Release v4.0.0

.github/workflows/reviewdog.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out code.
-        uses: actions/checkout@v1
+        uses: actions/checkout@v4
       - name: misspell
         uses: reviewdog/action-misspell@v1
         with:

.gitignore

@@ -0,0 +1 @@
+.idea

docs/README.md

@@ -4,7 +4,7 @@
 
 ---
 
-Dotenv-linter can [check](/usage/check) / [fix](/usage/fix) / [compare](/usage/compare) `.env` files for problems that may cause the application to malfunction.
+Dotenv-linter can [check](/usage/check) / [fix](/usage/fix) / [diff](/usage/diff) `.env` files for problems that may cause the application to malfunction.
 
 **Available checks**:
 <p>
@@ -16,6 +16,7 @@ Dotenv-linter can [check](/usage/check) / [fix](/usage/fix) / [compare](/usage/c
 &nbsp;&nbsp;&nbsp;&nbsp;✅&nbsp;<a href="#/checks/leading_character">Leading character</a><br />
 &nbsp;&nbsp;&nbsp;&nbsp;✅&nbsp;<a href="#/checks/lowercase_key">Lowercase key</a><br />
 &nbsp;&nbsp;&nbsp;&nbsp;✅&nbsp;<a href="#/checks/quote_character">Quote character</a><br />
+&nbsp;&nbsp;&nbsp;&nbsp;✅&nbsp;<a href="#/checks/schema_violation">Schema violation</a><br />
 &nbsp;&nbsp;&nbsp;&nbsp;✅&nbsp;<a href="#/checks/space_character">Space character</a><br />
 &nbsp;&nbsp;&nbsp;&nbsp;✅&nbsp;<a href="#/checks/substitution_key">Substitution key</a><br />
 &nbsp;&nbsp;&nbsp;&nbsp;✅&nbsp;<a href="#/checks/trailing_whitespace">Trailing whitespace</a><br />

docs/_sidebar.md

@@ -2,7 +2,9 @@
 * [👨‍💻 Installation](installation.md)
 
 * 🎉 What's new?
-    * [v3.3.0 (latest)](whats_new/v330.md)
+    * [v4.0.0 (latest)](whats_new/v400.md)
+    * [v3.3.1](whats_new/v331.md)
+    * [v3.3.0](whats_new/v330.md)
     * [v3.2.0](whats_new/v320.md)
     * [v3.1.1](whats_new/v311.md)
     * [v3.1.0](whats_new/v310.md)
@@ -12,9 +14,8 @@
 
 * 🚀 Usage
     * [✅ Check](usage/check.md)
-    * [🤲 Compare](usage/compare.md)
+    * [🤲 Diff](usage/diff.md)
     * [🛠 Fix](usage/fix.md)
-    * [📄 List](usage/list.md)
 
 * ✅ Checks
     * [Duplicated key](checks/duplicated_key.md)
@@ -25,6 +26,7 @@
     * [Leading character](checks/leading_character.md)
     * [Lowercase key](checks/lowercase_key.md)
     * [Quote character](checks/quote_character.md)
+    * [Schema violation](checks/schema_violation.md)
     * [Space character](checks/space_character.md)
     * [Substitution key](checks/substitution_key.md)
     * [Trailing whitespace](checks/trailing_whitespace.md)

docs/checks/schema_violation.md

@@ -0,0 +1,49 @@
+# Schema violation
+
+`dotenv-linter` can check `.env` files for schema compliance.
+A schema is simply a `JSON` file that describes the names of keys and the format of their values.
+If a key value is of a different type, `dotenv-linter` will display a warning.
+
+Example of the contents of a schema file (the schema file name can be anything):
+```json
+// .schema.env.json
+{
+  "version": "1.0",
+  "entries": {
+    "NAME": {
+      "type": "String",
+      "regex": "^DOT*"
+    },
+    "PORT": {
+      "type": "Integer"
+    },
+    "PRICE": {
+      "type": "Float"
+    },
+    "URL": {
+      "type": "Url"
+    },
+    "EMAIL": {
+      "type": "Email"
+    },
+    "FLAG": {
+      "type": "Boolean"
+    }
+  }
+}
+```
+
+To run `dotenv-linter` using a schema, there is a special argument `--schema` (or its short version `-s`):
+
+```bash
+$ dotenv-linter check --schema .schema.env.json .
+Checking .env
+.env:1 SchemaViolation: The EMAIL key is not a valid email address
+.env:2 SchemaViolation: The FLAG key is not a valid boolean
+.env:3 SchemaViolation: The NAME key does not match the regex
+.env:4 SchemaViolation: The PORT key is not an integer
+.env:5 SchemaViolation: The PRICE key is not a valid float
+.env:6 SchemaViolation: The URL key is not a valid URL
+
+Found 6 problems
+```

