Lady’s Gitweb - Shushe/blob - GNUmakefile

   1 # SPDX-FileCopyrightText: 2023, 2024 Lady <https://www.ladys.computer/about/#lady>
   2 # SPDX-License-Identifier: MPL-2.0
   3
   4 SHELL = /bin/sh
   5
   6 # ━ § BASIC INFORMATION ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   7 override define makefileinfo
   8  ╭────────────────────────────╮
   9 ╔╡ ⁌ ⛩📰 书社 ∷ GNUmakefile ╞═════════════════════════════════╗
  10 ║╰────────────────────────────╯                                ║
  11 ╟┬ ¶ Prerequisites ───────────────────────────────────────────┬╢
  12 ║│                                                            │║
  13 ║│ Requires G·N·U Make, at least version 3.81, the Fine Free  │║
  14 ║│ File Command, and the various programs packaged with       │║
  15 ║│ libxml2 and libxslt. Beyond this, only programs specified  │║
  16 ║│ by Posix are required. The full list of program            │║
  17 ║│ requirements is as follows :—                             │║
  18 ║│                                                            │║
  19 ║│ • awk                                                      │║
  20 ║│ • cat                                                      │║
  21 ║│ • cd                                                       │║
  22 ║│ • cksum                                                    │║
  23 ║│ • cp                                                       │║
  24 ║│ • date                                                     │║
  25 ║│ • diff (with -u)                                           │║
  26 ║│ • file (specifically the Fine Free File Command)           │║
  27 ║│ • find                                                     │║
  28 ║│ • grep                                                     │║
  29 ║│ • git (optional)                                           │║
  30 ║│ • ln                                                       │║
  31 ║│ • make (specifically G·N·U Make, version 3.81 or later)    │║
  32 ║│ • mkdir                                                    │║
  33 ║│ • mv                                                       │║
  34 ║│ • od                                                       │║
  35 ║│ • pax (ustar format, when generating archives)             │║
  36 ║│ • printf                                                   │║
  37 ║│ • rm                                                       │║
  38 ║│ • sed                                                      │║
  39 ║│ • sleep                                                    │║
  40 ║│ • test                                                     │║
  41 ║│ • touch                                                    │║
  42 ║│ • tr                                                       │║
  43 ║│ • uuencode                                                 │║
  44 ║│ • uudecode                                                 │║
  45 ║│ • xargs                                                    │║
  46 ║│ • xmlcatalog (provided by libxml2)                         │║
  47 ║│ • xmllint (provided by libxml2)                            │║
  48 ║│ • xsltproc (provided by libxslt)                           │║
  49 ║│                                                            │║
  50 ║│ In all cases, you can supply your own version of any       │║
  51 ║│ program `program´ by overriding the corresponding variable │║
  52 ║│ `PROGRAM´ when calling Make.                               │║
  53 ║╰────────────────────────────────────────────────────────────╯║
  54 ╟┬ ¶ Usage ───────────────────────────────────────────────────┬╢
  55 ║│                                                            │║
  56 ║│ • `make all´ (default): Compile, but do not install, all   │║
  57 ║│   files.                                                   │║
  58 ║│                                                            │║
  59 ║│ • `make clean´: Remove `BUILDDIR´.                         │║
  60 ║│                                                            │║
  61 ║│ • `make gone´: Remove `BUILDDIR´ and installed files.      │║
  62 ║│                                                            │║
  63 ║│ • `make help´: Print this message.                         │║
  64 ║│                                                            │║
  65 ║│ • `make install´: Compile all files and install in         │║
  66 ║│   `DESTDIR´.                                               │║
  67 ║│                                                            │║
  68 ║│ • `make list´: List all recognized source files and their  │║
  69 ║│   classification (including media type and dependencies).  │║
  70 ║│                                                            │║
  71 ║│ • `make listout´: List out the destinations of all         │║
  72 ║│   resulting files (relative to `DESTDIR´), e·g for         │║
  73 ║│   processing by another script.                            │║
  74 ║│                                                            │║
  75 ║│ • `make uninstall´: Remove installed files, but not        │║
  76 ║│   `BUILDDIR´.                                              │║
  77 ║│                                                            │║
  78 ║│ Set `VERBOSE=1´ to see the text of commands as they are    │║
  79 ║│ executed.                                                  │║
  80 ║│                                                            │║
  81 ║│ See `README.markdown´ for a more involved description of   │║
  82 ║│ the capabilities and configuration of this program.        │║
  83 ║╰────────────────────────────────────────────────────────────╯║
  84 ╟┬ ¶ Copyright & License ─────────────────────────────────────┬╢
  85 ║│                                                            │║
  86 ║│ Copyright © 2023–2024 Lady [@ Ladys Computer].             │║
  87 ║│                                                            │║
  88 ║│ This Source Code Form is subject to the terms of the       │║
  89 ║│ Mozilla Public License, v 2.0. If a copy of the M·P·L was  │║
  90 ║│ not distributed with this file, You can obtain one at      │║
  91 ║│ <http://mozilla.org/MPL/2.0/>.                             │║
  92 ║╰────────────────────────────────────────────────────────────╯║
  93 ╚══════════════════════════════════════════════════════════════╝
  94 endef
  95
  96 # ━ § MAKE·FILE SETUP ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  97
  98 # Programs needed to run this make·file.
  99 #
 100 # If these are not installed on your computer, or you need to use a different implementation, you can override the appropriate variable.
 101 AWK := awk
 102 CAT := cat
 103 CD := cd
 104 CKSUM := cksum
 105 CP := cp
 106 DATE := date
 107 DIFF := diff
 108 FILE := file
 109 FIND := find
 110 GIT := git
 111 GREP := grep
 112 LN := ln
 113 MKDIR := mkdir
 114 MV := mv
 115 OD := od
 116 PAX := pax
 117 PRINTF := printf
 118 RM := rm
 119 SED := sed
 120 SLEEP := sleep
 121 TEST := test
 122 TOUCH := touch
 123 TR := tr
 124 UUDECODE := uudecode
 125 UUENCODE := uuencode
 126 XARGS := xargs
 127 XMLCATALOG := xmlcatalog
 128 XMLLINT := xmllint
 129 XSLTPROC := xsltproc
 130
 131 # This variable is not used in normal execution.
 132 #
 133 # In the archiving `MODE´, it provides the X·M·L file from which the archive should be constructed.
 134 SRC :=
 135
 136 # This variable is not used in normal execution.
 137 #
 138 # In the archiving `MODE´, it provides a user‐friendly name for the archive.
 139 NAME :=
 140
 141 # The directory which contains the source files.
 142 #
 143 # Multiple directories can be given so long as files with the same name do not exist in each.
 144 SRCDIR := sources
 145
 146 # The directory which contains “includes”:
 147 # Files which may be included in other files but for which no final output will be generated.
 148 #
 149 # Multiple directories can be given so long as files with the same name do not exist in each.
 150 #
 151 # These can be inside of `SRCDIR´ directories if desired.
 152 #
 153 # This variable is also used by the two‐stage `MODE´, where it gives the include directory for the second stage.
 154 INCLUDEDIR := $(foreach dir,$(SRCDIR),$(dir)/includes)
 155
 156 # The directory which contains the data files.
 157 #
 158 # Only used in the two‐stage `MODE´, and defaults to that `MODE´ if this directory exists.
 159 # This directory is used as the include directory in the first stage.
 160 #
 161 # Multiple directories can be given so long as files with the same name do not exist in each.
 162 DATADIR :=
 163
 164 # The directory in which to generate temporary buildfiles.
 165 #
 166 # This variable is also used by the archiving and two‐stage `MODE´s.
 167 BUILDDIR := build
 168
 169 # The directory into which to output files on `make install´.
 170 #
 171 # This variable is also used by the archiving `MODE´.
 172 DESTDIR := public
 173
 174 # The location of this Makefile (and related ⛩📰 书社 files), relative to the current working directory.
 175 #
 176 # By default, this is inferred from the variable `MAKEFILE_LIST´.
 177 #
 178 # This variable is also used by the archiving and two‐stage `MODE´s.
 179 THISDIR := $(patsubst %/,%,$(dir $(lastword $(MAKEFILE_LIST))))
 180
 181 # Configuration of `find´.
 182 #
 183 # By default, `find´ will ignore files which begin with a period and those which are likely to cause problems for `make´.
 184 #
 185 # These variables are also used by the two‐stage `MODE´.
 186 EXTRAFINDRULES :=
 187 EXTRAFINDINCLUDERULES :=
 188 FINDRULES := '!' '(' '(' -name '[.-]*' -a '!' -name '.' -o -name '*[][*?:|$$%\#\\; ]*' -o -name '*[)]' ')' -a -prune ')'$(if $(EXTRAFINDRULES), -a '(' $(EXTRAFINDRULES) ')',)
 189 FINDINCLUDERULES := $(FINDRULES)$(if $(EXTRAFINDINCLUDERULES), -a '(' $(EXTRAFINDINCLUDERULES) ')',)
 190
 191 # File extensions which indicate files in `SRCDIR´ which should be built as part of the first, rather than second, stage of the two‐stage `MODE´.
