mirror of
https://github.com/Poltern/lfs-ru.git
synced 2024-10-18 20:00:21 +03:00
299 lines
8.3 KiB
Python
299 lines
8.3 KiB
Python
#!/usr/bin/env python3
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# SPDX-License-Identifier: MIT
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# Copyright 2023 The LFS Editors
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# Stupid script to render "mconf"-style kernel configuration
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# Usage: kernel-config.py [path to kernel tree] [needed config].toml
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# The toml file should be like:
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# for bool and tristate:
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# EXT4="*"
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# DRM="*M"
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# EXPERT=" "
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# DRM_I915="*M"
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# for choice:
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# HIGHMEM64G="X"
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# an entry with comment:
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# DRM_I915 = { value = " *M", comment = "for i915, crocus, or iris" }
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choice_bit = 1 << 30
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ind0 = 0
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ind1 = 0
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menu_id = 1
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stack = []
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if_stack = []
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expand_var_mp = { 'SRCARCH': 'x86' }
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main_dep = {}
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def expand_var(s):
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for k in expand_var_mp:
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s = s.replace('$(' + k + ')', expand_var_mp[k])
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return s
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def pop_stack(cond):
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global ind0, ind1, stack
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assert(cond(stack[-1][0]))
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s, i0, i1, _ = stack[-1]
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stack = stack[:-1]
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ind0 -= i0
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ind1 -= i1
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def pop_stack_while(cond):
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while stack and cond(stack[-1][0]):
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pop_stack(cond)
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def cur_menu():
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global stack
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return stack[-1][3] if stack else 0
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def cur_if():
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global if_stack
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return if_stack[-1][:] if if_stack else []
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def clean_dep(d):
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d = d.strip()
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if d.endswith('=y') or d.endswith('=M'):
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d = d[:-2]
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elif d.endswith(' != ""'):
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d = d[:-6]
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return d
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def parse_config(buf):
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global ind0, ind1, stack, menu_id
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is_choice = buf[0].strip() == 'choice'
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is_menu = buf[0].startswith('menu') or is_choice
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is_nonconfig_menu = buf[0].startswith('menu ') or is_choice
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key = None if is_nonconfig_menu else buf[0].split()[1].strip()
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title = buf[0][len('menu '):] if is_nonconfig_menu else None
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deps = ['menu'] + cur_if()
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klass = None
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for line in buf[1:]:
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line = line.strip()
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if line.startswith('depends on '):
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new_deps = line[len('depends on '):].split('&&')
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deps += [clean_dep(x) for x in new_deps]
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elif line.startswith('prompt'):
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title = line[len('prompt '):]
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else:
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for prefix in ['tristate', 'bool', 'string']:
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if line.startswith(prefix + ' '):
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title = line[len(prefix) + 1:]
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klass = prefix
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elif line == prefix:
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klass = prefix
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elif line.startswith('def_' + prefix + ' '):
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klass = prefix
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else:
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continue
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if '"' in line:
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tail = line[line.rfind('"') + 1:].strip()
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if tail[:3] == 'if ':
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deps += [clean_dep(x) for x in tail[3:].split('&&')]
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pop_stack_while(lambda x: x not in deps)
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menu_id += is_menu
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internal_key = key or menu_id
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if stack:
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fa = stack[-1][0]
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if fa == 'menu':
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fa = cur_menu() & ~choice_bit
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main_dep[internal_key] = fa
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val = known_config.get(key)
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comment = None
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forced = None
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if type(val) == dict:
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comment = val.get('comment')
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forced = val.get('forced')
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val = val['value']
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klass = klass or 'string'
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if title:
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title = title.strip().lstrip('"')
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title = title[:title.find('"')]
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if not val:
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pass
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elif klass == 'string':
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val = '(' + val + ')'
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else:
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assert((val == 'X') == bool(cur_menu() & choice_bit))
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if (val == 'X'):
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val = '(X)'
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else:
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val = list(val)
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val.sort()
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for c in val:
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if c not in 'M* ' or (c == 'M' and klass != 'tristate'):
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raise Exception('unknown setting %s for %s' % (c, key))
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bracket = None
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if klass == 'tristate' and forced != '*' :
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bracket = '{}' if forced else '<>'
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else:
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bracket = '--' if forced else '[]'
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val = bracket[0] + '/'.join(val) + bracket[1]
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arrow = ' --->' if is_menu else ''
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r = [ind0, val, ind1, title, arrow, internal_key, cur_menu(), comment]
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# Don't indent for untitled (internal) entries
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x = 2 if title else 0
