aboutsummaryrefslogtreecommitdiffstats
path: root/MgaRepo/log.py
blob: a1ea0bf79b4ec2d66c98722700e67c22310bbf12 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
#!/usr/bin/python
from MgaRepo import Error, config, layout
from MgaRepo.svn import SVN
from MgaRepo.util import execcmd

try:
    from Cheetah.Template import Template
except ImportError:
    raise Error, "mgarepo requires the package python-cheetah"

from cStringIO import StringIO

import sys
import os
import re
import time
import locale
import glob
import tempfile
import shutil
import subprocess


locale.setlocale(locale.LC_ALL, "C")

default_template = """
#if not $releases_by_author[-1].visible
  ## Hide the first release that contains no changes. It must be a
  ## reimported package and the log gathered from misc/ already should
  ## contain a correct entry for the version-release:
  #set $releases_by_author = $releases_by_author[:-1]
#end if
#for $rel in $releases_by_author
* $rel.date $rel.author_name <$rel.author_email> $rel.version-$rel.release
+ Revision: $rel.revision
## #if not $rel.released
##+ Status: not released
## #end if
 #if not $rel.visible
+ rebuild (emptylog)
 #end if
 #for $rev in $rel.release_revisions
  #for $line in $rev.lines
$line
  #end for
 #end for

 #for $author in $rel.authors
  #if not $author.visible
    #continue
  #end if
  ##alternatively, one could use:
  ###if $author.email == "root"
  ## #continue
  ###end if
  + $author.name <$author.email>
  #for $rev in $author.revisions
    #for $line in $rev.lines
    $line
    #end for
  #end for

 #end for
#end for
"""

def getrelease(pkgdirurl, rev=None, macros=[], exported=None):
    """Tries to obtain the version-release of the package for a 
    yet-not-markrelease revision of the package.

    Is here where things should be changed if "automatic release increasing" 
    will be used.
    """
    from MgaRepo.rpmutil import rpm_macros_defs
    svn = SVN()
    pkgcurrenturl = os.path.join(pkgdirurl, "current")
    specurl = os.path.join(pkgcurrenturl, "SPECS")
    if exported is None:
        tmpdir = tempfile.mktemp()
        svn.export(specurl, tmpdir, rev=rev)
    else:
        tmpdir = os.path.join(exported, "SPECS")
    try:
        found = glob.glob(os.path.join(tmpdir, "*.spec"))
        if not found:
            raise Error, "no .spec file found inside %s" % specurl
        specpath = found[0]
        options = rpm_macros_defs(macros)
        command = (("rpm -q --qf '%%{EPOCH}:%%{VERSION}-%%{RELEASE}\n' "
                   "--specfile %s %s") %
                   (specpath, options))
        pipe = subprocess.Popen(command, stdout=subprocess.PIPE,
                stderr=subprocess.PIPE, shell=True)
        pipe.wait()
        output = pipe.stdout.read()
        error = pipe.stderr.read()
        if pipe.returncode != 0:
            raise Error, "Error in command %s: %s" % (command, error)
        releases = output.split()
        try:
            epoch, vr = releases[0].split(":", 1)
            version, release = vr.split("-", 1)
        except ValueError:
            raise Error, "Invalid command output: %s: %s" % \
                    (command, output)
        #XXX check if this is the right way:
        if epoch == "(none)":
            ev = version
        else:
            ev = epoch + ":" + version
        return ev, release
    finally:
        if exported is None and os.path.isdir(tmpdir):
            shutil.rmtree(tmpdir)
            
class _Revision:
    lines = []
    date = None
    raw_date = None
    revision = None
    author_name = None
    author_email = None

    def __init__(self, **kwargs):
        self.__dict__.update(kwargs)

    def __repr__(self):
        lines = repr(self.lines)[:30] + "...]" 
        line = "<_Revision %d author=%r date=%r lines=%s>" % \
                    (self.revision, self.author, self.date, lines)
        return line


