** from the local repository.
*/
#include "config.h"
#include "checkout.h"
#include <assert.h>

/*
** Check to see if there is an existing checkout that has been
** Check to see if there is an existing check-out that has been
** modified.  Return values:
**
**     0:   There is an existing checkout but it is unmodified
**     1:   There is a modified checkout - there are unsaved changes
**     0:   There is an existing check-out but it is unmodified
**     1:   There is a modified check-out - there are unsaved changes
*/
int unsaved_changes(unsigned int cksigFlags){
  int vid;
  db_must_be_within_tree();
  vid = db_lget_int("checkout",0);
  vfile_check_signature(vid, cksigFlags|CKSIG_ENOTFILE);
  return db_exists("SELECT 1 FROM vfile WHERE chnged"

  if( vid==0 ){
    fossil_fatal("no such check-in: %s", g.argv[2]);
  }
  if( !is_a_version(vid) ){
    fossil_fatal("object [%S] is not a check-in", blob_str(&uuid));
  }
  if( load_vfile_from_rid(vid) && !forceMissingFlag ){
    fossil_fatal("missing content, unable to checkout");
    fossil_fatal("missing content, unable to check out");
  };
  return vid;
}

/*
** Set or clear the vfile.isexe flag for a file.
*/

** NOTE: Most people use "fossil update" instead of "fossil checkout" for
** day-to-day operations.  If you are new to Fossil and trying to learn your
** way around, it is recommended that you become familiar with the
** "fossil update" command first.
**
** This command changes the current check-out to the version specified
** as an argument.  The command aborts if there are edited files in the
** current checkout unless the --force option is used.  The --keep option
** current check-out unless the --force option is used.  The --keep option
** leaves files on disk unchanged, except the manifest and manifest.uuid
** files.
**
** The --latest flag can be used in place of VERSION to checkout the
** The --latest flag can be used in place of VERSION to check-out the
** latest version in the repository.
**
** Options:
**    --force           Ignore edited files in the current checkout
**    --force           Ignore edited files in the current check-out
**    --keep            Only update the manifest file(s)
**    --force-missing   Force checkout even if content is missing
**    --force-missing   Force check-out even if content is missing
**    --setmtime        Set timestamps of all files to match their SCM-side
**                      times (the timestamp of the last checkin which modified
**                      times (the timestamp of the last check-in which modified
**                      them)
**
** See also: [[update]]
*/
void checkout_cmd(void){
  int forceFlag;                 /* Force checkout even if edits exist */
  int forceMissingFlag;          /* Force checkout even if missing content */
  int forceFlag;                 /* Force check-out even if edits exist */
  int forceMissingFlag;          /* Force check-out even if missing content */
  int keepFlag;                  /* Do not change any files on disk */
  int latestFlag;                /* Checkout the latest version */
  char *zVers;                   /* Version to checkout */
  int latestFlag;                /* Check out the latest version */
  char *zVers;                   /* Version to check out */
  int promptFlag;                /* True to prompt before overwriting */
  int vid, prior;
  int setmtimeFlag;              /* --setmtime.  Set mtimes on files */
  Blob cksum1, cksum1b, cksum2;

  db_must_be_within_tree();
  db_begin_transaction();

  /* We should be done with options.. */
  verify_all_options();

  if( (latestFlag!=0 && g.argc!=2) || (latestFlag==0 && g.argc!=3) ){
     usage("VERSION|--latest ?--force? ?--keep?");
  }
  if( !forceFlag && unsaved_changes(0) ){
    fossil_fatal("there are unsaved changes in the current checkout");
    fossil_fatal("there are unsaved changes in the current check-out");
  }
  if( forceFlag ){
    db_multi_exec("DELETE FROM vfile");
    prior = 0;
  }else{
    prior = db_lget_int("checkout",0);
  }

** Usage: %fossil close ?OPTIONS?
**
** The opposite of "[[open]]".  Close the current database connection.
** Require a -f or --force flag if there are unsaved changes in the
** current check-out or if there is non-empty stash.
**
** Options:
**   -f|--force  necessary to close a check out with uncommitted changes
**   -f|--force  necessary to close a check-out with uncommitted changes
**
** See also: [[open]]
*/
void close_cmd(void){
  int forceFlag = find_option("force","f",0)!=0;
  db_must_be_within_tree();

  /* We should be done with options.. */
  verify_all_options();

  if( !forceFlag && unsaved_changes(0) ){
    fossil_fatal("there are unsaved changes in the current checkout");
    fossil_fatal("there are unsaved changes in the current check-out");
  }
  if( !forceFlag
   && db_table_exists("localdb","stash")
   && db_exists("SELECT 1 FROM localdb.stash")
  ){
    fossil_fatal("closing the checkout will delete your stash");
    fossil_fatal("closing the check-out will delete your stash");
  }
  if( db_is_writeable("repository") ){
    db_unset_mprintf(1, "ckout:%q", g.zLocalRoot);
  }
  unlink_local_database(1);
  db_close(1);
  unlink_local_database(0);
}