feat: warn about legacy suffix use

src/convert/convertContext/recompositionFinalizer.ts

@@ -118,6 +118,7 @@ const ensureStateValueWithParent = (
   );
 };
 
+/** throw if the child has no parent component */
 const ensureMetadataComponentWithParent = (
   child: MetadataComponent
 ): child is SourceComponent & { parent: SourceComponent } => {

src/convert/transformers/defaultMetadataTransformer.ts

@@ -5,7 +5,8 @@
  * For full license text, see LICENSE.txt file in the repo root or https://opensource.org/licenses/BSD-3-Clause
  */
 import { basename, dirname, join } from 'node:path';
-import { Messages } from '@salesforce/core';
+import { Messages } from '@salesforce/core/messages';
+import { Lifecycle } from '@salesforce/core/lifecycle';
 import { SourcePath } from '../../common/types';
 import { META_XML_SUFFIX } from '../../common/constants';
 import { SfdxFileFormat, WriteInfo } from '../types';
@@ -118,6 +119,9 @@ const getXmlDestination = (
     }
   }
   if (legacySuffix && suffix && xmlDestination.includes(legacySuffix)) {
+    void Lifecycle.getInstance().emitWarning(
+      `The ${component.type.name} component ${component.fullName} uses the legacy suffix ${legacySuffix}. This suffix is deprecated and will be removed in a future release.`
+    );
     xmlDestination = xmlDestination.replace(legacySuffix, suffix);
   }
   return xmlDestination;

src/resolve/metadataResolver.ts

@@ -393,12 +393,20 @@ const resolveTypeFromStrictFolder =
 /** the type has children and the file suffix (in source format) matches a child type suffix of the type we think it is */
 const childSuffixMatches = (type: MetadataType, fsPath: string): boolean =>
   Object.values(type.children?.types ?? {})
-    .map((childType) => `${childType.suffix}${META_XML_SUFFIX}`)
+    .flatMap(getSuffixes)
+    .map(appendMetaXmlSuffix)
     .some((s) => fsPath.endsWith(s));
 
 /** the file suffix (in source or mdapi format) matches the type suffix we think it is */
 const suffixMatches = (type: MetadataType, fsPath: string): boolean =>
-  typeof type.suffix === 'string' && [type.suffix, `${type.suffix}${META_XML_SUFFIX}`].some((s) => fsPath.endsWith(s));
+  [...getSuffixes(type), ...getSuffixes(type).map(appendMetaXmlSuffix)].some((s) => fsPath.endsWith(s));
+
+const appendMetaXmlSuffix = (suffix: string): string => `${suffix}${META_XML_SUFFIX}`;
+
+const getSuffixes = (type: MetadataType): string[] => [
+  ...(type.suffix ? [type.suffix] : []),
+  ...(type.legacySuffix ? [type.legacySuffix] : []),
+];
 
 const isMixedContentOrBundle = (type: MetadataType): boolean =>
   typeof type.strategies?.adapter === 'string' && ['mixedContent', 'bundle'].includes(type.strategies.adapter);

src/resolve/sourceComponent.ts

@@ -5,7 +5,10 @@
  * For full license text, see LICENSE.txt file in the repo root or https://opensource.org/licenses/BSD-3-Clause
  */
 import { join, dirname } from 'node:path';
-import { Messages, SfError } from '@salesforce/core';
+import { SfError } from '@salesforce/core/sfError';
+import { Messages } from '@salesforce/core/messages';
+import { Lifecycle } from '@salesforce/core/lifecycle';
+
 import { XMLParser, XMLValidator } from 'fast-xml-parser';
 import { get, getString, JsonMap } from '@salesforce/ts-types';
 import { ensureArray } from '@salesforce/kit';
@@ -308,14 +311,18 @@ export class SourceComponent implements MetadataComponent {
     const children: SourceComponent[] = [];
     for (const fsPath of this.walk(dirPath)) {
       const childXml = parseMetadataXml(fsPath);
-      const fileIsRootXml = childXml?.suffix === this.type.suffix;
+      const fileIsRootXml = childXml?.suffix === this.type.suffix || childXml?.suffix === this.type.legacySuffix;
       if (childXml && !fileIsRootXml && this.type.children && childXml.suffix) {
-        // TODO: Log warning if missing child type definition
         const childTypeId = this.type.children?.suffixes[childXml.suffix];
-        const childSuffix = this.type.children.types[childTypeId]?.suffix;
+        const childType = this.type.children.types[childTypeId];
+        if (!childTypeId || !childType) {
+          void Lifecycle.getInstance().emitWarning(
+            `${fsPath}: Expected a child type for ${childXml.suffix} in ${this.type.name} but none was found.`
+          );
+        }
         const childComponent = new SourceComponent(
           {
-            name: childSuffix ? baseWithoutSuffixes(fsPath, childSuffix) : baseName(fsPath),
+            name: childType?.suffix ? baseWithoutSuffixes(fsPath, childType) : baseName(fsPath),
             type: this.type.children.types[childTypeId],
             xml: fsPath,
             parent: this,

