README.md

@@ -15,6 +15,8 @@ These formats are supported for now: `http`, `curl`, `wget`.
 ## Supported features
 
 * [collection schema **v2.1**](https://schema.postman.com/json/collection/v2.1.0/collection.json);
+* `Bearer` auth;
+* replace vars in requests by stored in collection and environment file;
 * export one or several collections (or even whole directories) into one or all of formats supported at the same time;
 * all headers (including disabled for `http`-format);
 * `json` body (forces header `Content-Type` to `application/json`);
@@ -22,12 +24,10 @@ These formats are supported for now: `http`, `curl`, `wget`.
 
 ## Planned features
 
-- support as many as possible/necessary of authentication kinds (_currently no ones_);
+- support as many as possible/necessary of authentication kinds (_currently only `Bearer` supported_);
 - support as many as possible/necessary of body formats (_currently only `json` and `formdata`_);
 - documentation generation support (markdown) with responce examples (if present);
 - maybe some another convert formats (like httpie or something...);
-- replace `{{vars}}` from folder;
-- replace `{{vars}}` from environment;
 - better logging;
 - tests, phpcs, psalm, etc.;
 - web version.
@@ -61,15 +61,19 @@ Possible ARGUMENTS:
         -f, --file       - a PATH to single collection located in PATH to convert from
         -d, --dir        - a directory with collections located in COLLECTION_FILEPATH to convert from
         -o, --output     - a directory OUTPUT_PATH to put results in
+        -e, --env        - use environment file with variable values to replace in request
         -p, --preserve   - do not delete OUTPUT_PATH (if exists)
         -h, --help       - show this help message and exit
         -v, --version    - show version info and exit
 
-If both -c and -d are specified then only unique set of files will be converted.
+If no ARGUMENTS passed then --help implied.
+If both -f and -d are specified then only unique set of files will be converted.
 -f or -d are required to be specified at least once, but each may be specified multiple times.
 PATH must be a valid path to readable json-file or directory.
 OUTPUT_PATH must be a valid path to writeable directory.
-If -o is specified several times then only last one will be applied.
+If -o is specified several times then only last one will be used.
+If -e is specified several times then only last one will be used.
+If -e is not specified then only collection vars will be replaced (if any).
 
 Possible FORMATS:
         --http   - generate raw *.http files (default)
@@ -83,8 +87,10 @@ Example:
         -f ~/dir1/first.postman_collection.json \ 
         --directory ~/team \ 
         --file ~/dir2/second.postman_collection.json \ 
+        --env ~/localhost.postman_environment.json \ 
         -d ~/personal \ 
         -o ~/postman_export 
+
 ```
 ### Notice
 

src/Environment.php

@@ -0,0 +1,65 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PmConverter;
+
+class Environment implements \ArrayAccess
+{
+    /**
+     * @var array
+     */
+    protected array $vars = [];
+
+    /**
+     * @param object $env
+     */
+    public function __construct(protected object $env)
+    {
+        foreach ($env->values as $var) {
+            $this->vars["{{{$var->key}}}"] = $var->value;
+        }
+    }
+
+    /**
+     * Tells if there are some vars or not
+     *
+     * @return bool
+     */
+    public function hasVars(): bool
+    {
+        return !empty($this->vars);
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function offsetExists(mixed $offset): bool
+    {
+        return array_key_exists($offset, $this->vars);
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function offsetGet(mixed $offset): mixed
+    {
+        return $this->vars[$offset];
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function offsetSet(mixed $offset, mixed $value): void
+    {
+        $this->vars[$offset] = $value;
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function offsetUnset(mixed $offset): void
+    {
+        unset($this->vars[$offset]);
+    }
+}

src/Exporters/Abstract/AbstractConverter.php

@@ -5,14 +5,16 @@ declare(strict_types=1);
 namespace PmConverter\Exporters\Abstract;
 
 use Exception;
+use PmConverter\Environment;
 use PmConverter\Exporters\{
+    ConverterContract,
     RequestContract};
 use PmConverter\FileSystem;
 
