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import os
from .config import Configuration
from .utils import do, trace, data_from_mime, has_command
from .version import meta, tags_to_versions
def _hg_tagdist_normalize_tagcommit(config, tag, dist, node, branch):
dirty = node.endswith("+")
node = "h" + node.strip("+")
# Detect changes since the specified tag
revset = (
"(branch(.)" # look for revisions in this branch only
" and tag({tag!r})::." # after the last tag
# ignore commits that only modify .hgtags and nothing else:
" and (merge() or file('re:^(?!\\.hgtags).*$'))"
" and not tag({tag!r}))" # ignore the tagged commit itself
).format(
tag=tag
)
if tag != "0.0":
commits = do(
["hg", "log", "-r", revset, "--template", "{node|short}"],
config.absolute_root,
)
else:
commits = True
trace("normalize", locals())
if commits or dirty:
return meta(
tag, distance=dist, node=node, dirty=dirty, branch=branch, config=config
)
else:
return meta(tag, config=config)
def parse(root, config=None):
if not config:
config = Configuration(root=root)
if not has_command("hg"):
return
identity_data = do("hg id -i -b -t", config.absolute_root).split()
if not identity_data:
return
node = identity_data.pop(0)
branch = identity_data.pop(0)
if "tip" in identity_data:
# tip is not a real tag
identity_data.remove("tip")
tags = tags_to_versions(identity_data)
dirty = node[-1] == "+"
if tags:
return meta(tags[0], dirty=dirty, branch=branch, config=config)
if node.strip("+") == "0" * 12:
trace("initial node", config.absolute_root)
return meta("0.0", config=config, dirty=dirty, branch=branch)
try:
tag = get_latest_normalizable_tag(config.absolute_root)
dist = get_graph_distance(config.absolute_root, tag)
if tag == "null":
tag = "0.0"
dist = int(dist) + 1
return _hg_tagdist_normalize_tagcommit(config, tag, dist, node, branch)
except ValueError:
pass # unpacking failed, old hg
def get_latest_normalizable_tag(root):
# Gets all tags containing a '.' (see #229) from oldest to newest
cmd = [
"hg", "log", "-r", "ancestors(.) and tag('re:\\.')", "--template", "{tags}\n"
]
outlines = do(cmd, root).split()
if not outlines:
return "null"
tag = outlines[-1].split()[-1]
return tag
def get_graph_distance(root, rev1, rev2="."):
cmd = ["hg", "log", "-q", "-r", "%s::%s" % (rev1, rev2)]
out = do(cmd, root)
return len(out.strip().splitlines()) - 1
def archival_to_version(data, config=None):
trace("data", data)
node = data.get("node", "")[:12]
if node:
node = "h" + node
if "tag" in data:
return meta(data["tag"], config=config)
elif "latesttag" in data:
return meta(
data["latesttag"],
distance=data["latesttagdistance"],
node=node,
config=config,
)
else:
return meta("0.0", node=node, config=config)
def parse_archival(root, config=None):
archival = os.path.join(root, ".hg_archival.txt")
data = data_from_mime(archival)
return archival_to_version(data, config=config)