#!/usr/bin/python3

import argparse
import datetime
import json
import os
import re
import subprocess
import sys

# Only do basic checks on these.
OTHER_REPOS = [ 'mender-api-gateway-docker', 'integration' ]
# We don't currently care about these.
IGNORE_REPOS = [ ]

# The directories to look in.
DIRS = [os.path.join(os.path.dirname(sys.argv[0]), "../..")]

# Candidates for license files.
LICENSE_CANDIDATES = [ "LICENSE", "LICENCE", "LICENSE.txt", "COPYING" ]

# A dictionary of the licenses we have collected, key is module, value is text.
LICENSES = {}

# A dictionary of license files we have covered.
LICENSE_FILES_COVERED = {}

CALLED_FROM_RELEASE_TOOL = False


#-------------------------------------------------------------------------------
# Used as reference in the below variable.
MIT_LICENSE = """MIT License

Copyright (c) %d %s

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE."""

# Some licenses we know about. We use these when the authors have not provided
# the full license themselves.
KNOWN_LICENSES = {
    "BSD":
"""Copyright (c) The Regents of the University of California.
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors
   may be used to endorse or promote products derived from this software
   without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.""",

    "BSD-2-Clause":
"""The FreeBSD Copyright

Copyright 1992-2010 The FreeBSD Project. All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE FREEBSD PROJECT ``AS IS`` AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FREEBSD PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

The views and conclusions contained in the software and documentation are those of the authors and should not be interpreted as representing official policies, either expressed or implied, of the FreeBSD Project.""",

    "BSD-3-Clause":
"""Copyright (c) %d, %s
All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
Neither the name of the <ORGANIZATION> nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.""",

    "BSD-4-Clause":
"""Copyright (c) %d, %s
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the distribution.
3. All advertising materials mentioning features or use of this software
   must display the following acknowledgement:
   This product includes software developed by the <organization>.
4. Neither the name of the <organization> nor the
   names of its contributors may be used to endorse or promote products
   derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY <COPYRIGHT HOLDER> ``AS IS`` AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.""",

    "(GPL-2.0 OR MIT)": MIT_LICENSE,

    "ISC":
"""ISC License:

Copyright &#169; 2004-2010 by Internet Systems Consortium, Inc. ("ISC")
Copyright &#169; 1995-2003 by Internet Software Consortium

Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.""",

    'MIT': MIT_LICENSE,

    '(MIT OR Apache-2.0)': MIT_LICENSE,

    "MIT/X11":
"""The MIT/X11 License

Copyright (c) %d %s

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.""",

    "Public Domain":
"""This software is in the public domain.""",

    '(WTFPL OR MIT)': MIT_LICENSE,

    "Apache-2.0":
"""Apache-2.0 license

Copyright (c) %d %s

                               Apache License
                           Version 2.0, January 2004
                        http://www.apache.org/licenses/

   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

   1. Definitions.

      "License" shall mean the terms and conditions for use, reproduction,
      and distribution as defined by Sections 1 through 9 of this document.

      "Licensor" shall mean the copyright owner or entity authorized by
      the copyright owner that is granting the License.

      "Legal Entity" shall mean the union of the acting entity and all
      other entities that control, are controlled by, or are under common
      control with that entity. For the purposes of this definition,
      "control" means (i) the power, direct or indirect, to cause the
      direction or management of such entity, whether by contract or
      otherwise, or (ii) ownership of fifty percent (50%%) or more of the
      outstanding shares, or (iii) beneficial ownership of such entity.

      "You" (or "Your") shall mean an individual or Legal Entity
      exercising permissions granted by this License.

      "Source" form shall mean the preferred form for making modifications,
      including but not limited to software source code, documentation
      source, and configuration files.

      "Object" form shall mean any form resulting from mechanical
      transformation or translation of a Source form, including but
      not limited to compiled object code, generated documentation,
      and conversions to other media types.

      "Work" shall mean the work of authorship, whether in Source or
      Object form, made available under the License, as indicated by a
      copyright notice that is included in or attached to the work
      (an example is provided in the Appendix below).

