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/usr/lib/viewvc/bin/svndbadmin is in viewvc-query 1.1.22-1.

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#!/usr/bin/python
# -*-python-*-
#
# Copyright (C) 2004-2013 The ViewCVS Group. All Rights Reserved.
# Copyright (C) 2004-2007 James Henstridge
#
# By using this file, you agree to the terms and conditions set forth in
# the LICENSE.html file which can be found at the top level of the ViewVC
# distribution or at http://viewvc.org/license-1.html.
#
# For more information, visit http://viewvc.org/
#
# -----------------------------------------------------------------------
#
# administrative program for loading Subversion revision information
# into the checkin database.  It can be used to add a single revision
# to the database, or rebuild/update all revisions.
#
# To add all the checkins from a Subversion repository to the checkin
# database, run the following:
#    /path/to/svndbadmin rebuild /path/to/repo
#
# This script can also be called from the Subversion post-commit hook,
# something like this:
#    REPOS="$1"
#    REV="$2"
#    /path/to/svndbadmin update "$REPOS" "$REV"
#
# If you allow changes to revision properties in your repository, you
# might also want to set up something similar in the
# post-revprop-change hook using "update" with the --force option to
# keep the checkin database consistent with the repository.
#
# -----------------------------------------------------------------------
#

#########################################################################
#
# INSTALL-TIME CONFIGURATION
#
# These values will be set during the installation process. During
# development, they will remain None.
#

LIBRARY_DIR = r"/usr/lib/viewvc/lib"
CONF_PATHNAME = r"/etc/viewvc/viewvc.conf"

# Adjust sys.path to include our library directory
import sys
import os

if LIBRARY_DIR:
    sys.path.insert(0, LIBRARY_DIR)
else:
    sys.path.insert(0, os.path.abspath(os.path.join(sys.argv[0], "../../lib")))

#########################################################################

import os
import string
import re

import svn.core
import svn.repos
import svn.fs
import svn.delta

import cvsdb
import viewvc
import vclib

class SvnRepo:
    """Class used to manage a connection to a SVN repository."""
    def __init__(self, path):
        self.path = path
        self.repo = svn.repos.svn_repos_open(path)
        self.fs = svn.repos.svn_repos_fs(self.repo)
        self.rev_max = svn.fs.youngest_rev(self.fs)
    def __getitem__(self, rev):
        if rev is None:
            rev = self.rev_max
        elif rev < 0:
            rev = rev + self.rev_max + 1
        assert 0 <= rev <= self.rev_max
        rev = SvnRev(self, rev)
        return rev

_re_diff_change_command = re.compile('(\d+)(?:,(\d+))?([acd])(\d+)(?:,(\d+))?')

def _get_diff_counts(diff_fp):
    """Calculate the plus/minus counts by parsing the output of a
    normal diff.  The reasons for choosing Normal diff format are:
      - the output is short, so should be quicker to parse.
      - only the change commands need be parsed to calculate the counts.
      - All file data is prefixed, so won't be mistaken for a change
        command.
    This code is based on the description of the format found in the
    GNU diff manual."""

    plus, minus = 0, 0
    line = diff_fp.readline()
    while line:
        match = re.match(_re_diff_change_command, line)
        if match:
            # size of first range
            if match.group(2):
                count1 = int(match.group(2)) - int(match.group(1)) + 1
            else:
                count1 = 1
            cmd = match.group(3)
            # size of second range
            if match.group(5):
                count2 = int(match.group(5)) - int(match.group(4)) + 1
            else:
                count2 = 1

            if cmd == 'a':
                # LaR - insert after line L of file1 range R of file2
                plus = plus + count2
            elif cmd == 'c':
                # FcT - replace range F of file1 with range T of file2
                minus = minus + count1
                plus = plus + count2
            elif cmd == 'd':
                # RdL - remove range R of file1, which would have been
                #       at line L of file2
                minus = minus + count1
        line = diff_fp.readline()
    return plus, minus


class SvnRev:
    """Class used to hold information about a particular revision of
    the repository."""
    def __init__(self, repo, rev):
        self.repo = repo
        self.rev = rev
        self.rev_roots = {} # cache of revision roots

