From: "Gao, Liming" <liming.gao@intel.com>
To: Daniil Egranov <daniil.egranov@arm.com>,
"edk2-devel@lists.01.org" <edk2-devel@lists.01.org>
Cc: "leif.lindholm@linaro.org" <leif.lindholm@linaro.org>
Subject: Re: [PATCH v5] BaseTools/Scripts/PatchCheck.py: Extended patch style check for c code
Date: Wed, 14 Dec 2016 07:00:58 +0000 [thread overview]
Message-ID: <4A89E2EF3DFEDB4C8BFDE51014F606A14D6A4D05@SHSMSX104.ccr.corp.intel.com> (raw)
In-Reply-To: <1481638518-37028-1-git-send-email-daniil.egranov@arm.com>
Daniil:
Could you update the script to print line number in source file instead of diff file? Sometimes, the developer uses this script with revision. The print line in the diff file is not obvious. And, I also find the report line number is difference for the same patch with the two ways: PatchCheck.py revision and PatchCheck.py 0001-xxxx.patch. So, I suggest to print the line number in source file.
Thanks
Liming
> -----Original Message-----
> From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of
> Daniil Egranov
> Sent: Tuesday, December 13, 2016 10:15 PM
> To: edk2-devel@lists.01.org
> Cc: Gao, Liming <liming.gao@intel.com>; leif.lindholm@linaro.org
> Subject: [edk2] [PATCH v5] BaseTools/Scripts/PatchCheck.py: Extended
> patch style check for c code
>
> Corrected code checking for multi-line and commented lines. Both
> multi-line and open comment flags will be reset when leaving
> diff "+" area of the patch.
> Changed version of the tool to 0.2.
>
> Contributed-under: TianoCore Contribution Agreement 1.0
> Signed-off-by: Daniil Egranov <daniil.egranov@arm.com>
> ---
> Changelog:
>
> v4
> Corrected maximum code line size to 120 characters.
>
> v3
> Corrected space detection before parentheses.
>
> v2:
> Fixed several indentation cases
>
> v1:
> Fixed reporting signature error for a cover letter.
> Fixed reporting line size error for a file change information
> included in the commit message.
> Fixed line number reported in PatchCheck error messages. It
> points to the correct line in the diff file.
> The patch extends style checking for c code:
> Added check for code indentation.
> Added report line size greater than 80 characters.
> Added checking for space before '('.
> Added checking for space before '{'.
> Added checking for '}' to be on a new line and have spaces
> for "} else {" or "} while ()" cases.
>
> BaseTools/Scripts/PatchCheck.py | 263
> ++++++++++++++++++++++++++++++++++++----
> 1 file changed, 238 insertions(+), 25 deletions(-)
>
> diff --git a/BaseTools/Scripts/PatchCheck.py
> b/BaseTools/Scripts/PatchCheck.py
> index 7c30082..2406601 100755
> --- a/BaseTools/Scripts/PatchCheck.py
> +++ b/BaseTools/Scripts/PatchCheck.py
> @@ -15,7 +15,7 @@
>
> from __future__ import print_function
>
> -VersionNumber = '0.1'
> +VersionNumber = '0.2'
> __copyright__ = "Copyright (c) 2015 - 2016, Intel Corporation All rights
> reserved."
>
> import email
> @@ -32,7 +32,7 @@ class Verbose:
> class CommitMessageCheck:
> """Checks the contents of a git commit message."""
>
> - def __init__(self, subject, message):
> + def __init__(self, subject, message, message_offset, cover):
> self.ok = True
>
> if subject is None and message is None:
> @@ -41,9 +41,15 @@ class CommitMessageCheck:
>
> self.subject = subject
> self.msg = message
> + self.msg_offset = message_offset
> + self.cover = cover
> +
> + if not cover:
> + self.check_contributed_under()
> + self.check_signed_off_by()
> + else:
> + print('The commit message is cover letter.')
>
> - self.check_contributed_under()
> - self.check_signed_off_by()
> self.check_misc_signatures()
> self.check_overall_format()
> self.report_message_result()
> @@ -180,6 +186,9 @@ class CommitMessageCheck:
> for sig in self.sig_types:
> self.find_signatures(sig)
>
> + diff_change_info_re = \
> + re.compile(r'.*\|\s+(\d|Bin)*\s.*[\+\-]')
> +
> def check_overall_format(self):
> lines = self.msg.splitlines()
>
> @@ -197,9 +206,10 @@ class CommitMessageCheck:
> self.error('Empty commit message!')
> return
>
> - if count >= 1 and len(lines[0]) >= 72:
> + if count >= 1 and len(lines[0]) > 72:
> self.error('First line of commit message (subject line) ' +
> - 'is too long.')
