cache: add support for `zstd --adapt`

Signed-off-by: Sora Morimoto <sora@morimoto.io>

packages/cache/RELEASES.md

@@ -1,5 +1,10 @@
 # @actions/cache Releases
 
+### 3.3.0
+
+- Add support for zstd adapt mode. [#1772](https://github.com/actions/toolkit/pull/1772)
+- Unlock zstd long mode. [#1772](https://github.com/actions/toolkit/pull/1772)
+
 ### 3.2.4
 
 - Updated `isGhes` check to include `.ghe.com` and `.ghe.localhost` as accepted hosts

packages/cache/__tests__/tar.test.ts

@@ -71,10 +71,7 @@ test('zstd extract tar', async () => {
     ]
       .concat(IS_WINDOWS ? ['--force-local'] : [])
       .concat(IS_MAC ? ['--delay-directory-restore'] : [])
-      .concat([
-        '--use-compress-program',
-        IS_WINDOWS ? '"zstd -d --long=30"' : 'unzstd --long=30'
-      ])
+      .concat(['--use-compress-program', '"zstd -d --long=30"'])
       .join(' '),
     undefined,
     {
@@ -231,10 +228,7 @@ test('zstd create tar', async () => {
     ]
       .concat(IS_WINDOWS ? ['--force-local'] : [])
       .concat(IS_MAC ? ['--delay-directory-restore'] : [])
-      .concat([
-        '--use-compress-program',
-        IS_WINDOWS ? '"zstd -T0 --long=30"' : 'zstdmt --long=30'
-      ])
+      .concat(['--use-compress-program', '"zstd -T0 --adapt --long=30"'])
       .join(' '),
     undefined, // args
     {
@@ -292,7 +286,7 @@ test('zstd create tar with windows BSDtar', async () => {
     expect(execMock).toHaveBeenNthCalledWith(
       2,
       [
-        'zstd -T0 --long=30 --force -o',
+        'zstd -T0 --adapt --long=30 --force -o',
         CacheFilename.Zstd.replace(/\\/g, '/'),
         TarFilename.replace(/\\/g, '/')
       ].join(' '),
@@ -365,10 +359,7 @@ test('zstd list tar', async () => {
     ]
       .concat(IS_WINDOWS ? ['--force-local'] : [])
       .concat(IS_MAC ? ['--delay-directory-restore'] : [])
-      .concat([
-        '--use-compress-program',
-        IS_WINDOWS ? '"zstd -d --long=30"' : 'unzstd --long=30'
-      ])
+      .concat(['--use-compress-program', '"zstd -d --long=30"'])
       .join(' '),
     undefined,
     {
@@ -442,7 +433,7 @@ test('zstdWithoutLong list tar', async () => {
     ]
       .concat(IS_WINDOWS ? ['--force-local'] : [])
       .concat(IS_MAC ? ['--delay-directory-restore'] : [])
-      .concat(['--use-compress-program', IS_WINDOWS ? '"zstd -d"' : 'unzstd'])
+      .concat(['--use-compress-program', '"zstd -d"'])
       .join(' '),
     undefined,
     {

packages/cache/src/internal/cacheUtils.ts

@@ -102,10 +102,14 @@ export async function getCompressionMethod(): Promise<CompressionMethod> {
   const version = semver.clean(versionOutput)
   core.debug(`zstd version: ${version}`)
 
-  if (versionOutput === '') {
+  if (version === null) {
     return CompressionMethod.Gzip
-  } else {
+  } else if (semver.lt(version, '1.3.2')) {
     return CompressionMethod.ZstdWithoutLong
+  } else if (semver.lt(version, '1.3.6')) {
+    return CompressionMethod.ZstdWithoutAdapt
+  } else {
+    return CompressionMethod.Zstd
   }
 }
 

