PROJECT = rabbitmq_server_release
PROJECT_DESCRIPTION = RabbitMQ Server

# Propagate PROJECT_VERSION (from the command line or environment) to
# other components. If PROJECT_VERSION is unset, then an empty variable
# is propagated and the default version will fallback to the default
# value from rabbitmq-components.mk.
export RABBITMQ_VERSION = $(PROJECT_VERSION)

# Release artifacts are put in $(PACKAGES_DIR).
PACKAGES_DIR ?= $(abspath PACKAGES)

# List of plugins to include in a RabbitMQ release.
include plugins.mk

DEPS = rabbit_common rabbit $(PLUGINS)

DEP_PLUGINS = rabbit_common/mk/rabbitmq-dist.mk \
	      rabbit_common/mk/rabbitmq-run.mk \
	      rabbit_common/mk/rabbitmq-tools.mk

# FIXME: Use erlang.mk patched for RabbitMQ, while waiting for PRs to be
# reviewed and merged.

ERLANG_MK_REPO = https://github.com/rabbitmq/erlang.mk.git
ERLANG_MK_COMMIT = rabbitmq-tmp

ifneq ($(wildcard deps/.hex/cache.erl),)
deps:: restore-hex-cache-ets-file
endif

include rabbitmq-components.mk
include erlang.mk
include mk/stats.mk

# --------------------------------------------------------------------
# Mix Hex cache management.
# --------------------------------------------------------------------

# We restore the initial Hex cache.ets file from an Erlang term created
# at the time the source archive was prepared.
#
# See the `$(SOURCE_DIST)` recipe for the reason behind this step.

restore-hex-cache-ets-file: deps/.hex/cache.ets

deps/.hex/cache.ets: deps/.hex/cache.erl
	$(gen_verbose) $(call erlang,$(call restore_hex_cache_from_erl_term,$<,$@))

define restore_hex_cache_from_erl_term
  In = "$(1)",
  Out = "$(2)",
  {ok, [Props, Entries]} = file:consult(In),
  Name = proplists:get_value(name, Props),
  Type = proplists:get_value(type, Props),
  Access = proplists:get_value(protection, Props),
  NamedTable = proplists:get_bool(named_table, Props),
  Keypos = proplists:get_value(keypos, Props),
  Heir = proplists:get_value(heir, Props),
  ReadConc = proplists:get_bool(read_concurrency, Props),
  WriteConc = proplists:get_bool(write_concurrency, Props),
  Compressed = proplists:get_bool(compressed, Props),
  Options0 = [
    Type,
    Access,
    {keypos, Keypos},
    {heir, Heir},
    {read_concurrency, ReadConc},
    {write_concurrency, WriteConc}],
  Options1 = case NamedTable of
    true  -> [named_table | Options0];
    false -> Options0
  end,
  Options2 = case Compressed of
    true  -> [compressed | Options0];
    false -> Options0
  end,
  Tab = ets:new(Name, Options2),
  [true = ets:insert(Tab, Entry) || Entry <- Entries],
  ok = ets:tab2file(Tab, Out),
  init:stop().
endef

# --------------------------------------------------------------------
# Distribution.
# --------------------------------------------------------------------

.PHONY: source-dist clean-source-dist

SOURCE_DIST_BASE ?= rabbitmq-server
SOURCE_DIST_SUFFIXES ?= tar.xz
SOURCE_DIST ?= $(PACKAGES_DIR)/$(SOURCE_DIST_BASE)-$(PROJECT_VERSION)

# The first source distribution file is used by packages: if the archive
# type changes, you must update all packages' Makefile.
SOURCE_DIST_FILES = $(addprefix $(SOURCE_DIST).,$(SOURCE_DIST_SUFFIXES))

.PHONY: $(SOURCE_DIST_FILES)

source-dist: $(SOURCE_DIST_FILES)
	@:

