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[](https://github.com/giterlizzi/perl-URI-PackageURL/releases) [](https://github.com/giterlizzi/perl-URI-PackageURL/actions) [](https://github.com/giterlizzi/perl-URI-PackageURL) [](https://github.com/giterlizzi/perl-URI-PackageURL) [](https://github.com/giterlizzi/perl-URI-PackageURL) [](https://github.com/giterlizzi/perl-URI-PackageURL/issues) [](https://coveralls.io/github/giterlizzi/perl-URI-PackageURL)
# URI::PackageURL - Perl extension for PURL (Package URL) and VERS (Version Range)
## Synopsis
```perl
use URI::PackageURL;
# OO-interface
# Encode components in PURL string
$purl = URI::PackageURL->new(
type => 'cpan',
namespace => 'GDT',
name => 'URI-PackageURL',
version => '2.25'
);
say $purl; # pkg:cpan/GDT/URI-PackageURL@2.25
# Parse a PURL string
$purl = URI::PackageURL->from_string('pkg:cpan/GDT/URI-PackageURL@2.25');
# use setter methods
my $purl = URI::PackageURL->new(type => 'cpan', namespace => 'GDT', name => 'URI-PackageURL');
say $purl; # pkg:cpan/GDT/URI-PackageURL
say $purl->version; # undef
$purl->version('2.25');
say $purl; # pkg:cpan/GDT/URI-PackageURL@2.25
say $purl->version; # 2.25
# exported functions
$purl = decode_purl('pkg:cpan/GDT/URI-PackageURL@2.25');
say $purl->type; # cpan
$purl_string = encode_purl(type => cpan, namespace => 'GDT', name => 'URI-PackageURL', version => '2.25');
say $purl_string; # pkg:cpan/GDT/URI-PackageURL@2.25
# uses the legacy CPAN PURL type, to be used only for compatibility (will be removed in the future)
$ENV{PURL_LEGACY_CPAN_TYPE} = 1;
URI::PackageURL->new(type => 'cpan', name => 'URI::PackageURL');
# alias
$purl = PURL->new(
type => 'cpan',
namespace => 'GDT',
name => 'URI-PackageURL',
version => '2.25'
);
$purl = PURL->from_string('pkg:cpan/GDT/URI-PackageURL');
# clone
$cloned = $purl->clone;
$cloned->version('1.00');
say $cloned; # pkg:cpan/GDT/URI-PackageURL@1.00
say $purl; # pkg:cpan/GDT/URI-PackageURL@2.25
```
## purl-tool a CLI for URI::PackageURL module
Inspect and export "purl" string in various formats (JSON, YAML, Data::Dumper, ENV):
```console
$ purl-tool pkg:cpan/GDT/URI-PackageURL@2.25 --json | jq
{
"name": "URI-PackageURL",
"namespace": "GDT",
"qualifiers": {},
"subpath": null,
"type": "cpan",
"version": "2.25"
}
```
Download package using "purl" string:
```console
$ wget $(purl-tool pkg:cpan/GDT/URI-PackageURL@2.25 --download-url)
```
Use "purl" string in your shell-scripts:
```bash
#!bash
set -e
PURL="pkg:cpan/GDT/URI-PackageURL@2.25"
eval $(purl-tool "$PURL" --env)
echo "Download $PURL_NAME $PURL_VERSION"
wget $PURL_DOWNLOAD_URL
echo "Build and install module $PURL_NAME $PURL_VERSION"
tar xvf $PURL_NAME-$PURL_VERSION.tar.gz
cd $PURL_NAME-$PURL_VERSION
perl Makefile.PL
make && make install
```
Create on-the-fly a "purl" string:
```console
$ purl-tool --type cpan \
--namespace GDT \
--name URI-PackageURL \
--version 2.25
```
Validate a PURL string:
```bash
if $(purl-tool $PURL_STRING --validate -q); then
echo "PURL string is valid"
else
echo "PURL string is not valid"
fi
```
Display information about provided PURL type (allowed components, repository,
examples, etc.):
```console
$ purl-tool --info rpm
```
Display all known PURL types:
```console
$ purl-tool --list
```
## vers-tool a CLI for URI::VersionRange module
Decode a "vers" string:
```console
$ vers-tool "vers:cpan/1.00|>=2.00|<5.00" | jq
```
Check if a version is contained within a range:
```console
$ vers-tool "vers:cpan/1.00|>=2.00|<5.00" --contains "2.20"
```
Humanize "vers":
```console
$ vers-tool "vers:cpan/1.00|>=2.00|<5.00" --human-readable
cpan
- equal 1.00
- greater than or equal 2.00
- less than 5.00
```
## Install
Using Makefile.PL:
To install `URI::PackageURL` distribution, run the following commands.
perl Makefile.PL
make
make test
make install
Using App::cpanminus:
cpanm URI::PackageURL
## Documentation
- `perldoc URI::PackageURL`
- `perldoc URI::VersionRange`
- https://metacpan.org/release/URI-PackageURL
- Specification: https://github.com/package-url/purl-spec
- TC54 - Software and system transparency: https://tc54.org
- ECMA-427 - Package-URL (PURL) specification: https://ecma-international.org/publications-and-standards/standards/ecma-427
## Copyright
- Copyright 2022-2026 © Giuseppe Di Terlizzi
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