fix panic haskell cataloger

syft/pkg/cataloger/haskell/parse_stack_lock.go

@@ -83,14 +83,14 @@ func parseStackLock(_ file.Resolver, _ *generic.Environment, reader file.Locatio
 
 	return pkgs, nil, nil
 }
+
 func parseStackPackageEncoding(pkgEncoding string) (name, version, hash string) {
 	lastDashIdx := strings.LastIndex(pkgEncoding, "-")
 	if lastDashIdx == -1 {
 		name = pkgEncoding
 		return
-	} else {
-		name = pkgEncoding[:lastDashIdx]
 	}
+	name = pkgEncoding[:lastDashIdx]
 	remainingEncoding := pkgEncoding[lastDashIdx+1:]
 	encodingSplits := strings.Split(remainingEncoding, "@")
 	version = encodingSplits[0]

syft/pkg/cataloger/haskell/test-fixtures/postgrest.stack.yaml

@@ -0,0 +1,32 @@
+resolver: lts-19.14 # 2022-07-01, GHC 9.0.2
+
+nix:
+  packages:
+    - pcre
+    - pkgconfig
+    - postgresql
+    - zlib
+  # disable pure by default so that the test enviroment can be passed
+  pure: false
+
+extra-deps:
+  - HTTP-4000.3.16
+  - configurator-pg-0.2.6
+  - hashable-1.4.1.0
+  - hashtables-1.3
+  - hasql-1.6.1.1
+  - hasql-dynamic-statements-0.3.1.2
+  - hasql-implicits-0.1.0.5
+  - hasql-notifications-0.2.0.3
+  - hasql-pool-0.8.0.6
+  - hasql-transaction-1.0.1.2
+  - isomorphism-class-0.1.0.6
+  - lens-aeson-1.1.3
+  - optparse-applicative-0.16.1.0
+  - postgresql-binary-0.12.5
+  - protolude-0.3.2
+  - ptr-0.16.8.2
+  - text-builder-0.6.7
+  - text-builder-dev-0.3.3
+  - git: https://github.com/PostgREST/postgresql-libpq.git
+    commit: 33ff97db570b5b432255f5f24a68db51453f6eb8