> + 'is too long (%d) (max 72 characters):' %(len(lines[0])))
> + print(lines[0], '\n')
>
> if count >= 1 and len(lines[0].strip()) == 0:
> self.error('First line of commit message (subject line) ' +
> @@ -210,10 +220,13 @@ class CommitMessageCheck:
> 'empty.')
>
> for i in range(2, count):
> - if (len(lines[i]) >= 76 and
> + if (len(lines[i]) > 76 and
> len(lines[i].split()) > 1 and
> - not lines[i].startswith('git-svn-id:')):
> - self.error('Line %d of commit message is too long.' % (i + 1))
> + not lines[i].startswith('git-svn-id:') and
> + self.diff_change_info_re.search(lines[i]) is None):
> + self.error('Line %d of commit message is too long (%d) (max 76
> characters):' \
> + % (i + self.msg_offset - 1, len(lines[i])))
> + print(lines[i], '\n')
>
> last_sig_line = None
> for i in range(count - 1, 0, -1):
> @@ -236,13 +249,18 @@ class CommitMessageCheck:
> class GitDiffCheck:
> """Checks the contents of a git diff."""
>
> - def __init__(self, diff):
> + def __init__(self, diff, offset):
> self.ok = True
> self.format_ok = True
> self.lines = diff.splitlines(True)
> self.count = len(self.lines)
> self.line_num = 0
> self.state = START
> + self.comments_open = False
> + self.multiline_string = False
> + self.current_indent_size = 0
> + self.parentheses_count = 0
> + self.offset = offset
> while self.line_num < self.count and self.format_ok:
> line_num = self.line_num
> self.run()
> @@ -255,6 +273,12 @@ class GitDiffCheck:
> if self.ok:
> print('The code passed all checks.')
>
> + def clean_counts(self):
> + self.current_indent_size = -1
> + self.parentheses_count = 0
> + self.comments_open = False
> + self.multiline_string = False
> +
> def run(self):
> line = self.lines[self.line_num]
>
> @@ -283,6 +307,20 @@ class GitDiffCheck:
> elif self.state == PRE_PATCH:
> if line.startswith('+++ b/'):
> self.set_filename(line[6:].rstrip())
> + print("Checking patch for %s ...\n" %(self.hunk_filename))
> + if self.hunk_filename.endswith(".c") or \
> + self.hunk_filename.endswith(".h"):
> + self.file_type = "c_type"
> + elif self.hunk_filename.endswith(".dec") or \
> + self.hunk_filename.endswith(".dsc") or \
> + self.hunk_filename.endswith(".fdf"):
> + self.file_type = "edk2_type"
> + elif self.hunk_filename.endswith(".S"):
> + self.file_type = "asm_arm_type"
> + elif self.hunk_filename.endswith(".asm"):
> + self.file_type = "asm_type"
> + else:
> + self.file_type = "other_type"
> if line.startswith('@@ '):
> self.state = PATCH
> self.binary = False
> @@ -296,18 +334,27 @@ class GitDiffCheck:
> ok = True
> if not ok:
> self.format_error("didn't find diff hunk marker (@@)")
> +
> self.line_num += 1
> elif self.state == PATCH:
> if self.binary:
> + self.clean_counts()
> pass
> if line.startswith('-'):
> + self.clean_counts()
> pass
> elif line.startswith('+'):
> - self.check_added_line(line[1:])
> + # indentation resets every time we leave "+" diff area
> + self.check_added_line(line[1:], self.line_num + self.offset)
> elif line.startswith(r'\ No newline '):
> + self.clean_counts()
> pass
> elif not line.startswith(' '):
> + self.clean_counts()
> self.format_error("unexpected patch line")
> + else:
> + self.clean_counts()
> +
> self.line_num += 1
>
> pre_patch_prefixes = (
> @@ -336,7 +383,7 @@ class GitDiffCheck:
> lines = [ msg ]
> if self.hunk_filename is not None:
> lines.append('File: ' + self.hunk_filename)
> - lines.append('Line: ' + line)
> + lines.append('Line: ' + line + '\n')
>
> self.error(*lines)
>
> @@ -348,28 +395,171 @@ class GitDiffCheck:
> ''',
> re.VERBOSE)
>
> - def check_added_line(self, line):
> + space_check_parentheses_re = re.compile(r'[a-zA-Z0-
> 9_]\S*\((?<!\)\()(?<!\(\().*')
> + space_check_brace_open_re = re.compile(r'[a-zA-Z0-9_]\S*\{')
> + space_check_brace_close_re = re.compile(r'[\}]\S.*')
> + brace_open_check_re = re.compile(r'[a-zA-Z0-9_]*\{')
