python-rpm-macros/macros.python-srpm
Miro Hrončok c746b25f28 Automatically word-wrap the description of extras subpackages
This only works for package and extra names less than 79 characters long.
I don't expect many actual packages to exceed this limit.
78 characters should be enough for everybody.

Why 78? 79 is the line-lenght limit from rpmlint.
And we need to put punctuation in there.
2021-02-08 12:04:29 +01:00

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# Define the Python interpreter paths in the SRPM macros so that
# - they can be used in Build/Requires
# - they can be used in non-Python packages where requiring pythonX-devel would
# be an overkill
# use the underscored macros to redefine the behavior of %%python3_version etc.
%__python2 /usr/bin/python2
%__python3 /usr/bin/python3
# use the non-underscored macros to refer to Python in spec, etc.
%python2 %__python2
%python3 %__python3
# See https://fedoraproject.org/wiki/Changes/PythonMacroError
%__python %{error:attempt to use unversioned python, define %%__python to %{__python2} or %{__python3} explicitly}
# Users can use %%python only if they redefined %%__python (e.g. to %%__python3)
%python %__python
# There are multiple Python 3 versions packaged, but only one can be the "main" version
# That means that it owns the "python3" namespace:
# - python3 package name
# - /usr/bin/python3 command
# - python3-foo packages are meant for this version
# Other versions of Python 3 always contain the version in the namespace:
# - python3.XX package name
# - /usr/bin/python3.XX command
# - python3.XX-foo packages (if allowed)
#
# Python spec files use the version defined here to determine defaults for the
# %%py_provides and %%python_provide macros, as well as for the "pythonname" generator that
# provides python3-foo for python3.XX-foo and vice versa for the default "main" version.
# E.g. in Fedora 33, python3.9-foo will provide python3-foo,
# python3-foo will provide python3.9-foo.
#
# There are two macros:
#
# This always contains the major.minor version (with dots), default for %%python3_version.
%__default_python3_version 3.9
#
# The pkgname version that determines the alternative provide name (e.g. python3.9-foo),
# set to the same as above, but historically hasn't included the dot.
# This is left intentionally a separate macro, in case the naming convention ever changes.
%__default_python3_pkgversion %__default_python3_version
# python3_pkgversion specifies the version of Python 3 in the distro. It can be
# a specific version (e.g. 34 in Fedora EPEL7)
%python3_pkgversion 3
# Set to /bin/true to avoid %ifdefs and %{? in specfiles
%__python3_other /bin/true
%py3_other_build /bin/true
%py3_other_install /bin/true
# === Macros for Build/Requires tags using Python dist tags ===
# - https://fedoraproject.org/wiki/Changes/Automatic_Provides_for_Python_RPM_Packages
# - These macros need to be in macros.python-srpm, because BuildRequires tags
# get rendered as runtime requires into the metadata of SRPMs.
# Converts Python dist name to a canonical format
%py_dist_name() %{lua:\
name = rpm.expand("%{?1:%{1}}");\
canonical = string.gsub(string.lower(name), "[^%w%[%]]+", "-");\
print(canonical);\
}
# Creates Python 2 dist tag(s) after converting names to canonical format
# Needs to first put all arguments into a list, because invoking a different
# macro (%py_dist_name) overwrites them
%py2_dist() %{lua:\
args = {}\
arg = 1\
while (true) do\
name = rpm.expand("%{?" .. arg .. ":%{" .. arg .. "}}");\
if (name == nil or name == '') then\
break\
end\
args[arg] = name\
arg = arg + 1\
end\
for arg, name in ipairs(args) do\
canonical = rpm.expand("%py_dist_name " .. name);\
print("python2dist(" .. canonical .. ") ");\
end\
}
# Creates Python 3 dist tag(s) after converting names to canonical format
# Needs to first put all arguments into a list, because invoking a different
# macro (%py_dist_name) overwrites them
%py3_dist() %{lua:\
python3_pkgversion = rpm.expand("%python3_pkgversion");\
args = {}\
arg = 1\
while (true) do\
name = rpm.expand("%{?" .. arg .. ":%{" .. arg .. "}}");\
if (name == nil or name == '') then\
break\
end\
args[arg] = name\
arg = arg + 1\
end\
for arg, name in ipairs(args) do\
canonical = rpm.expand("%py_dist_name " .. name);\
