review/extension_ui.py @ 6930dfc9918a

Add documentation for hg review
author Steve Losh <steve@stevelosh.com>
date Sun, 11 Oct 2009 10:37:57 -0400
parents 8fd7562a81ad
children 4ede1c231525
"""The review extension's command-line UI.

This module is imported in __init__.py so that Mercurial will add the
review command to its own UI when you add the extension in ~/.hgrc.

"""

import operator, os
import messages
from api import *
from mercurial import help, templatefilters, util
from mercurial.node import short


def _init_command(ui, repo, **opts):
    ui.note(messages.INIT_START)
    try:
        ReviewDatastore(ui, repo, lpath=opts.pop('local_path'),
            rpath=opts.pop('remote_path'), create=True)
        ui.status(messages.INIT_SUCCESS)
        return
    except PreexistingDatastore, e:
        if e.committed:
            ui.note(messages.INIT_EXISTS_COMMITTED)
        else:
            raise util.Abort(messages.INIT_EXISTS_UNCOMMITTED)

def _comment_command(ui, repo, *fnames, **opts):
    rev = opts.pop('rev')
    message = opts.pop('message')
    lines = opts.pop('lines')
    
    rd = ReviewDatastore(ui, repo)
    rcset = rd[rev]
    
    if lines and not len(fnames) == 1:
        raise util.Abort(messages.COMMENT_LINES_REQUIRE_FILE)
    
    if not message:
        raise util.Abort(messages.COMMENT_REQUIRES_MESSAGE)
    
    if lines:
        lines=lines.split(',')
    
    if fnames:
        fnames = map(lambda f: sanitize_path(f, repo), fnames)
    else:
        fnames = ['']
    
    for fn in fnames:
        try:
            rcset.add_comment(message=message, filename=fn, lines=lines)
        except FileNotInChangeset:
            raise util.Abort(
                messages.COMMENT_FILE_DOES_NOT_EXIST % (fn, repo[rev].rev())
            )

def _signoff_command(ui, repo, **opts):
    rd = ReviewDatastore(ui, repo)
    rcset = rd[opts.pop('rev')]
    message = opts.pop('message')
    
    if not message:
        raise util.Abort(messages.SIGNOFF_REQUIRES_MESSAGE)
    
    yes, no = opts.pop('yes'), opts.pop('no')
    if yes and no:
        raise util.Abort(messages.SIGNOFF_OPINION_CONFLICT)
    opinion = 'yes' if yes else ('no' if no else '')
    
    try:
        rcset.add_signoff(message=message, opinion=opinion,
            force=opts.pop('force'))
    except SignoffExists:
        raise util.Abort(messages.SIGNOFF_EXISTS)

def _review_command(ui, repo, *fnames, **opts):
    rev = opts.pop('rev')
    context = int(opts.pop('unified'))
    
    rd = ReviewDatastore(ui, repo)
    cset = repo[rev]
    rcset = rd[rev]
    
    comment_count = len(rcset.comments)
    author_count = len(set(comment.author for comment in rcset.comments))
    
    ui.write(messages.REVIEW_LOG_CSET % (cset.rev(), short(cset.node())))
    ui.write(messages.REVIEW_LOG_AUTHOR % cset.user())
    ui.write(messages.REVIEW_LOG_SUMMARY % cset.description().split('\n')[0])
    
    signoffs = rcset.signoffs
    signoffs_yes = filter(lambda s: s.opinion == 'yes', signoffs)
    signoffs_no = filter(lambda s: s.opinion == 'no', signoffs)
    signoffs_neutral = set(signoffs).difference(signoffs_yes + signoffs_no)
    
    ui.write(messages.REVIEW_LOG_SIGNOFFS % (
        len(signoffs), len(signoffs_yes), len(signoffs_no), len(signoffs_neutral))
    )
    ui.write(messages.REVIEW_LOG_COMMENTS % (comment_count, author_count))
    
    def _print_comment(comment, before='', after=''):
        ui.write(before)
        
        author = templatefilters.person(comment.author)
        author_part = messages.REVIEW_LOG_COMMENT_AUTHOR % author
        
        age = templatefilters.age(comment.hgdate)
        age_part = messages.REVIEW_LOG_AGE % age 
        
        spacing = ' ' * (80 - (len(author_part) + len(age_part)))
        
        ui.write(author_part + spacing + age_part + '\n')
        for line in comment.message.splitlines():
            ui.write(messages.REVIEW_LOG_COMMENT_LINE % line)
        
        ui.write(after)
    
    def _print_signoff(signoff, before='', after=''):
        ui.write(before)
        
        author = templatefilters.person(signoff.author)
        opinion = signoff.opinion or 'neutral'
        author_part = messages.REVIEW_LOG_SIGNOFF_AUTHOR % (author, opinion)
        
        age = templatefilters.age(signoff.hgdate)
        age_part = messages.REVIEW_LOG_AGE % age
        
        spacing = ' ' * (80 - (len(author_part) + len(age_part)))
        
        ui.write(author_part + spacing + age_part + '\n')
        for line in signoff.message.splitlines():
            ui.write(messages.REVIEW_LOG_SIGNOFF_LINE % line)
        
        ui.write(after)
    
    if rcset.signoffs:
        ui.write('\n')
    for signoff in rcset.signoffs:
        _print_signoff(signoff, before='\n')
        
    review_level_comments = filter(lambda c: not c.filename, rcset.comments)
    if review_level_comments:
        ui.write('\n')
    for comment in review_level_comments:
        _print_comment(comment, before='\n')
    
    if ui.quiet:
        return
    
    fnames = [sanitize_path(fname, repo) for fname in fnames]
    diffs = rcset.diffs(fnames, context)
    