 192 DATAEXT := rdf
 193
 194 # Rules for identifying files in `SRCDIR´ which should be built as part of the first, rather than second, stage of the two‐stage `MODE´.
 195 #
 196 # By default, this just constructs rules from `DATAEXT´.
 197 EXTRAFINDDATARULES :=
 198 FINDDATARULES := -name '.' $(foreach ext,$(DATAEXT), -o -name '$(subst ','"'"',[!.]*.$(ext))')$(if $(EXTRAFINDDATARULES), -a '(' $(EXTRAFINDDATARULES) ')',)
 199
 200 # The list of magic files to use when determining media types.
 201 #
 202 # Some are provided as part of this repository, but you can add more if you need different media type detection.
 203 #
 204 # Your computer probably has several already installed at `/usr/share/file/magic´.
 205 EXTRAMAGIC :=
 206 MAGIC := $(sort $(patsubst ./%,%,$(wildcard $(THISDIR)/magic/*)) $(EXTRAMAGIC))
 207
 208 # The list of depedencies for parsers.
 209 #
 210 # When these files change, the assumption is that the result of the parsers will change as well, even if the parsers themselves have not.
 211 EXTRAPARSERLIBS :=
 212 PARSERLIBS := $(sort $(THISDIR)/lib/split.xslt $(EXTRAPARSERLIBS))
 213
 214 # The list of parsers for plaintext file types.
 215 #
 216 # Which parsers are provided will influence which kinds of files are recognized as plaintext.
 217 EXTRAPARSERS :=
 218 PARSERS := $(sort $(patsubst ./%,%,$(wildcard $(THISDIR)/parsers/*.xslt)) $(EXTRAPARSERS))
 219
 220 # The list of depedencies for transforms.
 221 #
 222 # When these files change, the assumption is that the result of the transforms will change as well, even if the transforms themselves have not.
 223 EXTRATRANSFORMLIBS :=
 224 TRANSFORMLIBS := $(sort $(THISDIR)/lib/serialize.xslt $(EXTRATRANSFORMLIBS))
 225
 226 # The list of transforms.
 227 EXTRATRANSFORMS :=
 228 TRANSFORMS := $(sort $(patsubst ./%,%,$(wildcard $(THISDIR)/transforms/*.xslt)) $(EXTRATRANSFORMS))
 229
 230 # List of types which should be treated as X·M·L.
 231 #
 232 # Types which start with a `+´ are suffixes and match any type which
 233 # ends accordingly.
 234 XMLTYPES := application/xml text/xml +xml
 235
 236 # A program to run on basic X·M·L files after they are transformed.
 237 FINALIZE := $(XMLLINT) --nonet --nsclean
 238
 239 ifdef GIT
 240 ifneq ($(wildcard $(THISDIR)/.git),)
 241 # A description of the current git revision of ⛩📰 书社.
 242 THISREV := $(shell $(CD) $(THISDIR); $(GIT) describe 2>>/dev/null || $(GIT) rev-parse HEAD 2>>/dev/null || :)
 243 endif
 244
 245 ifneq ($(wildcard .git),)
 246 # A description of the current git revision of the working directory.
 247 SRCREV := $(shell $(GIT) describe 2>>/dev/null || $(GIT) rev-parse HEAD 2>>/dev/null || :)
 248 endif
 249 endif
 250
 251 # The mode in which to run this make·file.
 252 # Modes essentially allow for the combination of multiple conceptual make·files into a single source.
 253 #
 254 # The following modes are available :—
 255 #
 256 # • ‹ urn:fdc:ladys.computer:20231231:Shu1She4:mode:default ›:
 257 #   The default mode; typical ⛩📰 书社 behaviours.
 258 #
 259 # • ‹ urn:fdc:ladys.computer:20231231:Shu1She4:mode:archive ›:
 260 #   Generates archive files from parse results.
 261 #
 262 # • ‹ urn:fdc:ladys.computer:20231231:Shu1She4:mode:initial ›:
 263 #   The initial mode that this make·file starts in; this builds the magic file and parsers and then recursively calls into the default mode to build the files.
 264 MODE := urn:fdc:ladys.computer:20231231:Shu1She4:mode:initial
 265
 266 # Set to a non·empty value to silence informative messages.
 267 QUIET :=
 268
 269 # Set to a non·empty value to print all commands as they run.
 270 VERBOSE :=
 271
 272 # Posix locale information.
 273 LC_ALL := C
 274 export LC_ALL
 275
 276 # Posix timezone information.
 277 TZ := UTC0
 278 export UTC0
 279
 280 # The default target for this makefile.
 281 .DEFAULT_GOAL := all
 282
 283 # Flags for use when calling the shell.
 284 #
 285 # `-e` enables early exit from invocations of multiple commands after
 286 # the first failure.
 287 .SHELLFLAGS := -c -e
 288
 289 # ━ § BEGIN SHARED MAKE·FILE CONSTRUCTS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 290
 291 # ─ ¶ Non‐Recipe Variable Definitions ─────────────────────────────────
 292
 293 # A variable with no value, usable when assigning values which contain whitespace.
 294 override empty :=
 295
 296 # A variable which contains a newline, to allow the generation of multiline strings in function calls.
 297 override define newline
 298
 299
 300 endef
 301
 302 # A variable which contains a single space.
 303 override space := $(empty) $(empty)
 304
 305 # A variable which contains a single comma.
 306 override comma := ,
 307
 308 # (callable) Make empty strings non·empty, and non·empty strings empty.
 309 override not = $(if $1,,1)
 310
 311 # (callable) Quote the given string for use within shell calls.
 312 override quote = '$(subst ','"'"',$1)'
 313
 314 # The command to use for percent‐decoding.
 315 override perdeccmd := $(SED) 's/|/%7C/g;s/[\]/%5C/g;s/%[0123456789ABCDEFabcdef]\{2\}/|&|/g' | $(TR) '|' '\n' | $(SED) '/^%[0123456789ABCDEFabcdef]\{2\}$$/!s/%/|%25|/' | $(TR) '|' '\n' | $(AWK) '$$0!~/%/{printf "%s",$$0}/%/{d="0123456789ABCDEF";v=substr(toupper($$0),2,2);printf "\\%04o",(index(d,substr(v,1,1))-1)*16+index(d,substr(v,2,1))-1}' | $(SED) $(call quote,s/'/'"'"'/g;s/^/'/;s/$$/'/;$$!s/$$/\\/) | $(XARGS) -E '' $(PRINTF) '%b'
 316
 317 # (callable) Percent‐decode the given strings.
 318 #
 319 # ☡ This variable creates a subshell every time it is computed.
 320 override perdec = $(shell $(PRINTF) '%s\0450A' $(foreach encoded,$1,$(call quote,$(encoded))) | $(perdeccmd))
 321
 322 # (callable) Percent‐encode the given strings.
 323 #
 324 # This singly‐encodes u·r·i characters and doubly‐encodes other characters, then calls `perdec´ to decode back to a single encoding.
 325 # The encoding assumes the input is a “u·r·i component”; e·g that the resulting string should only contain `pchar´ (but can contain any `sub-delim´).
 326 #
 327 # It is assumed that the given strings do not contain newlines.
 328 #
 329 # ☡ This variable creates a subshell every time it is computed.
 330 override perenc = $(shell $(PRINTF) '%s\n' $(foreach unencoded,$1,$(call quote,$(unencoded))) | $(OD) -t x1 | $(SED) 's/^[0123456789]*//;s/0[Aa]/%&/g;s/2[146789ABCDEabcde]/%&/g;s/3[0123456789AaBbDd]/%&/g;s/40/%&/g;s/[46][123456789ABCDEFabcdef]/%&/g;s/[57][0123456789Aa]/%&/g;s/5[Ff]/%&/g;s/7[Ee]/%&/g;s/[ ][0123456789ABCDEFabcdef]\{2\}/%25&/g' | $(TR) -d ' \n' | $(TR) 'abcdef' 'ABCDEF' | $(perdeccmd))
 331
 332 # (callable) Percent‐encode each component in the given paths.
 333 #
 334 # ☡ This variable creates a subshell every time it is computed.
 335 override pathenc = $(subst %2F,/,$(call perenc,$1))
 336
 337 # (callable) Create a unique name for the given file, based on its absolute path.
 338 #
 339 # ☡ This variable creates a subshell every time it is computed.