docs/usage/check.md

@@ -1,9 +1,9 @@
 # ✅ Check
 
-By default, `dotenv-linter` checks all `.env` files in the current directory:
+`dotenv-linter` can check all `.env` files in a directory:
 
 ```bash
-$ dotenv-linter
+$ dotenv-linter check .
 Checking .env
 .env:2 DuplicatedKey: The FOO key is duplicated
 .env:3 UnorderedKey: The BAR key should go before the FOO key
@@ -17,7 +17,7 @@ Found 3 problems
 To check another directory, just pass its path as an argument. The same approach works if you need to check any files individually:
 
 ```bash
-$ dotenv-linter dir1 dir2/.my-env-file
+$ dotenv-linter check dir1 dir2/.my-env-file
 Checking dir1/.env
 dir1/.env:1 LeadingCharacter: Invalid leading character detected
 dir1/.env:3 IncorrectDelimiter: The FOO-BAR key has incorrect delimiter
@@ -33,7 +33,7 @@ Found 3 problems
 If you need to exclude a file from check, you can use the `--exclude FILE_PATH` argument (or its short version `-e`):
 
 ```bash
-$ dotenv-linter --exclude .env.test
+$ dotenv-linter check --exclude .env.test .
 Checking .env
 .env:2 DuplicatedKey: The FOO key is duplicated
 .env:3 UnorderedKey: The BAR key should go before the FOO key
@@ -46,7 +46,7 @@ Found 2 problems
 If you need a recursive search inside directories (deeper than 1 level), you can use the `--recursive` argument (or its short version `-r`):
 
 ```bash
-$ dotenv-linter --recursive
+$ dotenv-linter check --recursive .
 Checking .env
 Checking dir1/.env
 dir1/.env:2 DuplicatedKey: The FOO key is duplicated
@@ -57,12 +57,12 @@ dir2/subdir/.env:3 IncorrectDelimiter: The FOO-BAR key has incorrect delimiter
 Found 2 problems
 ```
 
-#### Skip checks
+#### Ignore checks
 
-If you need to skip some checks, you can use the `--skip CHECK_NAME` argument (or its short version `-s`):
+If you need to ignore some checks, you can use the `--ignore-checks CHECK_NAME` argument (or its short version `-i`):
 
 ```bash
-$ dotenv-linter --skip UnorderedKey EndingBlankLine
+$ dotenv-linter check --ignore-checks UnorderedKey,EndingBlankLine .
 Checking .env
 .env:2 DuplicatedKey: The FOO key is duplicated
 
@@ -87,18 +87,18 @@ BAR=FOO
 If you want to see only warnings without additional information, use the `--quiet` argument (or its short version `-q`):
 
 ```bash
-$ dotenv-linter --quiet
+$ dotenv-linter check --quiet .
 .env:2 DuplicatedKey: The FOO key is duplicated
 .env:3 UnorderedKey: The BAR key should go before the FOO key
 .env.test:1 LeadingCharacter: Invalid leading character detected
 ```
 
 #### Disable colored output
 
-By default, the output is colored. If you want to disable colored output, you can use the `--no-color` argument:
+By default, the output is colored. If you want to disable colored output, you can use the `--plain` argument:
 
 ```bash
-$ dotenv-linter --no-color
+$ dotenv-linter check --plain .
 .env:2 DuplicatedKey: The FOO key is duplicated
 .env:3 UnorderedKey: The BAR key should go before the FOO key
 .env.test:1 LeadingCharacter: Invalid leading character detected
@@ -112,7 +112,7 @@ By default, `dotenv-linter` checks for a new version once a day.
 If the new version is available, it will display information about it:
 
