Add env var option to disable fund message

doc/03-cli.md

@@ -1145,6 +1145,10 @@ If set to 1, this env suppresses a warning when Composer is running with the Xde
 
 This env var controls the [`discard-changes`](06-config.md#discard-changes) config option.
 
+### COMPOSER_FUND
+
+If set to 0, this env suppresses funding notices when installing.
+
 ### COMPOSER_HOME
 
 The `COMPOSER_HOME` var allows you to change the Composer home directory. This

src/Composer/Installer.php

@@ -372,22 +372,30 @@ public function run(): int
             }
         }
 
-        $fundingCount = 0;
-        foreach ($localRepo->getPackages() as $package) {
-            if ($package instanceof CompletePackageInterface && !$package instanceof AliasPackage && $package->getFunding()) {
-                $fundingCount++;
-            }
+        $fundEnv = Platform::getEnv('COMPOSER_FUND');
+        $showFunding = true;
+        if (is_numeric($fundEnv)) {
+            $showFunding = intval($fundEnv) !== 0;
         }
-        if ($fundingCount > 0) {
-            $this->io->writeError([
-                sprintf(
-                    "<info>%d package%s you are using %s looking for funding.</info>",
-                    $fundingCount,
-                    1 === $fundingCount ? '' : 's',
-                    1 === $fundingCount ? 'is' : 'are'
-                ),
-                '<info>Use the `composer fund` command to find out more!</info>',
-            ]);
+
+        if ($showFunding) {
+            $fundingCount = 0;
+            foreach ($localRepo->getPackages() as $package) {
+                if ($package instanceof CompletePackageInterface && !$package instanceof AliasPackage && $package->getFunding()) {
+                    $fundingCount++;
+                }
+            }
+            if ($fundingCount > 0) {
+                $this->io->writeError([
+                    sprintf(
+                        "<info>%d package%s you are using %s looking for funding.</info>",
+                        $fundingCount,
+                        1 === $fundingCount ? '' : 's',
+                        1 === $fundingCount ? 'is' : 'are'
+                    ),
+                    '<info>Use the `composer fund` command to find out more!</info>',
+                ]);
+            }
         }
 
         if ($this->runScripts) {

tests/Composer/Test/Fixtures/installer/install-funding-notice-env.test

@@ -0,0 +1,62 @@
+--TEST--
+Installs a simple package with exact match requirement
+--CONDITION--
+putenv('COMPOSER_FUND=1')
+--COMPOSER--
+{
+    "repositories": [
+        {
+            "type": "package",
+            "package": [
+                {
+                    "name": "a/a",
+                    "version": "1.0.0",
+                    "funding": [{ "type": "example", "url": "http://example.org/fund" }],
+                    "require": {
+                        "d/d": "^1.0"
+                    }
+                },
+                {
+                    "name": "b/b",
+                    "version": "1.0.0",
+                    "funding": [{ "type": "example", "url": "http://example.org/fund" }]
+                },
+                {
+                    "name": "c/c",
+                    "version": "1.0.0",
+                    "funding": [{ "type": "example", "url": "http://example.org/fund" }]
+                },
+                {
+                    "name": "d/d",
+                    "version": "1.0.0",
+                    "require": {
+                        "b/b": "^1.0"
+                    }
+                }
+            ]
+        }
+    ],
+    "require": {
+        "a/a": "1.0.0"
+    }
+}
+--RUN--
+install
+--EXPECT-OUTPUT--
+<warning>No composer.lock file present. Updating dependencies to latest instead of installing from lock file. See https://getcomposer.org/install for more information.</warning>
+Loading composer repositories with package information
+Updating dependencies
+Lock file operations: 3 installs, 0 updates, 0 removals
+  - Locking a/a (1.0.0)
+  - Locking b/b (1.0.0)
+  - Locking d/d (1.0.0)
+Writing lock file
+Installing dependencies from lock file (including require-dev)
+Package operations: 3 installs, 0 updates, 0 removals
+Generating autoload files
+2 packages you are using are looking for funding.
+Use the `composer fund` command to find out more!
+--EXPECT--
+Installing b/b (1.0.0)
+Installing d/d (1.0.0)
+Installing a/a (1.0.0)

tests/Composer/Test/Fixtures/installer/install-funding-notice-not-displayed-env.test

@@ -0,0 +1,60 @@
+--TEST--
+Installs a simple package with exact match requirement
+--CONDITION--
+putenv('COMPOSER_FUND=0')
+--COMPOSER--
+{
+    "repositories": [
+        {
+            "type": "package",
+            "package": [
+                {
+                    "name": "a/a",
+                    "version": "1.0.0",
+                    "funding": [{ "type": "example", "url": "http://example.org/fund" }],
+                    "require": {
+                        "d/d": "^1.0"
+                    }
+                },
+                {
+                    "name": "b/b",
+                    "version": "1.0.0",
+                    "funding": [{ "type": "example", "url": "http://example.org/fund" }]
+                },
+                {
+                    "name": "c/c",
+                    "version": "1.0.0",
+                    "funding": [{ "type": "example", "url": "http://example.org/fund" }]
+                },
+                {
+                    "name": "d/d",
+                    "version": "1.0.0",
+                    "require": {
+                        "b/b": "^1.0"
+                    }
+                }
+            ]
+        }
+    ],
+    "require": {
+        "a/a": "1.0.0"
+    }
+}
+--RUN--
+install
+--EXPECT-OUTPUT--
+<warning>No composer.lock file present. Updating dependencies to latest instead of installing from lock file. See https://getcomposer.org/install for more information.</warning>
+Loading composer repositories with package information
+Updating dependencies
+Lock file operations: 3 installs, 0 updates, 0 removals
+  - Locking a/a (1.0.0)
+  - Locking b/b (1.0.0)
+  - Locking d/d (1.0.0)
+Writing lock file
+Installing dependencies from lock file (including require-dev)
+Package operations: 3 installs, 0 updates, 0 removals
+Generating autoload files
+--EXPECT--
+Installing b/b (1.0.0)
+Installing d/d (1.0.0)
+Installing a/a (1.0.0)

tests/Composer/Test/InstallerTest.php

@@ -59,6 +59,7 @@ protected function tearDown(): void
     {
         parent::tearDown();
         Platform::clearEnv('COMPOSER_POOL_OPTIMIZER');
+        Platform::clearEnv('COMPOSER_FUND');
 
         chdir($this->prevCwd);
         if (isset($this->tempComposerHome) && is_dir($this->tempComposerHome)) {