 340 namehash = $(shell $(PRINTF) '%s' $(call quote,$(abspath $1)) | $(CKSUM) | $(SED) 's/ .*//' | $(XARGS) -E '' $(PRINTF) '%X')-$(notdir $1)
 341
 342 # The location of this make·file.
 343 override makefile := $(abspath $(THISDIR)/GNUmakefile)
 344
 345 # Non·empty if `help´ or `clean´, and no targets other than `help´ or `clean´, were specified as goals on the commandline.
 346 override notbuilding := $(and $(filter help clean,$(MAKECMDGOALS)),$(call not,$(filter-out help clean,$(MAKECMDGOALS))))
 347
 348 # (callable) Tests to see if the prerequisites provided by the second argument matches the value in the file corresponding to the first argument in `$(BUILDDIR)/lastprereqs´.
 349 # If not, saves the new value.
 350 # Returns the values plus the file in `$(BUILDDIR)/lastprereqs´, which will always be newer than the target if there was a change.
 351 #
 352 # Calling this variable is useful when a given target should be updated whenever its list of prerequisites changes in addition to whenever there is a change to one of its prerequisites.
 353 #
 354 # If `$(notbuilding)´ is non·empty, this variable produces no result to avoid unnecessary work.
 355 #
 356 # ☡ This variable creates at least one subshell every time it is computed.
 357 override diffprereqs = $(if $(notbuilding),,$(and $(subst $(shell $(CAT) $(call quote,$(BUILDDIR)/lastprereqs/$1) 2>>/dev/null || :),,$2),$(shell $(call ensuredirectory,$(BUILDDIR)/lastprereqs) && $(PRINTF) '%s\n' $(call quote,$2) >|$(BUILDDIR)/lastprereqs/$1),)$2 $(BUILDDIR)/lastprereqs/$1)
 358
 359 # ─ ¶ Recipe Variable Definitions ─────────────────────────────────────
 360
 361 # Outputs an `@´ to silence rules, unless `VERBOSE´ is non·empty.
 362 override silent := $(if $(VERBOSE),,@)
 363
 364 # (callable) Only perform the rule if `QUIET` is not set.
 365 override inform = $(if $(QUIET),,@$1)
 366
 367 # (callable) Check to see if the given directory exists and create it if not.
 368 override ensuredirectory = if $(TEST) ! -d $(call quote,$1); then $(MKDIR) -p $(call quote,$1); fi
 369
 370 # Quote standard input in such a way that piping it to xargs will result in it being processed as a single argument.
 371 #
 372 # If standard input ends in a newline, it is stripped; all other newlines are preserved.
 373 override xargsquote := $(SED) $(call quote,s/'/'"'"'/g;s/^/'/;s/$$/'/;$$!s/$$/\\/)
 374
 375 # Quote standard input in such a way that piping it to xargs will result in each line being processed as a single argument.
 376 override xargsmultiquote := $(SED) $(call quote,s/'/'"'"'/g;s/^/'/;s/$$/'/)
 377
 378 # (callable) Test if the provided xpath expression matches the provided document.
 379 override xpath = $(XMLLINT) --noent --nonet --xpath $(call quote,$1) $(call quote,$2) >>/dev/null 2>>/dev/null
 380
 381 # (callable) Get the identifier for the given parser or transform.
 382 override id = $(XMLLINT) --noent --nonet --xpath '/*/*[local-name()="id" and namespace-uri()="urn:fdc:ladys.computer:20231231:Shu1She4"]/text()[1]' $(call quote,$1) 2>>/dev/null || $(PRINTF) '%s\n' $(call quote,about:shushe?$(or $2,unknown)=$(call pathenc,$(basename $(notdir $1))))
 383
 384 # (callable) Extract the value of the text nodes in the provided X·M·L document and print them to `stdout´.
 385 override extracttext = $(PRINTF) '%s' '<transform xmlns="http://www.w3.org/1999/XSL/Transform" version="1.0"><output method="text" encoding="UTF-8"/></transform>' | $(XSLTPROC) --nonet --novalid --nomkdir --nowrite - $(call quote,$1)
 386
 387 # (callable) Process the provided transformation result and output the result to the provided location, given the provided relative path.
 388 override processresultto = if $(call xpath,/*[local-name()="raw-text" and namespace-uri()="urn:fdc:ladys.computer:20231231:Shu1She4"],$1); then $(call extracttext,$1) >|$(call quote,$2); elif $(call xpath,/*[local-name()="base64-binary" and namespace-uri()="urn:fdc:ladys.computer:20231231:Shu1She4"],$1); then { $(PRINTF) '%s\n' 'begin-base64 644 -'; $(call extracttext,$1) | $(TR) -d '\t\n\f\r '; $(PRINTF) '\n%s\n' '===='; } | $(UUDECODE) -o /dev/stdout >|$(call quote,$2); elif $(call xpath,/*[local-name()="archive" and namespace-uri()="urn:fdc:ladys.computer:20231231:Shu1She4"],$1); then $(MAKE) -f $(makefile) NAME=$(call quote,$3) SRC=$(call quote,$1) BUILDDIR=$(call quote,$(BUILDDIR)/archive/$3) DESTDIR=$(call quote,$(patsubst %/,%,$(dir $2))) MODE='urn:fdc:ladys.computer:20231231:Shu1She4:mode:archive' $(call quote,$2); else $(FINALIZE) $(call quote,$1) >|$(call quote,$2); fi
 389
 390 # ━ § BEGIN DEFAULT MAKE·FILE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 391
 392 ifeq ($(MODE),urn:fdc:ladys.computer:20231231:Shu1She4:mode:default)
 393
 394 # ─ ¶ Non‐Recipe Variable Definitions ─────────────────────────────────
 395
 396 # (callable) Escape special characters for use in X·M·L.
 397 override xmlesc = $(subst >,&gt;,$(subst <,&lt;,$(subst &,&amp;,$1)))
 398
 399 # (callable) Escape special characters for use in X·M·L attributes.
 400 override attresc = $(subst ",&quot;,$(call xmlesc,$1))
 401
 402 # (callable) Escape special characters for use in sed regular expressions.
 403 override sedesc = $(subst /,[/],$(subst $$,\$$,$(subst *,\*,$(subst .,\.,$(subst [,\[,$(subst ^,\^,$(subst \,\\,$1)))))))
 404
 405 # (overridable) Collect all of the applicable includes from the includes directory.
 406 sourceincludes := $(if $(and $(INCLUDEDIR),$(wildcard $(INCLUDEDIR))),$(patsubst ./%,%,$(shell $(FIND) $(foreach dir,$(INCLUDEDIR),$(call quote,$(dir))) '(' $(FINDINCLUDERULES) ')' -a -type f -a -print)),)
 407
 408 # (overridable) Collect all of the applicable source files from the source directory, removing any which are also includes.
 409 sourcefiles := $(if $(and $(SRCDIR),$(wildcard $(SRCDIR))),$(filter-out $(sourceincludes),$(patsubst ./%,%,$(shell $(FIND) $(foreach dir,$(SRCDIR),$(call quote,$(dir))) '(' $(FINDRULES) ')' -a -type f -a -print))))
 410
 411 # Figure out the file type of each source file and source include.
 412 ifneq ($(wildcard $(BUILDDIR)/magic.mgc),)
 413 override types := $(shell $(PRINTF) '%s\n' $(call quote,$(sourcefiles) $(sourceincludes)) | $(SED) 's/^ *//;s/ *$$//;s/ {2,}/ /g' | $(TR) ' ' '\n' | $(FILE) -m $(call quote,$(BUILDDIR)/magic.mgc) --mime-type --separator '|' --files-from - | $(SED) 's/| */|/g')
 414 endif
 415
 416 # Get the list of supported plaintext file types from the parser.
 417 ifneq ($(wildcard $(BUILDDIR)/parser.xslt),)
 418 override plaintexttypes := $(filter-out $(XMLTYPES),$(shell $(XMLLINT) --noent --nonet --xpath '/*/*[@name="书社:parsers"]//*[namespace-uri()="http://www.w3.org/1999/xhtml" and local-name()="dd"]/text()' $(call quote,$(BUILDDIR)/parser.xslt)))
 419 endif
 420
 421 # (callable) Get all of the files (source and includes) which have the provided types.
 422 #
 423 # If a provided type begins with a `+´, it is analysed as a suffix, and all matching types will be used.
 424 override filesoftype = $(foreach typeorsuffix,$1,$(foreach type,$(if $(filter +%,$(typeorsuffix)),$(sort $(foreach suffixedtype,$(filter %$(typeorsuffix),$(types)),$(lastword $(subst |, ,$(suffixedtype))))),$(typeorsuffix)),$(patsubst %|$(type),%,$(filter %|$(type),$(types)))))
 425
 426 # Build up collections of various file types.
