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Overview
Comment:Allow merges against an empty branch. Ticket [144180bf7db83724a9].
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Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: 4e3cd6ce4eca752496aa06048695b9669ce2a616
User & Date: drh 2010-11-08 15:13:21
Context
2010-11-08
15:33
Fix a typo in an error message in the merge logic. check-in: 370a89c8 user: drh tags: trunk
15:13
Allow merges against an empty branch. Ticket [144180bf7db83724a9]. check-in: 4e3cd6ce user: drh tags: trunk
00:40
Merge in changes from the venks-emacs branch. check-in: c01e3c17 user: drh tags: trunk
Changes
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Changes to src/merge.c.

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  if( vid==0 ){
    fossil_fatal("nothing is checked out");
  }
  mid = name_to_rid(g.argv[2]);
  if( mid==0 ){
    fossil_fatal("not a version: %s", g.argv[2]);
  }
  if( mid>1 && !db_exists("SELECT 1 FROM plink WHERE cid=%d", mid) ){
    fossil_fatal("not a version: %s", g.argv[2]);
  }
  if( pickFlag || backoutFlag ){
    pid = db_int(0, "SELECT pid FROM plink WHERE cid=%d AND isprim", mid);
    if( pid<=0 ){
      fossil_fatal("cannot find an ancestor for %s", g.argv[2]);
    }
................................................................................
    db_finalize(&q);
    pid = pivot_find();
    if( pid<=0 ){
      fossil_fatal("cannot find a common ancestor between the current"
                   "checkout and %s", g.argv[2]);
    }
  }
  if( pid>1 && !db_exists("SELECT 1 FROM plink WHERE cid=%d", pid) ){
    fossil_fatal("not a version: record #%d", mid);
  }
  vfile_check_signature(vid, 1);
  db_begin_transaction();
  undo_begin();
  load_vfile_from_rid(mid);
  load_vfile_from_rid(pid);








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  if( vid==0 ){
    fossil_fatal("nothing is checked out");
  }
  mid = name_to_rid(g.argv[2]);
  if( mid==0 ){
    fossil_fatal("not a version: %s", g.argv[2]);
  }
  if( !is_a_version(mid) ){
    fossil_fatal("not a version: %s", g.argv[2]);
  }
  if( pickFlag || backoutFlag ){
    pid = db_int(0, "SELECT pid FROM plink WHERE cid=%d AND isprim", mid);
    if( pid<=0 ){
      fossil_fatal("cannot find an ancestor for %s", g.argv[2]);
    }
................................................................................
    db_finalize(&q);
    pid = pivot_find();
    if( pid<=0 ){
      fossil_fatal("cannot find a common ancestor between the current"
                   "checkout and %s", g.argv[2]);
    }
  }
  if( !is_a_version(pid) ){
    fossil_fatal("not a version: record #%d", pid);
  }
  vfile_check_signature(vid, 1);
  db_begin_transaction();
  undo_begin();
  load_vfile_from_rid(mid);
  load_vfile_from_rid(pid);

Changes to src/pivot.c.

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    "DELETE FROM aqueue;"
    "CREATE INDEX IF NOT EXISTS aqueue_idx1 ON aqueue(pending, mtime);"
  );

  /* Insert the primary record */
  db_multi_exec( 
    "INSERT INTO aqueue(rid, mtime, pending, src)"
    "  SELECT %d, mtime, 1, 1 FROM plink WHERE cid=%d LIMIT 1",
    rid, rid
  );
}

/*
** Set a secondary file.  The primary file must be set first.  There
** must be at least one secondary but there can be more than one if
** desired.
*/
void pivot_set_secondary(int rid){
  /* Insert the primary record */
  db_multi_exec( 
    "INSERT OR IGNORE INTO aqueue(rid, mtime, pending, src)"
    "  SELECT %d, mtime, 1, 0 FROM plink WHERE cid=%d",
    rid, rid
  );
}

/*
** Find the most recent common ancestor of the primary and one of
** the secondaries.  Return its rid.  Return 0 if no common ancestor







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    "DELETE FROM aqueue;"
    "CREATE INDEX IF NOT EXISTS aqueue_idx1 ON aqueue(pending, mtime);"
  );

  /* Insert the primary record */
  db_multi_exec( 
    "INSERT INTO aqueue(rid, mtime, pending, src)"
    "  SELECT %d, mtime, 1, 1 FROM event WHERE objid=%d AND type='ci' LIMIT 1",
    rid, rid
  );
}

/*
** Set a secondary file.  The primary file must be set first.  There
** must be at least one secondary but there can be more than one if
** desired.
*/
void pivot_set_secondary(int rid){
  /* Insert the primary record */
  db_multi_exec( 
    "INSERT OR IGNORE INTO aqueue(rid, mtime, pending, src)"
    "  SELECT %d, mtime, 1, 0 FROM event WHERE objid=%d AND type='ci'",
    rid, rid
  );
}

/*
** Find the most recent common ancestor of the primary and one of
** the secondaries.  Return its rid.  Return 0 if no common ancestor