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#!/usr/bin/env python | |
""" | |
Generates an HTML file with a table listing the esg-node script versions | |
in each snapshot. | |
""" | |
import os | |
import glob | |
import re | |
class SnapshotLister: | |
def __init__(self, fileroot, urlroot, verbose=False): | |
self.fileroot = fileroot | |
self.urlroot = urlroot | |
self.verbose = verbose | |
def _is_valid_snapshot(self, relpath): | |
if relpath.startswith("."): | |
return False | |
return os.path.exists(os.path.join(self.fileroot, relpath, "dist")) | |
def list_snapshots(self): | |
return filter(self._is_valid_snapshot, | |
os.listdir(self.fileroot)) | |
def _last_matching(self, bits): | |
""" | |
join bits to of a glob pattern and return most recent match | |
""" | |
pattern = os.path.join(*bits) | |
matches = glob.glob(pattern) | |
matches.sort(key = lambda path:os.lstat(path).st_mtime) | |
return matches[-1] | |
def find_scripts_in_snapshot(self, relpath): | |
""" | |
Returns paths of esg-nodes script in a snapshot as 2-tuple | |
(master, devel) | |
""" | |
elem_master = [self.fileroot, relpath, "dist", "esgf-installer", | |
"*.*", "esg-node"] | |
elem_devel = elem_master[:3] + ["devel"] + elem_master[3:] | |
return (self._last_matching(elem_master), | |
self._last_matching(elem_devel)) | |
def find_versions_in_snapshot(self, relpath): | |
return map(self.find_version_from_script, | |
self.find_scripts_in_snapshot(relpath)) | |
def find_version_from_script(self, script_path): | |
f = open(script_path) | |
lines = f.readlines() | |
f.close() | |
for line in lines: | |
m = re.match('script_version="(.*)"', line) | |
if m: | |
return m.group(1) | |
return "unknown" | |
def make_snapshot_link(self, relpath): | |
url = os.path.join(self.urlroot, relpath) | |
return '<a href="{0}">{1}</a>'.format(url, relpath) | |
def get_table_rows(self): | |
rows = [] | |
for relpath in self.list_snapshots(): | |
try: | |
versions = self.find_versions_in_snapshot(relpath) | |
except IndexError: | |
continue | |
rows.append([self.make_snapshot_link(relpath), | |
versions[0], | |
versions[1]]) | |
if self.verbose: | |
print relpath, versions | |
return rows | |
def make_index(self): | |
path = os.path.join(self.fileroot, 'versions.html') | |
if self.verbose: | |
print path | |
f = open(path, 'w') | |
f.write('<html><head><title>versions in snapshots</title></head>\n') | |
f.write('<body>') | |
f.write('<p>This table lists the value of <code>script_version</code> seen in the <code>esg-node</code> script in the most recently modified version directory inside each snapshot</p>') | |
f.write('<table border="1" cellpadding="5" cellspacing="0"><th>Snapshot</th><th>Master</th><th>Devel</th>') | |
for row in self.get_table_rows(): | |
f.write('<tr>') | |
for cell in row: | |
f.write('<td>' + cell + '</td>') | |
f.write('</tr>') | |
f.write('</table></body></html>\n') | |
f.close() | |
if __name__ == '__main__': | |
sl = SnapshotLister('/path/to/esgf_snapshots/', | |
'http://url.path.to/esgf_snapshots/', | |
verbose=True) | |
sl.make_index() |
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Script to create versions.html
First edit paths on line 99 and 100