 427 override xmlfiles := $(call filesoftype,$(XMLTYPES))
 428 override plaintextfiles := $(filter-out $(xmlfiles),$(call filesoftype,$(plaintexttypes)))
 429 override assetfiles := $(filter-out $(xmlfiles) $(plaintextfiles),$(sourcefiles) $(sourceincludes))
 430
 431 # (callable) Get the types of the given files.
 432 override typeoffile = $(foreach file,$1,$(or $(patsubst $(file)|%,%,$(filter $(file)|%,$(types))),application/octet-stream))
 433
 434 # (callable) Get the local path for the given source file.
 435 override sourcepath = $(or $(firstword $(foreach directory,$(SRCDIR),$(if $(filter .,$(directory)),$(wildcard $1),$(if $(filter $(directory)/%,$1),$(patsubst $(directory)/%,%,$1),)))),$(error Unable to get local path for source file `$1´))
 436
 437 # (callable) Get the local path for the given include.
 438 override includepath = $(or $(firstword $(foreach directory,$(INCLUDEDIR),$(if $(filter .,$(directory)),$(wildcard $1),$(if $(filter $(directory)/%,$1),$(patsubst $(directory)/%,%,$1),)))),$(error Unable to get local path for include file `$1´))
 439
 440 # (callable) Get base64 data u·r·i’s for the given files.
 441 #
 442 # ☡ This variable creates a subshell every time it is computed.
 443 override datauri = $(foreach file,$1,data:$(call typeoffile,$(file));base64,$(shell $(UUENCODE) -m $(call quote,$(file)) _ | $(SED) '2,$$!d;$$d' | $(TR) -d ' \n'))
 444
 445 # Pair each source file and include with its local u·r·i.
 446 override sourcelocalpair := $(foreach file,$(sourcefiles) $(sourceincludes),$(file)|about:shushe?$(if $(filter $(file),$(sourceincludes)),include=$(call pathenc,$(call includepath,$(file))),source=$(call pathenc,$(call sourcepath,$(file)))))
 447
 448 # (callable) Get local uris for the given files.
 449 override localuri = $(foreach file,$1,$(patsubst $(file)|%,%,$(filter $(file)|%,$(sourcelocalpair))))
 450
 451 # (callable) Get the source files for the given local uris.
 452 override sourcefile = $(foreach local,$1,$(patsubst %|$(local),%,$(filter %|$(local),$(sourcelocalpair))))
 453
 454 # Resolves to the `FORCE´ target if `$(BUILDDIR)/.update-types´ is present.
 455 #
 456 # This file is created before a reload due to type changes, and is removed after.
 457 # This ensures that file classifications are up·to·date immediately after the reload.
 458 override typeupdates := $(and $(wildcard $(BUILDDIR)/.update-types),FORCE)
 459
 460 # Pair each source file and include with its metadata location.
 461 override sourcemetadatapair := $(foreach file,$(sourcefiles) $(sourceincludes),$(file)|$(BUILDDIR)/$(if $(filter $(file),$(sourceincludes)),includes.metadata/$(call includepath,$(file)),sources.metadata/$(call sourcepath,$(file))))
 462
 463 # (callable) Get the location of the transformed X·M·L files for the given source files.
 464 override metadata = $(foreach file,$1,$(patsubst $(file)|%,%,$(filter $(file)|%,$(sourcemetadatapair))))
 465
 466 # (callable) Get the source files for the given parsed file.
 467 override datadata = $(foreach file,$1,$(patsubst %|$(file),%,$(filter %|$(file),$(sourcemetadatapair))))
 468
 469 # Pair each source file and include with its parsed location.
 470 override sourceparsedpair := $(foreach file,$(sourcefiles) $(sourceincludes),$(file)|$(BUILDDIR)/$(if $(filter $(file),$(sourceincludes)),includes/$(call includepath,$(file)),sources/$(call sourcepath,$(file))))
 471
 472 # (callable) Get the location of the transformed X·M·L files for the given source files.
 473 override parsed = $(foreach file,$1,$(patsubst $(file)|%,%,$(filter $(file)|%,$(sourceparsedpair))))
 474
 475 # (callable) Get the source files for the given parsed file.
 476 override unparsed = $(foreach file,$1,$(patsubst %|$(file),%,$(filter %|$(file),$(sourceparsedpair))))
 477
 478 # Pair each build directory, transform, source file, or parsed file with its file u·r·i.
 479 override fileuripairs := $(join $(patsubst %,%|,$(BUILDDIR) $(TRANSFORMS) $(sourcefiles) $(sourceincludes) $(call parsed,$(sourcefiles) $(sourceincludes))),$(call pathenc,$(foreach uriable,$(BUILDDIR) $(TRANSFORMS) $(sourcefiles) $(sourceincludes) $(call parsed,$(sourcefiles) $(sourceincludes)),file://$(abspath $(uriable)))))
 480
 481 # (callable) Get the file u·r·is for the given transforms, source file or parsed files.
 482 override fileuri = $(foreach file,$1,$(or $(patsubst $(file)|%,%,$(filter $(file)|%,$(fileuripairs))),$(error Unable to get file u·r·i for `$(file)´)))
 483
 484 ifneq ($(wildcard $(BUILDDIR)/dependencies),)
 485 # Pair each file with a list of dependencies for it.
 486 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))))
 487
 488 # (callable) Get the list of dependency leiris for the given source files.
 489 #
 490 # Recursive dependencies are marked with a leading `-´.
 491 override dependencyuris = $(foreach file,$1,$(subst |, ,$(patsubst $(file)|%,%,$(filter $(file)|%,$(dependenciesforfile)))))
 492
 493 # (callable) Get the list of recursive dependencies for the given source files.
 494 #
 495 # If the file cannot have dependencies (e·g is an asset file), the resulting value will be the empty string.
 496 override recursives = $(foreach uri,$(filter -%,$(call dependencyuris,$1)),$(call sourcefile,$(patsubst -%,%,$(uri))))
 497
 498 # (callable) Get the list of (nonrecursive) dependencies for the given source files.
 499 #
 500 # If the file cannot have dependencies (e·g is an asset file), the resulting value will be the empty string.
 501 override dependencies = $(foreach uri,$(filter-out -%,$(call dependencyuris,$1)),$(call sourcefile,$(uri)))
 502 endif
 503
 504 # Collect all files with recursive dependencies.
 505 override recursivefiles := $(foreach file,$(filter-out $(assetfiles),$(sourcefiles)),$(if $(call recursives,$(file)),$(file),))
 506
 507 # Collect all files which should be compiled.
 508 #
 509 # This is all of the non·asset, nonrecursive files.
 510 override compilablefiles := $(filter-out $(assetfiles) $(recursivefiles),$(sourcefiles))
 511
 512 # Collect all files which can be installed.
 513 #
 514 # This is all of the comilable files and all asset sources.
 515 override installablefiles := $(compilablefiles) $(filter $(assetfiles),$(sourcefiles))
 516
 517 ifneq ($(wildcard $(BUILDDIR)/destinations),)
 518 # Get the output of the destination transform.
 519 override destinations := $(shell $(CAT) $(BUILDDIR)/destinations)
 520
 521 # Pair source files and their destinations.
 522 override sourcedestinationpair := $(foreach destination,$(destinations),$(call sourcefile,$(firstword $(subst |, ,$(destination))))|$(subst $(space),|,$(wordlist 2,$(words $(subst |, ,$(destination))),$(subst |, ,$(destination)))))
 523 endif
 524
 525 # (callable) Get the destination for the given source files, or return `.NOTDEF/$1´.
 526 #
 527 # The fallback here is because destinations are used to generate targets and thus must always be non·empty and should be unique, even when they haven’t been generated yet.
 528 override destination = $(foreach file,$1,$(or $(patsubst $(file)|%,%,$(filter $(file)|%,$(sourcedestinationpair))),.NOTDEF/$1))
 529
 530 # Pair each source file with its compiled location.
 531 override sourcecompiledpair := $(foreach file,$(sourcefiles),$(file)|$(BUILDDIR)/results/$(call destination,$(file)))
 532
 533 # (callable) Get the location of the transformed X·M·L files for the given source files.
 534 override compiled = $(foreach file,$1,$(patsubst $(file)|%,%,$(filter $(file)|%,$(sourcecompiledpair))))
 535
 536 # (callable) Get the location of the source files for the given compiled file.
 537 override uncompiled = $(foreach file,$1,$(patsubst %|$(file),%,$(filter %|$(file),$(sourcecompiledpair))))
 538
 539 # (callable) Get the location of the final built files for the given source files.
 540 override built = $(foreach file,$1,$(patsubst $(BUILDDIR)/results/%,$(BUILDDIR)/public/%,$(call compiled,$(file))))
 541
 542 # (callable) Get the location of the source files for the given built files.
 543 override unbuilt = $(foreach file,$1,$(call uncompiled,$(patsubst $(BUILDDIR)/public/%,$(BUILDDIR)/results/%,$(file))))
 544
 545 # (callable) Get the installed locations for the given source files.
