composer: add and document optional PHP extensions

Signed-off-by: VirtualTam <virtualtam@flibidi.net>

2 files changed, 40 insertions, 33 deletions

diff --git a/composer.json b/composer.json
index 8a98cfb6..a52b5f78 100644
--- a/composer.json
+++ b/composer.json
@@ -16,6 +16,7 @@
     },
     "require": {
         "php": ">=5.6",
+        "ext-json": "*",
         "ext-zlib": "*",
         "shaarli/netscape-bookmark-parser": "^2.1",
         "erusev/parsedown": "^1.6",
@@ -30,7 +31,11 @@
         "squizlabs/php_codesniffer": "2.*"
     },
     "suggest": {
-        "ext-curl": "*"
+        "ext-curl": "Allows fetching web pages and thumbnails in a more robust way",
+        "ext-gd": "Required for thumbnail generation",
+        "ext-gettext": "Enables faster translation system in gettext mode",
+        "ext-intl": "Provides localized text sorting",
+        "ext-mbstring": "Provides multibyte (Unicode) string support"
     },
     "autoload": {
         "psr-4": {
diff --git a/composer.lock b/composer.lock
index 5723cff4..53fb2175 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "45937c29ca4a55504b0d0a60a03c42c6",
+    "content-hash": "f8965821c946c2a1271c3f8c7e8c6eea",
     "packages": [
         {
             "name": "arthurhoaro/web-thumbnailer",
@@ -133,16 +133,16 @@
         },
         {
             "name": "gettext/gettext",
-            "version": "v4.6.1",
+            "version": "v4.6.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/oscarotero/Gettext.git",
-                "reference": "854ff5f5aaf92d2af7080ba8fc15718b27b5c89a"
+                "reference": "93176b272d61fb58a9767be71c50d19149cb1e48"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/oscarotero/Gettext/zipball/854ff5f5aaf92d2af7080ba8fc15718b27b5c89a",
-                "reference": "854ff5f5aaf92d2af7080ba8fc15718b27b5c89a",
+                "url": "https://api.github.com/repos/oscarotero/Gettext/zipball/93176b272d61fb58a9767be71c50d19149cb1e48",
+                "reference": "93176b272d61fb58a9767be71c50d19149cb1e48",
                 "shasum": ""
             },
             "require": {
@@ -191,7 +191,7 @@
                 "po",
                 "translation"
             ],
-            "time": "2018-08-27T15:40:19+00:00"
+            "time": "2019-01-12T18:40:56+00:00"
         },
         {
             "name": "gettext/languages",
@@ -2101,16 +2101,16 @@
         },
         {
             "name": "symfony/console",
-            "version": "v3.4.19",
+            "version": "v3.4.21",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/console.git",
-                "reference": "8f80fc39bbc3b7c47ee54ba7aa2653521ace94bb"
+                "reference": "a700b874d3692bc8342199adfb6d3b99f62cc61a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/console/zipball/8f80fc39bbc3b7c47ee54ba7aa2653521ace94bb",
-                "reference": "8f80fc39bbc3b7c47ee54ba7aa2653521ace94bb",
+                "url": "https://api.github.com/repos/symfony/console/zipball/a700b874d3692bc8342199adfb6d3b99f62cc61a",
+                "reference": "a700b874d3692bc8342199adfb6d3b99f62cc61a",
                 "shasum": ""
             },
             "require": {
@@ -2166,20 +2166,20 @@
             ],
             "description": "Symfony Console Component",
             "homepage": "https://symfony.com",
-            "time": "2018-11-26T12:48:07+00:00"
+            "time": "2019-01-04T04:42:43+00:00"
         },
         {
             "name": "symfony/debug",
-            "version": "v3.4.19",
+            "version": "v3.4.21",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/debug.git",
-                "reference": "2016b3eec2e49c127dd02d0ef44a35c53181560d"
+                "reference": "26d7f23b9bd0b93bee5583e4d6ca5cb1ab31b186"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/debug/zipball/2016b3eec2e49c127dd02d0ef44a35c53181560d",
-                "reference": "2016b3eec2e49c127dd02d0ef44a35c53181560d",
+                "url": "https://api.github.com/repos/symfony/debug/zipball/26d7f23b9bd0b93bee5583e4d6ca5cb1ab31b186",
