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author | David Robillard <d@drobilla.net> | 2018-09-15 14:51:02 +0200 |
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committer | David Robillard <d@drobilla.net> | 2018-09-15 14:51:02 +0200 |
commit | eede9648d50c3750f6f8d1319a79dd76d7f10b55 (patch) | |
tree | ff0760d5f3f0e994413c8c1dff7a4fed37914bee /Tools/tex.py | |
download | ingen-eede9648d50c3750f6f8d1319a79dd76d7f10b55.tar.gz ingen-eede9648d50c3750f6f8d1319a79dd76d7f10b55.tar.bz2 ingen-eede9648d50c3750f6f8d1319a79dd76d7f10b55.zip |
Squashed 'waflib/' content from commit 982416b8
git-subtree-dir: waflib
git-subtree-split: 982416b8a6c6728e200243e1be3ab60435c08830
Diffstat (limited to 'Tools/tex.py')
-rw-r--r-- | Tools/tex.py | 543 |
1 files changed, 543 insertions, 0 deletions
diff --git a/Tools/tex.py b/Tools/tex.py new file mode 100644 index 00000000..eaf9fdb5 --- /dev/null +++ b/Tools/tex.py @@ -0,0 +1,543 @@ +#!/usr/bin/env python +# encoding: utf-8 +# Thomas Nagy, 2006-2018 (ita) + +""" +TeX/LaTeX/PDFLaTeX/XeLaTeX support + +Example:: + + def configure(conf): + conf.load('tex') + if not conf.env.LATEX: + conf.fatal('The program LaTex is required') + + def build(bld): + bld( + features = 'tex', + type = 'latex', # pdflatex or xelatex + source = 'document.ltx', # mandatory, the source + outs = 'ps', # 'pdf' or 'ps pdf' + deps = 'crossreferencing.lst', # to give dependencies directly + prompt = 1, # 0 for the batch mode + ) + +Notes: + +- To configure with a special program, use:: + + $ PDFLATEX=luatex waf configure + +- This tool does not use the target attribute of the task generator + (``bld(target=...)``); the target file name is built from the source + base name and the output type(s) +""" + +import os, re +from waflib import Utils, Task, Errors, Logs, Node +from waflib.TaskGen import feature, before_method + +re_bibunit = re.compile(r'\\(?P<type>putbib)\[(?P<file>[^\[\]]*)\]',re.M) +def bibunitscan(self): + """ + Parses TeX inputs and try to find the *bibunit* file dependencies + + :return: list of bibunit files + :rtype: list of :py:class:`waflib.Node.Node` + """ + node = self.inputs[0] + + nodes = [] + if not node: + return nodes + + code = node.read() + for match in re_bibunit.finditer(code): + path = match.group('file') + if path: + found = None + for k in ('', '.bib'): + # add another loop for the tex include paths? + Logs.debug('tex: trying %s%s', path, k) + fi = node.parent.find_resource(path + k) + if fi: + found = True + nodes.append(fi) + # no break + if not found: + Logs.debug('tex: could not find %s', path) + + Logs.debug('tex: found the following bibunit files: %s', nodes) + return nodes + +exts_deps_tex = ['', '.ltx', '.tex', '.bib', '.pdf', '.png', '.eps', '.ps', '.sty'] +"""List of typical file extensions included in latex files""" + +exts_tex = ['.ltx', '.tex'] +"""List of typical file extensions that contain latex""" + +re_tex = re.compile(r'\\(?P<type>usepackage|RequirePackage|include|bibliography([^\[\]{}]*)|putbib|includegraphics|input|import|bringin|lstinputlisting)(\[[^\[\]]*\])?{(?P<file>[^{}]*)}',re.M) +"""Regexp for expressions that may include latex files""" + +g_bibtex_re = re.compile('bibdata', re.M) +"""Regexp for bibtex files""" + +g_glossaries_re = re.compile('\\@newglossary', re.M) +"""Regexp for expressions that create glossaries""" + +class tex(Task.Task): + """ + Compiles a tex/latex file. + + .. inheritance-diagram:: waflib.Tools.tex.latex waflib.Tools.tex.xelatex waflib.Tools.tex.pdflatex + """ + + bibtex_fun, _ = Task.compile_fun('${BIBTEX} ${BIBTEXFLAGS} ${SRCFILE}', shell=False) + bibtex_fun.__doc__ = """ + Execute the program **bibtex** + """ + + makeindex_fun, _ = Task.compile_fun('${MAKEINDEX} ${MAKEINDEXFLAGS} ${SRCFILE}', shell=False) + makeindex_fun.__doc__ = """ + Execute the program **makeindex** + """ + + makeglossaries_fun, _ = Task.compile_fun('${MAKEGLOSSARIES} ${SRCFILE}', shell=False) + makeglossaries_fun.