 /**
  *
  */
-abstract class AbstractConverter
+abstract class AbstractConverter implements ConverterContract
 {
     /**
      * @var object|null
@@ -25,6 +27,30 @@ abstract class AbstractConverter
     protected string $outputPath;
 
     /**
+     * @var string[]
+     */
+    protected array $vars = [];
+
+    /**
+     * @var Environment
+     */
+    protected Environment $env;
+
+    /**
+     * Sets an environment with vars
+     *
+     * @param Environment $env
+     * @return $this
+     */
+    public function withEnv(Environment $env): static
+    {
+        $this->env = $env;
+        return $this;
+    }
+
+    /**
+     * Converts collection requests
+     *
      * @throws Exception
      */
     public function convert(object $collection, string $outputPath): void
@@ -32,12 +58,30 @@ abstract class AbstractConverter
         $outputPath = sprintf('%s%s%s', $outputPath, DIRECTORY_SEPARATOR, static::OUTPUT_DIR);
         $this->outputPath = FileSystem::makeDir($outputPath);
         $this->collection = $collection;
+        $this->setVariables();
         foreach ($collection->item as $item) {
             $this->convertItem($item);
         }
     }
 
     /**
+     * Prepares collection variables
+     *
+     * @return $this
+     */
+    protected function setVariables(): static
+    {
+        if ($this->collection->variable) {
+            foreach ($this->collection->variable as $var) {
+                $this->vars["{{{$var->key}}}"] = $var->value;
+            }
+        }
+        return $this;
+    }
+
+    /**
+     * Returns output path
+     *
      * @return string
      */
     public function getOutputPath(): string
@@ -46,6 +90,8 @@ abstract class AbstractConverter
     }
 
     /**
+     * Checks whether item contains another items or not
+     *
      * @param object $item
      * @return bool
      */
@@ -55,6 +101,8 @@ abstract class AbstractConverter
     }
 
     /**
+     * Converts an item to request object and writes it into file
+     *
      * @throws Exception
      */
     protected function convertItem(mixed $item): void
@@ -77,18 +125,23 @@ abstract class AbstractConverter
     }
 
     /**
+     * Initialiazes request object to be written in file
+     *
      * @param object $item
      * @return RequestContract
      */
     protected function initRequest(object $item): RequestContract
     {
-        $request_class = static::REQUEST;
+        $request_class = static::REQUEST_CLASS;
-        $result = new $request_class();
+
+        /** @var RequestContract $result */
+        $result = new $request_class($this->vars);
         $result->setName($item->name);
         $result->setDescription($item->request?->description ?? null);
         $result->setVerb($item->request->method);
         $result->setUrl($item->request->url->raw);
         $result->setHeaders($item->request->header);
+        $result->setAuth($item->request?->auth ?? $this->collection?->auth ?? null);
         if ($item->request->method !== 'GET' && !empty($item->request->body)) {
             $result->setBody($item->request->body);
         }
@@ -96,6 +149,8 @@ abstract class AbstractConverter
     }
 
     /**
+     * Writes converted request object to file
+     *
      * @param RequestContract $request
      * @param string|null $subpath
      * @return bool
@@ -106,6 +161,33 @@ abstract class AbstractConverter
         $filedir = sprintf('%s%s%s', $this->outputPath, DIRECTORY_SEPARATOR, $subpath);
         $filedir = FileSystem::makeDir($filedir);
         $filepath = sprintf('%s%s%s.%s', $filedir, DIRECTORY_SEPARATOR, $request->getName(), static::FILE_EXT);
-        return file_put_contents($filepath, (string)$request) > 0;
+        $content = $this->interpolate((string)$request);
+        return file_put_contents($filepath, $content) > 0;
+    }
+
+    /**
+     * Replaces variables in request with values from collection or environment
+     *
+     * @param string $content
+     * @return string
+     */
+    protected function interpolate(string $content): string
+    {
+        if (empty($this->vars) && $this->env->hasVars()) {
+            return $content;
+        }
+        $matches = [];
+        if (preg_match_all('/\{\{[a-zA-Z][a-zA-Z0-9]+}}/', $content, $matches, PREG_PATTERN_ORDER) > 0) {
+            foreach ($matches[0] as $key => $var) {
+                if (str_contains($content, $var)) {
