Introduce scripts to sync gitignore rules for .source files

.circleci/config.yml

@@ -64,6 +64,12 @@ jobs:
       - run:
           name: 'Check if changed'
           command: git diff --exit-code
+      - run:
+          name: 'Check for gitignore entries .for source files'
+          command: ci/fix_gitignore.sh
+      - run:
+          name: 'Check if changed'
+          command: git diff --exit-code
       - run:
           name: 'Check for lengths of changelog entries'
           command: ci/disallow_long_changelog_entries.sh

ci/README.md

@@ -346,3 +346,9 @@ foo = 2
 #endif
 ```
 This was deemed to be error prone and not worth the effort.
+
+## `fix_gitignore.sh`
+
+This script makes sure that git ignores the sql files and expected output files
+that are generated from `.source` template files. If you created or deleted a
+`.source` file in a commit, git ignore rules should be updated.

ci/fix_gitignore.sh

@@ -0,0 +1,20 @@
+#! /bin/bash
+# shellcheck disable=SC2012
+
+set -euo pipefail
+# shellcheck disable=SC1091
+source ci/ci_helpers.sh
+
+# We list all the .source files in alphabetical order, and do a substitution
+# before writing the resulting file names that are created by those templates in
+# relevant .gitignore files
+#
+# 1. Capture the file name without the .source extension
+# 2. Add the desired extension at the end
+# 3. Add a / character at the beginning of each line to conform to .gitignore file format
+#
+# e.g. multi_copy.source -> /multi_copy.sql
+ls -1 src/test/regress/input | sed -E "s#(.*)\.source#/\1.sql#" > src/test/regress/sql/.gitignore
+
+# e.g. multi_copy.source -> /multi_copy.out
+ls -1 src/test/regress/output | sed -E "s#(.*)\.source#/\1.out#" > src/test/regress/expected/.gitignore

ci/fix_style.sh

@@ -14,3 +14,4 @@ ci/remove_useless_declarations.sh
 ci/disallow_c_comments_in_migrations.sh
 ci/disallow_long_changelog_entries.sh
 ci/normalize_expected.sh
+ci/fix_gitignore.sh