RSYNC ?= rsync
RSYNC_V_0 =
RSYNC_V_1 = -v
RSYNC_V_2 = -v
RSYNC_V = $(RSYNC_V_$(V))
RSYNC_FLAGS += -a $(RSYNC_V)		\
	       --exclude '.sw?' --exclude '.*.sw?'	\
	       --exclude '*.beam'			\
	       --exclude '*.d'				\
	       --exclude '*.pyc'			\
	       --exclude '.git*'			\
	       --exclude '.hg*'				\
	       --exclude '.travis.yml'			\
	       --exclude '.*.plt'			\
	       --exclude '$(notdir $(ERLANG_MK_TMP))'	\
	       --exclude '_build/'			\
	       --exclude 'cover/'			\
	       --exclude 'deps/'			\
	       --exclude 'doc/'				\
	       --exclude 'docker/'			\
	       --exclude 'ebin/'			\
	       --exclude 'erl_crash.dump'		\
	       --exclude 'escript/'			\
	       --exclude 'MnesiaCore.*'			\
	       --exclude '$(notdir $(DEPS_DIR))/'	\
	       --exclude 'hexer*'			\
	       --exclude 'logs/'			\
	       --exclude 'packaging'			\
	       --exclude '/plugins/'			\
	       --include 'cli/plugins'			\
	       --exclude '$(notdir $(DIST_DIR))/'	\
	       --exclude 'test'				\
	       --exclude 'xrefr'			\
	       --exclude '/$(notdir $(PACKAGES_DIR))/'	\
	       --exclude '/PACKAGES/'			\
	       --exclude '/amqp_client/doc/'		\
	       --exclude '/amqp_client/rebar.config'	\
	       --exclude '/cowboy/doc/'			\
	       --exclude '/cowboy/examples/'		\
	       --exclude '/rabbit/escript/'		\
	       --exclude '/rabbitmq_amqp1_0/test/swiftmq/build/'\
	       --exclude '/rabbitmq_amqp1_0/test/swiftmq/swiftmq*'\
	       --exclude '/rabbitmq_cli/escript/'	\
	       --exclude '/rabbitmq_mqtt/test/build/'	\
	       --exclude '/rabbitmq_mqtt/test/test_client/'\
	       --exclude '/ranch/doc/'			\
	       --exclude '/ranch/examples/'		\
	       --exclude '/sockjs/examples/'		\
	       --delete					\
	       --delete-excluded

TAR ?= tar
TAR_V_0 =
TAR_V_1 = -v
TAR_V_2 = -v
TAR_V = $(TAR_V_$(V))

GZIP ?= gzip
BZIP2 ?= bzip2
XZ ?= xz

ZIP ?= zip
ZIP_V_0 = -q
ZIP_V_1 =
ZIP_V_2 =
ZIP_V = $(ZIP_V_$(V))

.PHONY: $(SOURCE_DIST)
.PHONY: clean-source-dist distclean-packages clean-unpacked-source-dist