    for filename, diff in diffs.iteritems():
        max_line = diff['max']
        content = diff['content']
        
        header = messages.REVIEW_LOG_FILE_HEADER % filename
        print '\n\n%s %s' % (header, '-'*(80-(len(header)+1)))
        
        file_level_comments = filter(
            lambda c: filename == c.filename and not c.lines, rcset.comments
        )
        for comment in file_level_comments:
            _print_comment(comment)
        
        line_level_comments = filter(
            lambda c: filename == c.filename and c.lines, rcset.comments
        )
        prefix = '%%%dd: ' % len(str(content[-1][0]))
        previous_n = -1
        for n, line in content:
            if n - 1 > previous_n:
                skipped = n - previous_n
                if previous_n == -1:
                    skipped -= 1
                ui.write(messages.REVIEW_LOG_SKIPPED % skipped)
                skipped_comments = filter(
                    lambda c: max(c.lines) in range(previous_n + 1, n),
                    line_level_comments
                )
                for comment in skipped_comments:
                    _print_comment(comment)
            
            ui.write('%s %s\n' % (prefix % n, line))
            
            line_comments = filter(
                lambda c: max(c.lines) == n, line_level_comments
            )
            for comment in line_comments:
                _print_comment(comment)
            
            previous_n = n
        
        if previous_n < max_line:
            skipped = max_line - previous_n
            ui.write(messages.REVIEW_LOG_SKIPPED % skipped)
    


def review(ui, repo, *fnames, **opts):
    """code review changesets in the current repository
    
    To start using the review extension with a repository, you need to
    initialize the code review data:
    
        hg help review-init
    
    Once you've initialized it (and cloned the review data repo to a
    place where others can get to it), you can start reviewing changesets.
    
    See the following help topics if you want to use the command-line
    interface:
    
        hg help review-review
        hg help review-comment
        hg help review-signoff
    
    Once you've reviewed some changesets, don't forget to push your
    comments and signoffs so other people can view them.
    
    """
    if opts.pop('init'):
        return _init_command(ui, repo, **opts)
    elif opts.pop('comment'):
        return _comment_command(ui, repo, *fnames, **opts)
    elif opts.pop('signoff'):
        return _signoff_command(ui, repo, **opts)
    else:
        return _review_command(ui, repo, *fnames, **opts)


cmdtable = {
    'review': (review, [
        ('i', 'init',        False, 'start code reviewing this repository'),
        ('',  'local-path',  '',    'the local path to the code review data'),
        ('',  'remote-path', '',    'the remote path to code review data'),
        ('c', 'comment',     False, 'add a comment'),
        ('s', 'signoff',     False, 'sign off'),
        ('',  'yes',         False, 'sign off as stating the changeset is good'),
        ('',  'no',          False, 'sign off as stating the changeset is bad'),
        ('m', 'message',     '',    'use <text> as the comment or signoff message'),
        ('',  'force',       False, 'overwrite an existing signoff'),
        ('r', 'rev',         '.',   'the revision to review'),
        ('l', 'lines',       '',    'the line(s) of the file to comment on'),
        ('U', 'unified',     '5',   'number of lines of context to show'),
    ],
    'hg review')
}

help.helptable += (
    (['review-init', 'review-init'],
     ('Initializing code review for a repository'),
     (r"""
    
    """)),
    (['review-review', 'review-review'],
     ('Viewing code review data for changesets'),
     (r"""
hg review [-r REV] [-U CONTEXT] [--quiet] [FILE]
    
    Show code review information about a specific revision. Diffs of all
    changed files will be shown, and the line numbers printed are the ones
    that should be used with 'hg review --comment --lines LINES FILE'.
    
    If no revision is given, the current parent of the working directory
    will be shown.
    
    The number of lines of context in diffs can be changed with the -U option.
    If any FILEs are given, only those diffs will be shown. If --quiet is used
    no diffs will be shown.
    
    """)),
    (['review-comment', 'review-comment'],
     ('Adding code review comments for changesets'),
     (r"""
hg review --comment -m MESSAGE [-r REV] [-l LINES] [FILE]
    
    If no revision is given, the current parent of the working directory
    will be used.
    
    If no FILEs are given, the comment will be attached to the changeset
    as a whole.
    
    If one or more FILEs are given but no LINES are given, the comment will
    be attached to the each file as a whole.
    
    If a FILE is given and LINES is given the comment will be attached to
    those specific lines.  LINES should be a comma-separated list of line
    numbers (as numbered in the output of 'hg review'), such as '3' or '2,3'
    
    Examples:
    
        hg review --comment -m 'This changeset needs to go in branch X.'
        hg review --comment -m 'This file should just be deleted.' script.py
        hg review --comment -m 'Trailing whitespace!' --lines 1,2,30 utils.py
    
    """)),
    (['review-signoff', 'review-signoff'],
     ('Adding code review signoffs for changesets'),
     (r"""
hg review --signoff -m MESSAGE [--yes | --no] [-r REV] [--force]
    
    If no revision is given, the current parent of the working directory
    will be used.
    
    The --yes and --no options can be used to indicate whether you think
    the changeset is "good" or "bad".  It's up to the collaborators of each
    individual project to decide exactly what that means.  If neither option
    is given the signoff will be marked as "neutral".
    
    If you've already signed off on a changeset, you can use --force to
    overwrite your previous signoff with a new one.
    
    Examples:
    
        hg review --signoff -m 'I do not work on this part of the code.'
        hg review --signoff --yes -m 'Thanks, this change looks good.'
        hg review --signoff --no -m 'This would break backwards compatibility!'
        hg review --signoff --yes --force -m 'Nevermind, this is fine.'
    
    """)),
)