+                    $content = str_replace($var, $this->vars[$var] ?? $this->env[$var] ?? $var, $content);
+                    unset($matches[0][$key]);
+                }
+            }
+        }
+        // if (!empty($matches[0])) {
+        //     fwrite(STDERR, sprintf('  No values found: %s%s', implode(', ', $matches[0]), PHP_EOL));
+        // }
+        return $content;
     }
 }

src/Exporters/Abstract/AbstractRequest.php

@@ -8,14 +8,14 @@ use PmConverter\Exporters\Http\HttpRequest;
 use PmConverter\Exporters\RequestContract;
 
 /**
- *
+ * Class to determine file content with any request format
  */
 abstract class AbstractRequest implements RequestContract
 {
     /**
      * @var string
      */
-    protected string $http = 'HTTP/1.1'; //TODO verb
+    protected string $http = 'HTTP/1.1'; //TODO proto
 
     /**
      * @var string
@@ -53,6 +53,8 @@ abstract class AbstractRequest implements RequestContract
     protected string $url;
 
     /**
+     * Sets name from collection item to request object
+     *
      * @param string $name
      * @return HttpRequest
      */
@@ -63,6 +65,8 @@ abstract class AbstractRequest implements RequestContract
     }
 
     /**
+     * Returns name of request
+     *
      * @return string
      */
     public function getName(): string
@@ -71,6 +75,8 @@ abstract class AbstractRequest implements RequestContract
     }
 
     /**
+     * Sets description from collection item to request object
+     *
      * @param string|null $description
      * @return HttpRequest
      */
@@ -81,6 +87,8 @@ abstract class AbstractRequest implements RequestContract
     }
 
     /**
+     * Sets HTTP verb from collection item to request object
+     *
      * @param string $verb
      * @return HttpRequest
      */
@@ -91,6 +99,8 @@ abstract class AbstractRequest implements RequestContract
     }
 
     /**
+     * Sets URL from collection item to request object
+     *
      * @param string $url
      * @return HttpRequest
      */
@@ -101,6 +111,8 @@ abstract class AbstractRequest implements RequestContract
     }
 
     /**
+     * Sets headers from collection item to request object
+     *
      * @param object[]|null $headers
      * @return $this
      */
@@ -116,6 +128,32 @@ abstract class AbstractRequest implements RequestContract
     }
 
     /**
+     * Sets authorization headers
+     *
+     * @param object|null $auth
+     * @return $this
+     */
+    public function setAuth(?object $auth): static
+    {
+        if (!empty($auth)) {
+            switch ($auth->type) {
+                case 'bearer':
+                    $this->headers['Authorization'] = [
+                        'value' => 'Bearer ' . $auth->{$auth->type}[0]->value,
+                        'disabled' => false,
+                    ];
+                    break;
+                default:
+                    break;
+            }
+        }
+        return $this;
+    }
+
+
+    /**
+     * Sets body mode from collection item to request object
+     *
      * @param string $bodymode
      * @return HttpRequest
      */
@@ -126,8 +164,10 @@ abstract class AbstractRequest implements RequestContract
     }
 
     /**
-     * @param string $body
+     * Sets body from collection item to request object
-     * @return HttpRequest
+     *
+     * @param object $body
+     * @return $this
      */
     public function setBody(object $body): static
     {
@@ -153,11 +193,29 @@ abstract class AbstractRequest implements RequestContract
     }
 
     /**
-     * @return string
+     * Returns array of description lines
+     *
+     * @return array
      */
-    abstract protected function prepareBody(): ?string;
+    abstract protected function prepareDescription(): array;
 
     /**
+     * Returns array of headers
+     *
+     * @return array
+     */
+    abstract protected function prepareHeaders(): array;
+
+    /**
+     * Returns array of request body lines
+     *
+     * @return array
+     */
+    abstract protected function prepareBody(): array;
+
+    /**
+     * Converts request object to string to be written in result file
+     *
      * @return string
      */
     abstract public function __toString(): string;

src/Exporters/Curl/CurlConverter.php

@@ -11,7 +11,8 @@ use PmConverter\Exporters\{
 class CurlConverter extends AbstractConverter implements ConverterContract
 {
     protected const FILE_EXT = 'sh';
