Update diesel packages to v2.1.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
diesel (source)	build-dependencies	minor	=2.0.4 -> =2.1.0
diesel (source)	dependencies	minor	=2.0.4 -> =2.1.0
diesel_cli (source)		minor	2.0.1 -> 2.1.0
diesel_full_text_search	dependencies	minor	=2.0.0 -> =2.1.0
diesel_migrations	build-dependencies	minor	=2.0.0 -> =2.1.0
diesel_migrations	dependencies	minor	=2.0.0 -> =2.1.0

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Release Notes

diesel-rs/diesel

v2.1.0

Compare Source

Changed

• The minimal officially supported rustc version is now 1.65.0

Added

• Added the custom_type_derives config option to customize the derives for SQL
  type definitions automatically generated by Diesel CLI.
• Add a #[derive(MultiConnection)] proc-macro that lets you easily implement diesel::Connection
  for an enum of connections to different database backends.
• Added a --diff-schema flag to the diesel migration generate command that generates a migration based
  on the difference between your database and the provided schema.rs file
• Add a ON CONFLICT (...) DO UPDATE ... [WHERE ...] conditional clause support for PostgreSQL.
• Add support for MySQL's ON DUPLICATE KEY DO UPDATE syntax through the existing upsert functions.
• Add ability to define multiple columns in a single distinct_on for PostgreSQL,
  like: .distinct_on((column_a, column_b)).
• Added column size restrictions to the generated schema.rs file

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[Turbo87]

@weiznich any clue why the migration stuff on CI might have failed due to this update?

[weiznich]

Likely because the generated schema.rs file contains new information and now the provided patch file does not apply without conflicts anymore. You need to regenerate the patch file in that case. Usually that involves the following steps:

• Removing the patch file from the diesel.toml file
• Regenerate a unpatched schema.rs file.
• Apply the patch file via command line and resolve the merge conflicts
• Regenerate the patch file and re-enable it in the diesel.toml file

(I should probably try if we can improve that process on diesels side)

[Turbo87]

ahhhh, that explains it. thank you. would it be possible to improve the error message somehow to explicitly mention the patch file? :)

[renovate]

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[Turbo87]

for my future self or anyone else reading this:

1. prefix patch_file = "src/schema.patch" in diesel.toml with a # to comment it out.
2. use diesel print-schema and save the output to src/schema.rs.orig
3. use patch -o src/schema.rs src/schema.rs.orig src/schema.patch to apply the patch file and solve remaining issues in the src/schema.rs file
4. use diff -Naur src/schema.rs.orig src/schema.rs to generate the new content for the src/schema.patch file
5. enable the patch_file option in the diesel.toml file again.