$(SOURCE_DIST): $(ERLANG_MK_RECURSIVE_DEPS_LIST)
	$(verbose) mkdir -p $(dir $@)
	$(gen_verbose) $(RSYNC) $(RSYNC_FLAGS) ./ $@/
	$(verbose) echo "$(PROJECT_DESCRIPTION) $(PROJECT_VERSION)" > "$@/git-revisions.txt"
	$(verbose) echo "$(PROJECT) $$(git rev-parse HEAD) $$(git describe --tags --exact-match 2>/dev/null || git symbolic-ref -q --short HEAD)" >> "$@/git-revisions.txt"
	$(verbose) echo "$$(TZ= git --no-pager log -n 1 --format='%cd' --date='format-local:%Y%m%d%H%M.%S')" > "$@.git-times.txt"
	$(verbose) cat packaging/common/LICENSE.head > $@/LICENSE
	$(verbose) mkdir -p $@/deps/licensing
	$(verbose) set -e; for dep in $$(cat $(ERLANG_MK_RECURSIVE_DEPS_LIST) | LC_COLLATE=C sort); do \
		$(RSYNC) $(RSYNC_FLAGS) \
		 $$dep \
		 $@/deps; \
		rm -f \
		 $@/deps/rabbit_common/rebar.config \
		 $@/deps/rabbit_common/rebar.lock; \
		if test -f $@/deps/$$(basename $$dep)/erlang.mk && \
		   test "$$(wc -l $@/deps/$$(basename $$dep)/erlang.mk | awk '{print $$1;}')" = "1" && \
		   grep -qs -E "^[[:blank:]]*include[[:blank:]]+(erlang\.mk|.*/erlang\.mk)$$" $@/deps/$$(basename $$dep)/erlang.mk; then \
			echo "include ../../erlang.mk" > $@/deps/$$(basename $$dep)/erlang.mk; \
		fi; \
		sed -E -i.bak "s|^[[:blank:]]*include[[:blank:]]+\.\./.*erlang.mk$$|include ../../erlang.mk|" \
		 $@/deps/$$(basename $$dep)/Makefile && \
		rm $@/deps/$$(basename $$dep)/Makefile.bak; \
		mix_exs=$@/deps/$$(basename $$dep)/mix.exs; \
		if test -f $$mix_exs; then \
			(cd $$(dirname "$$mix_exs") && \
			 env DEPS_DIR=$@/deps HOME=$@/deps MIX_ENV=prod FILL_HEX_CACHE=yes mix local.hex --force && \
			 env DEPS_DIR=$@/deps HOME=$@/deps MIX_ENV=prod FILL_HEX_CACHE=yes mix deps.get --only prod && \
			 cp $(CURDIR)/mk/rabbitmq-mix.mk . && \
			 rm -rf _build deps); \
		fi; \
		if test -f "$$dep/license_info"; then \
			cp "$$dep/license_info" "$@/deps/licensing/license_info_$$(basename "$$dep")"; \
			cat "$$dep/license_info" >> $@/LICENSE; \
		fi; \
		find "$$dep" -maxdepth 1 -name 'LICENSE-*' -exec cp '{}' $@/deps/licensing \; ; \
		(cd $$dep; \
		 echo "$$(basename "$$dep") $$(git rev-parse HEAD) $$(git describe --tags --exact-match 2>/dev/null || git symbolic-ref -q --short HEAD)") \
		 >> "$@/git-revisions.txt"; \
		! test -d $$dep/.git || (cd $$dep; \
		 echo "$$(env TZ= git --no-pager log -n 1 --format='%cd' --date='format-local:%Y%m%d%H%M.%S')") \
		 >> "$@.git-times.txt"; \
	done
	$(verbose) cat packaging/common/LICENSE.tail >> $@/LICENSE
	$(verbose) find $@/deps/licensing -name 'LICENSE-*' -exec cp '{}' $@ \;
	$(verbose) for file in $$(find $@ -name '*.app.src'); do \
		sed -E -i.bak \
		  -e 's/[{]vsn[[:blank:]]*,[[:blank:]]*(""|"0.0.0")[[:blank:]]*}/{vsn, "$(PROJECT_VERSION)"}/' \
		  -e 's/[{]broker_version_requirements[[:blank:]]*,[[:blank:]]*\[\][[:blank:]]*}/{broker_version_requirements, ["$(PROJECT_VERSION)"]}/' \
		  $$file; \
		rm $$file.bak; \
	done
	$(verbose) echo "PLUGINS := $(PLUGINS)" > $@/plugins.mk
# Remember the latest Git timestamp.
	$(verbose) sort -r < "$@.git-times.txt" | head -n 1 > "$@.git-time.txt"
# Mix Hex component requires a cache file, otherwise it refuses to build
# offline... That cache is an ETS table with all the applications we
# depend on, plus some versioning informations and checksums. There
# are two problems with that: the table contains a date (`last_update`
# field) and `ets:tab2file()` produces a different file each time it's
# called.
#
# To make our source archive reproducible, we fix the time of the
# `last_update` field to the last Git commit and dump the content of the
# table as an Erlang term to a text file.
#
# The ETS file must be recreated before compiling RabbitMQ. See the
# `restore-hex-cache-ets-file` Make target.
	$(verbose) $(call erlang,$(call dump_hex_cache_to_erl_term,$@,$@.git-time.txt))
# Fix file timestamps to have reproducible source archives.
	$(verbose) find $@ -print0 | xargs -0 touch -t "$$(cat "$@.git-time.txt")"
	$(verbose) rm "$@.git-times.txt" "$@.git-time.txt"