+
     protected const OUTPUT_DIR = 'curl';
 
-    protected const REQUEST = CurlRequest::class;
+    protected const REQUEST_CLASS = CurlRequest::class;
 }

src/Exporters/Curl/CurlRequest.php

@@ -7,59 +7,77 @@ namespace PmConverter\Exporters\Curl;
 use PmConverter\Exporters\Abstract\AbstractRequest;
 
 /**
- *
+ * Class to determine file content with curl request format
  */
 class CurlRequest extends AbstractRequest
 {
     /**
-     * @return string
+     * @inheritDoc
      */
-    protected function prepareBody(): ?string
+    protected function prepareDescription(): array
     {
-        switch ($this->bodymode) {
+        return empty($this->description)
-            case 'formdata':
+            ? []
-                $body = [];
+            : ['# ' . str_replace("\n", "\n# ", $this->description), ''];
-                foreach ($this->body as $data) {
-                    $body[] = sprintf(
-                        "%s\t--form '%s=%s' \ ",
-                        isset($data->disabled) ? '# ' : '',
-                        $data->key,
-                        $data->type === 'file' ? "@$data->src" : $data->value
-                    );
-                }
-                return implode(PHP_EOL, $body);
-            default:
-                return $this->body;
-        }
     }
 
     /**
-     * @return string
+     * @inheritDoc
      */
-    public function __toString(): string
+    protected function prepareHeaders(): array
     {
-        $output[] = '#!/bin/sh';
+        $output = [];
-        if ($this->description) {
-            $output[] = '# ' . str_replace("\n", "\n# ", $this->description);
-            $output[] = '';
-        }
-        $output[] = "curl \ ";
-        $output[] = "\t--http1.1 \ "; //TODO verb
-        $output[] = "\t--request $this->verb \ ";
-        $output[] = "\t--location $this->url \ ";
         foreach ($this->headers as $header_key => $header) {
             if ($header['disabled']) {
                 continue;
             }
             $output[] = sprintf("\t--header '%s=%s' \ ", $header_key, $header['value']);
         }
-        if (!is_null($body = $this->prepareBody())) {
+        return $output;
-            $output[] = match ($this->bodymode) {
-                'formdata' => $body,
-                default => "\t--data '$body'",
-            };
     }
+
+    /**
+     * @inheritDoc
+     */
+    protected function prepareBody(): array
+    {
+        $output = [];
+        switch ($this->bodymode) {
+            case 'formdata':
+                foreach ($this->body as $data) {
+                    $output[] = sprintf(
+                        "%s\t--form '%s=%s' \ ",
+                        isset($data->disabled) ? '# ' : '',
+                        $data->key,
+                        $data->type === 'file' ? "@$data->src" : $data->value
+                    );
+                }
+                break;
+            default:
+                $output = ["\t--data '$this->body'"];
+                break;
+        }
+        return $output;
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function __toString(): string
+    {
+        $output = array_merge(
+            ['#!/bin/sh'],
+            $this->prepareDescription(),
+            [
+                "curl \ ",
+                "\t--http1.1 \ ", //TODO proto
+                "\t--request $this->verb \ ",
+                "\t--location $this->url \ ",
+            ],
+            $this->prepareHeaders(),
+            $this->prepareBody()
+        );
         $output[] = rtrim(array_pop($output), '\ ');
-        return implode(PHP_EOL, $output);
+        return implode(PHP_EOL, array_merge($output, ['']));
     }
 }

src/Exporters/Http/HttpConverter.php

@@ -11,7 +11,8 @@ use PmConverter\Exporters\{
 class HttpConverter extends AbstractConverter implements ConverterContract
 {
     protected const FILE_EXT = 'http';
+
     protected const OUTPUT_DIR = 'http';
 
-    protected const REQUEST = HttpRequest::class;
+    protected const REQUEST_CLASS = HttpRequest::class;
 }

src/Exporters/Http/HttpRequest.php

@@ -7,47 +7,64 @@ namespace PmConverter\Exporters\Http;
 use PmConverter\Exporters\Abstract\AbstractRequest;
 
 /**
- *
+ * Class to determine file content with http request format
  */
 class HttpRequest extends AbstractRequest
 {
     /**
-     * @return string
+     * @inheritDoc
      */