      "Derivative Works" shall mean any work, whether in Source or Object
      form, that is based on (or derived from) the Work and for which the
      editorial revisions, annotations, elaborations, or other modifications
      represent, as a whole, an original work of authorship. For the purposes
      of this License, Derivative Works shall not include works that remain
      separable from, or merely link (or bind by name) to the interfaces of,
      to that Work or Derivative Works thereof, that is intentionally
      submitted to Licensor for inclusion in the Work by the copyright owner
      or by an individual or Legal Entity authorized to submit on behalf of
      the copyright owner. For the purposes of this definition, "submitted"
      means any form of electronic, verbal, or written communication sent
      to the Licensor or its representatives, including but not limited to
      communication on electronic mailing lists, source code control systems,
      and issue tracking systems that are managed by, or on behalf of, the
      Licensor for the purpose of discussing and improving the Work, but
      excluding communication that is conspicuously marked or otherwise
      designated in writing by the copyright owner as "Not a Contribution."

      "Contributor" shall mean Licensor and any individual or Legal Entity
      on behalf of whom a Contribution has been received by Licensor and
      subsequently incorporated within the Work.

   2. Grant of Copyright License. Subject to the terms and conditions of
      this License, each Contributor hereby grants to You a perpetual,
      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
      copyright license to reproduce, prepare Derivative Works of,
      publicly display, publicly perform, sublicense, and distribute the
      Work and such Derivative Works in Source or Object form.

   3. Grant of Patent License. Subject to the terms and conditions of
      this License, each Contributor hereby grants to You a perpetual,
      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
      (except as stated in this section) patent license to make, have made,
      use, offer to sell, sell, import, and otherwise transfer the Work,
      where such license applies only to those patent claims licensable
      by such Contributor that are necessarily infringed by their
      Contribution(s) alone or by combination of their Contribution(s)
      with the Work to which such Contribution(s) was submitted. If You
      institute patent litigation against any entity (including a
      cross-claim or counterclaim in a lawsuit) alleging that the Work
      or a Contribution incorporated within the Work constitutes direct
      or contributory patent infringement, then any patent licenses
      granted to You under this License for that Work shall terminate
      as of the date such litigation is filed.

   4. Redistribution. You may reproduce and distribute copies of the
      Work or Derivative Works thereof in any medium, with or without
      modifications, and in Source or Object form, provided that You
      meet the following conditions:

      (a) You must give any other recipients of the Work or
          Derivative Works a copy of this License; and

      (b) You must cause any modified files to carry prominent notices
          stating that You changed the files; and

      (c) You must retain, in the Source form of any Derivative Works
          that You distribute, all copyright, patent, trademark, and
          attribution notices from the Source form of the Work,
          excluding those notices that do not pertain to any part of
          the Derivative Works; and

      (d) If the Work includes a "NOTICE" text file as part of its
          distribution, then any Derivative Works that You distribute must
          include a readable copy of the attribution notices contained
          within such NOTICE file, excluding those notices that do not
          pertain to any part of the Derivative Works, in at least one
          of the following places: within a NOTICE text file distributed
          as part of the Derivative Works; within the Source form or
          documentation, if provided along with the Derivative Works; or,
          within a display generated by the Derivative Works, if and
          wherever such third-party notices normally appear. The contents
          of the NOTICE file are for informational purposes only and
          do not modify the License. You may add Your own attribution
          notices within Derivative Works that You distribute, alongside
          or as an addendum to the NOTICE text from the Work, provided
          that such additional attribution notices cannot be construed
          as modifying the License.

      You may add Your own copyright statement to Your modifications and
      may provide additional or different license terms and conditions
      for use, reproduction, or distribution of Your modifications, or
      for any such Derivative Works as a whole, provided Your use,
      reproduction, and distribution of the Work otherwise complies with
      the conditions stated in this License.

   5. Submission of Contributions. Unless You explicitly state otherwise,
      any Contribution intentionally submitted for inclusion in the Work
      by You to the Licensor shall be under the terms and conditions of
      this License, without any additional terms or conditions.
      Notwithstanding the above, nothing herein shall supersede or modify
      the terms of any separate license agreement you may have executed
      with Licensor regarding such Contributions.