__doc__ = """ + Execute the program **makeglossaries** + """ + + def exec_command(self, cmd, **kw): + """ + Executes TeX commands without buffering (latex may prompt for inputs) + + :return: the return code + :rtype: int + """ + if self.env.PROMPT_LATEX: + # capture the outputs in configuration tests + kw['stdout'] = kw['stderr'] = None + return super(tex, self).exec_command(cmd, **kw) + + def scan_aux(self, node): + """ + Recursive regex-based scanner that finds included auxiliary files. + """ + nodes = [node] + re_aux = re.compile(r'\\@input{(?P<file>[^{}]*)}', re.M) + + def parse_node(node): + code = node.read() + for match in re_aux.finditer(code): + path = match.group('file') + found = node.parent.find_or_declare(path) + if found and found not in nodes: + Logs.debug('tex: found aux node %r', found) + nodes.append(found) + parse_node(found) + parse_node(node) + return nodes + + def scan(self): + """ + Recursive regex-based scanner that finds latex dependencies. It uses :py:attr:`waflib.Tools.tex.re_tex` + + Depending on your needs you might want: + + * to change re_tex:: + + from waflib.Tools import tex + tex.re_tex = myregex + + * or to change the method scan from the latex tasks:: + + from waflib.Task import classes + classes['latex'].scan = myscanfunction + """ + node = self.inputs[0] + + nodes = [] + names = [] + seen = [] + if not node: + return (nodes, names) + + def parse_node(node): + if node in seen: + return + seen.append(node) + code = node.read() + for match in re_tex.finditer(code): + + multibib = match.group('type') + if multibib and multibib.startswith('bibliography'): + multibib = multibib[len('bibliography'):] + if multibib.startswith('style'): + continue + else: + multibib = None + + for path in match.group('file').split(','): + if path: + add_name = True + found = None + for k in exts_deps_tex: + + # issue 1067, scan in all texinputs folders + for up in self.texinputs_nodes: + Logs.debug('tex: trying %s%s', path, k) + found = up.find_resource(path + k) + if found: + break + + + for tsk in self.generator.tasks: + if not found or found in tsk.outputs: + break + else: + nodes.append(found) + add_name = False + for ext in exts_tex: + if found.name.endswith(ext): + parse_node(found) + break + + # multibib stuff + if found and multibib and found.name.endswith('.bib'): + try: + self.multibibs.append(found) + except AttributeError: + self.multibibs = [found] + + # no break, people are crazy + if add_name: + names.append(path) + parse_node(node) + + for x in nodes: + x.parent.get_bld().mkdir() + + Logs.debug("tex: found the following : %s and names %s", nodes, names) + return (nodes, names) + + def check_status(self, msg, retcode): + """ + Checks an exit status and raise an error with a particular message + + :param msg: message to display if the code is non-zero + :type msg: string + :param retcode: condition + :type retcode: boolean + """ + if retcode != 0: + raise Errors.WafError('%r command exit status %r' % (msg, retcode)) + + def info(self, *k, **kw): + try: + info = self.generator.bld.conf.logger.info + except AttributeError: + info = Logs.info + info(*k, **kw) + + def bibfile(self): + """ + Parses *.aux* files to find bibfiles to process. + If present, execute :py:meth:`waflib.Tools.tex.tex.bibtex_fun` + """ + for aux_node in self.aux_nodes: + try: + ct = aux_node.read() + except EnvironmentError: + Logs.error('Error reading %s: %r', aux_node.abspath()) + continue + + if g_bibtex_re.findall(ct): + self.info('calling bibtex') + + self.env.env = {} + self.env.env.update(os.environ) + self.env.env.update({'BIBINPUTS': self.texinputs(), 'BSTINPUTS': self.texinputs()}) + self.env.SRCFILE = aux_node.name[:-4] + self.check_status('error when calling bibtex', self.bibtex_fun()) + + for node in getattr(self, 'multibibs', []): + self.env.env = {} + self.env.env.update(os.environ) + self.env.env.update({'BIBINPUTS': self.texinputs(), 'BSTINPUTS': self.texinputs()}) + self.env.SRCFILE = node.name[:-4] + self.check_status('error when calling bibtex', self.bibtex_fun()) + + def