 546 override installed = $(foreach file,$1,$(DESTDIR)/$(call destination,$(file)))
 547
 548 # ─ ¶ Recipe Variable Definitions ─────────────────────────────────────
 549
 550 # (callable) Sanitize and wrap the provided plaintext file in X·M·L, printing to `stdout´.
 551 override wrapplaintext = { $(PRINTF) '%s\n%s' '<?xml version="1.0"?>' '<script xmlns="http://www.w3.org/1999/xhtml" type="$(call typeoffile,$1)"><![CDATA['; $(TR) '\000\013\014' '\032\011\012' <$(call quote,$1) | $(SED) "$$($(PRINTF) '%b' 's/]]>/]]]]><!\\[CDATA\\[>/g\ns/\0357\0277\0276/�/g\ns/\0357\0277\0277/�/g\n$$!s/\\r$$//g\ns/\\r/\\n/g\n$$!s/\0302\0205$$//g\ns/\0302\0205/\\n/g\ns/\0342\0200\0250/\\n/g\ns/[\0001\0002\0003\0004\0005\0006\0007\0010]/�/g\ns/[\0016\0017\0020\0021\0022\0023\0024\0025\0026\0027\0031\0032\0033\0034\0035\0036\0037]/�/g')"; $(PRINTF) '%s\n' ']]></script>'; }
 552
 553 # (callable) Check if the provided X·M·L file is X·M·L 1.1, and if so, coerce to X·M·L 1.0 as best as possible, printing the result (or the original file contents) to `stdout´.
 554 #
 555 # The X·M·L declaration will be dropped and character escapes for C0 control codes will be replaced with a literal `U+0091 PRIVATE USE ONE´, which is invalid in X·M·L 1.1, but valid X·M·L 1.0 (making the replacement obvious).
 556 #
 557 # This isn’t a perfect substitution (it makes some assumptions about the format of the underlying X·M·L), but it should be workable for most sensible, welformed files.
 558 override serializexml = $(SED) "$$($(PRINTF) '%b' '/<?xml[ \t]\\{1,\\}version=[\0042\0047]1.1/,$${ s/<?xml[^>]*?>/<!--<?xml version=\00421.1\0042?>-->/\n s/&\0043x0*[12345678BCEFbcef];/\0302\0221/g\n s/&\0043x0*1[0123456789ABCDEFabcdef];/\0302\0221/g\n s/&\00430*[12345678];/\0302\0221/g\n s/&\00430*1[12456789];/\0302\0221/g\n s/&\00430*2[0123456789];/\0302\0221/g\n s/&\00430*3[01];/\0302\0221/g\n}')" <$(call quote,$1) | $(SED) "$$($(PRINTF) '%b' ':a\n/^\\n*$$/{ $$d\n N\n ba\n}')"
 559
 560 # ─ ¶ Phony Targets ───────────────────────────────────────────────────
 561
 562 # Compile all files, or error if any are recursive.
 563 all : $(call built,$(recursivefiles) $(installablefiles)) ;
 564
 565 # Install the compiled files into `DESTDIR´, or error if any are recursive.
 566 install : $(call installed,$(recursivefiles) $(installablefiles)) ;
 567
 568 # List all source files and includes and their computed types.
 569 list :
 570         @$(PRINTF) '%b' $(call quote,$(foreach file,$(sort $(sourcefiles)) $(sort $(sourceincludes)),\0033[1m$(file)\0033[22m|$(call typeoffile,$(file))|[\0033[3m$(if $(filter $(file),$(xmlfiles)),xml,$(if $(filter $(file),$(plaintextfiles)),text,asset))$(if $(filter $(file),$(sourceincludes)),|include,)\0033[23m]$(if $(call dependencies,$(file))$(call recursives,$(file)), $(strip $(foreach recursive,$(call recursives,$(file)),\0033[93;41m•|Recursive|Dependency|\0033[39;49m|$(recursive)) $(foreach dependency,$(call dependencies,$(file)),\0033[2m•|Dependency|\0033[22m|$(dependency))))$(if $(filter $(file),$(sourcefiles)), →|<\0033[4m/$(call destination,$(file))\0033[24m>,) )) | $(TR) ' |' '\n '
 571
 572 # Lists out the destinations of all resulting files (relative to `DESTDIR´).
 573 listout :
 574         @$(PRINTF) '%s\n' $(call quote,$(foreach file,$(sort $(sourcefiles)),$(call destination,$(file))))
 575
 576 # Destroy installed files.
 577 uninstall :
 578         $(foreach file,$(installablefiles),$(if $(wildcard $(call installed,$(file))),$(silent)$(PRINTF) '%s\n' $(call quote,Removing </$(patsubst $(DESTDIR)/%,%,$(call installed,$(file)))>…)$(newline)$(silent)$(RM) -f -R $(call quote,$(call installed,$(file)))$(newline),))
 579
 580 # Raise an error when attempting to build any files with recursive dependencies.
 581 $(call built,$(recursivefiles)) :
 582         @$(PRINTF) '%b\n' $(call quote,\0033[93;41mError:\0033[39;49m `$(call unbuilt,$@)´ has recursive dependencies:\n$(subst |, ,$(subst $(space),$(newline),$(foreach recursive,$(call recursives,$(call unbuilt,$@)),•|$(recursive))))) >&2 && exit 1
 583
 584 # Add as a prerequisite to treat the target as tho it were phony.
 585 FORCE : ;
 586
 587 # ─ ¶ Special Targets ─────────────────────────────────────────────────
 588
 589 # Perform secondary expansion; this enables pattern rules to determine their prerequisites based on the matched pattern.
 590 .SECONDEXPANSION : ;
 591
 592 # Don’t use any implicit rules.
 593 .SUFFIXES : ;
 594
 595 # Don’t delete these files even if Make is stopped in the process of rebuilding them.
 596 .PRECIOUS : $(THISDIR)/GNUmakefile ;
 597
 598 # Phony rules; always consider these out·of·date.
 599 .PHONY : FORCE all install list listout uninstall $(call built,$(recursivefiles)) ;
 600
 601 # Reload this make·file if the transform has changed.
 602 #
 603 # This also captures any changes to dependencies or destinations.
 604 $(THISDIR)/GNUmakefile : $(BUILDDIR)/transform.xslt
 605         $(silent)$(TOUCH) $(THISDIR)/GNUmakefile
 606         $(if $(typeupdates),$(silent)$(RM) $(call quote,$(BUILDDIR)/.update-types),)
 607         $(call inform,$(PRINTF) '%b\n' '\0033[1mDependency graph$(comma) output destinations$(comma) and transforms were updated. Restarting…\0033[22m' >&2)
 608
 609 # ─ ¶ Build Targets ───────────────────────────────────────────────────
 610
 611 # Generate R·D·F metadata for files.
 612 $(call metadata,$(sourcefiles) $(sourceincludes)) : % : $$(call datadata,$$@) $(THISDIR)/.metadata-format-changed-since $(typeupdates)
 613         $(call inform,$(PRINTF) '%s\n' $(call quote,Generating metadata for `$<´…) >&2)
 614         $(silent)$(call ensuredirectory,$(dir $@))
 615         $(silent){ if $(TEST) ! -f $(call quote,$(BUILDDIR)/.mtime); then $(PRINTF) '%b' '\n' >|$(call quote,$(BUILDDIR)/.mtime); fi; $(TOUCH) -r $(call quote,$<) $(call quote,$(BUILDDIR)/.mtime); $(DIFF) -u $(call quote,$(BUILDDIR)/.mtime) /dev/null | $(SED) '1!d;s/.*   \([^ ]*\) \([^ ]*\).*$$/\1T\2Z/'; $(CKSUM) $(call quote,$<) | $(SED) 's/[ ].*//'; } | $(xargsmultiquote) | $(XARGS) -E '' $(PRINTF) '<?xml version="1.0"?><书社vocab:$(if $(filter $<,$(sourceincludes)),IncludeFile,SourceFile) xmlns:nie="http://www.semanticdesktop.org/ontologies/2007/01/19/nie#" xmlns:nfo="http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:书社vocab="urn:fdc:ladys.computer:20231231:Shu1She4:vocab:" rdf:about="%s" 书社vocab:path="%s" nfo:fileUrl="%s"><nie:interpretedAs>$(if $(filter $<,$(assetfiles)),<nfo:InformationElement nie:mimeType="%s"/>,<nfo:PlainTextDocument nie:mimeType="%s"/>)</nie:interpretedAs><书社vocab:hasParsedFile nfo:fileUrl="%s"/><nfo:fileLastModified rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">%s</nfo:fileLastModified><nfo:hasHash nfo:hashAlgorithm="CRC32" nfo:hashValue="%s"/></书社vocab:$(if $(filter $<,$(sourceincludes)),IncludeFile,SourceFile)>' $(call quote,$(call attresc,$(call localuri,$<))) $(call quote,$(call attresc,$(if $(filter $<,$(sourceincludes)),$(call includepath,$<),$(call sourcepath,$<)))) $(call quote,$(call attresc,$(call fileuri,$<))) $(call quote,$(call attresc,$(call typeoffile,$<))) $(call quote,$(call attresc,$(call fileuri,$(call parsed,$<)))) >|$(call quote,$@)
 616
 617 # Parse the files.
