gz
blog-90a298276f7f9b9c93e8c94ac27c9ed43da8c9e3.zip
makefile_escaping: add comments to *.mk files
-rw-r--r--makefile_escaping/escaping_env_vars.mk11
-rw-r--r--makefile_escaping/escaping_quotes.mk2
-rw-r--r--makefile_escaping/escaping_shell.mk11
3 files changed, 18 insertions, 6 deletions
diff --git a/makefile_escaping/escaping_env_vars.mk b/makefile_escaping/escaping_env_vars.mk
index 35ea35d..2b8690b 100644
--- a/makefile_escaping/escaping_env_vars.mk
+++ b/makefile_escaping/escaping_env_vars.mk
@@ -11,12 +11,17 @@ 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)
-
+# printf $test_var
echo_test_var := printf '%s\n' '$(call escape,$(test_var))'
+# bash -c 'printf $test_var'
bash_test_var := bash -c '$(call escape,$(echo_test_var))'
+# Simple variable.
+inner_var := Inner variable
+# Composite variable, includes both $inner_var and $test_var.
+outer_var := Outer variable - $(inner_var) - $(test_var)
+
+# printf $outer_var
echo_outer_var := printf '%s\n' '$(call escape,$(outer_var))'
.PHONY: test
diff --git a/makefile_escaping/escaping_quotes.mk b/makefile_escaping/escaping_quotes.mk
index 2a43f69..13835e7 100644
--- a/makefile_escaping/escaping_quotes.mk
+++ b/makefile_escaping/escaping_quotes.mk
@@ -9,7 +9,9 @@ escape = $(subst ','\'',$(1))
test_var := Includes ' quote
+# printf $test_var
echo_test_var := printf '%s\n' '$(call escape,$(test_var))'
+# bash -c 'printf $test_var'
bash_test_var := bash -c '$(call escape,$(echo_test_var))'
test:
diff --git a/makefile_escaping/escaping_shell.mk b/makefile_escaping/escaping_shell.mk
index c81eb98..39fabf2 100644
--- a/makefile_escaping/escaping_shell.mk
+++ b/makefile_escaping/escaping_shell.mk
@@ -10,12 +10,17 @@ escape = $(subst ','\'',$(1))
cwd := $(shell basename -- "$$( pwd )")
export cwd
-inner_var := Inner variable
-outer_var := Outer variable - $(inner_var) - $(cwd)
-
+# printf $cwd
echo_cwd := printf '%s\n' '$(call escape,$(cwd))'
+# bash -c 'printf $cwd'
bash_cwd := bash -c '$(call escape,$(echo_cwd))'
+# Simple variable.
+inner_var := Inner variable
+# Composite variable, includes both $inner_var and $cwd.
+outer_var := Outer variable - $(inner_var) - $(cwd)
+
+# printf $outer_var
echo_outer_var := printf '%s\n' '$(call escape,$(outer_var))'
.PHONY: test