From: Alexey Tourbin <at@altlinux.ru> To: ALT Devel discussion list <devel@lists.altlinux.org> Subject: Re: [devel] gb-task-repo-vercheck (vercheck): Use rpmevrcmp Date: Sat, 28 Feb 2009 17:17:25 +0300 Message-ID: <20090228141725.GC9851@altlinux.org> (raw) In-Reply-To: <20090216232939.GA11469@wo.int.altlinux.org> [-- Attachment #1: Type: text/plain, Size: 2222 bytes --] On Tue, Feb 17, 2009 at 02:29:39AM +0300, Dmitry V. Levin wrote: > On Mon, Feb 16, 2009 at 04:05:08PM +0300, Alexey Tourbin wrote: > > On Mon, Feb 16, 2009 at 03:23:12PM +0300, Dmitry V. Levin wrote: > > > On Mon, Feb 16, 2009 at 11:16:51AM +0300, Alexey Tourbin wrote: > > > [...] > > > > 0:1.0-alt1 cmp 1.0-alt2 should yield 1. > > > > > > Why? > > > > > > > Zero serial is greater than no serial. > > > > > > Why? > > > > This is because how rpm-4.0 works. > > > > lib/psm.c: > > 72 int rpmVersionCompare(Header first, Header second) > > If rpmVersionCompare() works this way, why rpmEVRcmp() doesn't work the > same way? That's because rpmEVRcmp() is botched. rpmdb/rpmvercmp.c: 155 /* Compare {A,B} [epoch:]version[-release] */ 156 int 157 rpmEVRcmp(const char * const aE, const char * const aV, const char * const aR, 158 const char * const aDepend, 159 const char * const bE, const char * const bV, const char * const bR, 160 const char * const bDepend) 161 { 162 int sense = 0; 163 164 rpmMessage(RPMMESS_DEBUG, "cmp e=%s, v=%s, r=%s\n and e=%s, v=%s, r=%s\n ", 165 aE, aV, aR, bE, bV, bR); 166 167 168 if (aE && *aE && bE && *bE) 169 sense = rpmvercmp(aE, bE); 170 else if (aE && *aE && atol(aE) > 0) { 171 /* XXX legacy epoch-less requires/conflicts compatibility */ 172 rpmMessage(RPMMESS_DEBUG, _("the \"B\" dependency needs an epoch (assuming same as \"A\")\n\tA %s\tB %s\n"), 173 aDepend, bDepend); 174 sense = 0; 175 } else if (bE && *bE && atol(bE) > 0) 176 sense = -1; 177 178 if (sense == 0) { 179 sense = rpmvercmp(aV, bV); 180 if (sense == 0 && aR && *aR && bR && *bR) { 181 sense = rpmvercmp(aR, bR); 182 } 183 } 184 185 return sense; 186 } That is, rpmEVRcmp() does not exercise quite the same logic as rpmVersionCompare(). > Let's fix librpm rather than multiply workarounds. Prepending zero serial was wrong anyway. [-- Attachment #2: Type: application/pgp-signature, Size: 197 bytes --]
next prev parent reply other threads:[~2009-02-28 14:17 UTC|newest] Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top 2009-02-16 8:16 Alexey Tourbin 2009-02-16 12:23 ` Dmitry V. Levin 2009-02-16 13:05 ` Alexey Tourbin 2009-02-16 23:29 ` Dmitry V. Levin 2009-02-28 14:17 ` Alexey Tourbin [this message] 2009-02-28 22:37 ` Dmitry V. Levin 2009-02-28 17:36 ` Alexey Tourbin
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