> + brace_close_check_re = re.compile(r'.*\}.*')
> + multiline_check_re = re.compile(r'[a-zA-Z0-9_]*(\\|\&|\,|\+|\-
> |\*|\||\=)\Z')
> +
> + def check_added_line(self, line, line_num):
> eol = ''
> for an_eol in self.line_endings:
> if line.endswith(an_eol):
> eol = an_eol
> line = line[:-len(eol)]
>
> - stripped = line.rstrip()
> + # empty "+" line, skip it
> + if len(line) == 0:
> + return
> +
> + rstripped = line.rstrip()
> + lstripped = line.lstrip()
>
> if self.force_crlf and eol != '\r\n':
> - self.added_line_error('Line ending (%s) is not CRLF' % repr(eol),
> + self.added_line_error('Line ending (%s) is not CRLF:' % repr(eol),
> line)
> if '\t' in line:
> - self.added_line_error('Tab character used', line)
> - if len(stripped) < len(line):
> - self.added_line_error('Trailing whitespace found', line)
> + self.added_line_error('Tab character used at line %d:' \
> + %(line_num), line)
> + if len(rstripped) < len(line):
> + self.added_line_error('Trailing whitespace found at line %d:' \
> + %(line_num), line)
> + # the file type specific checks
> + if self.file_type == "c_type":
> +
> + # set initial indentation as the number of spaces after the first "+"
> + # indentation does not apply on lines with 0 characters
> + # adjust the indentation if first "+" has "}"
> + if self.current_indent_size == -1:
> + if len(lstripped) != 0:
> + self.current_indent_size = len(line) - len(lstripped)
> + else:
> + self.clean_counts()
>
> - mo = self.old_debug_re.search(line)
> - if mo is not None:
> - self.added_line_error('EFI_D_' + mo.group(1) + ' was used, '
> - 'but DEBUG_' + mo.group(1) +
> - ' is now recommended', line)
> + if lstripped.startswith("}"):
> + self.current_indent_size = line.find("}") + 2
> +
> + indent_size = len(line) - len(lstripped)
> + indent_size_adjust = 0
> + force_brace_check = False
> +
> + if len(line) > 120:
> + self.added_line_error('Line %d is too long (%d) (max 120
> characters):' \
> + %(line_num, len(line)), line)
> +
> + # skip comments for code checking
> + if lstripped.startswith("//"):
> + return
> + if lstripped.startswith("/*") and not self.comments_open:
> + self.comments_open = True
> +
> + if rstripped.endswith("*/") and self.comments_open:
> + self.comments_open = False
> + return
> +
> + if rstripped.endswith("*/") and not self.comments_open:
> + # found unknown close comment, reset the indentation as
> + # no idea where it started
> + self.current_indent_size = -1
> + return
> +
> + if not self.comments_open:
> + mo = self.old_debug_re.search(line)
> + if mo is not None:
> + self.added_line_error('EFI_D_' + mo.group(1) + ' was used, '
> + 'but DEBUG_' + mo.group(1) +
> + ' is now recommended at line %d' \
> + %(line_num), line)
> +
> + # track down multiple braces in the same line
> + braces_count = line.count('{') - line.count('}')
> +
> + # track down a special case with "} else ..{" braces
> + if line.find("else") != -1:
> + force_brace_check = True
> +
> + # check for closing brace which affects indentation
> + if braces_count < 0 and not force_brace_check:
> + self.current_indent_size -= 2 * abs(braces_count)
> + elif force_brace_check:
> + if line.find("}") != -1:
> + self.current_indent_size -= 2
> + braces_count = 1
> +
> + # for the switch()/case:, adjust "case:" and "default:" indentation
> + # as they aligned with the "switch()" indentation
> + if lstripped.startswith("case ") or \
> + lstripped.startswith("default:"):
> + indent_size_adjust = -2
> +
> + # indentation code check related to the diff structure
> + # do not check code indentation between parentheses
> + if indent_size != self.current_indent_size + indent_size_adjust \
> + and len(line) != 0 and self.parentheses_count == 0 \
> + and not self.multiline_string:
> + self.added_line_error('Invalid indentation at line %d.