class _Release(_Revision):
    version = None
    release = None
    revisions = []
    release_revisions = []
    authors = []
    visible = False

    def __init__(self, **kwargs):
        self.revisions = []
        _Revision.__init__(self, **kwargs)

    def __repr__(self):
        line = "<_Release v=%s r=%s revs=%r>" % \
                    (self.version, self.release, self.revisions)
        return line

unescaped_macro_pat = re.compile(r"(^|[^%])%([^%])")

def escape_macros(text):
    escaped = unescaped_macro_pat.sub("\\1%%\\2", text)
    return escaped

def format_lines(lines):
    first = 1
    entrylines = []
    perexpr = re.compile(r"([^%])%([^%])")
    for line in lines:
        if line:
            line = escape_macros(line)
            if first:
                first = 0
                line = line.lstrip()
                if line[0] != "-":
                    nextline = "- " + line
                else:
                    nextline = line
            elif line[0] != " " and line[0] != "-":
                nextline = "  " + line
            else:
                nextline = line
            if nextline not in entrylines:
                entrylines.append(nextline)
    return entrylines


class _Author:
    name = None
    email = None
    revisions = None
    visible = False


def group_releases_by_author(releases):
    allauthors = []
    grouped = []
    for release in releases:

        # group revisions of the release by author
        authors = {}
        latest = None
        for revision in release.revisions:
            authors.setdefault(revision.author, []).append(revision)

        # create _Authors and sort them by their latest revisions
        decorated = []
        for authorname, revs in authors.iteritems():
            author = _Author()
            author.name = revs[0].author_name
            author.email = revs[0].author_email
            author.revisions = revs
            # #41117: mark those authors without visible messages
            author.visible = bool(sum(len(rev.lines) for rev in revs))
            revlatest = author.revisions[0]
            # keep the latest revision even for completely invisible
            # authors (below)
            if latest is None or revlatest.revision > latest.revision:
                latest = revlatest
            if not author.visible:
                # only sort those visible authors, invisible ones are used
                # only in "latest"
                continue
            decorated.append((revlatest.revision, author))
        decorated.sort(reverse=1)

        if release.visible:
            release.authors = [t[1] for t in decorated]
            firstrel, release.authors = release.authors[0], release.authors[1:]
            release.author_name = firstrel.name
            release.author_email = firstrel.email
            release.release_revisions = firstrel.revisions
        else:
            # we don't care about other possible authors in completely
            # invisible releases
            firstrev = release.revisions[0]
            release.author_name = firstrev.author_name
            release.author_email = firstrev.author_email
            release.raw_date = firstrev.raw_date
            release.date = firstrev.date

        release.date = latest.date
        release.raw_date = latest.raw_date
        release.revision = latest.revision

        grouped.append(release)

    return grouped


def group_revisions_by_author(currentlog):
    revisions = []
    last_author = None
    for entry in currentlog:
        revision = _Revision()
        revision.lines = format_lines(entry.lines)
        revision.raw_date = entry.date
        revision.date = parse_raw_date(entry.date)
        revision.revision = entry.revision
        if entry.author == last_author:
            revisions[-1].revisions.append(revision)
        else:
            author = _Author()
            author.name, author.email = get_author_name(entry.author)
            author.revisions = [revision]
            revisions.append(author)
        last_author = entry.author
    return revisions


emailpat = re.compile("(?P<name>.*?)\s*<(?P<email>.*?)>")

def get_author_name(author):
    found = emailpat.match(config.get("users", author, author))
    name = ((found and found.group("name")) or author)
    email = ((found and found.group("email")) or author)
    return name, email

def parse_raw_date(rawdate):
    return time.strftime("%a %b %d %Y", rawdate)