+                "reference": "26d7f23b9bd0b93bee5583e4d6ca5cb1ab31b186",
                 "shasum": ""
             },
             "require": {
@@ -2222,20 +2222,20 @@
             ],
             "description": "Symfony Debug Component",
             "homepage": "https://symfony.com",
-            "time": "2018-11-11T19:48:54+00:00"
+            "time": "2019-01-01T13:45:19+00:00"
         },
         {
             "name": "symfony/finder",
-            "version": "v3.4.19",
+            "version": "v3.4.21",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/finder.git",
-                "reference": "6cf2be5cbd0e87aa35c01f80ae0bf40b6798e442"
+                "reference": "3f2a2ab6315dd7682d4c16dcae1e7b95c8b8555e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/finder/zipball/6cf2be5cbd0e87aa35c01f80ae0bf40b6798e442",
-                "reference": "6cf2be5cbd0e87aa35c01f80ae0bf40b6798e442",
+                "url": "https://api.github.com/repos/symfony/finder/zipball/3f2a2ab6315dd7682d4c16dcae1e7b95c8b8555e",
+                "reference": "3f2a2ab6315dd7682d4c16dcae1e7b95c8b8555e",
                 "shasum": ""
             },
             "require": {
@@ -2271,7 +2271,7 @@
             ],
             "description": "Symfony Finder Component",
             "homepage": "https://symfony.com",
-            "time": "2018-11-11T19:48:54+00:00"
+            "time": "2019-01-01T13:45:19+00:00"
         },
         {
             "name": "symfony/polyfill-ctype",
@@ -2392,16 +2392,16 @@
         },
         {
             "name": "symfony/yaml",
-            "version": "v3.4.19",
+            "version": "v3.4.21",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/yaml.git",
-                "reference": "291e13d808bec481eab83f301f7bff3e699ef603"
+                "reference": "554a59a1ccbaac238a89b19c8e551a556fd0e2ea"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/yaml/zipball/291e13d808bec481eab83f301f7bff3e699ef603",
-                "reference": "291e13d808bec481eab83f301f7bff3e699ef603",
+                "url": "https://api.github.com/repos/symfony/yaml/zipball/554a59a1ccbaac238a89b19c8e551a556fd0e2ea",
+                "reference": "554a59a1ccbaac238a89b19c8e551a556fd0e2ea",
                 "shasum": ""
             },
             "require": {
@@ -2447,7 +2447,7 @@
             ],
             "description": "Symfony Yaml Component",
             "homepage": "https://symfony.com",
-            "time": "2018-11-11T19:48:54+00:00"
+            "time": "2019-01-01T13:45:19+00:00"
         },
         {
             "name": "theseer/fdomdocument",
@@ -2491,20 +2491,21 @@
         },
         {
             "name": "webmozart/assert",
-            "version": "1.3.0",
+            "version": "1.4.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/webmozart/assert.git",
-                "reference": "0df1908962e7a3071564e857d86874dad1ef204a"
+                "reference": "83e253c8e0be5b0257b881e1827274667c5c17a9"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/webmozart/assert/zipball/0df1908962e7a3071564e857d86874dad1ef204a",
-                "reference": "0df1908962e7a3071564e857d86874dad1ef204a",
+                "url": "https://api.github.com/repos/webmozart/assert/zipball/83e253c8e0be5b0257b881e1827274667c5c17a9",
+                "reference": "83e253c8e0be5b0257b881e1827274667c5c17a9",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.3.3 || ^7.0"
+                "php": "^5.3.3 || ^7.0",
+                "symfony/polyfill-ctype": "^1.8"
             },
             "require-dev": {
                 "phpunit/phpunit": "^4.6",
@@ -2537,7 +2538,7 @@
                 "check",
                 "validate"
             ],
-            "time": "2018-01-29T19:49:41+00:00"
+            "time": "2018-12-25T11:19:39+00:00"
         }
     ],
     "aliases": [],
@@ -2549,6 +2550,7 @@
     "prefer-lowest": false,
     "platform": {
         "php": ">=5.6",
+        "ext-json": "*",
         "ext-zlib": "*"
     },
     "platform-dev": [],