 618 #
 619 # Even plain X·M·L files are parsed, because they may contain X·H·T·M·L `<script>´ elements which contain other kinds of data.
 620 # Asset files are turned into H·T·M·L embeds pointing to `data:´ U·R·I’s.
 621 $(call parsed,$(sourcefiles) $(sourceincludes)) : % : $$(call unparsed,$$@) $(BUILDDIR)/parser.xslt $(PARSERLIBS) $(typeupdates)
 622         $(call inform,$(PRINTF) '%s\n' $(call quote,Processing `$<´…) >&2)
 623         $(silent)$(call ensuredirectory,$(dir $@))
 624         $(silent)$(if $(filter $<,$(assetfiles)),$(PRINTF) '%s\n' $(call quote,<?xml version="1.0"?><object xmlns="http://www.w3.org/1999/xhtml" type="$(call typeoffile,$<)" data="$(call datauri,$<)"/>) >|$(call quote,$@),$(if $(filter $<,$(plaintextfiles)),$(call wrapplaintext,$<),$(call serializexml,$<)) | $(XSLTPROC) --nonet --novalid --nomkdir --nowrite --stringparam BUILDTIME $$($(DATE) -u '+%Y-%m-%dT%H:%M:%SZ') --stringparam IDENTIFIER $(call quote,$(call localuri,$<))$(if $(THISREV), --stringparam THISREV $(call quote,$(THISREV)),)$(if $(SRCREV), --stringparam SRCREV $(call quote,$(SRCREV)),) $(call quote,$(BUILDDIR)/parser.xslt) - >|$(call quote,$@))
 625
 626 # Collect the metadata into a single file, and generate the dependencies and destinations files as side·effects.
 627 #
 628 # Doing this all in one step reduces the number of calls to `xsltproc´ required, but requires that it be called from the build directory (necessitating a subshell).
 629 $(BUILDDIR)/dependencies $(BUILDDIR)/destinations $(BUILDDIR)/metadata : $(call diffprereqs,metadatas,$(call metadata,$(sort $(sourcefiles) $(sourceincludes)))) $(call parsed,$(filter-out $(assetfiles),$(sourcefiles) $(sourceincludes))) $(THISDIR)/lib/expandmetadata.xslt
 630         $(call inform,$(PRINTF) '%s\n' 'Compiling metadata…' >&2)
 631         $(silent){ $(PRINTF) '<?xml version="1.0"?><rdf:RDF xmlns:nie="http://www.semanticdesktop.org/ontologies/2007/01/19/nie#" xmlns:nfo="http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:书社vocab="urn:fdc:ladys.computer:20231231:Shu1She4:vocab:"><书社vocab:BuildDirectory nfo:fileUrl="%s"/>' $(call quote,$(call attresc,$(call fileuri,$(BUILDDIR)))); {$(foreach meta,$(call metadata,$(sort $(sourcefiles) $(sourceincludes))), $(CAT) $(call quote,$(meta));) } | $(SED) 's/<?xml version="1.0"?>//g'; $(PRINTF) '%s\n' '</rdf:RDF>'; } | ( $(CD) $(call quote,$(BUILDDIR)); $(XSLTPROC) --nonet --novalid --nomkdir $(call quote,$(abspath $(THISDIR)/lib/expandmetadata.xslt)) - ) | $(XMLLINT) --nonet --nsclean - >|$(call quote,$(BUILDDIR)/metadata)
 632
 633 # Generate the main transform.
 634 #
 635 # Because this depends on the metadata, it will also update the dependencies and destinations.
 636 $(BUILDDIR)/transform.catalog : $(call diffprereqs,transforms,$(sort $(TRANSFORMS)))
 637         $(call inform,$(PRINTF) '%s\n' 'Generating catalog of transforms…' >&2)
 638         $(silent)$(XMLCATALOG) --create --noout $(call quote,$@)
 639         $(foreach transform,$(TRANSFORMS),$(silent){ $(call id,$(transform)); $(PRINTF) '%s\n' $(call quote,$(call fileuri,$(transform))) '--noout' $(call quote,$@); } | $(xargsmultiquote) | $(XARGS) -E '' $(XMLCATALOG) --add uri$(newline))
 640 $(BUILDDIR)/transform.xslt : $(BUILDDIR)/transform.catalog $(BUILDDIR)/metadata $(THISDIR)/lib/literally.xslt $(THISDIR)/lib/catalog2transform.xslt
 641         $(call inform,$(PRINTF) '%s\n' 'Generating main transform…' >&2)
 642         $(silent)$(XSLTPROC) --nonet --novalid --nomkdir --nowrite --stringparam METADATA $(call quote,$(call fileuri,$(BUILDDIR))/metadata) $(call quote,$(THISDIR)/lib/catalog2transform.xslt) $(call quote,$<) >|$(call quote,$@)
 643
 644 # Compile the result files using the dependencies as necessary.
 645 #
 646 # Altho this (obviously) depends on the main transform, it is not listed as a prerequisite (rather, the main transform is listed as a prerequisite for the make·file writ large). This is because the transform will update after every metadata change (i·e, basically constantly), but compiled files should only actually be updated in two cases :⁠—
 647 #
 648 # • When one of the actual transforms are updated (tracked by `transform.catalog´), and
 649 # • When the metadata of ⹐source files they depend on⹑ change.
 650 #
 651 # This is to reduce the number of needless regenerations of files with no substantial change.
 652 $(call compiled,$(compilablefiles)) : $(BUILDDIR)/results/% : $$(call parsed,$$(call uncompiled,$$@)) $$(call parsed,$$(call dependencies,$$(call uncompiled,$$@))) $(BUILDDIR)/transform.catalog $(TRANSFORMLIBS) $$(call metadata,$$(call dependencies,$$(call uncompiled,$$@)))
 653         $(call inform,$(PRINTF) '%s\n' $(call quote,Compiling </$*>…) >&2)
 654         $(silent)$(call ensuredirectory,$(dir $@))
 655         $(silent)$(XSLTPROC) --nonet --novalid --nomkdir --nowrite --stringparam METADATA 'metadata' --stringparam BUILDTIME $$($(DATE) -u '+%Y-%m-%dT%H:%M:%SZ') --stringparam IDENTIFIER $(call quote,$(call localuri,$(call uncompiled,$@)))$(if $(THISREV), --stringparam THISREV $(call quote,$(THISREV)),)$(if $(SRCREV), --stringparam SRCREV $(call quote,$(SRCREV)),) $(call quote,$(BUILDDIR)/transform.xslt) $(call quote,$<) >|$(call quote,$@)
 656
 657 # Create the final files from the compiled results (or error in the case of recursive ones).
 658 $(call built,$(compilablefiles)) : $(BUILDDIR)/public/% : $(BUILDDIR)/results/%
 659         $(call inform,$(PRINTF) '%s\n' $(call quote,Building </$*>…) >&2)
 660         $(silent)$(call ensuredirectory,$(dir $@))
 661         $(silent)$(RM) -f -R $(call quote,$@)
 662         $(silent)$(call processresultto,$<,$@,$*)
 663 $(call built,$(filter $(assetfiles),$(sourcefiles))) : $(BUILDDIR)/public/% : $$(call unbuilt,$$@)
 664         $(call inform,$(PRINTF) '%s\n' $(call quote,Building </$*>…) >&2)
 665         $(silent)$(call ensuredirectory,$(dir $@))
 666         $(silent)$(RM) -f -R $(call quote,$@)
 667         $(silent)$(CP) $(call quote,$<) $(call quote,$@)
 668
 669 # Install compiled files (or error in the case of recursive ones).
 670 $(call installed,$(recursivefiles) $(installablefiles)) : $(DESTDIR)/% : $(BUILDDIR)/public/%
 671         $(call inform,$(PRINTF) '%s\n' $(call quote,Installing </$*>…) >&2)
 672         $(silent)$(call ensuredirectory,$(dir $@))
 673         $(silent)$(RM) -f -R $(call quote,$@)
 674         $(silent)$(CP) -R $(call quote,$<) $(call quote,$@)
 675
 676 # ━ § BEGIN ARCHIVE MAKE·FILE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 677
 678 else ifeq ($(MODE),urn:fdc:ladys.computer:20231231:Shu1She4:mode:archive)
 679
 680 # ─ ¶ Non‐Recipe Variable Definitions ─────────────────────────────────
 681
 682 # Get the list of files in the archive.
