hgext/infinitepush/schema.sql

absorb: preserve changesets which were already empty

Most commands in Mercurial (commit, rebase, absorb itself) don’t create empty
changesets or drop them if they become empty. If there’s a changeset that’s
empty, it must be a deliberate choice of the user. At least it shouldn’t be
absorb’s responsibility to prune them. The fact that changesets that became
empty during absorb are pruned, is unaffected by this.

This case was found while writing patches which make it possible to configure
absorb and rebase to not drop empty changesets. Even without having such config
set, I think it’s valuable to preserve changesets which were already empty.

CREATE TABLE `bookmarkstonode` (
  `node` varbinary(64) NOT NULL,
  `bookmark` varbinary(512) NOT NULL,
  `reponame` varbinary(255) NOT NULL,
  PRIMARY KEY (`reponame`,`bookmark`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

CREATE TABLE `bundles` (
  `bundle` varbinary(512) NOT NULL,
  `reponame` varbinary(255) NOT NULL,
  PRIMARY KEY (`bundle`,`reponame`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

CREATE TABLE `nodestobundle` (
  `node` varbinary(64) NOT NULL,
  `bundle` varbinary(512) NOT NULL,
  `reponame` varbinary(255) NOT NULL,
  PRIMARY KEY (`node`,`reponame`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

CREATE TABLE `nodesmetadata` (
  `node` varbinary(64) NOT NULL,
  `message` mediumblob NOT NULL,
  `p1` varbinary(64) NOT NULL,
  `p2` varbinary(64) DEFAULT NULL,
  `author` varbinary(255) NOT NULL,
  `committer` varbinary(255) DEFAULT NULL,
  `author_date` bigint(20) NOT NULL,
  `committer_date` bigint(20) DEFAULT NULL,
  `reponame` varbinary(255) NOT NULL,
  `optional_json_metadata` mediumblob,
  PRIMARY KEY (`reponame`,`node`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;