syft/pkg/cataloger/haskell/test-fixtures/postgrest.stack.yaml.lock

@@ -0,0 +1,149 @@
+# This file was autogenerated by Stack.
+# You should not edit this file by hand.
+# For more information, please see the documentation at:
+#   https://docs.haskellstack.org/en/stable/lock_files
+
+packages:
+- completed:
+    hackage: HTTP-4000.3.16@sha256:6042643c15a0b43e522a6693f1e322f05000d519543a84149cb80aeffee34f71,5947
+    pantry-tree:
+      size: 1428
+      sha256: b73a7f6d21cf20bbf819e19039409c9010efb5000d2b72cdd8fd67a9027c14e8
+  original:
+    hackage: HTTP-4000.3.16
+- completed:
+    hackage: configurator-pg-0.2.6@sha256:cd9b06a458428e493a4d6def725af7ab1ab0fef678fbd871f9586fc7f9aa70be,2849
+    pantry-tree:
+      size: 2463
+      sha256: 97efe7a22afc93033bda5adcffdabc0f1c30dc32b2c3ba02114ce7cd74c942fd
+  original:
+    hackage: configurator-pg-0.2.6
+- completed:
+    hackage: hashable-1.4.1.0@sha256:50b2f002c68fe67730ee7a3cd8607486197dd99b084255005ad51ecd6970a41b,5019
+    pantry-tree:
+      size: 1248
+      sha256: 9af2f7a42674f7effcabbebc043f97057240783f1709338a77f58216f4a5f18c
+  original:
+    hackage: hashable-1.4.1.0
+- completed:
+    hackage: hashtables-1.3@sha256:ab21804fdafbbd8ad918b2911dabb729ae0ea891780fe66bf7804cbcd07edadf,10379
+    pantry-tree:
+      size: 2895
+      sha256: e71f113ad989dbc994e0fb52bcc219d62930de9afa8b3441bf7909e864481b33
+  original:
+    hackage: hashtables-1.3
+- completed:
+    hackage: hasql-1.6.1.1@sha256:948a2137308cc5354e4997bc3666753867124cd25db792424cb9614b1c1b44cf,6626
+    pantry-tree:
+      size: 2622
+      sha256: 28d21bf061522fc513f040e9c383b90532222b7258216cc094e07736add8be10
+  original:
+    hackage: hasql-1.6.1.1
+- completed:
+    hackage: hasql-dynamic-statements-0.3.1.2@sha256:417aa533c84f074e2fa16bb2c4d4231326aa512097dd1025d915388e56acd1eb,2675
+    pantry-tree:
+      size: 595
+      sha256: 91696d3f3e0ef3254772ae5a8e4e89be68285febb49b302ed83d85ac4037a417
+  original:
+    hackage: hasql-dynamic-statements-0.3.1.2
+- completed:
+    hackage: hasql-implicits-0.1.0.5@sha256:d16aacad6dc21428d72447d3ae8bcc03839a2f0aa1ec29c797ed9aca4609f9af,1361
+    pantry-tree:
+      size: 264
+      sha256: 0451b99a0a1d02db673d0c40acdf60d4e769e15852eed9e8dc05bffaf43efb70
+  original:
+    hackage: hasql-implicits-0.1.0.5
+- completed:
+    hackage: hasql-notifications-0.2.0.3@sha256:aca3f7ee847a8f0b7ef6f989dc48f4a094a06c1a34e92aa3c8bb230085966ea6,2027
+    pantry-tree:
+      size: 452
+      sha256: 999f0f2856a00d21f4498a8a58452bbefc4ea972fe2984fd234a68a5fe61d98b
+  original:
+    hackage: hasql-notifications-0.2.0.3
+- completed:
+    hackage: hasql-pool-0.8.0.6@sha256:b63bb83409bab5bc20ff24f5d62205e9b117701a0fc24531ddeac20ab8c2a42c,1818
+    pantry-tree:
+      size: 346
+      sha256: c4100946b7eae44375511e35a393abe2e1db0e5637c68cea8f53176b796bfd5b
+  original:
+    hackage: hasql-pool-0.8.0.6
+- completed:
+    hackage: hasql-transaction-1.0.1.2@sha256:297b158cd1f0727f9b0e175bd7d3741c1bcb725a8094956d0ee79b41aafdb30a,2890
+    pantry-tree:
+      size: 983
+      sha256: 3679e6d5c835cc17a8fa0c252b8221e282880044b7219aa1de2531bbd5c40691
+  original:
+    hackage: hasql-transaction-1.0.1.2
+- completed:
+    hackage: isomorphism-class-0.1.0.6@sha256:d93da31287359c761953b876354de28381f409c5c50e3241c572a443e50c553d,1703
+    pantry-tree:
+      size: 465
+      sha256: c97f922d1ae8f1a0db4c28fac9383d2716934879e95ff0b2b88ebb861d6fba14
+  original:
+    hackage: isomorphism-class-0.1.0.6
+- completed:
+    hackage: lens-aeson-1.1.3@sha256:52c8eaecd2d1c2a969c0762277c4a8ee72c339a686727d5785932e72ef9c3050,1764
+    pantry-tree:
+      size: 541
+      sha256: b31392b78f2a03111c805f4400007778eb93b49f998ab41dfbebaaf9b5526bad
+  original:
+    hackage: lens-aeson-1.1.3
+- completed:
+    hackage: optparse-applicative-0.16.1.0@sha256:418c22ed6a19124d457d96bc66bd22c93ac22fad0c7100fe4972bbb4ac989731,4982
+    pantry-tree:
+      size: 2979
+      sha256: dd092d843091c08691485d68a1908517079b1bc6f3d73928f37635a19dc27fc1
+  original:
+    hackage: optparse-applicative-0.16.1.0
+- completed:
+    hackage: postgresql-binary-0.12.5@sha256:de9da3cba9be541d6c75ae8da2858c33d83dc1b2e0c639b0b9781816b78a91f4,5594
+    pantry-tree:
+      size: 1619
+      sha256: b392337f91031a5b3407393e2f04dfe4e7a28019e88eae6a9370538b90e28c51
+  original:
+    hackage: postgresql-binary-0.12.5
+- completed:
+    hackage: protolude-0.3.2@sha256:2a38b3dad40d238ab644e234b692c8911423f9d3ed0e36b62287c4a698d92cd1,2240
+    pantry-tree:
+      size: 1594
+      sha256: a36d2912ac552d950ba4476de7d950b56b82dd28e48b9f4d0efee938f10bc525
+  original:
+    hackage: protolude-0.3.2
+- completed:
+    hackage: ptr-0.16.8.2@sha256:708ebb95117f2872d2c5a554eb6804cf1126e86abe793b2673f913f14e5eb1ac,3959
+    pantry-tree:
+      size: 1303
+      sha256: 557c438345de19f82bf01d676100da2a191ef06f624e7a4b90b09ac17cbb52a5
+  original:
+    hackage: ptr-0.16.8.2
+- completed:
+    hackage: text-builder-0.6.7@sha256:efbb3e06107e9c8d1cfe85c963938ca9f375a74379af03da3173be4ef5c37bcf,2364
+    pantry-tree:
+      size: 425
+      sha256: cd0ae197e6f9f3860a8ab71f5b87c4a8452ed1fce2fdfd35e36d68ded6e6648e
+  original:
+    hackage: text-builder-0.6.7
+- completed:
+    hackage: text-builder-dev-0.3.3@sha256:79ec422defcc2e5b34f94129c72b98d34b2efc1ed8bbd945ccb8f4f535a892c3,2784
+    pantry-tree:
+      size: 724
+      sha256: 8883631a132438e7892fcb13e89d6bbcdc0ac76c56fbea8df8d7aa482ce81f73
+  original:
+    hackage: text-builder-dev-0.3.3
+- completed:
+    name: postgresql-libpq
+    version: 0.9.4.3
+    git: https://github.com/PostgREST/postgresql-libpq.git
+    pantry-tree:
+      size: 1081
+      sha256: 0df271e48af32eb8292a45301af45e114110d54099ee73dbc609d39770e8175e
+    commit: 33ff97db570b5b432255f5f24a68db51453f6eb8
+  original:
+    git: https://github.com/PostgREST/postgresql-libpq.git
+    commit: 33ff97db570b5b432255f5f24a68db51453f6eb8
+snapshots:
+- completed:
+    size: 618951
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/19/14.yaml
+    sha256: 4c31d4ef975b0211078862566aedf3b82b6cea569fc2cde4c72a51e5a8d236ce
+  original: lts-19.14

