85 lines
2.2 KiB
Python
Executable File
85 lines
2.2 KiB
Python
Executable File
#!/usr/bin/env python3
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'''
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Tiny dumb script that generates virtual bundled `Provides` from a repo that
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uses go modules and vendoring.
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'''
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import sys
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import re
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def main():
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repos = get_repos_from_go_mod()
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print_provides_from_modules_txt(repos)
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def get_repos_from_go_mod():
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repos = {}
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in_reqs = False
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for line in open('go.mod'):
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line = line.strip()
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if in_reqs and line.startswith(')'):
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break
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if not in_reqs:
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if line.startswith('require ('):
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in_reqs = True
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continue
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req = line.split()
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repo = req[0]
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tag = req[1]
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repos[repo] = go_mod_tag_to_rpm_provides_version(tag)
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return repos
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def go_mod_tag_to_rpm_provides_version(tag):
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# go.mod tags are either exact git tags, or may be "pseudo-versions". We
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# want to convert these tags to something resembling a version string that
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# RPM won't fail on. For more information, see
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# https://golang.org/cmd/go/#hdr-Pseudo_versions and following sections.
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# trim off any +incompatible
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if tag.endswith('+incompatible'):
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tag = tag[:-len('+incompatible')]
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# git tags are normally of the form v$VERSION
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if tag.startswith('v'):
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tag = tag[1:]
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# is this a pseudo-version? e.g. v0.0.0-20181031085051-9002847aa142
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m = re.match("(.*)-([0-9.]+)-([a-f0-9]{12})", tag)
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if m:
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# rpm doesn't like multiple dashes in the version, so just merge the
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# timestamp and the commit checksum into the "release" field
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tag = f"{m.group(1)}-{m.group(2)}.git{m.group(3)}"
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return tag
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def print_provides_from_modules_txt(repos):
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for line in open('vendor/modules.txt'):
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if line.startswith('#'):
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continue
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gopkg = line.strip()
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repo = lookup_repo_for_pkg(repos, gopkg)
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if not repo:
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# must be a pkg for tests only; ignore
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continue
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tag = repos[repo]
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print(f"Provides: bundled(golang({gopkg})) = {tag}")
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def lookup_repo_for_pkg(repos, gopkg):
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for repo in repos:
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if gopkg.startswith(repo):
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return repo
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if __name__ == '__main__':
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sys.exit(main())
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