laskoviymishka commented on code in PR #1094:
URL: https://github.com/apache/iceberg-go/pull/1094#discussion_r3269107917


##########
table/testdata/geo/gen_fixtures.sh:
##########
@@ -0,0 +1,62 @@
+#!/usr/bin/env bash

Review Comment:
   Could we wire this up via `//go:generate` to match the existing convention 
in the repo? `puffin/gen_dv_fixture.go` + `puffin/dv_golden_test.go` set the 
pattern for fixture generators, and `exprs.go` does it for stringer — both run 
via `go generate ./...`.
   
   Doesn't have to be a Go program — `//go:generate bash gen_fixtures.sh` is 
totally fine and keeps the shell script as-is. The win is discoverability: 
contributors find fixture regeneration through `go generate`, not by spelunking 
through `table/testdata/geo/` looking for a script.



##########
table/testdata/geo/gen_fixtures.sh:
##########
@@ -0,0 +1,62 @@
+#!/usr/bin/env bash
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+set -euo pipefail
+
+# Pin to the specific commit for reproducibility
+# If there are changes to the data, this can be bumped
+REF="d1f14a06f800238b127b51fef6fa6b9feb15ab0b"
+API_URL="https://api.github.com/repos/apache/parquet-testing/contents/data/geospatial?ref=${REF}";
+README="README.md"
+
+START_MARKER="<!-- BEGIN GENERATED FIXTURE LINKS -->"
+
+JSON="$(curl -s "$API_URL")"
+
+# Download all the parquet fixtures, not the associated config files
+# or generation scripts
+printf '%s\n' "$JSON" \
+  | jq -r '.[] | .download_url' \
+  | grep '\.parquet$' \
+  | xargs -n 1 wget -N

Review Comment:
   Three small portability nits in the script that'll bite the next contributor:
   
   - No `cd "$(dirname "$0")"` at the top — running from anywhere else drops 
files in the caller's cwd
   - `wget` / `wget -N` isn't installed on macOS by default and is GNU-only; 
`curl -fLO --time-cond` is the portable equivalent
   - `curl -s` on line 30 swallows GitHub API rate-limit errors silently — 
`$JSON` becomes an error envelope, jq returns nothing, and the README gets 
rewritten with an empty fixture list under `set -e`. `curl -fsS` lets the 
failure propagate.



##########
table/testdata/geo/README.md:
##########
@@ -0,0 +1,39 @@
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+# Geopatial Parquet Fixtures from 
[parquet-testing](https://github.com/apache/parquet-testing)

Review Comment:
   Nit — "Geopatial" → "Geospatial" (spelled correctly two lines down).



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