main..55998ba · reshape

git.iko.soy/reshape

on 55998ba help sign in

.github/workflows/lint.yaml+3−3

since splitsnapshots

unifiedsplit

@@ -15,7 +15,7 @@ jobs:

15 runs-on: ubuntu-latest

16 steps:

17 - name: Checkout

18− uses: actions/checkout@v4

18+ uses: actions/checkout@v2

19 - name: Select Rust toolchain with Clippy

20 uses: actions-rs/toolchain@v1

21 with:

@@ -23,6 +23,6 @@ jobs:

23 components: clippy

24 override: true

25 - name: Use cache for Rust dependencies

26− uses: Swatinem/rust-cache@v2

26+ uses: Swatinem/rust-cache@v1

27 - name: Lint using Clippy

28− run: cargo clippy

28+ run: cargo clippy

.github/workflows/publish-crate.yamldeleted−20

@@ -1,20 +0,0 @@

1−name: Publish crate

2−

3−on: workflow_dispatch

4−

5−jobs:

6− publish-crate:

7− runs-on: ubuntu-latest

8− steps:

9− - name: Checkout

10− uses: actions/checkout@v2

11− - name: Select Rust toolchain

12− uses: actions-rs/toolchain@v1

13− with:

14− toolchain: stable

15− - name: Publish to crates.io

16− uses: actions-rs/cargo@v1

17− with:

18− command: publish

19− env:

20− CARGO_REGISTRY_TOKEN: ${{ secrets.CRATES_IO_TOKEN }}

.github/workflows/publish-docker.yamldeleted−25

@@ -1,25 +0,0 @@

1−name: Publish Docker image

2−

3−on:

4− workflow_dispatch:

5− inputs:

6− version:

7− description: "Version (without 'v' prefix)"

8− required: true

9− type: string

10−

11−jobs:

12− publish-docker:

13− runs-on: ubuntu-latest

14− steps:

15− - name: Checkout

16− uses: actions/checkout@v2

17− - name: Log in to Docker

18− env:

19− DOCKER_PASSWORD: ${{ secrets.DOCKER_ACCESS_TOKEN }}

20− run: |

21− docker login -u ${{ secrets.DOCKER_USER }} -p $DOCKER_PASSWORD

22− - name: Build Docker image

23− run: docker build . --tag ${{ secrets.DOCKER_USER }}/reshape:${{ inputs.version }} --tag ${{ secrets.DOCKER_USER }}/reshape:latest

24− - name: Push Docker image

25− run: docker push --all-tags ${{ secrets.DOCKER_USER }}/reshape

Cargo.toml+3−3

@@ -1,6 +1,6 @@

1[package]

2name = "reshape"

3−version = "0.7.0"

3+version = "0.6.1"

4description = "An easy-to-use, zero-downtime schema migration tool for Postgres"

5homepage = "https://github.com/fabianlindfors/reshape"

6documentation = "https://github.com/fabianlindfors/reshape"

@@ -9,7 +9,7 @@ license = "MIT"

9keywords = ["postgres", "migrations"]

10edition = "2021"

11authors = ["Fabian Lindfors"]

12−rust-version = "1.70"

12+rust-version = "1.58"

14[dependencies]

15postgres = { version = "0.19.2", features = ["with-serde_json-1"] }

@@ -23,4 +23,4 @@ version = "3.0.0"

23colored = "2"

24rand = "0.8"

25dotenv = "0.15.0"

26−lexical-sort = "0.3.1"

26+lexical-sort = "0.3.1"

Dockerfile+1−1

@@ -1,4 +1,4 @@

1−FROM rust:1.70.0 AS builder

1+FROM rust:1.58.0 AS builder

2WORKDIR /usr/src/reshape

3COPY . .

4RUN cargo build --release

README.md+11−12

@@ -627,6 +627,17 @@ The `up` and `down` options available when creating tables, adding columns and r

627_Example: move `email` column from `users` to `profiles` table_

628

629```toml

630+[[actions]]

631+type = "remove_column"

632+table = "users"

633+column = "email"

634+

635+ # When `profiles` is changed in the new schema, we write the email address back to the removed column

636+ [actions.down]

637+ table = "profiles"

638+ value = "profiles.email"

639+ where = "users.id = profiles.user_id"

640+

630[[actions]]

641[[actions]]

631type = "add_column"

642type = "add_column"

632table = "profiles"

643table = "profiles"

@@ -641,17 +652,6 @@ table = "profiles"

641 table = "users"

652 table = "users"

642 value = "users.email"

653 value = "users.email"

643 where = "profiles.user_id = users.id"

654 where = "profiles.user_id = users.id"

644−

645−[[actions]]

646−type = "remove_column"