def filter_log_lines(lines):
    # Lines in commit messages beginning with CLOG will be the only shown
    # in the changelog. These lines will have the CLOG token and blanks
    # stripped from the beginning.
    onlylines = None
    clogstr = config.get("log", "unignore-string")
    if clogstr:
        clogre = re.compile(r"(^%s[^ \t]?[ \t])" % clogstr)
        onlylines = [clogre.sub("", line)
                for line in lines if line.startswith(clogstr)]
    if onlylines:
        filtered = onlylines
    else:
        # Lines in commit messages containing SILENT at any position will be
        # skipped; commits with their log messages beggining with SILENT in the
        # first positionj of the first line will have all lines ignored.
        ignstr = config.get("log", "ignore-string", "SILENT")
        if len(lines) and lines[0].startswith(ignstr):
            return []
        filtered = [line for line in lines if ignstr not in line]
    return filtered


def make_release(author=None, revision=None, date=None, lines=None,
        entries=[], released=True, version=None, release=None):
    rel = _Release()
    rel.author = author
    if author:
        rel.author_name, rel.author_email = get_author_name(author)
    rel.revision = revision
    rel.version = version
    rel.release = release
    rel.date = (date and parse_raw_date(date)) or None
    rel.lines = lines
    rel.released = released
    rel.visible = False
    for entry in entries:
        lines = filter_log_lines(entry.lines)
        revision = _Revision()
        revision.revision = entry.revision
        revision.lines = format_lines(lines)
        if revision.lines:
            rel.visible = True
        revision.date = parse_raw_date(entry.date)
        revision.raw_date = entry.date
        revision.author = entry.author
        (revision.author_name, revision.author_email) = \
                get_author_name(entry.author)
        rel.revisions.append(revision)
    return rel


def dump_file(releases, currentlog=None, template=None):
    templpath = template or config.get("template", "path",
            "/usr/share/mgarepo/default.chlog")
    params = {}
    if templpath is None or not os.path.exists(templpath):
        params["source"] = default_template
        sys.stderr.write("warning: %s not found. using built-in template.\n"%
                templpath)
    else:
        params["file"] = templpath
    releases_author = group_releases_by_author(releases)
    revisions_author = group_revisions_by_author(currentlog)
    params["searchList"] = [{"releases_by_author" : releases_author,
                             "releases" : releases,
                             "revisions_by_author": revisions_author}]
    t = Template(**params)
    return t.respond()


class InvalidEntryError(Exception):
    pass

def parse_repsys_entry(revlog):
    # parse entries in the format:
    # %repsys <operation>
    # key: value
    # ..
    # <newline>
    # <comments>
    #
    if len(revlog.lines) == 0 or not revlog.lines[0].startswith("%repsys"):
        raise InvalidEntryError
    try:       
        data = {"operation" : revlog.lines[0].split()[1]}
    except IndexError:
        raise InvalidEntryError
    for line in revlog.lines[1:]:
        if not line:
            break
        try:
            key, value = line.split(":", 1)
        except ValueError:
            raise InvalidEntryError
        data[key.strip().lower()] = value.strip() # ???
    return data
        

def get_revision_offset():
    try:
        revoffset = config.getint("log", "revision-offset", 0)
    except (ValueError, TypeError):
        raise Error, ("Invalid revision-offset number in configuration "
                      "file(s).")
    return revoffset or 0

oldmsgpat = re.compile(
        r"Copying release (?P<rel>[^\s]+) to (?P<dir>[^\s]+) directory\.")

