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106 lines
4.5 KiB
106 lines
4.5 KiB
import sys |
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import subprocess |
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import re |
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import os |
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source_dir = sys.argv[1] |
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build_dir = sys.argv[2] |
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insert_toc_after_page = 2 |
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max_bookmark_level = 2 |
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numbered_levels = 2 |
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index_pdf_filename = build_dir + '/weasyprint/index.pdf' |
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css_filename = source_dir + '/css/print-theme.css' |
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script_dir = os.path.dirname(__file__) |
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# Compile PDF |
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pdf_compile_command = ['weasyprint', build_dir + '/weasyprint/index.html', index_pdf_filename, '-s', source_dir + '/_static/custom.css', '-s', css_filename] |
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assert(subprocess.run(pdf_compile_command).returncode == 0) |
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# Generate table of content (TOC) |
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assert(subprocess.run(['sh', '-c', script_dir + '/../pdftoc-to-latex "' + index_pdf_filename + '" > "' + build_dir + '/weasyprint/toc.tex"']).returncode == 0) |
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subprocess.run(['pdflatex', '-interaction', 'nonstopmode', '-output-directory=' + build_dir + '/weasyprint', build_dir + '/weasyprint/toc.tex']) |
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# Count TOC pages |
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toc_pdfinfo = subprocess.run(['pdfinfo', build_dir + '/weasyprint/toc.pdf'], stdout=subprocess.PIPE) |
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assert(toc_pdfinfo.returncode == 0) |
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toc_pages_match = re.search('\\nPages:\s+([0-9]+)\\n', toc_pdfinfo.stdout.decode()) |
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toc_num_pages = int(toc_pages_match.group(1)) |
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print('toc.pdf: ' + str(toc_num_pages) + ' page(s)') |
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# Count pages in index.pdf |
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pdfinfo = subprocess.run(['pdfinfo', index_pdf_filename], stdout=subprocess.PIPE) |
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assert(pdfinfo.returncode == 0) |
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pages_match = re.search('\\nPages:\s+([0-9]+)\\n', pdfinfo.stdout.decode()) |
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num_pages = int(pages_match.group(1)) |
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print('index.pdf: ' + str(num_pages) + ' pages') |
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num_pages = num_pages + toc_num_pages # account for table of content that will be added later |
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# If needed, update the CSS file with the correct number of pages |
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with open(css_filename) as css_file: |
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original_css = css_file.read() |
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modified_css = re.sub('content: counter\(page\) "/[0-9]+";', 'content: counter(page) "/'+str(num_pages)+'";', original_css) |
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if modified_css != original_css: |
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with open(css_filename, 'w') as css_file: |
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css_file.write(modified_css) |
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# We need to compile again with the modified CSS (this won't impact the TOC) |
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print('Number of pages has changed, rebuilding PDF...') |
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assert(subprocess.run(pdf_compile_command).returncode == 0) |
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# Insert TOC in the PDF |
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assert(subprocess.run(['pdftk', 'A='+index_pdf_filename, 'B='+build_dir+'/weasyprint/toc.pdf', 'cat', 'A1-'+str(insert_toc_after_page), 'B', 'A'+str(insert_toc_after_page+1)+'-end', 'output', build_dir + '/weasyprint/vheliotech-without-bookmarks.pdf']).returncode == 0) |
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# Restore bookmarks |
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extract_bookmarks_from = index_pdf_filename |
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source_pdf_filename = build_dir + '/weasyprint/vheliotech-without-bookmarks.pdf' |
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output_filename = build_dir + '/weasyprint/vheliotech.pdf' |
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bookmarks_filename = extract_bookmarks_from.replace('.pdf', '.txt') |
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assert(bookmarks_filename != extract_bookmarks_from) |
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# extract PDF metadata into a text file |
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assert(subprocess.run(['pdftk', extract_bookmarks_from, 'dump_data', 'output', bookmarks_filename]).returncode == 0) |
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with open(bookmarks_filename) as bookmarks_file: |
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metadata = bookmarks_file.read() |
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# Remove link icon character at the end of each bookmark name (these are added by sphinx but make no sense in a PDF bookmark) |
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metadata = metadata.replace('', '') |
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# Remove bookmarks for small titles, adjust page number for remaining ones, and add numbering if level is not above numbered_levels |
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title_counters = [] |
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for level in range(numbered_levels): |
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title_counters.append(0) |
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def filterBookmark(match): |
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#print('bookmark: "' + match.group(0) + '"') |
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level = int(match.group(2)) |
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if level > max_bookmark_level: |
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return '' |
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initial_page = int(match.group(3)) |
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final_page = initial_page + toc_num_pages if initial_page > insert_toc_after_page else initial_page |
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title_counters[level - 1] = title_counters[level - 1] + 1 |
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for l in range(level, numbered_levels): |
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title_counters[l] = 0 |
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title_number = '' |
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if level <= numbered_levels: |
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for l in range(level): |
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title_number += str(title_counters[l]) + '.' |
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title_number += ' ' |
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return 'BookmarkBegin\nBookmarkTitle: ' + title_number + match.group(1).replace(' ', ' ')+'\nBookmarkLevel: '+match.group(2)+'\nBookmarkPageNumber: '+str(final_page)+'\n' |
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metadata = re.sub('BookmarkBegin\nBookmarkTitle: (.*)\nBookmarkLevel: ([0-9]+)\nBookmarkPageNumber: ([0-9]+)\n', filterBookmark, metadata) |
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with open(bookmarks_filename, 'w') as bookmarks_file: |
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bookmarks_file.write(metadata) |
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# generate the output PDF |
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assert(subprocess.run(['pdftk', source_pdf_filename, 'update_info', bookmarks_filename, 'output', output_filename]).returncode == 0) |
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print('Generated file: ' + output_filename)
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