-    protected function prepareBody(): ?string
+    protected function prepareDescription(): array
     {
-        switch ($this->bodymode) {
+        return empty($this->description)
-            case 'formdata':
+            ? []
-                $body = [];
+            : ['# ' . str_replace("\n", "\n# ", $this->description), ''];
-                foreach ($this->body as $data) {
-                    $body[] = sprintf(
-                        '%s%s=%s',
-                        empty($data->disabled) ? '' : '# ',
-                        $data->key,
-                        $data->type === 'file' ? "$data->src" : $data->value
-                    );
-                }
-                return implode(PHP_EOL, $body);
-            default:
-                return $this->body;
-        }
     }
 
     /**
-     * @return string
+     * @inheritDoc
      */
-    public function __toString(): string
+    protected function prepareHeaders(): array
     {
-        if ($this->description) {
-            $output[] = '# ' . str_replace("\n", "\n# ", $this->description);
-            $output[] = '';
-        }
         $output[] = "$this->verb $this->url $this->http";
         foreach ($this->headers as $header_key => $header) {
             $output[] = sprintf('%s%s: %s', $header['disabled'] ? '# ' : '', $header_key, $header['value']);
         }
-        $output[] = '';
+        return $output;
-        $output[] = (string)$this->prepareBody();
+    }
+
+    /**
+     * @inheritDoc
+     */
+    protected function prepareBody(): array
+    {
+        switch ($this->bodymode) {
+            case 'formdata':
+                $output = [''];
+                foreach ($this->body as $data) {
+                    $output[] = sprintf(
+                        '%s%s=%s',
+                        empty($data->disabled) ? '' : '# ',
+                        $data->key,
+                        $data->type === 'file' ? $data->src : $data->value
+                    );
+                }
+                return $output;
+            default:
+                return ['', $this->body];
+        }
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function __toString(): string
+    {
+        $output = array_merge(
+            $this->prepareDescription(),
+            $this->prepareHeaders(),
+            $this->prepareBody()
+        );
         return implode(PHP_EOL, $output);
     }
 }

src/Exporters/RequestContract.php

@@ -11,6 +11,7 @@ interface RequestContract
     public function setDescription(?string $description): static;
     public function setVerb(string $verb): static;
     public function setUrl(string $url): static;
+    public function setAuth(object $auth): static;
     public function setHeaders(?array $headers): static;
     public function setBodymode(string $bodymode): static;
     public function setBody(object $body): static;

src/Exporters/Wget/WgetConverter.php

@@ -11,7 +11,8 @@ use PmConverter\Exporters\{
 class WgetConverter extends AbstractConverter implements ConverterContract
 {
     protected const FILE_EXT = 'sh';
+
     protected const OUTPUT_DIR = 'wget';
 
-    protected const REQUEST = WgetRequest::class;
+    protected const REQUEST_CLASS = WgetRequest::class;
 }

src/Exporters/Wget/WgetRequest.php

@@ -7,57 +7,76 @@ namespace PmConverter\Exporters\Wget;
 use PmConverter\Exporters\Abstract\AbstractRequest;
 
 /**
- *
+ * Class to determine file content with wget request format
  */
 class WgetRequest extends AbstractRequest
 {
     /**
-     * @return string
+     * @inheritDoc
      */
-    protected function prepareBody(): ?string
+    protected function prepareDescription(): array
     {
-        switch ($this->bodymode) {
+        return empty($this->description)
-            case 'formdata':
+            ? []
-                $lines = [];
+            : ['# ' . str_replace("\n", "\n# ", $this->description), ''];
-                foreach ($this->body as &$data) {
-                    if ($data->type === 'file') {
-                        continue;
-                    }
-                    $lines[$data->key] = $data->value;
-                }
-                $body[] = http_build_query($lines);
-                return implode(PHP_EOL, $body);
-            default:
-                return $this->body;
-        }
     }
 
     /**
-     * @return string
+     * @inheritDoc
      */
-    public function __toString(): string
