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import os
import json
class NpmWorkspace(object):
@classmethod
def load(cls, path):
ws = cls(path)
ws.read()
return ws
def __init__(self, path):
if not os.path.isabs(path):
raise TypeError("Absolute path required, given: {}".format(path))
self.path = path
# NOTE: pnpm requires relative workspace paths.
self.packages = set()
def read(self):
with open(self.path) as f:
parsed = json.load(f) or {}
self.packages = set(parsed.get("workspaces", []))
def write(self, path=None):
if not path:
path = self.path
with open(path, "w") as f:
data = {
"workspaces": list(self.packages),
}
json.dump(data, f, indent=2)
def get_paths(self, base_path=None, ignore_self=False):
"""
Returns absolute paths of the workspace packages.
:param base_path: base path to resolve relative dep paths
:type base_path: str
:param ignore_self: whether path of the current module will be excluded (if present)
:type ignore_self: bool
:rtype: list of str
"""
if base_path is None:
base_path = os.path.dirname(self.path)
return [
os.path.normpath(os.path.join(base_path, pkg_path))
for pkg_path in self.packages
if not ignore_self or pkg_path != "."
]
def set_from_package_json(self, package_json):
"""
Sets packages to "workspace" deps from given package.json.
:param package_json: package.json of workspace
:type package_json: PackageJson
"""
if os.path.dirname(package_json.path) != os.path.dirname(self.path):
raise TypeError(
"package.json should be in workspace directory {}, given: {}".format(
os.path.dirname(self.path), package_json.path
)
)
self.packages = set(path for _, path in package_json.get_workspace_dep_spec_paths())
def merge(self, ws):
# type: (NpmWorkspace) -> None
"""
Adds `ws`'s packages to the workspace.
:param ws: workspace to merge
"""
dir_path = os.path.dirname(self.path)
ws_dir_path = os.path.dirname(ws.path)
for p_rel_path in ws.packages:
p_path = os.path.normpath(os.path.join(ws_dir_path, p_rel_path))
self.packages.add(os.path.relpath(p_path, dir_path))
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