syft/pkg/cataloger/haskell/test-fixtures/stack.yaml.lock

@@ -67,6 +67,19 @@ packages:
       sha256: 557c438345de19f82bf01d676100da2a191ef06f624e7a4b90b09ac17cbb52a5
   original:
     hackage: ptr-0.16.8.2@sha256:708ebb95117f2872d2c5a554eb6804cf1126e86abe793b2673f913f14e5eb1ac,3959
+- completed:
+    commit: a5847301404583e16d55cd4d051b8e605d704fbc
+    git: https://github.com/runtimeverification/haskell-backend.git
+    name: kore
+    pantry-tree:
+      sha256: 30a502eda589be5af735b1b59760ce3e0235c0cae8961978a46b3564dd8db32b
+      size: 44685
+    subdir: kore
+    version: 0.60.0.0
+  original:
+    commit: a5847301404583e16d55cd4d051b8e605d704fbc
+    git: https://github.com/runtimeverification/haskell-backend.git
+    subdir: kore
 snapshots:
 - completed:
     size: 618951

syft/source/stereoscope_image_source.go

@@ -64,7 +64,6 @@ func NewFromStereoscopeImage(cfg StereoscopeImageConfig) (*StereoscopeImageSourc
 	if cfg.Platform != nil {
 		opts = append(opts, stereoscope.WithPlatform(cfg.Platform.String()))
 	}
-
 	img, err := stereoscope.GetImageFromSource(ctx, cfg.Reference, cfg.From, opts...)
 	if err != nil {
 		return nil, fmt.Errorf("unable to load image: %w", err)