+    protected function prepareHeaders(): array
     {
-        $output[] = '#!/bin/sh';
+        $output = [];
-        if ($this->description) {
-            $output[] = '# ' . str_replace("\n", "\n# ", $this->description);
-            $output[] = '';
-        }
-        $output[] = 'wget \ ';
-        $output[] = "\t--no-check-certificate \ ";
-        $output[] = "\t--quiet \ ";
-        $output[] = "\t--timeout=0 \ ";
-        $output[] = "\t--method $this->verb \ ";
         foreach ($this->headers as $header_key => $header) {
             if ($header['disabled']) {
                 continue;
             }
             $output[] = sprintf("\t--header '%s=%s' \ ", $header_key, $header['value']);
         }
-        if (!is_null($body = $this->prepareBody())) {
+        return $output;
-            $output[] = "\t--body-data '$body' \ ";
     }
+
+    /**
+     * @inheritDoc
+     */
+    protected function prepareBody(): array
+    {
+        switch ($this->bodymode) {
+            case 'formdata':
+                $params = [];
+                foreach ($this->body as $data) {
+                    if ($data->type === 'file') {
+                        continue;
+                    }
+                    $params[$data->key] = $data->value;
+                }
+                $output[] = http_build_query($params);
+                return $output;
+            default:
+                return ["\t$this->body"];
+        }
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function __toString(): string
+    {
+        $output = array_merge(
+            ['#!/bin/sh'],
+            $this->prepareDescription(),
+            [
+                'wget \ ',
+                "\t--no-check-certificate \ ",
+                "\t--quiet \ ",
+                "\t--timeout=0 \ ",
+                "\t--method $this->verb \ ",
+            ],
+            $this->prepareHeaders(),
+            $this->prepareBody()
+        );
         $output[] = rtrim(array_pop($output), '\ ');
         $output[] = "\t'$this->url'";
-        return implode(PHP_EOL, $output);
+        return implode(PHP_EOL, array_merge($output, ['']));
     }
 }

src/Processor.php

@@ -22,7 +22,7 @@ class Processor
     /**
      * Converter version
      */
-    public const VERSION = '1.1.1';
+    public const VERSION = '1.2.0';
 
     /**
      * @var string[] Paths to collection files
@@ -57,12 +57,22 @@ class Processor
     /**
      * @var int Initial timestamp
      */
-    protected int $init_time;
+    protected int $initTime;
 
     /**
      * @var int Initial RAM usage
      */
-    protected int $init_ram;
+    protected int $initRam;
+
+    /**
+     * @var string
+     */
+    protected string $envFile;
+
+    /**
+     * @var Environment
+     */
+    protected Environment $env;
 
     /**
      * Constructor
@@ -71,8 +81,8 @@ class Processor
      */
     public function __construct(protected array $argv)
     {
-        $this->init_time = hrtime(true);
+        $this->initTime = hrtime(true);
-        $this->init_ram = memory_get_usage(true);
+        $this->initRam = memory_get_usage(true);
     }
 
     /**
@@ -115,14 +125,19 @@ class Processor
                     if (empty($this->argv[$idx + 1])) {
                         throw new InvalidArgumentException('a directory path is expected for -d (--dir)');
                     }
-                    $normpath = $this->argv[$idx + 1];
+                    $rawpath = $this->argv[$idx + 1];
                     $files = array_filter(
-                        FileSystem::dirContents($normpath),
+                        FileSystem::dirContents($rawpath),
                         static fn($filename) => FileSystem::isCollectionFile($filename)
                     );
                     $this->collectionPaths = array_unique(array_merge($this?->collectionPaths ?? [], $files));
                     break;
 
+                case '-e':
+                case '--env':
+                    $this->envFile = FileSystem::normalizePath($this->argv[$idx + 1]);
+                    break;
+
                 case '-p':
                 case '--preserve':
                     $this->preserveOutput = true;
@@ -158,6 +173,8 @@ class Processor
     }
 
     /**
+     * Initializes output directory
+     *
      * @return void
      * @throws CannotCreateDirectoryException
      * @throws DirectoryIsNotWriteableException