define dump_hex_cache_to_erl_term
  In = "$(1)/deps/.hex/cache.ets",
  Out = "$(1)/deps/.hex/cache.erl",
  {ok, DateStr} = file:read_file("$(2)"),
  {match, Date} = re:run(DateStr,
    "^([0-9]{4})([0-9]{2})([0-9]{2})([0-9]{2})([0-9]{2})\.([0-9]{2})",
    [{capture, all_but_first, list}]),
  [Year, Month, Day, Hour, Min, Sec] = [erlang:list_to_integer(V) || V <- Date],
  {ok, Tab} = ets:file2tab(In),
  true = ets:insert(Tab, {last_update, {{Year, Month, Day}, {Hour, Min, Sec}}}),
  Props = [
    Prop
    || {Key, _} = Prop <- ets:info(Tab),
    Key =:= name orelse
    Key =:= type orelse
    Key =:= protection orelse
    Key =:= named_table orelse
    Key =:= keypos orelse
    Key =:= heir orelse
    Key =:= read_concurrency orelse
    Key =:= write_concurrency orelse
    Key =:= compressed],
  Entries = ets:tab2list(Tab),
  ok = file:write_file(Out, io_lib:format("~w.~n~w.~n", [Props, Entries])),
  ok = file:delete(In),
  init:stop().
endef

$(SOURCE_DIST).manifest: $(SOURCE_DIST)
	$(gen_verbose) cd $(dir $(SOURCE_DIST)) && \
		find $(notdir $(SOURCE_DIST)) | LC_COLLATE=C sort > $@

ifeq ($(shell tar --version | grep -c "GNU tar"),0)
# Skip all flags if this is Darwin (a.k.a. macOS, a.k.a. OS X)
ifeq ($(shell uname | grep -c "Darwin"),0)
TAR_FLAGS_FOR_REPRODUCIBLE_BUILDS = --uid 0 \
				    --gid 0 \
				    --numeric-owner \
				    --no-acls \
				    --no-fflags \
				    --no-xattrs
endif
else
TAR_FLAGS_FOR_REPRODUCIBLE_BUILDS = --owner 0 \
				    --group 0 \
				    --numeric-owner
endif

$(SOURCE_DIST).tar.gz: $(SOURCE_DIST).manifest
	$(gen_verbose) cd $(dir $(SOURCE_DIST)) && \
		$(TAR) $(TAR_V) $(TAR_FLAGS_FOR_REPRODUCIBLE_BUILDS) --no-recursion -T $(SOURCE_DIST).manifest -cf - | \
		$(GZIP) --best > $@

$(SOURCE_DIST).tar.bz2: $(SOURCE_DIST).manifest
	$(gen_verbose) cd $(dir $(SOURCE_DIST)) && \
		$(TAR) $(TAR_V) $(TAR_FLAGS_FOR_REPRODUCIBLE_BUILDS) --no-recursion -T $(SOURCE_DIST).manifest -cf - | \
		$(BZIP2) > $@

$(SOURCE_DIST).tar.xz: $(SOURCE_DIST).manifest
	$(gen_verbose) cd $(dir $(SOURCE_DIST)) && \
		$(TAR) $(TAR_V) $(TAR_FLAGS_FOR_REPRODUCIBLE_BUILDS) --no-recursion -T $(SOURCE_DIST).manifest -cf - | \
		$(XZ) > $@

$(SOURCE_DIST).zip: $(SOURCE_DIST).manifest
	$(verbose) rm -f $@
	$(gen_verbose) cd $(dir $(SOURCE_DIST)) && \
		$(ZIP) $(ZIP_V) --names-stdin $@ < $(SOURCE_DIST).manifest

clean:: clean-source-dist

clean-source-dist:
	$(gen_verbose) rm -rf -- $(SOURCE_DIST_BASE)-*

distclean:: distclean-packages

distclean-packages:
	$(gen_verbose) rm -rf -- $(PACKAGES_DIR)

## If a dependency doesn't have a clean target - do not call it
clean-unpacked-source-dist:
	for d in deps/*; do \
		if test -f $$d/Makefile; then \
			(! make -n clean) || (make -C $$d clean || exit $$?); \
		fi; \
	done

# --------------------------------------------------------------------
# Packaging.
# --------------------------------------------------------------------

.PHONY: packages package-deb \
	package-rpm package-rpm-fedora package-rpm-suse \
	package-windows \
	package-generic-unix

# This variable is exported so sub-make instances know where to find the
# archive.
PACKAGES_SOURCE_DIST_FILE ?= $(firstword $(SOURCE_DIST_FILES))

packages package-deb package-rpm \
package-rpm-redhat package-rpm-fedora package-rpm-rhel6 package-rpm-rhel7 \
package-rpm-rhel8 package-rpm-suse package-rpm-opensuse package-rpm-sles11 \
package-windows \
package-generic-unix: $(PACKAGES_SOURCE_DIST_FILE)
	$(verbose) $(MAKE) -C packaging $@ \
		SOURCE_DIST_FILE=$(abspath $(PACKAGES_SOURCE_DIST_FILE))

