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licenses.rb
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# frozen_string_literal: true require_relative '../text' class Gem::Licenses extend Gem::Text NONSTANDARD = 'Nonstandard'.freeze LICENSE_REF = 'LicenseRef-.+'.freeze # Software Package Data Exchange (SPDX) standard open-source software # license identifiers LICENSE_IDENTIFIERS = %w[ 0BSD AAL ADSL AFL-1.1 AFL-1.2 AFL-2.0 AFL-2.1 AFL-3.0 AGPL-1.0 AGPL-1.0-only AGPL-1.0-or-later AGPL-3.0 AGPL-3.0-only AGPL-3.0-or-later AMDPLPA AML AMPAS ANTLR-PD ANTLR-PD-fallback APAFML APL-1.0 APSL-1.0 APSL-1.1 APSL-1.2 APSL-2.0 Abstyles Adobe-2006 Adobe-Glyph Afmparse Aladdin Apache-1.0 Apache-1.1 Apache-2.0 Artistic-1.0 Artistic-1.0-Perl Artistic-1.0-cl8 Artistic-2.0 BSD-1-Clause BSD-2-Clause BSD-2-Clause-FreeBSD BSD-2-Clause-NetBSD BSD-2-Clause-Patent BSD-2-Clause-Views BSD-3-Clause BSD-3-Clause-Attribution BSD-3-Clause-Clear BSD-3-Clause-LBNL BSD-3-Clause-Modification BSD-3-Clause-No-Military-License BSD-3-Clause-No-Nuclear-License BSD-3-Clause-No-Nuclear-License-2014 BSD-3-Clause-No-Nuclear-Warranty BSD-3-Clause-Open-MPI BSD-4-Clause BSD-4-Clause-Shortened BSD-4-Clause-UC BSD-Protection BSD-Source-Code BSL-1.0 BUSL-1.1 Bahyph Barr Beerware BitTorrent-1.0 BitTorrent-1.1 BlueOak-1.0.0 Borceux C-UDA-1.0 CAL-1.0 CAL-1.0-Combined-Work-Exception CATOSL-1.1 CC-BY-1.0 CC-BY-2.0 CC-BY-2.5 CC-BY-3.0 CC-BY-3.0-AT CC-BY-3.0-US CC-BY-4.0 CC-BY-NC-1.0 CC-BY-NC-2.0 CC-BY-NC-2.5 CC-BY-NC-3.0 CC-BY-NC-4.0 CC-BY-NC-ND-1.0 CC-BY-NC-ND-2.0 CC-BY-NC-ND-2.5 CC-BY-NC-ND-3.0 CC-BY-NC-ND-3.0-IGO CC-BY-NC-ND-4.0 CC-BY-NC-SA-1.0 CC-BY-NC-SA-2.0 CC-BY-NC-SA-2.5 CC-BY-NC-SA-3.0 CC-BY-NC-SA-4.0 CC-BY-ND-1.0 CC-BY-ND-2.0 CC-BY-ND-2.5 CC-BY-ND-3.0 CC-BY-ND-4.0 CC-BY-SA-1.0 CC-BY-SA-2.0 CC-BY-SA-2.0-UK CC-BY-SA-2.1-JP CC-BY-SA-2.5 CC-BY-SA-3.0 CC-BY-SA-3.0-AT CC-BY-SA-4.0 CC-PDDC CC0-1.0 CDDL-1.0 CDDL-1.1 CDL-1.0 CDLA-Permissive-1.0 CDLA-Sharing-1.0 CECILL-1.0 CECILL-1.1 CECILL-2.0 CECILL-2.1 CECILL-B CECILL-C CERN-OHL-1.1 CERN-OHL-1.2 CERN-OHL-P-2.0 CERN-OHL-S-2.0 CERN-OHL-W-2.0 CNRI-Jython CNRI-Python CNRI-Python-GPL-Compatible CPAL-1.0 CPL-1.0 CPOL-1.02 CUA-OPL-1.0 Caldera ClArtistic Condor-1.1 Crossword CrystalStacker Cube D-FSL-1.0 DOC DRL-1.0 DSDP Dotseqn ECL-1.0 ECL-2.0 EFL-1.0 EFL-2.0 EPICS EPL-1.0 EPL-2.0 EUDatagrid EUPL-1.0 EUPL-1.1 EUPL-1.2 