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Editing: python.lua
-- Convenience Lua functions that can be used within Python srpm/rpm macros -- Determine alternate names provided from the given name. -- Used in pythonname provides generator, python_provide and py_provides. -- If only_3_to_3_X is false/nil/unused there are 2 rules: -- python3-foo -> python-foo, python3.X-foo -- python3.X-foo -> python-foo, python3-foo -- If only_3_to_3_X is true there is only 1 rule: -- python3-foo -> python3X-foo -- There is no python-foo -> rule, python-foo packages are version agnostic. -- Returns a table/array with strings. Empty when no rule matched. local function python_altnames(name, only_3_to_3_X) local xy if only_3_to_3_X then -- Here we hardcode the xy prefix we want to obsolete to "39", because: -- 1. Python 3.9 will remain the main Python version in RHEL 9 -- 2. python39 in RHEL 8 is still using the dotless naming (as opposed to -- python3.9) xy = "39" else xy = rpm.expand('%{__default_python3_pkgversion}') end local altnames = {} local replaced -- NB: dash needs to be escaped! if name:match('^python3%-') then local prefixes = only_3_to_3_X and {} or {'python-'} for i, prefix in ipairs({'python' .. xy .. '-', table.unpack(prefixes)}) do replaced = name:gsub('^python3%-', prefix) table.insert(altnames, replaced) end elseif name:match('^python' .. xy .. '%-') and not only_3_to_3_X then for i, prefix in ipairs({'python-', 'python3-'}) do replaced = name:gsub('^python' .. xy .. '%-', prefix) table.insert(altnames, replaced) end end return altnames end local function __python_alttags(name, evr, tag_type) -- for the "provides" tag_type we want also unversioned provides local only_3_to_3_X = tag_type ~= "provides" local operator = tag_type == "provides" and ' = ' or ' < ' -- global cache that tells what package NEVRs were already processed for the -- given tag type if __python_alttags_beenthere == nil then __python_alttags_beenthere = {} end if __python_alttags_beenthere[tag_type] == nil then __python_alttags_beenthere[tag_type] = {} end __python_alttags_beenthere[tag_type][name .. ' ' .. evr] = true local alttags = {} for i, altname in ipairs(python_altnames(name, only_3_to_3_X)) do table.insert(alttags, altname .. operator .. evr) end return alttags end -- For any given name and epoch-version-release, return provides except self. -- Uses python_altnames under the hood -- Returns a table/array with strings. local function python_altprovides(name, evr) return __python_alttags(name, evr, "provides") end -- For any given name and epoch-version-release, return versioned obsoletes except self. -- Uses python_altnames under the hood -- Returns a table/array with strings. local function python_altobsoletes(name, evr) return __python_alttags(name, evr, "obsoletes") end local function __python_alttags_once(name, evr, tag_type) -- global cache that tells what provides were already processed if __python_alttags_beenthere == nil or __python_alttags_beenthere[tag_type] == nil or __python_alttags_beenthere[tag_type][name .. ' ' .. evr] == nil then return __python_alttags(name, evr, tag_type) else return nil end end -- Like python_altprovides but only return something once. -- For each argument can only be used once, returns nil otherwise. -- Previous usage of python_altprovides counts as well. local function python_altprovides_once(name, evr) return __python_alttags_once(name, evr, "provides") end -- Like python_altobsoletes but only return something once. -- For each argument can only be used once, returns nil otherwise. -- Previous usage of python_altobsoletes counts as well. local function python_altobsoletes_once(name, evr) return __python_alttags_once(name, evr, "obsoletes") end return { python_altnames = python_altnames, python_altprovides = python_altprovides, python_altobsoletes = python_altobsoletes, python_altprovides_once = python_altprovides_once, python_altobsoletes_once = python_altobsoletes_once, }
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