https://github.com/thulio/ecto_diff_migrate
https://github.com/thulio/ecto_diff_migrate
Last synced: about 1 year ago
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- Host: GitHub
- URL: https://github.com/thulio/ecto_diff_migrate
- Owner: thulio
- Created: 2020-05-09T18:06:53.000Z (about 6 years ago)
- Default Branch: master
- Last Pushed: 2020-05-11T03:47:02.000Z (about 6 years ago)
- Last Synced: 2025-03-27T04:11:58.726Z (about 1 year ago)
- Language: Elixir
- Size: 8.79 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# EctoDiffMigrate
`EctoDiffMigrate` [(documentation)](https://hexdocs.pm/ecto_diff_migrate) keeps track of database structure changes
through diff files.
Diff files make easier for a developer or database
administrator see and evaluate those changes before aplying them
to a production database.
## Installation
Add to your mix.exs:
```elixir
def deps do
[
{:ecto_diff_migrate, "~> 0.1.0"}
]
end
```
`EctoDiffMigrate` uses `Mix.Tasks.Ecto.Dump` under the hood and
it requires `pg_dump` to be installed. `pg_dump` is (usually)
bundled within `postgresql-client` package in most Linux distributions.
## How to use
`EctoDiffMigrate` provides a mix task `mix ecto.diff.migrate`.
It expects an output directory (`--diff-output-dir`) to put the diff files in:
```shell
mix ecto.diff.migrate --diff-output-dir sql_diffs
```
```diff
31a32,66
> -- Name: table; Type: TABLE; Schema: public; Owner: -
> --
>
> CREATE TABLE public."table" (
> id bigint NOT NULL
> );
>
>
> --
> -- Name: table_id_seq; Type: SEQUENCE; Schema: public; Owner: -
> --
>
> CREATE SEQUENCE public.table_id_seq
> START WITH 1
> INCREMENT BY 1
> NO MINVALUE
> NO MAXVALUE
> CACHE 1;
>
>
> --
> -- Name: table_id_seq; Type: SEQUENCE OWNED BY; Schema: public; Owner: -
> --
>
> ALTER SEQUENCE public.table_id_seq OWNED BY public."table".id;
>
>
> --
> -- Name: table id; Type: DEFAULT; Schema: public; Owner: -
> --
>
> ALTER TABLE ONLY public."table" ALTER COLUMN id SET DEFAULT nextval('public.table_id_seq'::regclass);
>
>
> --
39a75,82
> -- Name: table table_pkey; Type: CONSTRAINT; Schema: public; Owner: -
> --
>
> ALTER TABLE ONLY public."table"
> ADD CONSTRAINT table_pkey PRIMARY KEY (id);
>
>
> --
42a86,87
> INSERT INTO public."schema_migrations" (version) VALUES (20200509171630);
>
```
```diff
36c36,37
< id bigint NOT NULL
---
> id bigint NOT NULL,
> "column" character varying(255)
86c87
< INSERT INTO public."schema_migrations" (version) VALUES (20200509171630);
---
> INSERT INTO public."schema_migrations" (version) VALUES (20200509171630), (20200509175658);
```