 683 ifneq ($(wildcard $(BUILDDIR)/index),)
 684 override archivefiles := $(patsubst ./extracted/%,%,$(shell $(CAT) $(call quote,$(BUILDDIR)/index)))
 685 endif
 686
 687 # ─ ¶ Recipe Variable Definitions ─────────────────────────────────────
 688
 689 # ─ ¶ Phony Targets ───────────────────────────────────────────────────
 690
 691 # ─ ¶ Special Targets ─────────────────────────────────────────────────
 692
 693 # Don’t use any implicit rules.
 694 .SUFFIXES : ;
 695
 696 # Don’t delete these files even if Make is stopped in the process of rebuilding them.
 697 .PRECIOUS : $(THISDIR)/GNUmakefile ;
 698
 699 # Reload this make·file if the archive components have changed.
 700 $(THISDIR)/GNUmakefile : $(BUILDDIR)/index
 701         $(silent)$(TOUCH) $(THISDIR)/GNUmakefile
 702         $(call inform,$(PRINTF) '%b\n' $(call quote,\0033[1mArchive components for </$(NAME)> updated. Restarting…\0033[22m) >&2)
 703
 704 # ─ ¶ Build Targets ───────────────────────────────────────────────────
 705
 706 # Build the extractor transform for extracting the contents of the archive source file.
 707 $(BUILDDIR)/extractor.xslt : $(SRC) $(THISDIR)/lib/archive2extractor.xslt
 708         $(silent)$(call ensuredirectory,$(dir $@))
 709         $(silent)$(XSLTPROC) --nonet --novalid --nomkdir --nowrite $(call quote,$(THISDIR)/lib/archive2extractor.xslt) $(call quote,$<) >|$(call quote,$@)
 710
 711 # Use the extractor transform to extract the archive source file out into its components.
 712 #
 713 # This target sleeps for 1 second to ensure the resulting index will always be newer than this make·file.
 714 #
 715 # If the archive is empty, the index will not be written by `xsltproc´ and will need to be manually created.
 716 $(BUILDDIR)/index : $(BUILDDIR)/extractor.xslt $(SRC)
 717         $(call inform,$(PRINTF) '%s\n' $(call quote,Extracting components for </$(NAME)>…) >&2)
 718         $(silent)$(SLEEP) 1
 719         $(silent)$(XSLTPROC) --nonet --novalid -o $(call quote,$@) --writesubtree $(call quote,$(dir $@)) $(call quote,$<) $(call quote,$(SRC))
 720         $(silent)if $(TEST) ! -e $(call quote,$@); then $(TOUCH) $(call quote,$@); fi
 721
 722 # All archive components are extracted alongside the index.
 723 $(foreach file,$(archivefiles),$(BUILDDIR)/extracted/$(file)) : $(BUILDDIR)/index ;
 724
 725 # Process each extractor component into its final form.
 726 $(foreach file,$(archivefiles),$(BUILDDIR)/files/$(file)) : $(BUILDDIR)/files/% : $(BUILDDIR)/extracted/%
 727         $(call inform,$(PRINTF) '%s\n' $(call quote,Building </$(NAME)/$*>…) >&2)
 728         $(silent)$(call ensuredirectory,$(dir $@))
 729         $(silent)$(RM) -f -R $(call quote,$@)
 730         $(silent)$(call processresultto,$<,$@,$*)
 731
 732 # Archive all components in the file to the destination.
 733 #
 734 # This is a match‐anything target, with the assumption that this make·file is being called recursively from the default mode.
 735 $(DESTDIR)/% : $(SRC) $(foreach file,$(archivefiles),$(BUILDDIR)/files/$(file))
 736         $(call inform,$(PRINTF) '%s\n' $(call quote,Archiving </$(NAME)>…) >&2)
 737         $(silent)$(call ensuredirectory,$(dir $@))
 738         $(silent)$(RM) -f -R $(call quote,$@)
 739         $(silent)$(call ensuredirectory,$(BUILDDIR)/files)
 740         $(silent)$(CD) $(call quote,$(BUILDDIR)/files); if $(call xpath,/*/@*[local-name()="expanded" and namespace-uri()="urn:fdc:ladys.computer:20231231:Shu1She4"],$(abspath $<)); then $(MKDIR) -p $(call quote,$(abspath $@)); $(PRINTF) '$(if $(archivefiles),%s\n,)' $(foreach file,$(archivefiles),$(call quote,$(file))) | $(PAX) -r -w $(call quote,$(abspath $@)); else $(PRINTF) '$(if $(archivefiles),%s\n,)' $(foreach file,$(archivefiles),$(call quote,$(file))) | $(PAX) -w -x ustar >|$(call quote,$(abspath $@)); fi
 741
 742 # ━ § BEGIN INITIAL MAKE·FILE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 743
 744 else ifeq ($(MODE),urn:fdc:ladys.computer:20231231:Shu1She4:mode:initial)
 745
 746 # ─ ¶ Non‐Recipe Variable Definitions ─────────────────────────────────
 747
 748 # Non·empty if this is a two‐step build.
 749 override twostep := $(if $(DATADIR),$(shell if $(TEST) -d $(call quote,$(DATADIR)); then $(PRINTF) '%s\n' '1'; fi),)
 750
 751 # Pair each source magic file with its location in the build directory.
 752 override magicpair := $(foreach magicfile,$(MAGIC),$(magicfile)|$(BUILDDIR)/magic/$(call namehash,$(magicfile)))
 753
 754 # (callable) Get the source file for the given magic files.
 755 override magicsource = $(foreach magicpath,$1,$(patsubst %|$(magicpath),%,$(firstword $(filter %|$(magicpath),$(magicpair)))))
 756
 757 # (callable) Get the build file for the given magic files.
 758 override magicfile = $(foreach file,$1,$(patsubst $(file)|%,%,$(filter $(file)|%,$(magicpair))))
 759
 760 # Pair each parser with its file u·r·i.
 761 override fileuripairs := $(join $(patsubst %,%|,$(PARSERS)),$(call pathenc,$(foreach uriable,$(PARSERS),file://$(abspath $(uriable)))))
 762
 763 # (callable) Get the file u·r·is for the given parsers.
 764 override fileuri = $(foreach file,$1,$(or $(patsubst $(file)|%,%,$(filter $(file)|%,$(fileuripairs))),$(error Unable to get file u·r·i for `$(file)´)))
 765
 766 ifeq ($(twostep),)
 767 # (overridable) Options to use when calling ⛩📰 书社.
 768 shusheopts := MODE='urn:fdc:ladys.computer:20231231:Shu1She4:mode:default'
 769 else
 770 # (overridable) Options to use when calling ⛩📰 书社 the first time.
 771 shushedataopts := INCLUDEDIR=$(call quote,$(DATADIR)) BUILDDIR=$(call quote,$(BUILDDIR)/data) FINDRULES=$(subst $$,$$$$,$(call quote,$(FINDRULES) -a '(' $(FINDDATARULES) ')')) FINDINCLUDERULES=$(subst $$,$$$$,$(call quote,$(FINDINCLUDERULES))) MODE='urn:fdc:ladys.computer:20231231:Shu1She4:mode:default'
 772
 773 # (overridable) Options to use when calling ⛩📰 书社 the second time.
