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#! /usr/bin/env python3
import sys
import os
import subprocess
def replace_references(lines, file_dir):
result = ""
for (i, line) in enumerate(lines):
if line.startswith("#include "):
# include that file directly
# find the file as a path relative to the file we opened..
filepath = file_dir + line[len("#include "):].strip()
try:
f = open(filepath)
content = f.read()
result = result + '\n' + content
except Exception as err:
print("Error reading file {}:{}".format(filepath, str(err)))
return None
elif line.startswith("#eval "):
# include results of system'ing that line
try:
command = line[6:].strip()
eval_p = subprocess.Popen(['bash', '-c', command], stdout=subprocess.PIPE, stdin=subprocess.PIPE, cwd=file_dir)
evald_text = eval_p.communicate()[0].decode('utf-8')
if evald_text is None or len(evald_text.strip()) == 0:
raise Exception("Evaluating `{}` produced no output".format(command))
result = result + '<pre>\n' + evald_text + '</pre>\n'
except Exception as e:
print("Error processing line {}:\n {}\nError: {}".format(i, line, e))
return None
else:
# just include the line!
try:
result = result + line.decode("utf-8")
except Exception as e:
print("Error processing line {}:\n {}\nError: {}".format(i, line, e))
return None
return result
if __name__ == "__main__":
if len(sys.argv) != 2:
print("Usage: {} <page_to_compile>".format(sys.argv[0]))
md_source = sys.argv[1]
ridx = md_source.rfind('.')
if ridx >= len(md_source) - 5:
page_path = md_source[:ridx]
else:
page_path = md_source
page_path = page_path + ".html"
page_cwd = './'
if '/' in page_path:
page_cwd = page_path[:(md_source.rfind('/') + 1)]
page_path = page_path[(md_source.rfind('/') + 1):]
headers_file = './headers.html'
compiled_dest = './generated/{}{}'.format(page_cwd, page_path).replace('source/', '')
dest_wd = compiled_dest[:compiled_dest.rfind('/') + 1]
print("Source: {}\nPage path: {}\nDest file: {}".format(md_source, page_path, compiled_dest))
try:
md_file = open(md_source)
lines = md_file.readlines()
print("Compiling {}".format(md_source))
markdown_blob = replace_references(lines, page_cwd)
if markdown_blob == None:
print("Error compiling {}".format(md_source))
sys.exit(3)
# now shove it all through pandoc
pandoc_proc = subprocess.Popen(['pandoc', '--template=content_template.pandoc'], stdout=subprocess.PIPE, stdin=subprocess.PIPE)
html = pandoc_proc.communicate(markdown_blob.encode('utf-8'))[0]
try:
if not os.path.isdir(dest_wd):
os.makedirs(dest_wd)
out_file = open(compiled_dest, 'w')
out_file.write(html)
out_file.close()
except IOError as ioerr:
print("Unknown error writing result: " + str(ioerr))
sys.exit(2)
except IOError as ioerr:
if ioerr.errno == 2:
print("Source file '{}' does not exist".format(md_source))
else:
print("Unknown ioerr: " + str(ioerr))
sys.exit(1)
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