typedetect is a trivial program that reads input from stdin or a specified
file, attempts to determine its file type (json and xml are
supported), and prints the file type, and a preview (head and tail) of the
file contents. It demonstrates use of the neilotoole/streamcache
Go package.
$ go install github.com/neilotoole/streamcache/examples/typedetect
$ typedetect testdata/data.json
# Or:
$ cat testdata/data.xml | typedetect