   6. Trademarks. This License does not grant permission to use the trade
      names, trademarks, service marks, or product names of the Licensor,
      except as required for reasonable and customary use in describing the
      origin of the Work and reproducing the content of the NOTICE file.

   7. Disclaimer of Warranty. Unless required by applicable law or
      agreed to in writing, Licensor provides the Work (and each
      Contributor provides its Contributions) on an "AS IS" BASIS,
      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
      implied, including, without limitation, any warranties or conditions
      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
      PARTICULAR PURPOSE. You are solely responsible for determining the
      appropriateness of using or redistributing the Work and assume any
      risks associated with Your exercise of permissions under this License.

   8. Limitation of Liability. In no event and under no legal theory,
      whether in tort (including negligence), contract, or otherwise,
      unless required by applicable law (such as deliberate and grossly
      negligent acts) or agreed to in writing, shall any Contributor be
      liable to You for damages, including any direct, indirect, special,
      incidental, or consequential damages of any character arising as a
      result of this License or out of the use or inability to use the
      Work (including but not limited to damages for loss of goodwill,
      work stoppage, computer failure or malfunction, or any and all
      other commercial damages or losses), even if such Contributor
      has been advised of the possibility of such damages.

   9. Accepting Warranty or Additional Liability. While redistributing
      the Work or Derivative Works thereof, You may choose to offer,
      and charge a fee for, acceptance of support, warranty, indemnity,
      or other liability obligations and/or rights consistent with this
      License. However, in accepting such obligations, You may act only
      on Your own behalf and on Your sole responsibility, not on behalf
      of any other Contributor, and only if You agree to indemnify,
      defend, and hold each Contributor harmless for any liability
      incurred by, or claims asserted against, such Contributor by reason
      of your accepting any such warranty or additional liability.""",

}
#-------------------------------------------------------------------------------


parser = argparse.ArgumentParser(description='Generate a license overview for Mender repositories.')
parser.add_argument('--dir', dest='DIRS', action='append',
                    help='Directories to look for repositories. Later directories take precedence.')
parser.add_argument('--called-from-release-tool', dest='CALLED_FROM_RELEASE_TOOL', action='store_true',
                    help=argparse.SUPPRESS)
parsed = parser.parse_args()

if parsed.DIRS is not None:
    DIRS += parsed.DIRS
# In order for latest directories to be searched first.
DIRS.reverse()

if parsed.CALLED_FROM_RELEASE_TOOL:
    CALLED_FROM_RELEASE_TOOL = True


def select_license_text(license, author):
    if KNOWN_LICENSES[license].find('%s') == -1:
        return KNOWN_LICENSES[license]
    else:
        return KNOWN_LICENSES[license] % (datetime.date.today().year, author)


def find_repo(repo):
    loc = None
    for dir in DIRS:
        if os.path.exists(os.path.join(dir, repo)):
            loc = os.path.join(dir, repo)

    if loc is None:
        raise Exception(("Could not find repository %s in any of the locations: %s. " +
                         "Use --dir=<dir> to add directories to the search path.")
                        % (repo, ", ".join(DIRS)))

    return loc

def add_file_to_licenses(component, license_file):
    LICENSE_FILES_COVERED[license_file] = True

    license_fd = open(license_file)
    content = license_fd.read()
    add_to_licenses(component, content)

def add_to_licenses(component, content):
    # Get rid of '```' markers that mess up the doc rendering.
    content = re.sub("^```", "``", content, flags=re.MULTILINE)

    existing = LICENSES.get(component)
    if existing is None:
        LICENSES[component] = [content]
    elif content not in existing:
        LICENSES[component].append(content)

def process_chksum_file(file):
    fd = open(file)

    line_count = 0

    for line in fd:
        line = line.strip()
        line_count += 1

        if line[0:1] == '#':
            continue

        entries = line.split()
        if len(entries) == 0:
            continue
        if len(entries) != 2:
            raise Exception("Malformed line in %s:%d: %s" % (file, line_count, line))

        license_file = entries[1]
        component = os.path.dirname(entries[1])