print("python" .. python3_pkgversion .. "dist(" .. canonical .. ") ");\
end\
}
# Macro to replace overly complicated references to PyPI source files.
# Expands to the pythonhosted URL for a package
# Accepts zero to three arguments:
# 1: The PyPI project name, defaulting to %srcname if it is defined, then
# %pypi_name if it is defined, then just %name.
# 2: The PYPI version, defaulting to %version with tildes stripped.
# 3: The file extension, defaulting to "tar.gz". (A period will be added
# automatically.)
# Requires %__pypi_url and %__pypi_default_extension to be defined.
%__pypi_url https://files.pythonhosted.org/packages/source/
%__pypi_default_extension tar.gz
%pypi_source() %{lua:
local src = rpm.expand('%1')
local ver = rpm.expand('%2')
local ext = rpm.expand('%3')
local url = rpm.expand('%__pypi_url')
\
-- If no first argument, try %srcname, then %pypi_name, then %name
-- Note that rpm leaves macros unchanged if they are not defined.
if src == '%1' then
src = rpm.expand('%srcname')
end
if src == '%srcname' then
src = rpm.expand('%pypi_name')
end
if src == '%pypi_name' then
src = rpm.expand('%name')
end
\
-- If no second argument, use %version
if ver == '%2' then
ver = rpm.expand('%version'):gsub('~', '')
end
\
-- If no third argument, use the preset default extension
if ext == '%3' then
ext = rpm.expand('%__pypi_default_extension')
end
\
local first = string.sub(src, 1, 1)
\
print(url .. first .. '/' .. src .. '/' .. src .. '-' .. ver .. '.' .. ext)
}
%py_provides() %{lua:
local python = require 'fedora.srpm.python'
local name = rpm.expand('%1')
if name == '%1' then
rpm.expand('%{error:%%py_provides requires at least 1 argument, the name to provide}')
end
local evr = rpm.expand('%2')
if evr == '%2' then
evr = rpm.expand('%{?epoch:%{epoch}:}%{version}-%{release}')
end
print('Provides: ' .. name .. ' = ' .. evr .. '\\n')
local provides = python.python_altprovides(name, evr)
for i, provide in ipairs(provides) do
print('Provides: ' .. provide .. '\\n')
end
}
%python_extras_subpkg(n:i:f:F) %{expand:%{lua:
local option_n = '-n (name of the base package)'
local option_i = '-i (buildroot path to metadata)'
local option_f = '-f (builddir path to a filelist)'
local option_F = '-F (skip %%files section)'
local value_n = rpm.expand('%{-n*}')
local value_i = rpm.expand('%{-i*}')
local value_f = rpm.expand('%{-f*}')
local value_F = rpm.expand('%{-F}')
local args = rpm.expand('%{*}')
if value_n == '' then
rpm.expand('%{error:%%%0: missing option ' .. option_n .. '}')
end
if value_i == '' and value_f == '' and value_F == '' then
rpm.expand('%{error:%%%0: missing option ' .. option_i .. ' or ' .. option_f .. ' or ' .. option_F .. '}')
end
if value_i ~= '' and value_f ~= '' then
rpm.expand('%{error:%%%0: simultaneous ' .. option_i .. ' and ' .. option_f .. ' options are not possible}')
end
if value_i ~= '' and value_F ~= '' then
rpm.expand('%{error:%%%0: simultaneous ' .. option_i .. ' and ' .. option_F .. ' options are not possible}')
end
if value_f ~= '' and value_F ~= '' then
rpm.expand('%{error:%%%0: simultaneous ' .. option_f .. ' and ' .. option_F .. ' options are not possible}')
end
if args == '' then
rpm.expand('%{error:%%%0 requires at least one argument with "extras" name}')
end
local requires = 'Requires: ' .. value_n .. ' = %{?epoch:%{epoch}:}%{version}-%{release}'
for extras in args:gmatch('%w+') do
local rpmname = value_n .. '+' .. extras
local pkgdef = '%package -n ' .. rpmname
local summary = 'Summary: Metapackage for ' .. value_n .. ': ' .. extras .. ' extras'
local description = '%description -n ' .. rpmname .. '\\\n'
local current_line = 'This is a metapackage bringing in'
for _, word in ipairs({extras, 'extras', 'requires', 'for', value_n .. '.'}) do
local line = current_line .. ' ' .. word
if line:len() > 79 then
description = description .. current_line .. '\\\n'
current_line = word
else
current_line = line
end
end
description = description .. current_line .. '\\\n' ..
'It contains no code, just makes sure the dependencies are installed.\\\n'
local files = ''
if value_i ~= '' then
files = '%files -n ' .. rpmname .. '\\\n' .. '%ghost ' .. value_i
elseif value_f ~= '' then
files = '%files -n ' .. rpmname .. ' -f ' .. value_f
end
for i, line in ipairs({pkgdef, summary, requires, description, files, ''}) do
print(line .. '\\\n')
end
end
}}