def parse_markrelease_log(relentry):
    if not ((relentry.lines and oldmsgpat.match(relentry.lines[0]) \
            or parse_repsys_entry(relentry))):
        raise InvalidEntryError
    from_rev = None
    path = None
    for changed in relentry.changed:
        if changed["action"] == "A" and changed["from_rev"]:
            from_rev = changed["from_rev"]
            path = changed["path"]
            break
    else:
        raise InvalidEntryError
    # get the version and release from the names in the path, do not relay
    # on log messages
    version, release = path.rsplit(os.path.sep, 3)[-2:]
    return version, release, from_rev


def svn2rpm(pkgdirurl, rev=None, size=None, submit=False,
        template=None, macros=[], exported=None):
    concat = config.get("log", "concat", "").split()
    revoffset = get_revision_offset()
    svn = SVN()
    pkgreleasesurl = layout.checkout_url(pkgdirurl, releases=True)
    pkgcurrenturl = layout.checkout_url(pkgdirurl)
    releaseslog = svn.log(pkgreleasesurl, noerror=1)
    currentlog = svn.log(pkgcurrenturl, limit=size, start=rev,
            end=revoffset)

    # sort releases by copyfrom-revision, so that markreleases for same
    # revisions won't look empty
    releasesdata = []
    if releaseslog:
        for relentry in releaseslog[::-1]:
            try:
                (version, release, relrevision) = \
                        parse_markrelease_log(relentry)
            except InvalidEntryError:
                continue
            releasesdata.append((relrevision, -relentry.revision, relentry, 
                version, release))
        releasesdata.sort()

    # collect valid releases using the versions provided by the changes and
    # the packages
    prevrevision = 0
    releases = []
    for (relrevision, dummy, relentry, version, release) in releasesdata:
        if prevrevision == relrevision: 
            # ignore older markrelease of the same revision, since they
            # will have no history
            continue
        entries = [entry for entry in currentlog
                    if relrevision >= entry.revision and
                      (prevrevision < entry.revision)]
        if not entries:
            #XXX probably a forced release, without commits in current/,
            # check if this is the right behavior
            sys.stderr.write("warning: skipping (possible) release "
                    "%s-%s@%s, no commits since previous markrelease (r%r)\n" %
                    (version, release, relrevision, prevrevision))
            continue

        release = make_release(author=relentry.author,
                revision=relentry.revision, date=relentry.date,
                lines=relentry.lines, entries=entries,
                version=version, release=release)
        releases.append(release)
        prevrevision = relrevision
            
    # look for commits that have been not submitted (released) yet
    # this is done by getting all log entries newer (greater revision no.)
    # than releasesdata[-1] (in the case it exists)
    if releasesdata:
        latest_revision = releasesdata[-1][0] # the latest copied rev
    else:
        latest_revision = 0
    notsubmitted = [entry for entry in currentlog 
                    if entry.revision > latest_revision]
    if notsubmitted:
        # if they are not submitted yet, what we have to do is to add
        # a release/version number from getrelease()
        version, release = getrelease(pkgdirurl, macros=macros,
                exported=exported)
        toprelease = make_release(entries=notsubmitted, released=False,
                        version=version, release=release)
        releases.append(toprelease)

    data = dump_file(releases[::-1], currentlog=currentlog, template=template)
    return data

def _split_changelog(stream):
    current = None
    count = 0
    def finish(entry):
        lines = entry[2]
        # strip newlines at the end
        for i in xrange(len(lines)-1, -1, -1):
            if lines[i] != "\n":
                break
            del lines[i]
        return entry
    for line in stream:
        if line.startswith("*"):
            if current:
                yield finish(current)
            fields = line.split()
            rawdate = " ".join(fields[:5])
            try:
                date = time.strptime(rawdate, "* %a %b %d %Y")
            except ValueError, e:
                raise Error, "failed to parse spec changelog: %s" % e
            curlines = [line]
            current = (date, count, curlines)
            # count used to ensure stable sorting when changelog entries
            # have the same date, otherwise it would also compare the
            # changelog lines
            count -= 1
        elif current:
            curlines.append(line)
        else:
            pass # not good, but ignore
    if current:
        yield finish(current)

def sort_changelog(stream):
    entries = _split_changelog(stream)
    log = StringIO()
    for time, count, elines in sorted(entries, reverse=True):
        log.writelines(elines)
        log.write("\n")
    return log