@@ -185,6 +202,8 @@ class Processor
     }
 
     /**
+     * Initializes collection objects
+     *
      * @throws JsonException
      */
     protected function initCollections(): void
@@ -199,6 +218,22 @@ class Processor
         }
     }
 
+    /**
+     * Initializes environment object
+     *
+     * @return void
+     * @throws JsonException
+     */
+    protected function initEnv(): void
+    {
+        $content = file_get_contents(FileSystem::normalizePath($this->envFile));
+        $content = json_decode($content, flags: JSON_THROW_ON_ERROR);
+        if (!property_exists($content, 'environment') || empty($content?->environment)) {
+            throw new JsonException("not a valid environment: $this->envFile");
+        }
+        $this->env = new Environment($content->environment);
+    }
+
     /**
      * Begins a conversion
      *
@@ -210,6 +245,7 @@ class Processor
         $this->initOutputDirectory();
         $this->initConverters();
         $this->initCollections();
+        $this->initEnv();
         $count = count($this->collections);
         $current = 0;
         $success = 0;
@@ -218,10 +254,13 @@ class Processor
             ++$current;
             printf("Converting '%s' (%d/%d):%s", $collectionName, $current, $count, PHP_EOL);
             foreach ($this->converters as $type => $exporter) {
-                printf(' > %s', strtolower($type));
+                printf('> %s%s', strtolower($type), PHP_EOL);
                 $outputPath = sprintf('%s%s%s', $this->outputPath, DIRECTORY_SEPARATOR, $collectionName);
+                if (!empty($this->env)) {
+                    $exporter->withEnv($this->env);
+                }
                 $exporter->convert($collection, $outputPath);
-                printf(' - OK: %s%s', $exporter->getOutputPath(), PHP_EOL);
+                printf('  OK: %s%s', $exporter->getOutputPath(), PHP_EOL);
             }
             print(PHP_EOL);
             ++$success;
@@ -238,8 +277,8 @@ class Processor
      */
     protected function printStats(int $success, int $count): void
     {
-        $time = (hrtime(true) - $this->init_time) / 1_000_000;
+        $time = (hrtime(true) - $this->initTime) / 1_000_000;
-        $ram = (memory_get_peak_usage(true) - $this->init_ram) / 1024 / 1024;
+        $ram = (memory_get_peak_usage(true) - $this->initRam) / 1024 / 1024;
         printf('Converted %d of %d in %.3f ms using %.3f MiB RAM', $success, $count, $time, $ram);
     }
 
@@ -278,16 +317,19 @@ class Processor
             "\t-f, --file       - a PATH to single collection located in PATH to convert from",
             "\t-d, --dir        - a directory with collections located in COLLECTION_FILEPATH to convert from",
             "\t-o, --output     - a directory OUTPUT_PATH to put results in",
+            "\t-e, --env        - use environment file with variable values to replace in request",
             "\t-p, --preserve   - do not delete OUTPUT_PATH (if exists)",
             "\t-h, --help       - show this help message and exit",
             "\t-v, --version    - show version info and exit",
             '',
             'If no ARGUMENTS passed then --help implied.',
-            'If both -c and -d are specified then only unique set of files will be converted.',
+            'If both -f and -d are specified then only unique set of files will be converted.',
             '-f or -d are required to be specified at least once, but each may be specified multiple times.',
             'PATH must be a valid path to readable json-file or directory.',
             'OUTPUT_PATH must be a valid path to writeable directory.',
             'If -o is specified several times then only last one will be used.',
+            'If -e is specified several times then only last one will be used.',
+            'If -e is not specified then only collection vars will be replaced (if any).',
             '',
             'Possible FORMATS:',
             "\t--http   - generate raw *.http files (default)",
@@ -301,6 +343,7 @@ class Processor
             "        -f ~/dir1/first.postman_collection.json \ ",
             "        --directory ~/team \ ",
             "        --file ~/dir2/second.postman_collection.json \ ",
+            "        --env ~/localhost.postman_environment.json \ ",
             "        -d ~/personal \ ",
             "        -o ~/postman_export ",
             "",