 ```bash
-$ dotenv-linter
+$ dotenv-linter check .
 .env:2 DuplicatedKey: The FOO key is duplicated
 .env:3 UnorderedKey: The BAR key should go before the FOO key
 .env.test:1 LeadingCharacter: Invalid leading character detected
@@ -123,7 +123,7 @@ A new release of dotenv-linter is available: v3.1.0 -> v3.1.1
 https://github.com/dotenv-linter/dotenv-linter/releases/tag/v3.1.1
 ```
 
-If you want to disable checking for updates, you can use the `--not-check-updates` argument.
+If you want to disable checking for updates, you can use the `--skip-updates` argument.
 
 #### Export prefix
 
@@ -133,3 +133,17 @@ It is possible to use `export` prefix for defined variables. For example, `expor
 
 Some tools use `.env` file names but content of these files is not what `dotenv-linter` expects.<br/>
 Currently `dotenv-linter` doesn't check `.envrc` files because [direnv](https://direnv.net) uses them as bash scripts.
+
+#### Environment variables
+
+Some settings can be controlled via environment variables.
+
+* `DOTENV_LINTER_IGNORE_CHECKS` - disables checks (multiple checks are specified separated by commas):
+```bash
+$ DOTENV_LINTER_IGNORE_CHECKS=QuoteCharacter dotenv-linter check .
+```
+
+* `DOTENV_LINTER_SKIP_UPDATES` - disables checking for updates:
+```bash
+$ DOTENV_LINTER_SKIP_UPDATES=true dotenv-linter check .
+```

docs/usage/diff.md

@@ -0,0 +1,17 @@
+# 🤲 Diff
+
+`dotenv-linter` can compare `.env` files with each other and output the difference between them with the `diff` command:
+
+```bash
+$ dotenv-linter diff .env .env.example
+Comparing .env
+Comparing .env.example
+.env is missing keys: BAR
+.env.example is missing keys: FOO
+```
+
+#### Additional arguments
+
+In addition, the `diff` command supports the following list of arguments:
+* [--quiet](/usage/check?id=quiet-mode)
+* [--plain](/usage/check?id=disable-colored-output)

docs/usage/fix.md

@@ -1,9 +1,9 @@
 # 🛠 Fix
 
-`dotenv-linter` can also fix the found warnings with the `fix` command (or its short version `f`):
+`dotenv-linter` can also fix the found warnings with the `fix` command:
 
 ```bash
-$ dotenv-linter fix
+$ dotenv-linter fix .
 Fixing .env
 Original file was backed up to: ".env_1601378896"
 
@@ -18,19 +18,38 @@ All warnings are fixed. Total: 2
 By default, `fix` creates backups of files. If you want to disable the backup function, use the argument `--no-backup`:
 
 ```bash
-$ dotenv-linter fix --no-backup
+$ dotenv-linter fix --no-backup .
 Fixing .env
 .env:2 DuplicatedKey: The BAR key is duplicated
 .env:3 LowercaseKey: The foo key should be in uppercase
 
 All warnings are fixed. Total: 2
 ```
 
-#### Addition arguments
+#### Dry run
+
+If you want to run `fix` without modifying any files on disk, use the `--dry-run` flag.
+
+```bash
+$ dotenv-linter fix --dry-run .
+Fixing .env
+Dry run - not changing any files on disk.
+
+BAR=bar_example_one
+# BAR=bar_example_two
+FOO=foo_example
+
+.env:2 DuplicatedKey: The BAR key is duplicated
+.env:3 LowercaseKey: The foo key should be in uppercase
+
+All warnings are fixed. Total: 2
+```
+
+#### Additional arguments
 
 In addition, the `fix` command supports the following list of arguments:
 * [--exclude](/usage/check?id=exclude-files)
 * [--recursive](/usage/check?id=recursive-check)
-* [--skip](/usage/check?id=skip-checks)
+* [--ignore-checks](/usage/check?id=ignore-checks)
 * [--quiet](/usage/check?id=quiet-mode)
-* [--no-color](/usage/check?id=disable-colored-output)
+* [--plain](/usage/check?id=disable-colored-output)

docs/whats_new/v331.md

@@ -0,0 +1,22 @@
+# What's new in v3.3.1?
+
+Here's an overview of the key changes included in this release.
+
+### 1. Fix docker image for `arm64`
+
+PR: [#757](https://github.com/dotenv-linter/dotenv-linter/pull/757) ([@harryzcy](https://github.com/harryzcy))
+
+### 2. Add `--dry-run` option to the "fix" subcommand
+
+PR: [#772](https://github.com/dotenv-linter/dotenv-linter/pull/772) ([@Dev380](https://github.com/Dev380))
+
+These are all the key changes that are included in the new `v3.3.1` release.<br/>
+Thanks to everyone who contributed 🙏
+
+---
+
+How you can support the project 😉
+
+* Star on [GitHub](https://github.com/dotenv-linter/dotenv-linter) ⭐️
+* Become a sponsor on [GitHub Sponsors](https://github.com/sponsors/dotenv-linter) or [OpenCollective](https://opencollective.com/dotenv-linter) ❤️
+* Contribute to the [dotenv-linter](https://github.com/dotenv-linter/dotenv-linter/blob/master/CONTRIBUTING.md) ⚙️