def split_spec_changelog(stream):
    chlog = StringIO()
    spec = StringIO()
    found = 0
    visible = 0
    for line in stream:
        if line.startswith("%changelog"):
            found = 1
        elif not found:
            spec.write(line)
        elif found:
            if line.strip():
                visible = 1
            chlog.write(line)
        elif line.startswith("%"):
            found = 0
            spec.write(line)
    spec.seek(0)
    if not visible:
        # when there are only blanks in the changelog, make it empty
        chlog = StringIO()
    return spec, chlog

def get_old_log(pkgdirurl):
    chlog = StringIO()
    oldurl = config.get("log", "oldurl")
    if oldurl:
        svn = SVN()
        tmpdir = tempfile.mktemp()
        try:
            if oldurl == '.' or oldurl.startswith('./'):
                pkgoldurl = os.path.join(pkgdirurl, oldurl)
            else:
                pkgname = layout.package_name(pkgdirurl)
                pkgoldurl = os.path.join(oldurl, pkgname)
            try:
                # we're using HEAD here because fixes in misc/ (oldurl) may
                # be newer than packages' last changed revision.
                svn.export(pkgoldurl, tmpdir)
            except Error:
                pass
            else:
                logfile = os.path.join(tmpdir, "log")
                if os.path.isfile(logfile):
                    file = open(logfile)
                    chlog.write("\n") # TODO needed?
                    log = file.read()
                    log = escape_macros(log)
                    chlog.write(log)
                    file.close()
        finally:
            if os.path.isdir(tmpdir):
                shutil.rmtree(tmpdir)
    chlog.seek(0)
    return chlog

def get_changelog(pkgdirurl, another=None, svn=True, rev=None, size=None,
        submit=False, sort=False, template=None, macros=[], exported=None,
        oldlog=False):
    """Generates the changelog for a given package URL

    @another:   a stream with the contents of a changelog to be merged with
                the one generated
    @svn:       enable changelog from svn
    @rev:       generate the changelog with the changes up to the given
                revision
    @size:      the number of revisions to be used (as in svn log --limit)
    @submit:    defines whether the latest unreleased log entries should have
                the version parsed from the spec file
    @sort:      should changelog entries be reparsed and sorted after appending
                the oldlog?
    @template:  the path to the cheetah template used to generate the
                changelog from svn
    @macros:    a list of tuples containing macros to be defined when
                parsing the version in the changelog
    @exported:  the path of a directory containing an already existing
                checkout of the package, so that the spec file can be
                parsed from there
    @oldlog:    if set it will try to append the old changelog file defined
                in oldurl in mgarepo.conf
    """
    newlog = StringIO()
    if svn:
        rawsvnlog = svn2rpm(pkgdirurl, rev=rev, size=size, submit=submit,
                template=template, macros=macros, exported=exported)
        newlog.write(rawsvnlog)
    if another:
        newlog.writelines(another)
    if oldlog:
        newlog.writelines(get_old_log(pkgdirurl))
    if sort:
        newlog.seek(0)
        newlog = sort_changelog(newlog)
    newlog.seek(0)
    return newlog

def specfile_svn2rpm(pkgdirurl, specfile, rev=None, size=None,
        submit=False, sort=False, template=None, macros=[], exported=None):
    fi = open(specfile)
    spec, oldchlog = split_spec_changelog(fi)
    fi.close()
    another = None
    if config.getbool("log", "merge-spec", False):
        another = oldchlog
    sort = sort or config.getbool("log", "sort", False)
    chlog = get_changelog(pkgdirurl, another=another, rev=rev, size=size,
                submit=submit, sort=sort, template=template, macros=macros,
                exported=exported, oldlog=True)
    fo = open(specfile, "w")
    fo.writelines(spec)
    fo.write("\n\n%changelog\n")
    fo.writelines(chlog)
    fo.close()

if __name__ == "__main__":
    l = svn2rpm(sys.argv[1])
    print l

# vim:et:ts=4:sw=4