src/utils/path.ts

@@ -25,18 +25,19 @@ export function baseName(fsPath: SourcePath): string {
 
 /**
  * the above baseName function doesn't handle components whose names have a `.` in them.
- * this will handle that, but requires you to specify the expected suffix from the mdType.
+ * this will handle that, but requires you to specify the mdType to check suffixes for.
  *
  * @param fsPath The path to evaluate
  */
-export function baseWithoutSuffixes(fsPath: SourcePath, suffix: string): string {
-  return basename(fsPath)
-    .replace(META_XML_SUFFIX, '')
-    .split('.')
-    .filter((part) => part !== suffix)
-    .join('.');
+export function baseWithoutSuffixes(fsPath: SourcePath, mdType: MetadataType): string {
+  return basename(fsPath).replace(META_XML_SUFFIX, '').split('.').filter(stringIsNotSuffix(mdType)).join('.');
 }
 
+const stringIsNotSuffix =
+  (type: MetadataType) =>
+  (part: string): boolean =>
+    part !== type.suffix && (!type.legacySuffix || part !== type.legacySuffix);
+
 /**
  * Get the name of file path extension. Different from path.extname in that it
  * does not include the '.' in the extension name. Returns an empty string if

test/snapshot/sampleProjects/legacySuffixSupport/__snapshots__/verify-md-files.expected/objects/LogEntryArchive__b.object

@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<CustomObject xmlns="http://soap.sforce.com/2006/04/metadata">
+    <deploymentStatus>Deployed</deploymentStatus>
+    <description>Big Object representation of Logger data, used as an alternative to the platform event LogEntryEvent__e, as well as a way to archive Logger data stored in Log__c, LogEntry__, and LogEntryTag__c</description>
+    <label>Log Entry Archive</label>
+    <pluralLabel>Log Entry Archives</pluralLabel>
+    <fields>
+        <fullName>Timestamp__c</fullName>
+        <businessStatus>Active</businessStatus>
+        <complianceGroup>None</complianceGroup>
+        <externalId>false</externalId>
+        <label>Timestamp</label>
+        <required>true</required>
+        <securityClassification>Confidential</securityClassification>
+        <type>DateTime</type>
+    </fields>
+    <fields>
+        <fullName>TransactionEntryNumber__c</fullName>
+        <businessStatus>Active</businessStatus>
+        <complianceGroup>None</complianceGroup>
+        <description>The sequential number of this log entry within the transaction</description>
+        <externalId>false</externalId>
+        <label>Entry #</label>
+        <precision>10</precision>
+        <required>true</required>
+        <scale>0</scale>
+        <securityClassification>Confidential</securityClassification>
+        <type>Number</type>
+        <unique>false</unique>
+    </fields>
+    <fields>
+        <fullName>TransactionId__c</fullName>
+        <businessStatus>Active</businessStatus>
+        <complianceGroup>None</complianceGroup>
+        <externalId>false</externalId>
+        <label>Transaction ID</label>
+        <length>36</length>
+        <required>true</required>
+        <securityClassification>Confidential</securityClassification>
+        <type>Text</type>
+        <unique>false</unique>
+    </fields>
+    <indexes>
+        <fullName>LogEntryArchiveIndex</fullName>
+        <fields>
+            <name>Timestamp__c</name>
+            <sortDirection>DESC</sortDirection>
+        </fields>
+        <fields>
+            <name>TransactionId__c</name>
+            <sortDirection>ASC</sortDirection>
+        </fields>
+        <fields>
+            <name>TransactionEntryNumber__c</name>
+            <sortDirection>DESC</sortDirection>
+        </fields>
+        <label>Log Entry Archive Index</label>
+    </indexes>
+</CustomObject>