packages/cache/src/internal/constants.ts

@@ -6,8 +6,11 @@ export enum CacheFilename {
 export enum CompressionMethod {
   Gzip = 'gzip',
   // Long range mode was added to zstd in v1.3.2.
-  // This enum is for earlier version of zstd that does not have --long support
+  // https://github.com/facebook/zstd/releases/tag/v1.3.2
   ZstdWithoutLong = 'zstd-without-long',
+  // Adapt mode was added to zstd in v1.3.6.
+  // https://github.com/facebook/zstd/releases/tag/v1.3.6
+  ZstdWithoutAdapt = 'zstd-without-adapt',
   Zstd = 'zstd'
 }
 

packages/cache/src/internal/tar.ts

@@ -172,7 +172,6 @@ async function getDecompressionProgram(
   archivePath: string
 ): Promise<string[]> {
   // -d: Decompress.
-  // unzstd is equivalent to 'zstd -d'
   // --long=#: Enables long distance matching with # bits. Maximum is 30 (1GB) on 32-bit OS and 31 (2GB) on 64-bit.
   // Using 30 here because we also support 32-bit self-hosted runners.
   const BSD_TAR_ZSTD =
@@ -187,10 +186,7 @@ async function getDecompressionProgram(
             TarFilename,
             archivePath.replace(new RegExp(`\\${path.sep}`, 'g'), '/')
           ]
-        : [
-            '--use-compress-program',
-            IS_WINDOWS ? '"zstd -d --long=30"' : 'unzstd --long=30'
-          ]
+        : ['--use-compress-program', '"zstd -d --long=30"']
     case CompressionMethod.ZstdWithoutLong:
       return BSD_TAR_ZSTD
         ? [
@@ -198,7 +194,7 @@ async function getDecompressionProgram(
             TarFilename,
             archivePath.replace(new RegExp(`\\${path.sep}`, 'g'), '/')
           ]
-        : ['--use-compress-program', IS_WINDOWS ? '"zstd -d"' : 'unzstd']
+        : ['--use-compress-program', '"zstd -d"']
     default:
       return ['-z']
   }
@@ -206,7 +202,7 @@ async function getDecompressionProgram(
 
 // Used for creating the archive
 // -T#: Compress using # working thread. If # is 0, attempt to detect and use the number of physical CPU cores.
-// zstdmt is equivalent to 'zstd -T0'
+// --adapt: Dynamically adapt compression level to I/O conditions.
 // --long=#: Enables long distance matching with # bits. Maximum is 30 (1GB) on 32-bit OS and 31 (2GB) on 64-bit.
 // Using 30 here because we also support 32-bit self-hosted runners.
 // Long range mode is added to zstd in v1.3.2 release, so we will not use --long in older version of zstd.
@@ -221,16 +217,21 @@ async function getCompressionProgram(
     IS_WINDOWS
   switch (compressionMethod) {
     case CompressionMethod.Zstd:
+      return BSD_TAR_ZSTD
+        ? [
+            'zstd -T0 --adapt --long=30 --force -o',
+            cacheFileName.replace(new RegExp(`\\${path.sep}`, 'g'), '/'),
+            TarFilename
+          ]
+        : ['--use-compress-program', '"zstd -T0 --adapt --long=30"']
+    case CompressionMethod.ZstdWithoutAdapt:
       return BSD_TAR_ZSTD
         ? [
             'zstd -T0 --long=30 --force -o',
             cacheFileName.replace(new RegExp(`\\${path.sep}`, 'g'), '/'),
             TarFilename
           ]
-        : [
-            '--use-compress-program',
-            IS_WINDOWS ? '"zstd -T0 --long=30"' : 'zstdmt --long=30'
-          ]
+        : ['--use-compress-program', '"zstd -T0 --long=30"']
     case CompressionMethod.ZstdWithoutLong:
       return BSD_TAR_ZSTD
         ? [
@@ -238,7 +239,7 @@ async function getCompressionProgram(
             cacheFileName.replace(new RegExp(`\\${path.sep}`, 'g'), '/'),
             TarFilename
           ]
-        : ['--use-compress-program', IS_WINDOWS ? '"zstd -T0"' : 'zstdmt']
+        : ['--use-compress-program', '"zstd -T0"']
     default:
       return ['-z']
   }