Public Methods | |
| Use* | operate (Use* ref_use, Use* new_use) |
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Reimplemented from VersionSelector. Definition at line 2523 of file cmt_use.cxx. 02524 {
02525 Use* selected = ref_use;
02526
02527 int old_v = -1;
02528 int old_r = -1;
02529 int old_p = -1;
02530 cmt_string old_pp;
02531
02532 int new_v = -1;
02533 int new_r = -1;
02534 int new_p = -1;
02535 cmt_string new_pp;
02536
02537 int alias_v = -1;
02538 int alias_r = -1;
02539 int alias_p = -1;
02540 cmt_string alias_pp;
02541
02542 enum { no_alias, new_has_alias, ref_has_alias } has_alias = no_alias;
02543
02544 CmtSystem::is_version_directory (ref_use->version, old_v, old_r, old_p);
02545 old_pp = ref_use->path;
02546
02547 CmtSystem::is_version_directory (new_use->version, new_v, new_r, new_p);
02548 new_pp = new_use->path;
02549
02550 if (new_use->version_alias != "")
02551 {
02552 has_alias = new_has_alias;
02553 CmtSystem::is_version_directory (new_use->version_alias,
02554 alias_v, alias_r, alias_p);
02555 alias_pp = new_use->path_alias;
02556 }
02557 else if (ref_use->version_alias != "")
02558 {
02559 has_alias = ref_has_alias;
02560 CmtSystem::is_version_directory (ref_use->version_alias,
02561 alias_v, alias_r, alias_p);
02562 alias_pp = ref_use->path_alias;
02563 }
02564
02565 ref_use->undiscard ();
02566 new_use->undiscard ();
02567
02568 if (new_v != old_v)
02569 {
02570 if (has_alias != no_alias)
02571 {
02572 if (has_alias == new_has_alias)
02573 {
02574 new_v = alias_v;
02575 new_r = alias_r;
02576 new_p = alias_p;
02577 new_pp = alias_pp;
02578 }
02579 else if (has_alias == ref_has_alias)
02580 {
02581 old_v = alias_v;
02582 old_r = alias_r;
02583 old_p = alias_p;
02584 old_pp = alias_pp;
02585 }
02586 }
02587 }
02588
02589 if (new_v < old_v)
02590 {
02591 if (!Cmt::get_quiet ())
02592 {
02593 cout << "# Keep version " << ref_use->version <<
02594 " of package " << ref_use->package <<
02595 " (ignore version " << new_use->version << ")" <<
02596 endl;
02597 }
02598
02599 if (ref_use != new_use) new_use->discard ();
02600 }
02601 else if (new_v > old_v)
02602 {
02603 if (!Cmt::get_quiet ())
02604 {
02605 cout << "# Select version " << new_use->version <<
02606 " of package " << ref_use->package <<
02607 " instead of existing " << ref_use->version <<
02608 endl;
02609 }
02610
02611 if (ref_use != new_use) ref_use->discard ();
02612 selected = new_use;
02613 selected->done = false; // Will read the new requirements
02614 }
02615 else if (new_r < old_r)
02616 {
02617 if (!Cmt::get_quiet ())
02618 {
02619 cout << "# keep release " << ref_use->version <<
02620 " of package " << ref_use->package <<
02621 " (ignore release " << new_use->version << ")" <<
02622 endl;
02623 }
02624
02625 if (ref_use != new_use) new_use->discard ();
02626 }
02627 else if (new_r > old_r)
02628 {
02629 if (!Cmt::get_quiet ())
02630 {
02631 cout << "# Select release " << new_use->version <<
02632 " of package " << ref_use->package <<
02633 " instead of existing " << ref_use->version <<
02634 endl;
02635 }
02636
02637 if (ref_use != new_use) ref_use->discard ();
02638 selected = new_use;
02639 selected->done = false; // Will read the new requirements
02640 }
02641 else if (new_p > old_p)
02642 {
02643 if (!Cmt::get_quiet ())
02644 {
02645 cout << "# Select patch " << new_use->version <<
02646 " of package " << ref_use->package <<
02647 " instead of existing " << ref_use->version <<
02648 endl;
02649 }
02650
02651 if (ref_use != new_use) ref_use->discard ();
02652 selected = new_use;
02653 selected->done = false; // Will read the new requirements
02654 }
02655 else if (new_pp != old_pp) // same version-r-p but from different path
02656 {
02657 if (ref_use != new_use) ref_use->discard ();
02658 selected = new_use;
02659 selected->done = false; // Will read the new requirements
02660 }
02661
02662 return (selected);
02663 }
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1.2.3 written by Dimitri van Heesch,
© 1997-2000