# --------------------------------------------------------------------
# Installation.
# --------------------------------------------------------------------

.PHONY: manpages web-manpages distclean-manpages

manpages web-manpages distclean-manpages:
	$(MAKE) -C $(DEPS_DIR)/rabbit $@ DEPS_DIR=$(DEPS_DIR)

.PHONY: install install-erlapp install-scripts install-bin install-man \
	install-windows install-windows-erlapp install-windows-scripts \
	install-windows-docs

DESTDIR ?=

PREFIX ?= /usr/local
WINDOWS_PREFIX ?= rabbitmq-server-windows-$(PROJECT_VERSION)

MANDIR ?= $(PREFIX)/share/man
RMQ_ROOTDIR ?= $(PREFIX)/lib/erlang
RMQ_BINDIR ?= $(RMQ_ROOTDIR)/bin
RMQ_LIBDIR ?= $(RMQ_ROOTDIR)/lib
RMQ_ERLAPP_DIR ?= $(RMQ_LIBDIR)/rabbitmq_server-$(PROJECT_VERSION)
RMQ_AUTOCOMPLETE_DIR ?= $(RMQ_ROOTDIR)/autocomplete

SCRIPTS = rabbitmq-defaults \
	  rabbitmq-env \
	  rabbitmq-server \
	  rabbitmqctl \
	  rabbitmq-plugins \
	  rabbitmq-diagnostics \
	  rabbitmq-queues \
	  rabbitmq-upgrade

AUTOCOMPLETE_SCRIPTS = bash_autocomplete.sh zsh_autocomplete.sh

WINDOWS_SCRIPTS = rabbitmq-defaults.bat \
		  rabbitmq-echopid.bat \
		  rabbitmq-env.bat \
		  rabbitmq-plugins.bat \
		  rabbitmq-diagnostics.bat \
		  rabbitmq-queues.bat \
		  rabbitmq-server.bat \
		  rabbitmq-service.bat \
		  rabbitmq-upgrade.bat \
		  rabbitmqctl.bat

UNIX_TO_DOS ?= todos

inst_verbose_0 = @echo " INST  " $@;
inst_verbose = $(inst_verbose_$(V))

install: install-erlapp install-scripts

install-erlapp: dist
	$(verbose) mkdir -p $(DESTDIR)$(RMQ_ERLAPP_DIR)
	$(inst_verbose) cp -r \
		LICENSE* \
		$(DEPS_DIR)/rabbit/INSTALL \
		$(DIST_DIR) \
		$(DESTDIR)$(RMQ_ERLAPP_DIR)
	$(verbose) echo "Put your EZs here and use rabbitmq-plugins to enable them." \
		> $(DESTDIR)$(RMQ_ERLAPP_DIR)/$(notdir $(DIST_DIR))/README

CLI_ESCRIPTS_DIR = escript

install-escripts:
	$(verbose) $(MAKE) -C $(DEPS_DIR)/rabbitmq_cli install \
		PREFIX="$(RMQ_ERLAPP_DIR)/$(CLI_ESCRIPTS_DIR)"

install-scripts: install-escripts
	$(verbose) mkdir -p $(DESTDIR)$(RMQ_ERLAPP_DIR)/sbin
	$(inst_verbose) for script in $(SCRIPTS); do \
		cp "$(DEPS_DIR)/rabbit/scripts/$$script" \
			"$(DESTDIR)$(RMQ_ERLAPP_DIR)/sbin"; \
		chmod 0755 "$(DESTDIR)$(RMQ_ERLAPP_DIR)/sbin/$$script"; \
	done

