Add bzip2 archive support for unpack parameter

Extends archive extraction to support bzip2 compressed files (.bz2) and
bzip2 compressed tarballs (.tar.bz2, .tbz2, .tb2) in addition to the
existing gzip support.

Implementation:
- Added application/x-bzip2 and application/x-bzip MIME type detection
- Added bunzip2 decompression handler in inflate()
- Extended extractArchive() to handle two-stage bzip2 extraction
- Mirrors existing gzip pattern for consistency

Supported formats after this change:
- .tar, .tar.gz/.tgz, .tar.bz2/.tbz2/.tb2, .gz, .bz2, .zip

Updated documentation in README.md to reflect new capabilities.

Fixes #81

Signed-off-by: Mathias Bogaert <[email protected]>

Author: analytically

Dockerfile

@@ -24,6 +24,7 @@ FROM ${base_image} AS resource
 RUN apk --no-cache add \
     tzdata \
     ca-certificates \
+    cmd:bunzip2 \
     cmd:unzip \
     cmd:tar \
     cmd:gunzip

README.md

@@ -154,7 +154,7 @@ Places the following files in the destination:
 
 * `skip_download`: *Optional.* Skip downloading object from S3. Same parameter as source configuration but used to define/override by get. Value needs to be a true/false string.
 
-* `unpack`: *Optional.* If true and the file is an archive (tar, gzipped tar, other gzipped file, or zip), unpack the file. Gzipped tarballs will be both ungzipped and untarred. It is ignored when `get` is running on the initial version.
+* `unpack`: *Optional.* If true and the file is an archive (tar, gzipped tar, bzip2 compressed tar, other gzipped file, other bzip2 compressed file, or zip), unpack the file. Gzipped and bzip2 compressed tarballs will be both decompressed and untarred. It is ignored when `get` is running on the initial version.
 
 * `download_tags`: *Optional.* Write object tags to `tags.json`. Value needs to be a true/false string.
 
@@ -326,4 +326,4 @@ In addition to the required permissions above, the `s3:PutObjectTagging` permiss
 ### Contributing
 
 Please make all pull requests to the `master` branch and ensure tests pass
-locally.
+locally.

go.mod

@@ -5,54 +5,59 @@ go 1.24.0
 toolchain go1.24.1
 
 require (
-	github.com/aws/aws-sdk-go-v2 v1.37.0
-	github.com/aws/aws-sdk-go-v2/config v1.30.1
-	github.com/aws/aws-sdk-go-v2/credentials v1.18.1
-	github.com/aws/aws-sdk-go-v2/feature/s3/manager v1.18.1
-	github.com/aws/aws-sdk-go-v2/service/s3 v1.85.0
-	github.com/aws/aws-sdk-go-v2/service/sts v1.35.0
+	github.com/aws/aws-sdk-go-v2 v1.40.0
+	github.com/aws/aws-sdk-go-v2/config v1.32.1
+	github.com/aws/aws-sdk-go-v2/credentials v1.19.1
+	github.com/aws/aws-sdk-go-v2/feature/s3/manager v1.20.11
+	github.com/aws/aws-sdk-go-v2/service/s3 v1.92.0
+	github.com/aws/aws-sdk-go-v2/service/sts v1.41.1
 	github.com/cppforlife/go-semi-semantic v0.0.0-20160921010311-576b6af77ae4
 	github.com/fatih/color v1.18.0
 	github.com/google/uuid v1.6.0
 	github.com/h2non/filetype v1.1.3
-	github.com/maxbrunsfeld/counterfeiter/v6 v6.11.3
+	github.com/maxbrunsfeld/counterfeiter/v6 v6.12.0
 	github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db
-	github.com/onsi/ginkgo/v2 v2.23.3
-	github.com/onsi/gomega v1.37.0
-	github.com/vbauerster/mpb/v8 v8.10.2
+	github.com/onsi/ginkgo/v2 v2.27.2
+	github.com/onsi/gomega v1.38.2
+	github.com/vbauerster/mpb/v8 v8.11.2
 )
 
 require (
+	github.com/Masterminds/semver/v3 v3.4.0 // indirect
 	github.com/VividCortex/ewma v1.2.0 // indirect
 	github.com/acarl005/stripansi v0.0.0-20180116102854-5a71ef0e047d // indirect
-	github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.7.0 // indirect
-	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.18.0 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/configsources v1.4.0 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.7.0 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/ini v1.8.3 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/v4a v1.4.0 // indirect
-	github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.13.0 // indirect
-	github.com/aws/aws-sdk-go-v2/service/internal/checksum v1.8.0 // indirect
-	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.13.0 // indirect
-	github.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.19.0 // indirect
-	github.com/aws/aws-sdk-go-v2/service/sso v1.26.0 // indirect
-	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.31.0 // indirect
-	github.com/aws/smithy-go v1.22.5 // indirect
-	github.com/go-logr/logr v1.4.2 // indirect
+	github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.7.3 // indirect
+	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.18.14 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/configsources v1.4.14 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.7.14 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/ini v1.8.4 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/v4a v1.4.14 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.13.3 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/checksum v1.9.5 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.13.14 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.19.14 // indirect
+	github.com/aws/aws-sdk-go-v2/service/signin v1.0.1 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sso v1.30.4 // indirect
+	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.35.9 // indirect
+	github.com/aws/smithy-go v1.23.2 // indirect
+	github.com/clipperhouse/stringish v0.1.1 // indirect
+	github.com/clipperhouse/uax29/v2 v2.3.0 // indirect
+	github.com/go-logr/logr v1.4.3 // indirect
 	github.com/go-task/slim-sprig/v3 v3.0.0 // indirect
 	github.com/google/go-cmp v0.7.0 // indirect
-	github.com/google/pprof v0.0.0-20241210010833-40e02aabc2ad // indirect
+	github.com/google/pprof v0.0.0-20251114195745-4902fdda35c8 // indirect
 	github.com/kr/pretty v0.3.1 // indirect
 	github.com/mattn/go-colorable v0.1.14 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
-	github.com/mattn/go-runewidth v0.0.16 // indirect
+	github.com/mattn/go-runewidth v0.0.19 // indirect
 	github.com/onsi/ginkgo v1.2.1-0.20170102031522-a23f924ce96d // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
-	golang.org/x/mod v0.26.0 // indirect
-	golang.org/x/net v0.42.0 // indirect
-	golang.org/x/sync v0.16.0 // indirect
-	golang.org/x/sys v0.34.0 // indirect
-	golang.org/x/text v0.27.0 // indirect
-	golang.org/x/tools v0.35.0 // indirect
+	go.yaml.in/yaml/v3 v3.0.4 // indirect
+	golang.org/x/mod v0.30.0 // indirect
+	golang.org/x/net v0.47.0 // indirect
+	golang.org/x/sync v0.18.0 // indirect
+	golang.org/x/sys v0.38.0 // indirect
+	golang.org/x/text v0.31.0 // indirect
+	golang.org/x/tools v0.39.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )