src/etc/tidy.py

   1 # Copyright 2010-2014 The Rust Project Developers. See the COPYRIGHT
   2 # file at the top-level directory of this distribution and at
   3 # http://rust-lang.org/COPYRIGHT.
   4 #
   5 # Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 # http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 # <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 # option. This file may not be copied, modified, or distributed
   9 # except according to those terms.
  10
  11 import sys, fileinput, subprocess, re
  12 from licenseck import *
  13 import snapshot
  14
  15 err=0
  16 cols=100
  17 cr_flag="xfail-tidy-cr"
  18 tab_flag="xfail-tidy-tab"
  19 linelength_flag="xfail-tidy-linelength"
  20
  21 # Be careful to support Python 2.4, 2.6, and 3.x here!
  22 config_proc=subprocess.Popen([ "git", "config", "core.autocrlf" ],
  23                              stdout=subprocess.PIPE)
  24 result=config_proc.communicate()[0]
  25
  26 true="true".encode('utf8')
  27 autocrlf=result.strip() == true if result is not None else False
  28
  29 def report_error_name_no(name, no, s):
  30     global err
  31     print("%s:%d: %s" % (name, no, s))
  32     err=1
  33
  34 def report_err(s):
  35     report_error_name_no(fileinput.filename(), fileinput.filelineno(), s)
  36
  37 def report_warn(s):
  38     print("%s:%d: %s" % (fileinput.filename(),
  39                          fileinput.filelineno(),
  40                          s))
  41
  42 def do_license_check(name, contents):
  43     if not check_license(name, contents):
  44         report_error_name_no(name, 1, "incorrect license")
  45
  46
  47 file_names = [s for s in sys.argv[1:] if (not s.endswith("_gen.rs"))
  48                                      and (not ".#" in s)]
  49
  50 current_name = ""
  51 current_contents = ""
  52 check_tab = True
  53 check_cr = True
  54 check_linelength = True
  55
  56
  57 try:
  58     for line in fileinput.input(file_names,
  59                                 openhook=fileinput.hook_encoded("utf-8")):
  60
  61         if fileinput.filename().find("tidy.py") == -1:
  62             if line.find(cr_flag) != -1:
  63                 check_cr = False
  64             if line.find(tab_flag) != -1:
  65                 check_tab = False
  66             if line.find(linelength_flag) != -1:
  67                 check_linelength = False
  68             if line.find("// XXX") != -1:
  69                 report_err("XXX is no longer necessary, use FIXME")
  70             if line.find("TODO") != -1:
  71                 report_err("TODO is deprecated; use FIXME")
  72             match = re.match(r'^.*//\s*(NOTE.*)$', line)
  73             if match:
  74                 m = match.group(1)
  75                 if "snap" in m.lower():
  76                     report_warn(match.group(1))
  77             match = re.match(r'^.*//\s*SNAP\s+(\w+)', line)
  78             if match:
  79                 hsh = match.group(1)
  80                 date, rev = snapshot.curr_snapshot_rev()
  81                 if not hsh.startswith(rev):
  82                     report_err("snapshot out of date (" + date
  83                       + "): " + line)
  84             else:
  85                 if "SNAP" in line:
  86                     report_warn("unmatched SNAP line: " + line)
  87
  88         if check_tab and (line.find('\t') != -1 and
  89             fileinput.filename().find("Makefile") == -1):
  90             report_err("tab character")
  91         if check_cr and not autocrlf and line.find('\r') != -1:
  92             report_err("CR character")
  93         if line.endswith(" \n") or line.endswith("\t\n"):
  94             report_err("trailing whitespace")
  95         line_len = len(line)-2 if autocrlf else len(line)-1
  96
  97         if check_linelength and line_len > cols:
  98             report_err("line longer than %d chars" % cols)
  99
 100         if fileinput.isfirstline() and current_name != "":
 101             do_license_check(current_name, current_contents)
 102
 103         if fileinput.isfirstline():
 104             current_name = fileinput.filename()
 105             current_contents = ""
 106             check_cr = True
 107             check_tab = True
 108             check_linelength = True
 109
 110         current_contents += line
 111
 112     if current_name != "":
 113         do_license_check(current_name, current_contents)
 114
 115 except UnicodeDecodeError, e:
 116     report_err("UTF-8 decoding error " + str(e))
 117
 118
 119 sys.exit(err)