114 lines
4.4 KiB
Python
Executable File
114 lines
4.4 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# markdown-preprocess - filter *.md.in files, convert to .md
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#
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import glob
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import os
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import re
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import sys
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def main():
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script_dir = os.path.abspath(os.path.dirname(__file__))
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man_dir = os.path.join(script_dir,"../docs/source/markdown")
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try:
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os.chdir(man_dir)
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except FileNotFoundError:
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raise Exception("Please invoke me from the base repo dir")
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# If called with args, process only those files
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infiles = [ os.path.basename(x) for x in sys.argv[1:] ]
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if len(infiles) == 0:
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# Called without args: process all *.md.in files
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infiles = glob.glob('*.md.in')
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for infile in infiles:
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process(infile)
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def process(infile):
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# Some options are the same between containers and pods; determine
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# which description to use from the name of the source man page.
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pod_or_container = 'container'
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if '-pod-' in infile or '-kube-' in infile:
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pod_or_container = 'pod'
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# foo.md.in -> foo.md -- but always write to a tmpfile
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outfile = os.path.splitext(infile)[0]
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outfile_tmp = outfile + '.tmp.' + str(os.getpid())
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# print("got here: ",infile, " -> ", outfile)
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with open(infile, 'r') as fh_in, open(outfile_tmp, 'w') as fh_out:
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for line in fh_in:
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# '@@option foo' -> include file options/foo.md
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if line.startswith('@@option '):
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_, optionname = line.strip().split(" ")
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optionfile = os.path.join("options", optionname + '.md')
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# Comment intended to help someone viewing the .md file.
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# Leading newline is important because if two lines are
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# consecutive without a break, sphinx (but not go-md2man)
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# treats them as one line and will unwantedly render the
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# comment in its output.
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fh_out.write("\n[//]: # (BEGIN included file " + optionfile + ")\n")
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with open(optionfile, 'r') as fh_optfile:
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for opt_line in fh_optfile:
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opt_line = replace_type(opt_line, pod_or_container)
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opt_line = opt_line.replace('<<subcommand>>', podman_subcommand(infile))
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opt_line = opt_line.replace('<<fullsubcommand>>', podman_subcommand(infile, 'full'))
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fh_out.write(opt_line)
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fh_out.write("\n[//]: # (END included file " + optionfile + ")\n")
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else:
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fh_out.write(line)
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os.chmod(outfile_tmp, 0o444)
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os.rename(outfile_tmp, outfile)
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# Given a file path of the form podman-foo-bar.1.md.in, return "foo bar"
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def podman_subcommand(string: str, full=None) -> str:
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# Special case: 'podman-pod-start' becomes just 'start'
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if not full:
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if string.startswith("podman-pod-"):
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string = string[len("podman-pod-"):]
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if string.startswith("podman-"):
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string = string[len("podman-"):]
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if string.endswith(".1.md.in"):
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string = string[:-len(".1.md.in")]
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return string.replace("-", " ")
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# Replace instances of '<<pod|container>>' with the desired one (based on
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# 'type' which is 'pod' or 'container').
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def replace_type(line: str, type: str) -> str:
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# Internal helper function: determines the desired half of the <a|b> string
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def replwith(matchobj):
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lhs, rhs = matchobj[0].split('|')
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# Strip off '<<' and '>>'
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lhs = lhs[2:]
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rhs = rhs[:len(rhs)-2]
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# Check both sides for 'pod' followed by (non-"m" or end-of-string).
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# The non-m prevents us from triggering on 'podman', which could
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# conceivably be present in both sides. And we check for 'pod',
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# not 'container', because it's possible to have something like
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# <<container in pod|container>>.
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if re.match('.*pod([^m]|$)', lhs, re.IGNORECASE):
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if re.match('.*pod([^m]|$)', rhs, re.IGNORECASE):
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raise Exception("'%s' matches 'pod' in both left and right sides" % matchobj[0])
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# Only left-hand side has "pod"
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if type == 'pod':
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return lhs
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else:
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return rhs
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else:
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if not re.match('.*pod([^m]|$)', rhs, re.IGNORECASE):
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raise Exception("'%s' does not match 'pod' in either side" % matchobj[0])
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if type == 'pod':
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return rhs
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else:
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return lhs
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return re.sub('<<[^\|>]*\|[^\|>]*>>', replwith, line)
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if __name__ == "__main__":
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main()
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