 774 shushesiteopts := INCLUDEDIR=$(call quote,$(INCLUDEDIR) $(BUILDDIR)/data/public) BUILDDIR=$(call quote,$(BUILDDIR)/site) FINDRULES=$(subst $$,$$$$,$(call quote,$(FINDRULES) -a '!' '(' $(FINDDATARULES) ')')) FINDINCLUDERULES=$(subst $$,$$$$,$(call quote,$(FINDINCLUDERULES))) MODE='urn:fdc:ladys.computer:20231231:Shu1She4:mode:default'
 775 endif
 776
 777 # ─ ¶ Recipe Variable Definitions ─────────────────────────────────────
 778
 779 # ─ ¶ Phony Targets ───────────────────────────────────────────────────
 780
 781 ifeq ($(twostep),)
 782 all install list listout uninstall : $(BUILDDIR)/magic.mgc $(BUILDDIR)/parser.xslt
 783         @$(MAKE) -f $(call quote,$(makefile)) $@ $(shusheopts)
 784 else
 785 all : $(BUILDDIR)/site/magic.mgc $(BUILDDIR)/site/parser.xslt data
 786         @$(MAKE) -f $(call quote,$(makefile)) $@ $(shushesiteopts)
 787 install uninstall : all
 788         @$(MAKE) -f $(call quote,$(makefile)) $@ $(shushedataopts)
 789         @$(MAKE) -f $(call quote,$(makefile)) $@ $(shushesiteopts)
 790 list : $(BUILDDIR)/site/magic.mgc $(BUILDDIR)/site/parser.xslt data
 791         @$(PRINTF) '%b' $(call quote,\0033[1;7m||Stage|1:||\0033[22;27m\0033[4m||||||||||||||||||||\0033[24m ) | $(TR) ' |' '\n '
 792         @$(MAKE) -f $(call quote,$(makefile)) $@ $(shushedataopts)
 793         @$(PRINTF) '%b' $(call quote, \0033[1;7m||Stage|2:||\0033[22;27m\0033[4m||||||||||||||||||||\0033[24m ) | $(TR) ' |' '\n '
 794         @$(MAKE) -f $(call quote,$(makefile)) $@ $(shushesiteopts)
 795 listout : $(BUILDDIR)/site/magic.mgc $(BUILDDIR)/site/parser.xslt data
 796         @{ $(MAKE) -f $(call quote,$(makefile)) $@ $(shushedataopts); $(MAKE) -f $(call quote,$(makefile)) $@ $(shushesiteopts); } | $(SED) '$$!s/$$/ /' | $(TR) -d '\n'
 797 list1 listout1 : %1 : $(BUILDDIR)/data/magic.mgc $(BUILDDIR)/data/parser.xslt
 798         @$(MAKE) -f $(call quote,$(makefile)) $* $(shushedataopts)
 799 list2 listout2 : %2 : $(BUILDDIR)/site/magic.mgc $(BUILDDIR)/site/parser.xslt data
 800         @$(MAKE) -f $(call quote,$(makefile)) $* $(shushesiteopts)
 801 endif
 802
 803 # Destroy buildfiles.
 804 clean :
 805         $(if $(BUILDDIR),$(silent)$(RM) -f -R $(call quote,$(BUILDDIR)/),)
 806
 807 ifneq ($(twostep),)
 808 # Build the data and remove outdated data files.
 809 data : $(BUILDDIR)/data.out
 810         $(silent)$(FIND) $(call quote,$(BUILDDIR)/data/public) '!' -exec $(GREP) -F -q -x '{}' $(call quote,$<) ';' -a '(' -type d -o -print ')' | $(xargsmultiquote) | $(XARGS) -E '' $(RM)
 811 endif
 812
 813 # Provide help.
 814 help :
 815         @$(PRINTF) '%b' '$(subst $(newline),\n,$(makefileinfo))'
 816
 817 # Destroy build directory and installed files.
 818 gone : uninstall clean ;
 819
 820 # Add as a prerequisite to treat the target as tho it were phony.
 821 FORCE : ;
 822
 823 # ─ ¶ Special Targets ─────────────────────────────────────────────────
 824
 825 # Perform secondary expansion; this enables pattern rules to determine their prerequisites based on the matched pattern.
 826 .SECONDEXPANSION : ;
 827
 828 # Don’t use any implicit rules.
 829 .SUFFIXES : ;
 830
 831 # Phony rules; always consider these out·of·date.
 832 .PHONY : FORCE all clean gone install list listout uninstall$(if $(DATADIR), data list1 listout1 list2 listout2,) ;
 833
 834 # ─ ¶ Build Targets ───────────────────────────────────────────────────
 835
 836 # Create symbolic links from the build directory’s store of magic files to their corresponding sources.
 837 $(call magicfile,$(MAGIC)) : $(BUILDDIR)/magic/% : $$(call magicsource,$$@)
 838         $(silent)$(call ensuredirectory,$(dir $@))
 839         $(silent)$(LN) -sf $(call quote,$(realpath $<)) $(call quote,$@)
 840
 841 # Generate the compiled magic file from its sources.
 842 #
 843 # It must be updated if any of the files in the magic directory change.
 844 $(BUILDDIR)/magic.mgc : $(call diffprereqs,magic,$(sort $(call magicfile,$(MAGIC))))
 845         $(foreach outdated,$(filter-out $^,$(wildcard $(BUILDDIR)/magic/*)),$(silent)$(RM) $(call quote,$(outdated))$(newline))
 846         $(call inform,$(PRINTF) '%s\n' 'Compiling new magic…' >&2)
 847         $(silent)$(call ensuredirectory,$(dir $@))
 848         $(silent)$(CD) $(call quote,$(BUILDDIR)) && $(FILE) -C -m $(call quote,$(realpath $(BUILDDIR)/magic))
 849         $(silent)$(TOUCH) $(call quote,$(BUILDDIR)/.update-types)
 850
 851 # Generate the main parser.
 852 $(BUILDDIR)/parser.catalog : $(call diffprereqs,parsers,$(sort $(PARSERS)))
 853         $(call inform,$(PRINTF) '%s\n' 'Generating catalog of parsers…' >&2)
 854         $(silent)$(XMLCATALOG) --create --noout $(call quote,$@)
 855         $(foreach parser,$(PARSERS),$(silent){ $(call id,$(parser)); $(PRINTF) '%s\n' $(call quote,$(call fileuri,$(parser))) '--noout' $(call quote,$@); } | $(xargsmultiquote) | $(XARGS) -E '' $(XMLCATALOG) --add uri$(newline))
 856 $(BUILDDIR)/parser.xslt : $(BUILDDIR)/parser.catalog $(THISDIR)/lib/catalog2parser.xslt
 857         $(call inform,$(PRINTF) '%s\n' 'Generating main parser…' >&2)
 858         $(silent)$(XSLTPROC) --nonet --novalid --nomkdir --nowrite $(call quote,$(THISDIR)/lib/catalog2parser.xslt) $(call quote,$<) >|$(call quote,$@)
 859         $(silent)$(TOUCH) $(call quote,$(BUILDDIR)/.update-types)
 860
 861 ifneq ($(twostep),)
 862 $(BUILDDIR)/data/magic.mgc $(BUILDDIR)/data/parser.xslt : $(BUILDDIR)/data/% : $(BUILDDIR)/$$*
 863         $(silent)$(call ensuredirectory,$(dir $@))
 864         $(silent)$(LN) -sf $(call quote,$(realpath $<)) $(call quote,$@)
 865 $(BUILDDIR)/site/magic.mgc $(BUILDDIR)/site/parser.xslt : $(BUILDDIR)/site/% : $(BUILDDIR)/$$*
 866         $(silent)$(call ensuredirectory,$(dir $@))
 867         $(silent)$(LN) -sf $(call quote,$(realpath $<)) $(call quote,$@)
 868 $(BUILDDIR)/data.out : $(BUILDDIR)/data/magic.mgc $(BUILDDIR)/data/parser.xslt FORCE
 869         @$(MAKE) -f $(call quote,$(makefile)) $(shushedataopts)
 870         @$(MAKE) -s -f $(call quote,$(makefile)) listout QUIET=1 $(shushedataopts) | $(TR) ' ' '\n' | $(xargsmultiquote) | $(XARGS) -E '' $(PRINTF) $(call quote,$(BUILDDIR)/data/public/%s\n) >$(call quote,$(BUILDDIR)/data.out)
 871 endif
 872
 873 ifeq ($(twostep),)
 874 $(BUILDDIR)/lastprereqs/% : ;
 875 $(BUILDDIR)/% : $(BUILDDIR)/magic.mgc $(BUILDDIR)/parser.xslt FORCE
 876         @$(MAKE) -f $(call quote,$(makefile)) $(call quote,$@) $(shusheopts)
 877 $(DESTDIR)/% : $(BUILDDIR)/magic.mgc $(BUILDDIR)/parser.xslt FORCE
 878         @$(MAKE) -f $(call quote,$(makefile)) $(call quote,$@) $(shusheopts)
 879 else
 880 $(BUILDDIR)/data/% : $(BUILDDIR)/data/magic.mgc $(BUILDDIR)/data/parser.xslt FORCE
 881         @$(MAKE) -f $(call quote,$(makefile)) $(call quote,$@) $(shushedataopts)
 882 $(BUILDDIR)/site/% : $(BUILDDIR)/site/magic.mgc $(BUILDDIR)/site/parser.xslt data
 883         $(silent)$(call ensuredirectory,$(dir $@))
 884         @$(MAKE) -f $(call quote,$(makefile)) $(call quote,$@) $(shushesiteopts)
 885 $(DESTDIR)/% : $(BUILDDIR)/site/magic.mgc $(BUILDDIR)/site/parser.xslt data
 886         @$(MAKE) -f $(call quote,$(makefile)) $(call quote,$@) $(if $(shell $(GREP) -F -x $(call quote,$(BUILDDIR)/data/$*) $(BUILDDIR)/data.out),$(shushedataopts),$(shushesiteopts))
 887 endif
 888
 889 # ━ § END DEFINED MAKE·FILE MODES ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 890
 891 else
 892 $(error Unrecognized MODE: $(MODE))
 893 endif