test/snapshot/sampleProjects/legacySuffixSupport/__snapshots__/verify-md-files.expected/package.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Package xmlns="http://soap.sforce.com/2006/04/metadata">
+    <types>
+        <members>LogEntryArchive__b.Timestamp__c</members>
+        <members>LogEntryArchive__b.TransactionEntryNumber__c</members>
+        <members>LogEntryArchive__b.TransactionId__c</members>
+        <name>CustomField</name>
+    </types>
+    <types>
+        <members>LogEntryArchive__b</members>
+        <name>CustomObject</name>
+    </types>
+    <types>
+        <members>LogEntryArchive__b.LogEntryArchiveIndex</members>
+        <name>Index</name>
+    </types>
+    <version>60.0</version>
+</Package>

test/snapshot/sampleProjects/legacySuffixSupport/force-app/objects/objects/LogEntryArchive__b/LogEntryArchive__b.object-meta.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<CustomObject xmlns="http://soap.sforce.com/2006/04/metadata">
+    <deploymentStatus>Deployed</deploymentStatus>
+    <description
+    >Big Object representation of Logger data, used as an alternative to the platform event LogEntryEvent__e, as well as a way to archive Logger data stored in Log__c, LogEntry__, and LogEntryTag__c</description>
+    <label>Log Entry Archive</label>
+    <pluralLabel>Log Entry Archives</pluralLabel>
+</CustomObject>

test/snapshot/sampleProjects/legacySuffixSupport/force-app/objects/objects/LogEntryArchive__b/fields/Timestamp__c.field-meta.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<CustomField xmlns="http://soap.sforce.com/2006/04/metadata">
+    <fullName>Timestamp__c</fullName>
+    <businessStatus>Active</businessStatus>
+    <complianceGroup>None</complianceGroup>
+    <externalId>false</externalId>
+    <label>Timestamp</label>
+    <required>true</required>
+    <securityClassification>Confidential</securityClassification>
+    <type>DateTime</type>
+</CustomField>

test/snapshot/sampleProjects/legacySuffixSupport/force-app/objects/objects/LogEntryArchive__b/fields/TransactionEntryNumber__c.field-meta.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<CustomField xmlns="http://soap.sforce.com/2006/04/metadata">
+    <fullName>TransactionEntryNumber__c</fullName>
+    <businessStatus>Active</businessStatus>
+    <complianceGroup>None</complianceGroup>
+    <description>The sequential number of this log entry within the transaction</description>
+    <externalId>false</externalId>
+    <label>Entry #</label>
+    <precision>10</precision>
+    <required>true</required>
+    <scale>0</scale>
+    <securityClassification>Confidential</securityClassification>
+    <type>Number</type>
+    <unique>false</unique>
+</CustomField>

test/snapshot/sampleProjects/legacySuffixSupport/force-app/objects/objects/LogEntryArchive__b/fields/TransactionId__c.field-meta.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<CustomField xmlns="http://soap.sforce.com/2006/04/metadata">
+    <fullName>TransactionId__c</fullName>
+    <businessStatus>Active</businessStatus>
+    <complianceGroup>None</complianceGroup>
+    <externalId>false</externalId>
+    <label>Transaction ID</label>
+    <length>36</length>
+    <required>true</required>
+    <securityClassification>Confidential</securityClassification>
+    <type>Text</type>
+    <unique>false</unique>
+</CustomField>

test/snapshot/sampleProjects/legacySuffixSupport/force-app/objects/objects/LogEntryArchive__b/indexes/LogEntryArchiveIndex.indexe-meta.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<Index xmlns="http://soap.sforce.com/2006/04/metadata">
+    <fullName>LogEntryArchiveIndex</fullName>
+    <fields>
+        <name>Timestamp__c</name>
+        <sortDirection>DESC</sortDirection>
+    </fields>
+    <fields>
+        <name>TransactionId__c</name>
+        <sortDirection>ASC</sortDirection>
+    </fields>
+    <fields>
+        <name>TransactionEntryNumber__c</name>
+        <sortDirection>DESC</sortDirection>
+    </fields>
+    <label>Log Entry Archive Index</label>
+</Index>

test/snapshot/sampleProjects/legacySuffixSupport/sfdx-project.json

@@ -0,0 +1,9 @@
+{
+  "packageDirectories": [
+    {
+      "default": true,
+      "path": "force-app"
+    }
+  ],
+  "sourceApiVersion": "59.0"
+}

