Fix open files while removing temp directory

Author: snmed

README.md

@@ -1,2 +1,120 @@
 # go-offline-packager
 A simple tool to manage dependencies in an air-gapped environment.
+
+## Usage
+
+```bash
+Usage:
+  go-offline-packager.exe [OPTIONS] <command>
+
+Application Options:
+      --go-bin=  Set full path to go binary (default: C:\Program
+                 Files\Go\bin\go.exe) [%GOP_GO_BIN%]
+  -v, --verbose  Verbose output
+
+Help Options:
+  -h, --help     Show this help message
+
+Available commands:
+  pack            Download modules and pack it into a zip file.
+  publish-folder  Publish archive to a folder so it can be used as proxy source.
+  publish-jfrog   Publish archive to jfrog artifactory (requires installed and configured jfrog-cli).
+  version         Show version.
+```
+
+### Pack
+Pack will download all your dependencies and create a zip file with it.
+
+```bash
+Usage:
+  go-offline-packager.exe [OPTIONS] pack [pack-OPTIONS]
+
+Download modules and pack it into a zip file.
+
+Application Options:
+      --go-bin=          Set full path to go binary (default: C:\Program
+                         Files\Go\bin\go.exe) [%GOP_GO_BIN%]
+  -v, --verbose          Verbose output
+
+Help Options:
+  -h, --help             Show this help message
+
+[pack command options]
+      -m, --module=      Modules to pack (github.com/jessevdk/go-flags or
+                         github.com/jessevdk/go-flags@v1.4.0)
+      -g, --go-mod-file= Pack all dependencies specified in go.mod file.
+      -o, --out=         Output file name of the zip archive. (default:
+                         gop_dependencies.zip)
+      -t, --transitive   Ensure all transitive dependencies are included.
+```
+One can either use `-m` to specify dependencies or use the `-g` flag to use an existing go.mod file.
+
+#### Example
+```bash
+# Use the -m flag
+go-offline-packager.exe pack -t -v -m github.com/jessevdk/go-flags -m github.com/go-sharp/color@v1.9.1
+# Use a go.mod file
+go-offline-packager.exe pack -t -v -g go.mod
+```
+
+### Publish Folder
+On the computer in the air gapped environment one can use `publish-folder` to extract the dependencies into a folder.
+```bash
+Usage:
+  go-offline-packager.exe [OPTIONS] publish-folder [publish-folder-OPTIONS] ARCHIVE
+
+Publish archive to a folder so it can be used as proxy source.
+
+Application Options:
+      --go-bin=      Set full path to go binary (default: C:\Program
+                     Files\Go\bin\go.exe) [%GOP_GO_BIN%]
+  -v, --verbose      Verbose output
+
+Help Options:
+  -h, --help         Show this help message
+
+[publish-folder command options]
+      -o, --out=     Output folder for the archive.
+
+[publish-folder command arguments]
+  ARCHIVE:           Path to archive with dependencies.
+```
+
+#### Example
+```bash
+go-offline-packager.exe publish-folder  -o mymodules gop_dependencies.zip
+Publish-Folder: extracting archive
+Publish-Folder: processing files
+Publish-Folder: published archive to: /home/snmed/mymodules
+Publish-Folder: hint: set GOPROXY to use folder for dependencies:
+        go env -w GOPROXY=file:////home/snmed/mymodules
+Publish-Folder: hint: in an air-gapped env set GOSUMDB to of:
+        go env -w GOSUMDB=off
+```
+
+### Publish JFrog Artifactory
+On the computer in the air gapped environment one can use `publish-jfrog` to upload dependencies into a JFrog Artifactory.
+> Caveat: jfrog-cli must be installed and configured, otherwise dependencies can't be uploaded. Binary will be found automatically if installed in a OS search path, otherwise one has to specify the path to the binary.
+
+```bash
+Usage:
+  go-offline-packager.exe [OPTIONS] publish-jfrog [publish-jfrog-OPTIONS] ARCHIVE
+
+Publish archive to jfrog artifactory (requires installed and configured
+jfrog-cli).
+
+Application Options:
+      --go-bin=        Set full path to go binary (default: C:\Program
+                       Files\Go\bin\go.exe) [%GOP_GO_BIN%]
+  -v, --verbose        Verbose output
+
+Help Options:
+  -h, --help           Show this help message
+
+[publish-jfrog command options]
+          --jfrog-bin= Set full path to the jfrog-cli binary [%GOP_JFROG_BIN%]
+      -r, --repo=      Artifactory go repository name ex. go-local.
+
+[publish-jfrog command arguments]
+  ARCHIVE:             Path to archive with dependencies.
+```

main.go

@@ -16,7 +16,7 @@ import (
 	"github.com/jessevdk/go-flags"
 )
 
-const version = "v0.1.0"
+const version = "v0.1.1"
 
 var commonOpts options
 var parser = flags.NewParser(&commonOpts, flags.HelpFlag|flags.PassDoubleDash)
@@ -209,6 +209,7 @@ func createZipArchive(dir, dst string) error {
 			log.Printf("%v failed to add to archive: %v\n", errorRedPrefix, err)
 			continue
 		}
+		defer reader.Close()
 
 		fiStat, err := os.Stat(f)
 		if err != nil {