# FIXME: We do symlinks to scripts in $(RMQ_ERLAPP_DIR))/sbin but this
# code assumes a certain hierarchy to make relative symlinks.
install-bin: install-scripts install-autocomplete-scripts
	$(verbose) mkdir -p $(DESTDIR)$(RMQ_BINDIR)
	$(inst_verbose) for script in $(SCRIPTS); do \
		test -e $(DESTDIR)$(RMQ_BINDIR)/$$script || \
			ln -sf ../lib/$(notdir $(RMQ_ERLAPP_DIR))/sbin/$$script \
			 $(DESTDIR)$(RMQ_BINDIR)/$$script; \
	done

install-autocomplete-scripts:
	$(verbose) mkdir -p $(DESTDIR)$(RMQ_AUTOCOMPLETE_DIR)
	$(inst_verbose) for script in $(AUTOCOMPLETE_SCRIPTS); do \
		cp "scripts/$$script" \
			"$(DESTDIR)$(RMQ_AUTOCOMPLETE_DIR)" && \
		chmod 0755 "$(DESTDIR)$(RMQ_AUTOCOMPLETE_DIR)/$$script"; \
	done

install-man: manpages
	$(inst_verbose) sections=$$(ls -1 $(DEPS_DIR)/rabbit/docs/*.[1-9] \
		| sed -E 's/.*\.([1-9])$$/\1/' | uniq | sort); \
	for section in $$sections; do \
		mkdir -p $(DESTDIR)$(MANDIR)/man$$section; \
		for manpage in $(DEPS_DIR)/rabbit/docs/*.$$section; do \
			gzip < $$manpage \
			 > $(DESTDIR)$(MANDIR)/man$$section/$$(basename $$manpage).gz; \
		done; \
	done

install-windows: install-windows-erlapp install-windows-scripts install-windows-docs

install-windows-erlapp: dist
	$(verbose) mkdir -p $(DESTDIR)$(WINDOWS_PREFIX)
	$(inst_verbose) cp -r \
		LICENSE* \
		$(DEPS_DIR)/rabbit/ebin \
		$(DEPS_DIR)/rabbit/priv \
		$(DEPS_DIR)/rabbit/INSTALL \
		$(DIST_DIR) \
		$(DESTDIR)$(WINDOWS_PREFIX)
	$(verbose) echo "Put your EZs here and use rabbitmq-plugins.bat to enable them." \
		> $(DESTDIR)$(WINDOWS_PREFIX)/$(notdir $(DIST_DIR))/README.txt
	$(verbose) $(UNIX_TO_DOS) $(DESTDIR)$(WINDOWS_PREFIX)/plugins/README.txt

	@# FIXME: Why do we copy headers?
	$(verbose) cp -r \
		$(DEPS_DIR)/rabbit/include \
		$(DESTDIR)$(WINDOWS_PREFIX)
	@# rabbitmq-common provides headers too: copy them to
	@# rabbitmq_server/include.
	$(verbose) cp -r \
		$(DEPS_DIR)/rabbit_common/include \
		$(DESTDIR)$(WINDOWS_PREFIX)

install-windows-escripts:
	$(verbose) $(MAKE) -C $(DEPS_DIR)/rabbitmq_cli install \
		PREFIX="$(WINDOWS_PREFIX)/$(CLI_ESCRIPTS_DIR)"

install-windows-scripts: install-windows-escripts
	$(verbose) mkdir -p $(DESTDIR)$(WINDOWS_PREFIX)/sbin
	$(inst_verbose) for script in $(WINDOWS_SCRIPTS); do \
		cp "$(DEPS_DIR)/rabbit/scripts/$$script" \
			"$(DESTDIR)$(WINDOWS_PREFIX)/sbin"; \
		chmod 0755 "$(DESTDIR)$(WINDOWS_PREFIX)/sbin/$$script"; \
	done

install-windows-docs: install-windows-erlapp
	$(verbose) mkdir -p $(DESTDIR)$(WINDOWS_PREFIX)/etc
	$(inst_verbose) man $(DEPS_DIR)/rabbit/docs/rabbitmq-service.8 > tmp-readme-service.txt
	$(verbose) col -bx < ./tmp-readme-service.txt > $(DESTDIR)$(WINDOWS_PREFIX)/readme-service.txt
	$(verbose) rm -f ./tmp-readme-service.txt
	$(verbose) for file in \
	 $(DESTDIR)$(WINDOWS_PREFIX)/readme-service.txt \
	 $(DESTDIR)$(WINDOWS_PREFIX)/LICENSE* \
	 $(DESTDIR)$(WINDOWS_PREFIX)/INSTALL; do \
		$(UNIX_TO_DOS) "$$file"; \
		case "$$file" in \
		*.txt) ;; \
		*.example) ;; \
		*) mv "$$file" "$$file.txt" ;; \
		esac; \
	done