test/snapshot/sampleProjects/legacySuffixSupport/snapshots.test.ts

@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2023, salesforce.com, inc.
+ * All rights reserved.
+ * Licensed under the BSD 3-Clause license.
+ * For full license text, see LICENSE.txt file in the repo root or https://opensource.org/licenses/BSD-3-Clause
+ */
+import * as fs from 'node:fs';
+import * as path from 'node:path';
+import { MDAPI_OUT, fileSnap, sourceToMdapi } from '../../helper/conversions';
+
+// we don't want failing tests outputting over each other
+/* eslint-disable no-await-in-loop */
+
+describe('legacy suffix support (.indexe for bigObject index)', () => {
+  const testDir = path.join('test', 'snapshot', 'sampleProjects', 'legacySuffixSupport');
+  let mdFiles: string[];
+
+  before(async () => {
+    mdFiles = await sourceToMdapi(testDir);
+  });
+
+  it('verify md files', async () => {
+    for (const file of mdFiles) {
+      await fileSnap(file, testDir);
+    }
+  });
+
+  after(async () => {
+    await Promise.all([fs.promises.rm(path.join(testDir, MDAPI_OUT), { recursive: true, force: true })]);
+  });
+});

test/utils/path.test.ts

@@ -8,6 +8,7 @@ import { join } from 'node:path';
 import { expect } from 'chai';
 import { META_XML_SUFFIX } from '../../src/common';
 import { parseMetadataXml, trimUntil, baseName, parseNestedFullName, baseWithoutSuffixes } from '../../src/utils';
+import { MetadataType } from '../../src/registry/types';
 
 describe('Path Utils', () => {
   const root = join('path', 'to', 'whatever');
@@ -25,31 +26,57 @@ describe('Path Utils', () => {
   });
 
   describe('baseWithoutSuffixes', () => {
+    const mdTypeCommon: MetadataType = {
+      id: 'test',
+      name: 'Test',
+      directoryName: 'tests',
+    };
+    const mdType: MetadataType = {
+      ...mdTypeCommon,
+      suffix: 'xyz',
+    };
+    const mdTypeLegacySuffix: MetadataType = {
+      ...mdType,
+      suffix: 'xyz',
+      legacySuffix: 'xyzz',
+    };
+
     it('Should strip specified suffixes from a file path with a dot', () => {
       const path = join(root, 'a.ext.xyz');
-      expect(baseWithoutSuffixes(path, 'xyz')).to.equal('a.ext');
+      expect(baseWithoutSuffixes(path, mdType)).to.equal('a.ext');
     });
 
     it('Should strip specified suffixes from a file path with a dot and standard ending', () => {
       const path = join(root, `a.ext.xyz${META_XML_SUFFIX}`);
-      expect(baseWithoutSuffixes(path, 'xyz')).to.equal('a.ext');
+      expect(baseWithoutSuffixes(path, mdType)).to.equal('a.ext');
     });
 
     it('Should handle paths with no suffixes', () => {
       const path = join(root, 'a');
-      expect(baseWithoutSuffixes(path, 'ext')).to.equal('a');
+      expect(baseWithoutSuffixes(path, mdTypeCommon)).to.equal('a');
     });
 
     it('Should preserve non-matching suffixes', () => {
       const path = join(root, 'a.xyz');
-      expect(baseWithoutSuffixes(path, 'ext')).to.equal('a.xyz');
+      expect(baseWithoutSuffixes(path, mdTypeCommon)).to.equal('a.xyz');
     });
 
     it('Should remove the standard suffix and a custom suffix', () => {
-      const path = join(root, `a.ext${META_XML_SUFFIX}`);
-      expect(baseWithoutSuffixes(path, 'ext')).to.equal('a');
+      const path = join(root, `a.xyz${META_XML_SUFFIX}`);
+      expect(baseWithoutSuffixes(path, mdType)).to.equal('a');
+    });
+
+    it('should remove a legacy suffix', () => {
+      const path = join(root, 'a.xyzz');
+      expect(baseWithoutSuffixes(path, mdTypeLegacySuffix)).to.equal('a');
+    });
+
+    it('should remove a legacy suffix with the standard meta', () => {
+      const path = join(root, `a.xyzz${META_XML_SUFFIX}`);
+      expect(baseWithoutSuffixes(path, mdTypeLegacySuffix)).to.equal('a');
     });
   });
+
   describe('trimUntil', () => {
     it('should return given path if part is not found', () => {
       expect(trimUntil(root, 'test')).to.equal(root);