From a4178af2334f5f06a43ee453c4d1910f9ea2e9d4 Mon Sep 17 00:00:00 2001
From: Rhys Arkins <rhys@arkins.net>
Date: Sun, 15 Jan 2023 09:10:41 +0100
Subject: [PATCH] feat(composer): filter releases using php constraint

Closes #18715
---
 lib/modules/datasource/index.ts           | 55 +++++++++++++++++++++++
 lib/modules/datasource/packagist/index.ts | 22 ++++++++-
 lib/modules/manager/composer/extract.ts   |  5 +++
 3 files changed, 80 insertions(+), 2 deletions(-)

diff --git a/lib/modules/datasource/index.ts b/lib/modules/datasource/index.ts
index dd0d5f198228cc..847671191289e8 100644
--- a/lib/modules/datasource/index.ts
+++ b/lib/modules/datasource/index.ts
@@ -10,6 +10,7 @@ import { regEx } from '../../util/regex';
 import { trimTrailingSlash } from '../../util/url';
 import * as allVersioning from '../versioning';
 import datasources from './api';
+import { GithubTagsDatasource } from './github-tags';
 import { addMetaData } from './metadata';
 import { setNpmrc } from './npm';
 import { resolveRegistryUrl } from './npm/npmrc';
@@ -415,6 +416,60 @@ export async function getPkgReleases(
             version.matches(constraintValue, releaseConstraint)
         );
       });
+    } else {
+      if (constraintName === 'php') {
+        const composerVersioning = allVersioning.get('composer');
+        if (composerVersioning.isValid(constraintValue)) {
+          const lookupConfig: GetPkgReleasesConfig = {
+            datasource: GithubTagsDatasource.id,
+            depName: 'php/php-src',
+            extractVersion: '^php-(?<version>\\S+)',
+          };
+          const phpVersions = (
+            await getPkgReleases(lookupConfig)
+          )?.releases.map((release) => release.version);
+          if (!phpVersions) {
+            logger.warn('Could not fetch php releases for compatibility check');
+            return null;
+          }
+          const matchingVersions = phpVersions.filter((version) =>
+            composerVersioning.matches(version, constraintValue)
+          );
+          logger.debug(
+            `Found ${matchingVersions.length} matching php versions`
+          );
+          if (matchingVersions.length) {
+            const originalReleaseCount = res.releases.length;
+            res.releases = res.releases.filter((release) => {
+              const constraint = release.constraints?.[constraintName];
+              if (!is.nonEmptyArray(constraint)) {
+                // A release with no constraints is OK
+                return true;
+              }
+              return constraint.some(
+                // If any of the release's constraints match, then it's OK
+                (releaseConstraint) => {
+                  const releaseMatchingVersions = phpVersions.filter(
+                    (version) =>
+                      composerVersioning.matches(version, releaseConstraint)
+                  );
+
+                  const isMatch = matchingVersions.every((version) =>
+                    releaseMatchingVersions.includes(version)
+                  );
+                  return isMatch;
+                }
+              );
+            });
+            const filteredReleaseCount = res.releases.length;
+            logger.debug(
+              `${filteredReleaseCount} of ${originalReleaseCount} releases have matching constraints`
+            );
+          }
+        } else {
+          logger.warn({ constraintValue }, 'Invalid php constraint');
+        }
+      }
     }
   }
   // Strip constraints from releases result
diff --git a/lib/modules/datasource/packagist/index.ts b/lib/modules/datasource/packagist/index.ts
index 877592193d9c4f..4df855b328bddf 100644
--- a/lib/modules/datasource/packagist/index.ts
+++ b/lib/modules/datasource/packagist/index.ts
@@ -102,6 +102,16 @@ export class PackagistDatasource extends Datasource {
     return url;
   }
 
+  private static minifyExpand(releases: any[]): any[] {
+    let expandedRelease: any;
+    return releases.map((release) => {
+      if (release.require) {
+        expandedRelease = release;
+      }
+      return { ...expandedRelease, ...release };
+    });
+  }
+
   @cache({
     namespace: `datasource-${PackagistDatasource.id}-public-files`,
     key: (regUrl: string, regFile: RegistryFile) =>
@@ -137,10 +147,16 @@ export class PackagistDatasource extends Datasource {
       if (release.source?.url) {
         dep.sourceUrl = release.source.url;
       }
+      const constraints: Record<string, string[]> = {};
+      if (release.require?.php) {
+        constraints.php = [release.require.php];
+      }
+
       return {
         version: parsedVersion.replace(regEx(/^v/), ''),
         gitRef: parsedVersion,
         releaseTimestamp: release.time,
+        constraints,
       };
     });
     return dep;
@@ -218,8 +234,10 @@ export class PackagistDatasource extends Datasource {
     // TODO: fix types (#9610)
     let res = (await this.http.getJson<any>(pkgUrl[0])).body.packages[name];
     res = [
-      ...res,
-      ...(await this.http.getJson<any>(pkgUrl[1])).body.packages[name],
+      ...PackagistDatasource.minifyExpand(res),
+      ...PackagistDatasource.minifyExpand(
+        (await this.http.getJson<any>(pkgUrl[1])).body.packages[name]
+      ),
     ];
     if (res) {
       dep = PackagistDatasource.extractDepReleases(res);
diff --git a/lib/modules/manager/composer/extract.ts b/lib/modules/manager/composer/extract.ts
index 58978d7af275f1..31f11a0ae1f069 100644
--- a/lib/modules/manager/composer/extract.ts
+++ b/lib/modules/manager/composer/extract.ts
@@ -197,5 +197,10 @@ export async function extractPackageFile(
     };
     res.managerData = managerData;
   }
+
+  if (is.nonEmptyString(composerJson.require?.php)) {
+    res.extractedConstraints = { php: composerJson.require.php };
+  }
+
   return res;
 }