Give magic file symlinks unique names

[Shushe] / GNUmakefile

diff --git a/GNUmakefile b/GNUmakefile
index 6fd197044b04a120cead268a8f8ab99a86566839..f5b738aa94f2faf62005e33b1ffa4f390f8f6acf 100644 (file)
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -149,7 +149,7 @@ SRCDIR := sources
 # Multiple directories can be given so long as files with the same name do not exist in each.
 #
 # These can be inside of `SRCDIR´ directories if desired.
-INCLUDEDIR := $(SRCDIR)/includes
+INCLUDEDIR := $(foreach dir,$(SRCDIR),$(dir)/includes)
 
 # The directory in which to generate temporary buildfiles.
 #
@@ -343,11 +343,16 @@ override perenc = $(shell $(PRINTF) '%s\n' $(foreach unencoded,$1,$(call quote,$
 # ☡ This variable creates a subshell every time it is computed.
 override pathenc = $(subst %2F,/,$(call perenc,$1))
 
+# (callable) Create a unique name for the given file, based on its absolute path.
+#
+# ☡ This variable creates a subshell every time it is computed.
+namehash = $(shell $(PRINTF) '%s' $(call quote,$(abspath $1)) | $(CKSUM) | $(SED) 's/ .*//' | $(XARGS) -E '' $(PRINTF) '%X')-$(notdir $1)
+
 # (overridable) Collect all of the applicable includes from the includes directory.
-sourceincludes := $(if $(and $(INCLUDEDIR),$(wildcard $(INCLUDEDIR))),$(patsubst ./%,%,$(shell $(FIND) $(foreach dir,$(INCLUDEDIR),$(call quote,$(dir))) '(' $(FINDINCLUDERULES) ')' -a -type f)),)
+sourceincludes := $(if $(and $(INCLUDEDIR),$(wildcard $(INCLUDEDIR))),$(patsubst ./%,%,$(shell $(FIND) $(foreach dir,$(INCLUDEDIR),$(call quote,$(dir))) '(' $(FINDINCLUDERULES) ')' -a -type f -a -print)),)
 
 # (overridable) Collect all of the applicable source files from the source directory, removing any which are also includes.
-sourcefiles := $(if $(and $(SRCDIR),$(wildcard $(SRCDIR))),$(filter-out $(sourceincludes),$(patsubst ./%,%,$(shell $(FIND) $(foreach dir,$(SRCDIR),$(call quote,$(dir))) '(' $(FINDRULES) ')' -a -type f))))
+sourcefiles := $(if $(and $(SRCDIR),$(wildcard $(SRCDIR))),$(filter-out $(sourceincludes),$(patsubst ./%,%,$(shell $(FIND) $(foreach dir,$(SRCDIR),$(call quote,$(dir))) '(' $(FINDRULES) ')' -a -type f -a -print))))
 
 # Figure out the file type of each source file and source include.
 ifneq ($(wildcard $(BUILDDIR)/magic.mgc),)
@@ -373,7 +378,7 @@ override assetfiles := $(filter-out $(xmlfiles) $(plaintextfiles),$(sourcefiles)
 override typeoffile = $(foreach file,$1,$(or $(patsubst $(file)|%,%,$(filter $(file)|%,$(types))),$(error Unable to get type of file `$(file)´)))
 
 # Pair each source magic file with its location in the build directory.
-override magicpair := $(foreach magicfile,$(MAGIC),$(magicfile)|$(BUILDDIR)/magic/$(notdir $(magicfile)))
+override magicpair := $(foreach magicfile,$(MAGIC),$(magicfile)|$(BUILDDIR)/magic/$(call namehash,$(magicfile)))
 
 # (callable) Get the source file for the given magic files.
 override magicsource = $(foreach magicpath,$1,$(patsubst %|$(magicpath),%,$(firstword $(filter %|$(magicpath),$(magicpair)))))
@@ -424,7 +429,7 @@ override fileuri = $(foreach file,$1,$(or $(patsubst $(file)|%,%,$(filter $(file
 
 ifneq ($(wildcard $(BUILDDIR)/dependencies),)
 # Pair each file with a list of dependencies for it.
-override dependenciesforfile := $(foreach file,$(filter-out $(assetfiles),$(sourcefiles) $(sourceincludes)),$(file)|$(subst $(space),|,$(shell $(CAT) $(call quote,$(BUILDDIR)/dependencies) | $(SED) $(call quote,/^$(call sedesc,$(call localuri,$(file)))$$/$(comma)/^[^    ]/!d;/^ /!d;s/^ //))))
+override dependenciesforfile := $(foreach file,$(filter-out $(assetfiles),$(sourcefiles) $(sourceincludes)),$(file)|$(subst $(space),|,$(shell $(SED) $(call quote,/^$(call sedesc,$(call localuri,$(file)))$$/$(comma)/^[^    ]/!d;/^ /!d;s/^ //) <$(call quote,$(BUILDDIR)/dependencies))))
 
 # (callable) Get the list of dependency leiris for the given source files.
 #