lyxpreview: Handle bibtex-generated references and bibliography.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@39795 a592a061-630c-0410-9148-cb99ea01b6c8

lib/scripts/legacy_lyxpreview2ppm.py

@@ -81,7 +81,7 @@ import glob, os, pipes, re, string, sys
 from lyxpreview_tools import copyfileobj, error, filter_pages, find_exe, \
      find_exe_or_terminate, join_metrics_and_rename, latex_commands, \
      latex_file_re, make_texcolor, mkstemp, pdflatex_commands, progress, \
-     run_command, warning, write_metrics_info
+     run_command, run_latex, warning, write_metrics_info
 
 
 def usage(prog_name):
@@ -290,12 +290,7 @@ def legacy_conversion_step1(latex_file, dpi, output_format, fg_color, bg_color,
         error("Unable to move color info into the latex file")
 
     # Compile the latex file.
-    latex_call = '%s "%s"' % (latex, latex_file)
-
-    latex_status, latex_stdout = run_command(latex_call)
-    if latex_status:
-        warning("%s had problems compiling %s" \
-              % (os.path.basename(latex), latex_file))
+    latex_status, latex_stdout = run_latex(latex, latex_file)
 
     if pdf_output:
         return legacy_conversion_step3(latex_file, dpi, output_format, True, skipMetrics)
@@ -318,11 +313,7 @@ def legacy_conversion_pdflatex(latex_file, failed_pages, legacy_metrics, gs,
         filter_pages(latex_file, pdf_latex_file, failed_pages)
 
         # pdflatex call
-        pdflatex_call = '%s "%s"' % (pdflatex, pdf_latex_file)
-        pdflatex_status, pdflatex_stdout = run_command(pdflatex_call)
-        if pdflatex_status:
-            warning("%s had problems compiling %s" \
-                % (os.path.basename(pdflatex), pdf_latex_file))
+        pdflatex_status, pdflatex_stdout = run_latex(pdflatex, pdf_latex_file)
 
         pdf_file = latex_file_re.sub(".pdf", pdf_latex_file)
 

lib/scripts/lyxpreview2bitmap.py

@@ -44,6 +44,7 @@
 #   --fg=<color>:  The foreground color as a hexadecimal string, eg '000000'.
 #   --bg=<color>:  The background color as a hexadecimal string, eg 'faf0e6'.
 #   --latex=<exe>: The converter for latex files. Default is latex.
+#   --bibtex=<exe>: The converter for bibtex files. Default is bibtex.
 #   --lilypond:    Preprocess through lilypond-book. Default is false.
 #   --lilypond-book=<exe>:
 #                  The converter for lytex files. Default is lilypond-book.
@@ -79,10 +80,10 @@ import getopt, glob, os, re, shutil, string, sys
 
 from legacy_lyxpreview2ppm import legacy_conversion_step1
 
-from lyxpreview_tools import copyfileobj, error, filter_pages, find_exe, \
-     find_exe_or_terminate, join_metrics_and_rename, latex_commands, \
-     latex_file_re, make_texcolor, mkstemp, pdflatex_commands, progress, \
-     run_command, warning, write_metrics_info
+from lyxpreview_tools import bibtex_commands, copyfileobj, error, \
+     filter_pages, find_exe, find_exe_or_terminate, join_metrics_and_rename, \
+     latex_commands, latex_file_re, make_texcolor, mkstemp, pdflatex_commands, \
+     progress, run_command, run_latex, run_tex, warning, write_metrics_info
 
 
 def usage(prog_name):
@@ -95,6 +96,7 @@ Options:
   --fg=<color>:  Foreground color (default: black, ie '000000')
   --bg=<color>:  Background color (default: white, ie 'ffffff')
   --latex=<exe>: Specify the executable for latex (default: latex)
+  --bibtex=<exe>: Specify the executable for bibtex (default: bibtex)
   --lilypond:    Preprocess through lilypond-book (default: false)
   --lilypond-book=<exe>:
                  The executable for lilypond-book (default: lilypond-book)
@@ -312,6 +314,7 @@ def main(argv):
     dpi = 128
     fg_color = "000000"
     bg_color = "ffffff"
+    bibtex = None
     latex = None
     lilypond = False
     lilypond_book = None
@@ -320,9 +323,9 @@ def main(argv):
 
     # Parse and manipulate the command line arguments.
     try:
-        (opts, args) = getopt.gnu_getopt(argv[1:], "dhv", ["bg=", "debug",
-            "dpi=", "fg=", "help", "latex=", "lilypond", "lilypond-book=",
-            "png", "ppm", "verbose"])
+        (opts, args) = getopt.gnu_getopt(argv[1:], "dhv", ["bibtex=", "bg=",
+            "debug", "dpi=", "fg=", "help", "latex=", "lilypond",
+            "lilypond-book=", "png", "ppm", "verbose"])
     except getopt.GetoptError, err:
         error("%s\n%s" % (err, usage(script_name)))
 
