## -*- tcl -*-
# # ## ### ##### ######## ############# #####################
## Copyright (c) 2007 Andreas Kupries.
#
# This software is licensed as described in the file LICENSE, which
# you should have received as part of this distribution.
#
# This software consists of voluntary contributions made by many
# individuals.  For exact contribution history, see the revision
# history and logs, available at http://fossil-scm.hwaci.com/fossil
# # ## ### ##### ######## ############# #####################

## Pass II. This pass parses the colected rcs archives and extracts
## Pass II. This pass parses the collected rcs archives and extracts
## all the information they contain (revisions, and symbols).

# # ## ### ##### ######## ############# #####################
## Requirements

package require Tcl 8.4                             ; # Required runtime.
package require snit                                ; # OO system.
package require fileutil::traverse                  ; # Directory traversal.
package require fileutil                            ; # File & path utilities.
package require vc::tools::trouble                  ; # Error reporting.
package require vc::tools::log                      ; # User feedback.
package require vc::fossil::import::cvs::pass       ; # Pass management.
package require vc::fossil::import::cvs::repository ; # Repository management.
package require vc::fossil::import::cvs::state      ; # State storage.
package require vc::rcs::parser                     ; # Rcs archive data extraction.

	#	pBranch <- pSymbol, pLineOfDevelopment
	#	pTag    <- pSymbol, pLineOfDevelopment

	state writing symbol {
	    sid  INTEGER  NOT NULL  PRIMARY KEY AUTOINCREMENT,
	    pid  INTEGER  NOT NULL  REFERENCES project,  -- Project the symbol belongs to
	    name TEXT     NOT NULL,
	    type INTEGER  NOT NULL,                      -- enum { tag = 1, branch, undefined }
	    type INTEGER  NOT NULL  REFERENCES symtype,  -- enum { excluded = 0, tag, branch, undefined }

	    tag_count    INTEGER  NOT NULL, -- How often the symbol is used as tag.
	    branch_count INTEGER  NOT NULL, -- How often the symbol is used as branch
	    commit_count INTEGER  NOT NULL, -- How often a file was committed on the symbol

	    UNIQUE (pid, name) -- Symbols are unique within the project
	}

	    -- a possible parent in some file, and how often.

	    sid INTEGER  NOT NULL  REFERENCES symbol, -- 
	    pid INTEGER  NOT NULL  REFERENCES symbol, -- Possible parent of sid
	    n   INTEGER  NOT NULL,                    -- How often pid can act as parent.
	    UNIQUE (sid, pid)
	}

	state writing symtype {
	    tid   INTEGER  NOT NULL  PRIMARY KEY,
	    name  TEXT     NOT NULL,
	    UNIQUE (name)
	}
	state run {
	    INSERT INTO symtype VALUES (0,'excluded');
	    INSERT INTO symtype VALUES (1,'tag');
	    INSERT INTO symtype VALUES (2,'branch');
	    INSERT INTO symtype VALUES (3,'undefined');
	}

	state writing meta {
	    -- Meta data of revisions. See revision.mid for the
	    -- reference. Many revisions can share meta data. This is
	    -- actually one of the criterions used to sort revisions
	    -- into changesets.

	    text TEXT     NOT NULL  UNIQUE
	}

	return
    }

    typemethod load {} {
	state reading symbol
	# TODO

	repository loadsymbols
	return
    }

    typemethod run {} {
	# Pass manager interface. Executed to perform the
	# functionality of the pass.

	state discard revision
	state discard tag
	state discard branch
	state discard symbol
	state discard blocker
	state discard parent
	state discard symtype
	state discard meta
	state discard author
	state discard cmessage
	return
    }

    proc Paranoia {} {