647−table = "users"

648−column = "email"

649−

650− # When `profiles` is changed in the new schema, we write the email address back to the removed column

651− [actions.down]

652− table = "profiles"

653− value = "profiles.email"

654− where = "users.id = profiles.user_id"

655```

656

657_Example: turn a 1:N relationship between `users` and `accounts` into N:M and change the format of the associated `role`_

@@ -675,7 +675,6 @@ primary_key = ["account_id", "user_id"]

675 [[actions.columns]]

676 name = "role"

677 type = "TEXT"

678− nullable = false

679

678

680 # Backfill the new table from `users` and uppercase the `role`

679 # Backfill the new table from `users` and uppercase the `role`

681 [actions.up]

680 [actions.up]

src/migrations/add_column.rs+3−3

@@ -81,7 +81,7 @@ impl Action for AddColumn {

81 let temp_column_name = self.temp_column_name(ctx);

83 let mut definition_parts = vec![

84− format!("\"{}\"", temp_column_name.to_string()),

84+ temp_column_name.to_string(),

85 self.column.data_type.to_string(),

86 ];

@@ -111,7 +111,7 @@ impl Action for AddColumn {

111 .iter()

112 .map(|column| {

113 format!(

114− "\"{alias}\" public.{table}.{real_name}%TYPE := NEW.{real_name};",

114+ "{alias} public.{table}.{real_name}%TYPE := NEW.{real_name};",

115 table = table.real_name,

116 alias = column.name,

117 real_name = column.real_name,

@@ -131,7 +131,7 @@ impl Action for AddColumn {

131 DECLARE

132 {declarations}

133 BEGIN

134− NEW."{temp_column_name}" = {up};

134+ NEW.{temp_column_name} = {up};

135 END;

136 END IF;

137 RETURN NEW;

src/migrations/remove_column.rs+18−78

@@ -43,7 +43,7 @@ impl RemoveColumn {

43 )

44 }

46− fn not_null_constraint_trigger_name(&self, ctx: &MigrationContext) -> String {

46+ fn null_constraint_trigger_name(&self, ctx: &MigrationContext) -> String {

47 format!(

48 "{}_remove_column_{}_{}_nn",

49 ctx.prefix(),

@@ -51,15 +51,6 @@ impl RemoveColumn {

51 self.column

52 )

53 }

54−

55− fn not_null_constraint_name(&self, ctx: &MigrationContext) -> String {

56− format!(

57− "{}_add_column_not_null_{}_{}",

58− ctx.prefix(),

59− self.table,

60− self.column

61− )

62− }

63}

54}

65#[typetag::serde(name = "remove_column")]

56#[typetag::serde(name = "remove_column")]

@@ -141,7 +132,6 @@ impl Action for RemoveColumn {

141

132

142 let maybe_null_check = if !column.nullable {

133 let maybe_null_check = if !column.nullable {

143 // Replace NOT NULL constraint with a constraint trigger that only triggers on the old schema.

134 // Replace NOT NULL constraint with a constraint trigger that only triggers on the old schema.

144− // We will add a null check to the down function on the new schema below as well to cover both cases.

145 // As we are using a complex down function, we must remove the NOT NULL check for the new schema.

135 // As we are using a complex down function, we must remove the NOT NULL check for the new schema.

146 // NOT NULL is not checked at the end of a transaction, but immediately upon update.

136 // NOT NULL is not checked at the end of a transaction, but immediately upon update.

147 let query = format!(

137 let query = format!(

@@ -167,7 +157,7 @@ impl Action for RemoveColumn {

167 EXECUTE PROCEDURE {trigger_name}();

157 EXECUTE PROCEDURE {trigger_name}();

168 "#,

158 "#,

169 table = self.table,

159 table = self.table,

170− trigger_name = self.not_null_constraint_trigger_name(ctx),

160+ trigger_name = self.null_constraint_trigger_name(ctx),

171 column = self.column,

161 column = self.column,

172 );

162 );

173 db.run(&query)

163 db.run(&query)

@@ -246,6 +236,7 @@ impl Action for RemoveColumn {

246 from_table_real = from_table.real_name,

236 from_table_real = from_table.real_name,

247 column_name = self.column,

237 column_name = self.column,

248 trigger_name = self.trigger_name(ctx),

238 trigger_name = self.trigger_name(ctx),

239+ // declarations = declarations.join("\n"),

249 );

240 );

250 db.run(&query).context("failed to create down trigger")?;

241 db.run(&query).context("failed to create down trigger")?;