> Expecting %d but found %d spaces:' \
> + % (line_num, self.current_indent_size + indent_size_adjust, \
> + indent_size), line)
> +
> + # check for missing space before open brace
> + if braces_count > 0 or force_brace_check:
> + if line.find("{") != -1:
> + self.current_indent_size += 2 * braces_count
> + if not line.startswith("{"):
> + spb_check = self.space_check_brace_open_re.search(line)
> + if spb_check is not None:
> + self.added_line_error('Missing space before \'{\' at line %d:' \
> + %(line_num), line)
> +
> + # check for missing space before open parenthesis
> + spo = self.space_check_parentheses_re.search(line)
> + if spo is not None and not self.multiline_string:
> + # check if it's not inside of the double quoted string or
> + # (aa)(bb)fff case
> + text_str_start = line.find('\"')
> + if not (text_str_start != -1 and text_str_start < spo.start()):
> + self.added_line_error('Missing space before \'(\' at line %d:' \
> + %(line_num), line)
> +
> + # check for closing brace cases
> + if braces_count < 0 or \
> + (force_brace_check and line.find("}") != -1):
> + if not lstripped.startswith("}") and rstripped.endswith("}"):
> + self.added_line_error('The \'}\' is not on its own line at line %d:'
> \
> + %(line_num), line)
> + if not lstripped.endswith("}"):
> + scb = self.space_check_brace_close_re.search(lstripped)
> + if scb is not None \
> + and lstripped[scb.start() + 1] != ';' \
> + and lstripped[scb.start() + 1] != ',' \
> + and lstripped[scb.start() + 1] != '}':
> + self.added_line_error('Missing space after \'}\' at line %d:' \
> + %(line_num), line)
> +
> + # track down parentheses, no indentation check between them
> + if not (self.parentheses_count == 0 and lstripped.startswith(')') \
> + and not self.multiline_string and not self.comments_open):
> + self.parentheses_count += line.count('(') - line.count(')')
> +
> + # multiline strings indentation is unknown
> + if not self.comments_open:
> + mlc = self.multiline_check_re.search(line)
> + if mlc is not None:
> + self.multiline_string = True
> + else:
> + self.multiline_string = False
> +
> + elif self.file_type == "edk2_type":
> + pass
> + elif self.file_type == "asm_arm_type":
> + pass
> + elif self.file_type == "asm_type":
> + pass
> + elif self.file_type == "other_type":
> + pass
> + else:
> + pass
>
> split_diff_re = re.compile(r'''
> (?P<cmd>
> @@ -410,12 +600,13 @@ class CheckOnePatch:
> self.patch = patch
> self.find_patch_pieces()
>
> - msg_check = CommitMessageCheck(self.commit_subject,
> self.commit_msg)
> + msg_check = CommitMessageCheck(self.commit_subject,
> self.commit_msg, \
> + self.commit_msg_offset, self.cover)
> msg_ok = msg_check.ok
>
> diff_ok = True
> if self.diff is not None:
> - diff_check = GitDiffCheck(self.diff)
> + diff_check = GitDiffCheck(self.diff, self.diff_offset)
> diff_ok = diff_check.ok
>
> self.ok = msg_ok and diff_ok
> @@ -458,6 +649,16 @@ class CheckOnePatch:
> ''',
> re.VERBOSE)
>
> + cover_letter_re = re.compile(r'Subject:\s*\[PATCH.*.0/.*',
> + re.IGNORECASE | re.MULTILINE)
> +
> + def is_cover_letter(self, patch):
> + cl = self.cover_letter_re.search(patch)
> + if cl is None:
> + return False
> +
> + return True
> +
> def find_patch_pieces(self):
> if sys.version_info < (3, 0):
> patch = self.patch.encode('ascii', 'ignore')
> @@ -465,10 +666,13 @@ class CheckOnePatch:
> patch = self.patch
>
> self.commit_msg = None
> + self.commit_msg_offset = 0
> self.stat = None
> self.commit_subject = None
> self.commit_prefix = None
> self.diff = None
> + self.diff_offset = 0
> + self.cover = False
>
> if patch.startswith('diff --git'):
> self.diff = patch
> @@ -480,6 +684,14 @@ class CheckOnePatch:
> assert(parts[0].get_content_type() == 'text/plain')
> content = parts[0].get_payload(decode=True).decode('utf-8', 'ignore')
>
> + # find offset of content
> + self.commit_msg_offset = len(patch.splitlines()) -
> len(content.splitlines())
> +
> + # find offset of first diff section
> + mo = self.git_diff_re.search(patch)
> + if mo is not None:
> + self.diff_offset = len(patch[:mo.start()].splitlines()) + 1
> +
> mo = self.git_diff_re.search(content)
> if mo is not None:
> self.diff = content[mo.start():]
> @@ -492,6 +704,7 @@ class CheckOnePatch:
> self.stat = mo.group('stat')
> self.commit_msg = mo.group('commit_message')
>
> + self.cover = self.is_cover_letter(patch)
> self.commit_subject = pmail['subject'].replace('\r\n', '')
> self.commit_subject = self.commit_subject.replace('\n', '')
> self.commit_subject = self.subject_prefix_re.sub('',
> self.commit_subject, 1)
> --
> 2.7.4
>
> _______________________________________________
> edk2-devel mailing list
> edk2-devel@lists.01.org
> https://lists.01.org/mailman/listinfo/edk2-devel
next prev parent reply other threads:[~2016-12-14 7:01 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-13 14:15 [PATCH v5] BaseTools/Scripts/PatchCheck.py: Extended patch style check for c code Daniil Egranov
2016-12-14 7:00 ` Gao, Liming [this message]
2016-12-15 2:22 ` Jordan Justen
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