        # revision properties ...
        revprops = svn.fs.revision_proplist(repo.fs, rev)
        self.author = str(revprops.get(svn.core.SVN_PROP_REVISION_AUTHOR,''))
        self.date = str(revprops.get(svn.core.SVN_PROP_REVISION_DATE, ''))
        self.log = str(revprops.get(svn.core.SVN_PROP_REVISION_LOG, ''))

        # convert the date string to seconds since epoch ...
        try:
            self.date = svn.core.svn_time_from_cstring(self.date) / 1000000
        except:
            self.date = None

        # get a root for the current revisions
        fsroot = self._get_root_for_rev(rev)
        
        # find changes in the revision
        editor = svn.repos.ChangeCollector(repo.fs, fsroot)
        e_ptr, e_baton = svn.delta.make_editor(editor)
        svn.repos.svn_repos_replay(fsroot, e_ptr, e_baton)

        self.changes = []
        for path, change in editor.changes.items():
            # skip non-file changes
            if change.item_kind != svn.core.svn_node_file:
                continue

            # deal with the change types we handle
            action = None
            base_root = None
            base_path = change.base_path
            if change.base_path:
                base_root = self._get_root_for_rev(change.base_rev)

            # figure out what kind of change this is, and get a diff
            # object for it.  note that prior to 1.4 Subversion's
            # bindings didn't give us change.action, but that's okay
            # because back then deleted paths always had a change.path
            # of None.
            if hasattr(change, 'action') \
               and change.action == svn.repos.CHANGE_ACTION_DELETE:
                action = 'remove'
            elif not change.path:
                action = 'remove'
            elif change.added:
                action = 'add'
            else:
                action = 'change'

            if action == 'remove':
                diffobj = svn.fs.FileDiff(base_root, base_path, None, None)
            else:
                diffobj = svn.fs.FileDiff(base_root, base_path,
                                          fsroot, change.path)

            diff_fp = diffobj.get_pipe()
            plus, minus = _get_diff_counts(diff_fp)
            self.changes.append((path, action, plus, minus))

    def _get_root_for_rev(self, rev):
        """Fetch a revision root from a cache of such, or a fresh root
        (which is then cached for later use."""
        if not self.rev_roots.has_key(rev):
            self.rev_roots[rev] = svn.fs.revision_root(self.repo.fs, rev)
        return self.rev_roots[rev]


def handle_revision(db, command, repo, rev, verbose, force=0):
    """Adds a particular revision of the repository to the checkin database."""
    revision = repo[rev]
    committed = 0

    if verbose: print "Building commit info for revision %d..." % (rev),

    if not revision.changes:
        if verbose: print "skipped (no changes)."
        return

    for (path, action, plus, minus) in revision.changes:
        directory, file = os.path.split(path)
        commit = cvsdb.CreateCommit()
        commit.SetRepository(repo.path)
        commit.SetDirectory(directory)
        commit.SetFile(file)
        commit.SetRevision(str(rev))
        commit.SetAuthor(revision.author)
        commit.SetDescription(revision.log)
        commit.SetTime(revision.date)
        commit.SetPlusCount(plus)
        commit.SetMinusCount(minus)
        commit.SetBranch(None)

        if action == 'add':
            commit.SetTypeAdd()
        elif action == 'remove':
            commit.SetTypeRemove()
        elif action == 'change':
            commit.SetTypeChange()

        if command == 'update':
            result = db.CheckCommit(commit)
            if result and not force:
                continue # already recorded

        # commit to database
        db.AddCommit(commit)
        committed = 1

    if verbose:
        if committed:
            print "done."
        else:
            print "skipped (already recorded)."