bibunits(self): + """ + Parses *.aux* file to find bibunit files. If there are bibunit files, + runs :py:meth:`waflib.Tools.tex.tex.bibtex_fun`. + """ + try: + bibunits = bibunitscan(self) + except OSError: + Logs.error('error bibunitscan') + else: + if bibunits: + fn = ['bu' + str(i) for i in range(1, len(bibunits) + 1)] + if fn: + self.info('calling bibtex on bibunits') + + for f in fn: + self.env.env = {'BIBINPUTS': self.texinputs(), 'BSTINPUTS': self.texinputs()} + self.env.SRCFILE = f + self.check_status('error when calling bibtex', self.bibtex_fun()) + + def makeindex(self): + """ + Searches the filesystem for *.idx* files to process. If present, + runs :py:meth:`waflib.Tools.tex.tex.makeindex_fun` + """ + self.idx_node = self.inputs[0].change_ext('.idx') + try: + idx_path = self.idx_node.abspath() + os.stat(idx_path) + except OSError: + self.info('index file %s absent, not calling makeindex', idx_path) + else: + self.info('calling makeindex') + + self.env.SRCFILE = self.idx_node.name + self.env.env = {} + self.check_status('error when calling makeindex %s' % idx_path, self.makeindex_fun()) + + def bibtopic(self): + """ + Lists additional .aux files from the bibtopic package + """ + p = self.inputs[0].parent.get_bld() + if os.path.exists(os.path.join(p.abspath(), 'btaux.aux')): + self.aux_nodes += p.ant_glob('*[0-9].aux') + + def makeglossaries(self): + """ + Lists additional glossaries from .aux files. If present, runs the makeglossaries program. + """ + src_file = self.inputs[0].abspath() + base_file = os.path.basename(src_file) + base, _ = os.path.splitext(base_file) + for aux_node in self.aux_nodes: + try: + ct = aux_node.read() + except EnvironmentError: + Logs.error('Error reading %s: %r', aux_node.abspath()) + continue + + if g_glossaries_re.findall(ct): + if not self.env.MAKEGLOSSARIES: + raise Errors.WafError("The program 'makeglossaries' is missing!") + Logs.warn('calling makeglossaries') + self.env.SRCFILE = base + self.check_status('error when calling makeglossaries %s' % base, self.makeglossaries_fun()) + return + + def texinputs(self): + """ + Returns the list of texinput nodes as a string suitable for the TEXINPUTS environment variables + + :rtype: string + """ + return os.pathsep.join([k.abspath() for k in self.texinputs_nodes]) + os.pathsep + + def run(self): + """ + Runs the whole TeX build process + + Multiple passes are required depending on the usage of cross-references, + bibliographies, glossaries, indexes and additional contents + The appropriate TeX compiler is called until the *.aux* files stop changing. + """ + env = self.env + + if not env.PROMPT_LATEX: + env.append_value('LATEXFLAGS', '-interaction=batchmode') + env.append_value('PDFLATEXFLAGS', '-interaction=batchmode') + env.append_value('XELATEXFLAGS', '-interaction=batchmode') + + # important, set the cwd for everybody + self.cwd = self.inputs[0].parent.get_bld() + + self.info('first pass on %s', self.__class__.__name__) + + # Hash .aux files before even calling the LaTeX compiler + cur_hash = self.hash_aux_nodes() + + self.call_latex() + + # Find the .aux files again since bibtex processing can require it + self.hash_aux_nodes() + + self.bibtopic() + self.bibfile() + self.bibunits() + self.makeindex() + self.makeglossaries() + + for i in range(10): + # There is no need to call latex again if the .aux hash value has not changed + prev_hash = cur_hash + cur_hash = self.hash_aux_nodes() + if not cur_hash: + Logs.error('No aux.h to process') + if cur_hash and cur_hash == prev_hash: + break + + # run the command + self.info('calling %s', self.__class__.