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key = key or 'menu'
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menu = (menu_id if is_menu else cur_menu())
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menu |= choice_bit if is_choice else 0
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stack_ent = (key, 2, 0, menu) if is_menu else (key, 0, x, menu)
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ind0 += stack_ent[1]
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ind1 += stack_ent[2]
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stack += [stack_ent]
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return r
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def load_kconfig(file):
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global ind0, ind1, stack, path, menu_id, if_stack
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r = []
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config_buf = []
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with open(path + file) as f:
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for line in f:
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if config_buf:
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if not (line.startswith('\t') or line.startswith(' ')):
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r += [parse_config(config_buf)]
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config_buf = []
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else:
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config_buf += [line]
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continue
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if line.startswith('source') or line.startswith('\tsource'):
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sub = expand_var(line.strip().split()[1].strip('"'))
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r += load_kconfig(sub)
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elif line.startswith('config') or line.startswith('menu'):
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config_buf = [line]
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elif line.startswith('choice'):
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config_buf = [line]
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elif line.startswith('endmenu') or line.startswith('endchoice'):
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pop_stack_while(lambda x: x != 'menu')
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pop_stack(lambda x: x == 'menu')
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elif line.startswith('if '):
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line = line[3:]
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top = cur_if()
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top += [x.strip() for x in line.split("&&")]
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if_stack += [top]
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elif line.startswith('endif'):
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if_stack = if_stack[:-1]
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return r
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known_config = {}
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def escape(x):
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return x.replace('<', '<').replace('>', '>')
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from sys import argv
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import tomllib
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path = argv[1]
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if path[-1] != '/':
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path += '/'
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with open(argv[2], 'rb') as f:
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known_config = tomllib.load(f)
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r = load_kconfig('Kconfig')
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# Refcount all menus
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index_ikey = {}
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for i in reversed(range(len(r))):
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index_ikey[r[i][5]] = i
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for i in reversed(range(len(r))):
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if r[i][1] != None:
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key = r[i][5]
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fa = main_dep.get(key)
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if not fa:
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continue
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j = index_ikey[fa]
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if type(fa) == int or not r[j][3]:
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# The main dependency is a menu or untitled magic entry,
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# just mark it used
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r[j][1] = ''
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if r[j][1] is None:
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raise Exception('[%s] needs unselected [%s]' % (key, fa))
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r = [i for i in r if i[1] != None and i[3]]
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# Now we are going to pretty-print r
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## Calculate the maximum value length for each menu
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max_val_len = {}
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for _, val, _, _, _, _, menu, _ in r:
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x = max_val_len.get(menu) or 0
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max_val_len[menu] = max(x, len(val))
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## Output
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max_line = 80
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buf = []
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done = [x[5] for x in r] + ['revision']
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for i in known_config:
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if i not in done:
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raise Exception("%s seems not exist" % i)
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sep = known_config.get('separate_toplevel_menu')
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for i0, val, i1, title, arrow, key, menu, comment in r:
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rem = max_line
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if val:
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val += (max_val_len[menu] - len(val)) * ' '
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rem -= i0 + i1 + bool(val) + len(val)
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line = i0 * ' ' + escape(val) + (i1 + bool(val)) * ' '
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rem -= len(arrow)
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if len(title) > rem:
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title = title[:rem - 3] + '...'
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b = title.lstrip('YyMmNnHh')
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a = title[:len(title) - len(b)]
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b0 = "<emphasis role='blue'>" + escape(b[0]) + "</emphasis>"
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line += escape(a) + b0 + escape(b[1:]) + escape(arrow)
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rem -= len(title)
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key = ' [' + key + ']' if type(key) == str else ''
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if len(key) <= rem:
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line += (rem - len(key)) * ' ' + key
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else:
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key = '... ' + key
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line += '\n' + ' ' * (max_line - len(key)) + key
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if type(comment) == str:
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comment = [comment]
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if comment:
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comment = '\n'.join([' ' * i0 + '# ' + line for line in comment])
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buf += [escape(comment) + ':']
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if not menu and buf:
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buf += ['']
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buf += [line.rstrip()]
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from jinja2 import Template
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t = Template('''<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE note PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
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<!-- Automatically generated by kernel-config.py
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DO NOT EDIT! -->
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<screen role="nodump"{{ rev }}>{{ '\n'.join(buf) }}</screen>''')
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rev = known_config.get('revision')
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rev = ' revision="%s"' % rev if rev else ''
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print(t.render(rev = rev, buf = buf))
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