Entessa ErlPL-1.1 Eurosym FSFAP FSFUL FSFULLR FTL Fair Frameworx-1.0 FreeBSD-DOC FreeImage GD GFDL-1.1 GFDL-1.1-invariants-only GFDL-1.1-invariants-or-later GFDL-1.1-no-invariants-only GFDL-1.1-no-invariants-or-later GFDL-1.1-only GFDL-1.1-or-later GFDL-1.2 GFDL-1.2-invariants-only GFDL-1.2-invariants-or-later GFDL-1.2-no-invariants-only GFDL-1.2-no-invariants-or-later GFDL-1.2-only GFDL-1.2-or-later GFDL-1.3 GFDL-1.3-invariants-only GFDL-1.3-invariants-or-later GFDL-1.3-no-invariants-only GFDL-1.3-no-invariants-or-later GFDL-1.3-only GFDL-1.3-or-later GL2PS GLWTPL GPL-1.0 GPL-1.0+ GPL-1.0-only GPL-1.0-or-later GPL-2.0 GPL-2.0+ GPL-2.0-only GPL-2.0-or-later GPL-2.0-with-GCC-exception GPL-2.0-with-autoconf-exception GPL-2.0-with-bison-exception GPL-2.0-with-classpath-exception GPL-2.0-with-font-exception GPL-3.0 GPL-3.0+ GPL-3.0-only GPL-3.0-or-later GPL-3.0-with-GCC-exception GPL-3.0-with-autoconf-exception Giftware Glide Glulxe HPND HPND-sell-variant HTMLTIDY HaskellReport Hippocratic-2.1 IBM-pibs ICU IJG IPA IPL-1.0 ISC ImageMagick Imlib2 Info-ZIP Intel Intel-ACPI Interbase-1.0 JPNIC JSON JasPer-2.0 LAL-1.2 LAL-1.3 LGPL-2.0 LGPL-2.0+ LGPL-2.0-only LGPL-2.0-or-later LGPL-2.1 LGPL-2.1+ LGPL-2.1-only LGPL-2.1-or-later LGPL-3.0 LGPL-3.0+ LGPL-3.0-only LGPL-3.0-or-later LGPLLR LPL-1.0 LPL-1.02 LPPL-1.0 LPPL-1.1 LPPL-1.2 LPPL-1.3a LPPL-1.3c Latex2e Leptonica LiLiQ-P-1.1 LiLiQ-R-1.1 LiLiQ-Rplus-1.1 Libpng Linux-OpenIB MIT MIT-0 MIT-CMU MIT-Modern-Variant MIT-advertising MIT-enna MIT-feh MIT-open-group MITNFA MPL-1.0 MPL-1.1 MPL-2.0 MPL-2.0-no-copyleft-exception MS-PL MS-RL MTLL MakeIndex MirOS Motosoto MulanPSL-1.0 MulanPSL-2.0 Multics Mup NAIST-2003 NASA-1.3 NBPL-1.0 NCGL-UK-2.0 NCSA NGPL NIST-PD NIST-PD-fallback NLOD-1.0 NLPL NOSL NPL-1.0 NPL-1.1 NPOSL-3.0 NRL NTP NTP-0 Naumen Net-SNMP NetCDF Newsletr Nokia Noweb Nunit O-UDA-1.0 OCCT-PL OCLC-2.0 ODC-By-1.0 ODbL-1.0 OFL-1.0 OFL-1.0-RFN OFL-1.0-no-RFN OFL-1.1 OFL-1.1-RFN OFL-1.1-no-RFN OGC-1.0 OGDL-Taiwan-1.0 OGL-Canada-2.0 OGL-UK-1.0 OGL-UK-2.0 OGL-UK-3.0 OGTSL OLDAP-1.1 OLDAP-1.2 OLDAP-1.3 OLDAP-1.4 OLDAP-2.0 OLDAP-2.0.1 OLDAP-2.1 OLDAP-2.2 OLDAP-2.2.1 OLDAP-2.2.2 OLDAP-2.3 OLDAP-2.4 OLDAP-2.5 OLDAP-2.6 OLDAP-2.7 OLDAP-2.8 OML OPL-1.0 OSET-PL-2.1 OSL-1.0 OSL-1.1 OSL-2.0 OSL-2.1 OSL-3.0 OpenSSL PDDL-1.0 PHP-3.0 PHP-3.01 PSF-2.0 Parity-6.0.0 Parity-7.0.0 Plexus