def main(command, repository, revs=[], verbose=0, force=0):
    cfg = viewvc.load_config(CONF_PATHNAME)
    db = cvsdb.ConnectDatabase(cfg)

    # Purge what must be purged.
    if command in ('rebuild', 'purge'):
        if verbose:
            print "Purging commit info for repository root `%s'" % repository
        try:
            db.PurgeRepository(repository)
        except cvsdb.UnknownRepositoryError, e:
            if command == 'purge':
                sys.stderr.write("ERROR: " + str(e) + "\n")
                sys.exit(1)

    # Record what must be recorded.
    if command in ('rebuild', 'update'):
        if not os.path.exists(repository):
            sys.stderr.write('ERROR: could not find repository %s\n'
                             % (repository))
            sys.exit(1)
        repo = SvnRepo(repository)
        if command == 'rebuild' or (command == 'update' and not revs):
            for rev in range(repo.rev_max+1):
                handle_revision(db, command, repo, rev, verbose)
        elif command == 'update':
            if revs[0] is None:
                revs[0] = repo.rev_max
            if revs[1] is None:
                revs[1] = repo.rev_max
            revs.sort()
            for rev in range(revs[0], revs[1]+1):
                handle_revision(db, command, repo, rev, verbose, force)

def _rev2int(r):
    if r == 'HEAD':
        r = None
    else:
        r = int(r)
        if r < 0:
            raise ValueError, "invalid revision '%d'" % (r)
    return r

def usage():
    cmd = os.path.basename(sys.argv[0])
    sys.stderr.write(
"""Administer the ViewVC checkins database data for the Subversion repository
located at REPOS-PATH.

Usage: 1. %s [-v] rebuild REPOS-PATH
       2. %s [-v] update REPOS-PATH [REV[:REV2]] [--force]
       3. %s [-v] purge REPOS-PATH

1.  Rebuild the commit database information for the repository located
    at REPOS-PATH across all revisions, after first purging
    information specific to that repository (if any).

2.  Update the commit database information for the repository located
    at REPOS-PATH across all revisions or, optionally, only for the
    specified revision REV (or revision range REV:REV2).  This is just
    like rebuilding, except that, unless --force is specified, no
    commit information will be stored for commits already present in
    the database.  If a range is specified, the revisions will be
    processed in ascending order, and you may specify "HEAD" to
    indicate "the youngest revision currently in the repository".
    
3.  Purge information specific to the repository located at REPOS-PATH
    from the database.

Use the -v flag to cause this script to give progress information as it works.

""" % (cmd, cmd, cmd))
    sys.exit(1)

if __name__ == '__main__':
    verbose = 0
    force = 0
    args = sys.argv
    try:
        index = args.index('-v')
        verbose = 1
        del args[index]
    except ValueError:
        pass
    try:
        index = args.index('--force')
        force = 1
        del args[index]
    except ValueError:
        pass
        
    if len(args) < 3:
        usage()

    command = string.lower(args[1])
    if command not in ('rebuild', 'update', 'purge'):
        sys.stderr.write('ERROR: unknown command %s\n' % command)
        usage()

    revs = []
    if len(sys.argv) > 3:
        if command == 'rebuild':
            sys.stderr.write('ERROR: rebuild no longer accepts a revision '
                             'number argument.  Usage update --force.')
            usage()
        elif command != 'update':
            usage()
        try:
            revs = map(lambda x: _rev2int(x), sys.argv[3].split(':'))
            if len(revs) > 2:
                raise ValueError, "too many revisions in range"
            if len(revs) == 1:
                revs.append(revs[0])
        except ValueError:
            sys.stderr.write('ERROR: invalid revision specification "%s"\n' \
                             % sys.argv[3])
            usage()
    else:
        rev = None

    try:
        repository = vclib.svn.canonicalize_rootpath(args[2])
        repository = cvsdb.CleanRepository(os.path.abspath(repository))
        main(command, repository, revs, verbose, force)
    except KeyboardInterrupt:
        print
        print '** break **'
    sys.exit(0)