__name__) + self.call_latex() + + def hash_aux_nodes(self): + """ + Returns a hash of the .aux file contents + + :rtype: string or bytes + """ + try: + self.aux_nodes + except AttributeError: + try: + self.aux_nodes = self.scan_aux(self.inputs[0].change_ext('.aux')) + except IOError: + return None + return Utils.h_list([Utils.h_file(x.abspath()) for x in self.aux_nodes]) + + def call_latex(self): + """ + Runs the TeX compiler once + """ + self.env.env = {} + self.env.env.update(os.environ) + self.env.env.update({'TEXINPUTS': self.texinputs()}) + self.env.SRCFILE = self.inputs[0].abspath() + self.check_status('error when calling latex', self.texfun()) + +class latex(tex): + "Compiles LaTeX files" + texfun, vars = Task.compile_fun('${LATEX} ${LATEXFLAGS} ${SRCFILE}', shell=False) + +class pdflatex(tex): + "Compiles PdfLaTeX files" + texfun, vars = Task.compile_fun('${PDFLATEX} ${PDFLATEXFLAGS} ${SRCFILE}', shell=False) + +class xelatex(tex): + "XeLaTeX files" + texfun, vars = Task.compile_fun('${XELATEX} ${XELATEXFLAGS} ${SRCFILE}', shell=False) + +class dvips(Task.Task): + "Converts dvi files to postscript" + run_str = '${DVIPS} ${DVIPSFLAGS} ${SRC} -o ${TGT}' + color = 'BLUE' + after = ['latex', 'pdflatex', 'xelatex'] + +class dvipdf(Task.Task): + "Converts dvi files to pdf" + run_str = '${DVIPDF} ${DVIPDFFLAGS} ${SRC} ${TGT}' + color = 'BLUE' + after = ['latex', 'pdflatex', 'xelatex'] + +class pdf2ps(Task.Task): + "Converts pdf files to postscript" + run_str = '${PDF2PS} ${PDF2PSFLAGS} ${SRC} ${TGT}' + color = 'BLUE' + after = ['latex', 'pdflatex', 'xelatex'] + +@feature('tex') +@before_method('process_source') +def apply_tex(self): + """ + Creates :py:class:`waflib.Tools.tex.tex` objects, and + dvips/dvipdf/pdf2ps tasks if necessary (outs='ps', etc). + """ + if not getattr(self, 'type', None) in ('latex', 'pdflatex', 'xelatex'): + self.type = 'pdflatex' + + outs = Utils.to_list(getattr(self, 'outs', [])) + + # prompt for incomplete files (else the batchmode is used) + try: + self.generator.bld.conf + except AttributeError: + default_prompt = False + else: + default_prompt = True + self.env.PROMPT_LATEX = getattr(self, 'prompt', default_prompt) + + deps_lst = [] + + if getattr(self, 'deps', None): + deps = self.to_list(self.deps) + for dep in deps: + if isinstance(dep, str): + n = self.path.find_resource(dep) + if not n: + self.bld.fatal('Could not find %r for %r' % (dep, self)) + if not n in deps_lst: + deps_lst.append(n) + elif isinstance(dep, Node.Node): + deps_lst.append(dep) + + for node in self.to_nodes(self.source): + if self.type == 'latex': + task = self.create_task('latex', node, node.change_ext('.dvi')) + elif self.type == 'pdflatex': + task = self.create_task('pdflatex', node, node.change_ext('.pdf')) + elif self.type == 'xelatex': + task = self.create_task('xelatex', node, node.change_ext('.pdf')) + + task.env = self.env + + # add the manual dependencies + if deps_lst: + for n in deps_lst: + if not n in task.dep_nodes: + task.dep_nodes.append(n) + + # texinputs is a nasty beast + if hasattr(self, 'texinputs_nodes'): + task.texinputs_nodes = self.texinputs_nodes + else: + task.texinputs_nodes = [node.parent, node.parent.get_bld(), self.path, self.path.get_bld()] + lst = os.environ.get('TEXINPUTS', '') + if self.env.TEXINPUTS: + lst += os.pathsep + self.env.TEXINPUTS + if lst: + lst = lst.split(os.pathsep) + for x in lst: + if x: + if os.path.isabs(x): + p = self.bld.root.find_node(x) + if p: + task.texinputs_nodes.append(p) + else: + Logs.error('Invalid TEXINPUTS folder %s', x) + else: + Logs.error('Cannot resolve relative paths in TEXINPUTS %s', x) + + if self.type == 'latex': + if 'ps' in outs: + tsk = self.create_task('dvips', task.outputs, node.change_ext('.ps')) + tsk.env.env = dict(os.environ) + if 'pdf' in outs: + tsk = self.create_task('dvipdf', task.outputs, node.change_ext('.pdf')) + tsk.env.env = dict(os.environ) + elif self.type == 'pdflatex': + if 'ps' in outs: + self.create_task('pdf2ps', task.outputs, node.change_ext('.ps')) + self.source = [] + +def configure(self): + """ + Find the programs tex, latex and others without raising errors. + """ + v = self.env + for p in 'tex latex pdflatex xelatex bibtex dvips dvipdf ps2pdf makeindex pdf2ps makeglossaries'.split(): + try: + self.find_program(p, var=p.upper()) + except self.errors.ConfigurationError: + pass + v.DVIPSFLAGS = '-Ppdf' + |