meta2deps.py (49caa483b3fafffd9cf5197eb30e8bb235aa7410) meta2deps.py (ef0b253881c9546ff88d3ed8480df7c791b3ddff)
1#!/usr/bin/env python
2
3from __future__ import print_function
4
5"""
6This script parses each "meta" file and extracts the
7information needed to deduce build and src dependencies.
8

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32
33'V' the filemon version, this record is used as a clue
34 that we have reached the interesting bit.
35
36"""
37
38"""
39RCSid:
1#!/usr/bin/env python
2
3from __future__ import print_function
4
5"""
6This script parses each "meta" file and extracts the
7information needed to deduce build and src dependencies.
8

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32
33'V' the filemon version, this record is used as a clue
34 that we have reached the interesting bit.
35
36"""
37
38"""
39RCSid:
40 $Id: meta2deps.py,v 1.28 2020/05/16 23:21:48 sjg Exp $
40 $Id: meta2deps.py,v 1.30 2020/06/08 23:05:00 sjg Exp $
41
42 Copyright (c) 2011-2019, Simon J. Gerraty
43 Copyright (c) 2011-2017, Juniper Networks, Inc.
44 All rights reserved.
45
46 Redistribution and use in source and binary forms, with or without
47 modification, are permitted provided that the following conditions
48 are met:

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76
77def resolve(path, cwd, last_dir=None, debug=0, debug_out=sys.stderr):
78 """
79 Return an absolute path, resolving via cwd or last_dir if needed.
80 """
81 if path.endswith('/.'):
82 path = path[0:-2]
83 if len(path) > 0 and path[0] == '/':
41
42 Copyright (c) 2011-2019, Simon J. Gerraty
43 Copyright (c) 2011-2017, Juniper Networks, Inc.
44 All rights reserved.
45
46 Redistribution and use in source and binary forms, with or without
47 modification, are permitted provided that the following conditions
48 are met:

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76
77def resolve(path, cwd, last_dir=None, debug=0, debug_out=sys.stderr):
78 """
79 Return an absolute path, resolving via cwd or last_dir if needed.
80 """
81 if path.endswith('/.'):
82 path = path[0:-2]
83 if len(path) > 0 and path[0] == '/':
84 return path
84 if os.path.exists(path):
85 return path
86 if debug > 2:
87 print("skipping non-existent:", path, file=debug_out)
88 return None
85 if path == '.':
86 return cwd
87 if path.startswith('./'):
88 return cwd + path[1:]
89 if last_dir == cwd:
90 last_dir = None
91 for d in [last_dir, cwd]:
92 if not d:

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134def abspath(path, cwd, last_dir=None, debug=0, debug_out=sys.stderr):
135 """
136 Return an absolute path, resolving via cwd or last_dir if needed.
137 this gets called a lot, so we try to avoid calling realpath.
138 """
139 rpath = resolve(path, cwd, last_dir, debug, debug_out)
140 if rpath:
141 path = rpath
89 if path == '.':
90 return cwd
91 if path.startswith('./'):
92 return cwd + path[1:]
93 if last_dir == cwd:
94 last_dir = None
95 for d in [last_dir, cwd]:
96 if not d:

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138def abspath(path, cwd, last_dir=None, debug=0, debug_out=sys.stderr):
139 """
140 Return an absolute path, resolving via cwd or last_dir if needed.
141 this gets called a lot, so we try to avoid calling realpath.
142 """
143 rpath = resolve(path, cwd, last_dir, debug, debug_out)
144 if rpath:
145 path = rpath
146 elif len(path) > 0 and path[0] == '/':
147 return None
142 if (path.find('/') < 0 or
143 path.find('./') > 0 or
144 path.endswith('/..')):
145 path = cleanpath(path)
146 return path
147
148def sort_unique(list, cmp=None, key=None, reverse=False):
149 list.sort(cmp, key, reverse)

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470 if w[0] == 'F':
471 npid = int(w[2])
472 pid_cwd[npid] = cwd
473 pid_last_dir[npid] = cwd
474 last_pid = npid
475 continue
476 elif w[0] == 'C':
477 cwd = abspath(w[2], cwd, None, self.debug, self.debug_out)
148 if (path.find('/') < 0 or
149 path.find('./') > 0 or
150 path.endswith('/..')):
151 path = cleanpath(path)
152 return path
153
154def sort_unique(list, cmp=None, key=None, reverse=False):
155 list.sort(cmp, key, reverse)

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476 if w[0] == 'F':
477 npid = int(w[2])
478 pid_cwd[npid] = cwd
479 pid_last_dir[npid] = cwd
480 last_pid = npid
481 continue
482 elif w[0] == 'C':
483 cwd = abspath(w[2], cwd, None, self.debug, self.debug_out)
484 if not cwd:
485 cwd = w[2]
486 if self.debug > 1:
487 print("missing cwd=", cwd, file=self.debug_out)
478 if cwd.endswith('/.'):
479 cwd = cwd[0:-2]
480 self.last_dir = pid_last_dir[pid] = cwd
481 pid_cwd[pid] = cwd
482 if self.debug > 1:
483 print("cwd=", cwd, file=self.debug_out)
484 continue
485
486 if w[2] in self.seen:
487 if self.debug > 2:
488 print("seen:", w[2], file=self.debug_out)
489 continue
490 # file operations
491 if w[0] in 'ML':
492 # these are special, tread src as read and
493 # target as write
488 if cwd.endswith('/.'):
489 cwd = cwd[0:-2]
490 self.last_dir = pid_last_dir[pid] = cwd
491 pid_cwd[pid] = cwd
492 if self.debug > 1:
493 print("cwd=", cwd, file=self.debug_out)
494 continue
495
496 if w[2] in self.seen:
497 if self.debug > 2:
498 print("seen:", w[2], file=self.debug_out)
499 continue
500 # file operations
501 if w[0] in 'ML':
502 # these are special, tread src as read and
503 # target as write
494 self.parse_path(w[1].strip("'"), cwd, 'R', w)
495 self.parse_path(w[2].strip("'"), cwd, 'W', w)
504 self.parse_path(w[2].strip("'"), cwd, 'R', w)
505 self.parse_path(w[3].strip("'"), cwd, 'W', w)
496 continue
497 elif w[0] in 'ERWS':
498 path = w[2]
499 self.parse_path(path, cwd, w[0], w)
500
501 if not file:
502 f.close()
503

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558 return
559 if os.path.isdir(path):
560 if op in 'RW':
561 self.last_dir = path;
562 if self.debug > 1:
563 print("ldir=", self.last_dir, file=self.debug_out)
564 return
565
506 continue
507 elif w[0] in 'ERWS':
508 path = w[2]
509 self.parse_path(path, cwd, w[0], w)
510
511 if not file:
512 f.close()
513

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568 return
569 if os.path.isdir(path):
570 if op in 'RW':
571 self.last_dir = path;
572 if self.debug > 1:
573 print("ldir=", self.last_dir, file=self.debug_out)
574 return
575
566 if op in 'ERW':
576 if op in 'ER':
567 # finally, we get down to it
568 if dir == self.cwd or dir == self.curdir:
569 return
570 if self.is_src(base, dir, rdir):
571 self.seenit(w[2])
572 if not rdir:
573 return
574

--- 181 unchanged lines hidden --- 		577 # finally, we get down to it
578 if dir == self.cwd or dir == self.curdir:
579 return
580 if self.is_src(base, dir, rdir):
581 self.seenit(w[2])
582 if not rdir:
583 return
584

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