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Add $LOOKUP(<lookup plugin>,<data>) as a templating option

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Also moves file and pipe to lookup_plugins.
This commit is contained in:
Daniel Hokka Zakrisson 2012-11-01 11:06:55 +01:00
parent 176cc8380b
commit 47082a9171
6 changed files with 113 additions and 24 deletions
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32
lib/ansible/utils/template.py
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@ -141,8 +141,9 @@ def varReplace(raw, vars, depth=0, expand_lists=False):
return ''.join(done)
_FILEPIPECRE = re.compile(r"\$(?P<special>FILE|PIPE)\(([^\)]+)\)")
def _varReplaceFilesAndPipes(basedir, raw):
_FILEPIPECRE = re.compile(r"\$(?P<special>FILE|PIPE|LOOKUP)\(([^\)]+)\)")
def _varReplaceFilesAndPipes(basedir, raw, vars):
from ansible import utils
done = [] # Completed chunks to return
while raw:
@ -156,21 +157,18 @@ def _varReplaceFilesAndPipes(basedir, raw):
replacement = m.group()
if m.group(1) == "FILE":
from ansible import utils
path = utils.path_dwim(basedir, m.group(2))
try:
f = open(path, "r")
replacement = f.read()
f.close()
except IOError:
raise errors.AnsibleError("$FILE(%s) failed" % path)
module_name = "file"
args = m.group(2)
elif m.group(1) == "PIPE":
p = subprocess.Popen(m.group(2), shell=True, stdout=subprocess.PIPE)
(stdout, stderr) = p.communicate()
if p.returncode == 0:
replacement = stdout
else:
raise errors.AnsibleError("$PIPE(%s) returned %d" % (m.group(2), p.returncode))
module_name = "pipe"
args = m.group(2)
elif m.group(1) == "LOOKUP":
module_name, args = m.group(2).split(",", 1)
args = args.strip()
instance = utils.plugins.lookup_loader.get(module_name, basedir=basedir)
replacement = instance.run(args, inject=vars)
if not isinstance(replacement, basestring):
replacement = ",".join(replacement)
start, end = m.span()
done.append(raw[:start]) # Keep stuff leading up to token
@ -211,7 +209,7 @@ def template(basedir, text, vars, expand_lists=False):
except UnicodeEncodeError:
pass # already unicode
text = varReplace(unicode(text), vars, expand_lists=expand_lists)
text = _varReplaceFilesAndPipes(basedir, text)
text = _varReplaceFilesAndPipes(basedir, text, vars)
return text
def template_from_file(basedir, path, vars):