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import requests
import subprocess
from pathlib import Path
from pymonad.either import Either, Left
from flask import (Blueprint,
flash,
redirect,
render_template,
request)
from gn2.wqflask.decorators import login_required
metadata = Blueprint("metadata", __name__)
def save_dataset_metadata(
git_dir: str, output: str,
content: str, msg: str
) -> Either:
"""Save dataset metadata to git"""
def __run_cmd(cmd, status_code):
__result = subprocess.run(
cmd.split(" "), shell=True,
capture_output=True
)
if __result.stderr or status_code != 0:
return Left({
"command": cmd,
"error": __result.stderr.decode()
})
return 0
with Path(output) as _f:
_f.write(content)
return (
Either.insert(0)
.then(__run_cmd(f"git -C {git_dir} pull"))
.then(__run_cmd(f"git -C {git_dir} add ."))
.then(__run_cmd(f"git -C {git_dir} commit --all --message {msg}"))
.then(__run_cmd(f"git -C {git_dir} push origin master --dry-run"))
)
@metadata.route("/edit")
@login_required(pagename="Dataset Metadata Editing")
def metadata_edit():
from gn2.utility.tools import GN3_LOCAL_URL
match request.args.get("type"):
case "dcat:Dataset":
metadata = requests.get(
Path(
GN3_LOCAL_URL,
"metadata/datasets/",
(_name := request.args.get("name"))
).as_posix()
).json()
__section = request.args.get("section")
return render_template(
"metadata/editor.html",
name=_name,
metadata=metadata,
section=__section,
edit=metadata.get(__section),
)
@metadata.route("/save", methods=["POST"])
@login_required(pagename="Dataset Metadata Editing")
def save():
from gn2.utility.tools import get_setting
__gn_docs = Path(
get_setting("DATA_DIR"),
"gn-docs"
)
__output = Path(
__gn_docs,
"general/datasets/",
request.form.get("id").split("/")[-1]
)
match request.form.get("type"):
case "dcat:Dataset":
save_dataset_metadata(
git_dir=__gn_docs,
output=__output,
content=request.form.get("editor"),
msg=request.form.get("edit-summary")
).either(
lambda error: flash(
f"{error=}",
"error"
),
lambda x: flash(
"Successfully updated data.",
"success"
)
)
return redirect(
Path("/datasets", request.form.get('label'))
)
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