251

242

@@ -319,6 +310,8 @@ impl Action for RemoveColumn {

319 }

310 }

320 }

311 }

321

312

313+ if !column.nullable {}

314+

322 Ok(())

315 Ok(())

323 }

316 }

324

317

@@ -354,7 +347,7 @@ impl Action for RemoveColumn {

354 column = self.column,

347 column = self.column,

355 trigger_name = self.trigger_name(ctx),

348 trigger_name = self.trigger_name(ctx),

356 reverse_trigger_name = self.reverse_trigger_name(ctx),

349 reverse_trigger_name = self.reverse_trigger_name(ctx),

357− null_trigger_name = self.not_null_constraint_trigger_name(ctx),

350+ null_trigger_name = self.null_constraint_trigger_name(ctx),

358 );

351 );

359 db.run(&query)

352 db.run(&query)

360 .context("failed to drop column and down trigger")?;

353 .context("failed to drop column and down trigger")?;

@@ -371,70 +364,17 @@ impl Action for RemoveColumn {

371 }

364 }

372

365

373 fn abort(&self, ctx: &MigrationContext, db: &mut dyn Conn) -> anyhow::Result<()> {

366 fn abort(&self, ctx: &MigrationContext, db: &mut dyn Conn) -> anyhow::Result<()> {

374− // We might have temporaily removed the NOT NULL check and have to reinstate it

367+ // We might have removed the NOT NULL check so we reinstate it

375− let has_not_null_function = !db

376− .query_with_params(

377− "

378− SELECT routine_name

379− FROM information_schema.routines

380− WHERE routine_schema = 'public'

381− AND routine_name = $1

382− ",

383− &[&self.not_null_constraint_trigger_name(ctx)],

384− )

385− .context("failed to get any NOT NULL function")?

386− .is_empty();

387−

388− if has_not_null_function {

389− // Make column NOT NULL again without taking any long lived locks with a temporary constraint

390− let query = format!(

391− r#"

392− ALTER TABLE "{table}"

393− ADD CONSTRAINT "{constraint_name}"

394− CHECK ("{column}" IS NOT NULL) NOT VALID

395− "#,

396− table = self.table,

397− constraint_name = self.not_null_constraint_name(ctx),

398− column = self.column,

399− );

400− db.run(&query)

401− .context("failed to add NOT NULL constraint")?;

402−

403− let query = format!(

368+ db.run(&format!(

404− r#"

369+ r#"

405− ALTER TABLE "{table}"

370+ ALTER TABLE {table}

406− VALIDATE CONSTRAINT "{constraint_name}"

407− "#,

408− table = self.table,

409− constraint_name = self.not_null_constraint_name(ctx),

410− );

411− db.run(&query)

412− .context("failed to validate NOT NULL constraint")?;

413−

414− // This ALTER TABLE call will not require any exclusive locks as it can use the validated constraint from above

415− db.run(&format!(

416− r#"

417− ALTER TABLE {table}

418− ALTER COLUMN {column}

371+ ALTER COLUMN {column}

419− SET NOT NULL

372+ SET NOT NULL

420− "#,

373+ "#,

421− table = self.table,

374+ table = self.table,

422− column = self.column

375+ column = self.column

423− ))

376+ ))

424− .context("failed to reinstate column NOT NULL")?;

377+ .context("failed to reinstate column not null constraint")?;

425−

426− // Drop the temporary constraint

427− let query = format!(

428− r#"

429− ALTER TABLE "{table}"

430− DROP CONSTRAINT "{constraint_name}"

431− "#,

432− table = self.table,

433− constraint_name = self.not_null_constraint_name(ctx),

434− );

435− db.run(&query)

436− .context("failed to drop NOT NULL constraint")?;

437− }

438

378

439 // Remove function and trigger

379 // Remove function and trigger

440 db.run(&format!(

380 db.run(&format!(

@@ -445,7 +385,7 @@ impl Action for RemoveColumn {

445 "#,

385 "#,

446 trigger_name = self.trigger_name(ctx),

386 trigger_name = self.trigger_name(ctx),

447 reverse_trigger_name = self.reverse_trigger_name(ctx),

387 reverse_trigger_name = self.reverse_trigger_name(ctx),

448− null_trigger_name = self.not_null_constraint_trigger_name(ctx),

388+ null_trigger_name = self.null_constraint_trigger_name(ctx),

449 ))

389 ))

450 .context("failed to drop down trigger")?;

390 .context("failed to drop down trigger")?;

451

391

tests/complex.rs+1−1

@@ -52,7 +52,7 @@ fn move_column_between_tables() {

52 nullable = false

54 # When `users` is updated in the old schema, we write the email value to `profiles`

55− # When `profiles` is updated in the old schema, the equivalent `users.email` will also be updated

55+ # When `profiles` is updated in the old schema, we touch the equivalent `users` row to update it

56 [actions.up]

57 table = "users"

58 value = "users.email"