        # Ignore the license in this directory, which is our own license.
        if license_file.find('/') == -1:
            LICENSE_FILES_COVERED[os.path.join(os.path.dirname(file), license_file)] = True
            continue

        if component[0:7] == "vendor/":
            component = component[7:]

        if component.find("/vendor/") >= 0:
            # We assume that sub dependencies are covered by the top license.
            LICENSE_FILES_COVERED[os.path.join(os.path.dirname(file), license_file)] = True
            continue

        add_file_to_licenses(component, os.path.join(os.path.dirname(file), license_file))

# Go style licenses.
def do_go_repo(repopath):
    lic_chksums = os.path.join(repopath, "LIC_FILES_CHKSUM.sha256")
    if not os.path.exists(lic_chksums):
        raise Exception("No license checksums found at %s" % lic_chksums)

    process_chksum_file(lic_chksums)

    verify_no_license_leftovers(repopath)

def check_base_license(repopath):
    # Use the license in the integration repository (this repository) as a basis
    with open(os.path.join(os.path.dirname(sys.argv[0]), "..", "LICENSE")) as fd:
        expected_lines = fd.read().strip().split('\n')
        expected_top = expected_lines[0]
        # Lose first line, which depends on copyright year.
        del expected_lines[0]

    with open(os.path.join(repopath, "LICENSE")) as fd:
        license_lines = fd.read().strip().split('\n')
        license_top = license_lines[0]
        # Lose first line, which depends on copyright year.
        del license_lines[0]

    if license_lines != expected_lines:
        # "All Rights Reserved" is also accepted for Enterprise licenses.
        if license_lines[1] != "All Rights Reserved":
            assert False, "%s doesn't have correct license text" % repopath

    # Now compare top lines, but omitting copyright year.
    expected_top_altered = re.sub("2[01][0-9][0-9]", "", expected_top)
    license_top_altered = re.sub("2[01][0-9][0-9]", "", license_top)
    assert license_top_altered == expected_top_altered, "%s != %s" % (license_top_altered, expected_top_altered)

def do_repos():
    release_tool = os.path.join(os.path.dirname(sys.argv[0]), "release_tool.py")
    output = subprocess.check_output([release_tool, "-l"])

    for repo in output.decode().strip().split('\n'):
        repopath = find_repo(repo)
        for path, dirs, files in os.walk(repopath):
            if repo in IGNORE_REPOS:
                break

            check_base_license(repopath)
            if any([file.endswith(".go") for file in files]):
                do_go_repo(repopath)
                break
            elif "gulpfile.js" in files:
                if not CALLED_FROM_RELEASE_TOOL:
                    sys.stderr.write("""GUI must be fetched manually when not using release tool:
  docker cp GUI_CONTAINER:/var/www/mender-gui/dist/disclaimer.txt .
""")
                # Ignore GUI, since it will be fetched from the above file.
                break
            elif repo in OTHER_REPOS:
                # The check above is enough.
                break
        else:
            raise Exception("Unrecognized repository type: %s" % repopath)

def verify_no_license_leftovers(location):
    for path, dirs, files in os.walk(location):
        for file in files:
            if file in LICENSE_CANDIDATES and not LICENSE_FILES_COVERED.get(os.path.join(path, file)):
                raise Exception("Found unhandled license in %s" % os.path.join(path, file))

do_repos()

def case_insensitive_item(item):
    return item[0].lower()

# Sort according to component (case insensitive).
sorted_licenses = sorted(LICENSES.items(), key=case_insensitive_item)

separator = "\n\n--------------------------------------------------------------------------------\n\n"
component_texts = []
for component in sorted_licenses:
    text = separator.join(["%s:\n\n%s" % (component[0], license) for license in component[1]])
    component_texts.append(text)

print("Third party licenses used in Mender.")
print(separator)
print(separator.join(component_texts))

if not CALLED_FROM_RELEASE_TOOL:
    sys.stderr.write("WARNING: It is recommended to call this tool from release_tool.py, to get the versions right.\n")