@@ -331,6 +334,8 @@ def main(argv):
         if opt in ("-h", "--help"):
             print usage(script_name)
             sys.exit(0)
+        elif opt == "--bibtex":
+            bibtex = [val]
         elif opt == "--bg":
             bg_color = val
         elif opt in ("-d", "--debug"):
@@ -385,6 +390,7 @@ def main(argv):
 
     # External programs used by the script.
     latex = find_exe_or_terminate(latex or latex_commands)
+    bibtex = find_exe(bibtex or bibtex_commands)
     if lilypond:
         lilypond_book = find_exe_or_terminate(lilypond_book or ["lilypond-book"])
 
@@ -393,6 +399,7 @@ def main(argv):
 
     progress("Latex command: %s" % latex)
     progress("Latex produces pdf output: %s" % pdf_output)
+    progress("Bibtex command: %s" % bibtex)
     progress("Lilypond-book command: %s" % lilypond_book)
     progress("Preprocess through lilypond-book: %s" % lilypond)
     progress("Altering the latex file for font size and colors")
@@ -449,12 +456,7 @@ def main(argv):
         warning("Unable to move color info into the latex file")
 
     # Compile the latex file.
-    latex_call = '%s "%s"' % (latex, latex_file)
-
-    latex_status, latex_stdout = run_command(latex_call)
-    if latex_status:
-        warning("%s had problems compiling %s" \
-              % (os.path.basename(latex), latex_file))
+    latex_status, latex_stdout = run_latex(latex, latex_file, bibtex)
 
     # The dvi output file name
     dvi_file = latex_file_re.sub(".dvi", latex_file)

lib/scripts/lyxpreview_tools.py

@@ -12,7 +12,7 @@
 
 # A repository of the following functions, used by the lyxpreview2xyz scripts.
 # copyfileobj, error, find_exe, find_exe_or_terminate, make_texcolor, mkstemp,
-# progress, run_command, warning
+# progress, run_command, run_latex, warning
 
 # Requires python 2.4 or later (subprocess module).
 
@@ -23,7 +23,8 @@ import os, re, string, subprocess, sys, tempfile
 debug = False
 verbose = False
 
-# Known flavors of latex
+# Known flavors of latex and bibtex
+bibtex_commands = ("bibtex", "bibtex8", "biber")
 latex_commands = ("latex", "pplatex", "platex", "latex2e")
 pdflatex_commands = ("pdflatex", "xelatex", "lualatex")
 
@@ -306,3 +307,49 @@ def join_metrics_and_rename(original_metrics, new_metrics, new_page_indexes, ori
             original_metrics[legacy_index] = (index, metric)
         else:
             original_metrics.insert(legacy_index, (index, metric))
+
+
+def run_latex(latex, latex_file, bibtex = None):
+    # Run latex
+    latex_status, latex_stdout = run_tex(latex, latex_file)
+
+    if bibtex is None:
+        return latex_status, latex_stdout
+
+    # The aux and log output file names
+    aux_file = latex_file_re.sub(".aux", latex_file)
+    log_file = latex_file_re.sub(".log", latex_file)
+
+    # Run bibtex/latex if necessary
+    progress("Checking if a bibtex run is necessary")
+    if string_in_file(r"\bibdata", aux_file):
+        bibtex_status, bibtex_stdout = run_tex(bibtex, aux_file)
+        latex_status, latex_stdout = run_tex(latex, latex_file)
+    # Rerun latex if necessary
+    progress("Checking if a latex rerun is necessary")
+    if string_in_file("Warning: Citation", log_file):
+        latex_status, latex_stdout = run_tex(latex, latex_file)
+
+    return latex_status, latex_stdout
+
+
+def run_tex(tex, tex_file):
+    tex_call = '%s "%s"' % (tex, tex_file)
+
+    tex_status, tex_stdout = run_command(tex_call)
+    if tex_status:
+        warning("%s had problems compiling %s" \
+            % (os.path.basename(tex), tex_file))
+    return tex_status, tex_stdout
+
+
+def string_in_file(string, infile):
+    if not os.path.isfile(infile):
+        return False
+    f = open(infile, 'r')
+    for line in f.readlines():
+        if string in line:
+            f.close()
+            return True
+    f.close()
+    return False

src/graphics/PreviewLoader.cpp

@@ -602,6 +602,12 @@ void PreviewLoader::Impl::startLoading(bool wait)
 		cs << " --latex=xelatex";
 	if (buffer_.params().encoding().package() == Encoding::japanese)
 		cs << " --latex=platex";
+	if (buffer_.params().bibtex_command != "default")
+		cs << " --bibtex=" << quoteName(buffer_.params().bibtex_command);
+	else if (buffer_.params().encoding().package() == Encoding::japanese)
+		cs << " --bibtex=" << quoteName(lyxrc.jbibtex_command);
+	else
+		cs << " --bibtex=" << quoteName(lyxrc.bibtex_command);
 	if (buffer_.params().bufferFormat() == "lilypond-book")
 		cs << " --lilypond";