PolyForm-Noncommercial-1.0.0 PolyForm-Small-Business-1.0.0 PostgreSQL Python-2.0 QPL-1.0 Qhull RHeCos-1.1 RPL-1.1 RPL-1.5 RPSL-1.0 RSA-MD RSCPL Rdisc Ruby SAX-PD SCEA SGI-B-1.0 SGI-B-1.1 SGI-B-2.0 SHL-0.5 SHL-0.51 SISSL SISSL-1.2 SMLNJ SMPPL SNIA SPL-1.0 SSH-OpenSSH SSH-short SSPL-1.0 SWL Saxpath Sendmail Sendmail-8.23 SimPL-2.0 Sleepycat Spencer-86 Spencer-94 Spencer-99 StandardML-NJ SugarCRM-1.1.3 TAPR-OHL-1.0 TCL TCP-wrappers TMate TORQUE-1.1 TOSL TU-Berlin-1.0 TU-Berlin-2.0 UCL-1.0 UPL-1.0 Unicode-DFS-2015 Unicode-DFS-2016 Unicode-TOU Unlicense VOSTROM VSL-1.0 Vim W3C W3C-19980720 W3C-20150513 WTFPL Watcom-1.0 Wsuipa X11 XFree86-1.1 XSkat Xerox Xnet YPL-1.0 YPL-1.1 ZPL-1.1 ZPL-2.0 ZPL-2.1 Zed Zend-2.0 Zimbra-1.3 Zimbra-1.4 Zlib blessing bzip2-1.0.5 bzip2-1.0.6 copyleft-next-0.3.0 copyleft-next-0.3.1 curl diffmark dvipdfm eCos-2.0 eGenix etalab-2.0 gSOAP-1.3b gnuplot iMatix libpng-2.0 libselinux-1.0 libtiff mpich2 psfrag psutils wxWindows xinetd xpp zlib-acknowledgement ].freeze # exception identifiers EXCEPTION_IDENTIFIERS = %w[ 389-exception Autoconf-exception-2.0 Autoconf-exception-3.0 Bison-exception-2.2 Bootloader-exception CLISP-exception-2.0 Classpath-exception-2.0 DigiRule-FOSS-exception FLTK-exception Fawkes-Runtime-exception Font-exception-2.0 GCC-exception-2.0 GCC-exception-3.1 GPL-3.0-linking-exception GPL-3.0-linking-source-exception GPL-CC-1.0 LGPL-3.0-linking-exception LLVM-exception LZMA-exception Libtool-exception Linux-syscall-note Nokia-Qt-exception-1.1 OCCT-exception-1.0 OCaml-LGPL-linking-exception OpenJDK-assembly-exception-1.0 PS-or-PDF-font-exception-20170817 Qt-GPL-exception-1.0 Qt-LGPL-exception-1.1 Qwt-exception-1.0 SHL-2.0 SHL-2.1 Swift-exception Universal-FOSS-exception-1.0 WxWindows-exception-3.1 eCos-exception-2.0 freertos-exception-2.0 gnu-javamail-exception i2p-gpl-java-exception mif-exception openvpn-openssl-exception u-boot-exception-2.0 ].freeze REGEXP = %r{ \A (?: #{Regexp.union(LICENSE_IDENTIFIERS)} \+? (?:\s WITH \s #{Regexp.union(EXCEPTION_IDENTIFIERS)})? | #{NONSTANDARD} | #{LICENSE_REF} ) \Z }ox.freeze def self.match?(license) !REGEXP.match(license).nil? end def self.suggestions(license) by_distance = LICENSE_IDENTIFIERS.group_by do |identifier| levenshtein_distance(identifier, license) end lowest = by_distance.keys.min return unless lowest < license.size by_distance[lowest] end end