Fossil

/*
** COMMAND: add
**
** Usage: %fossil add ?OPTIONS? FILE1 ?FILE2 ...?
**
** Make arrangements to add one or more files or directories to the
** current checkout at the next commit.
**
** When adding files or directories recursively, filenames that begin
** with "." are excluded by default.  To include such files, add
** the "--dotfiles" option to the command-line.
**
** The --ignore and --clean options are comma-separated lists of glob patterns
** for files to be excluded.  Example:  '*.o,*.obj,*.exe'  If the --ignore

**                            than --verbose and --dry-run may be used
**                            with --reset.
**
** The following options are only valid with --reset:
**    -v|--verbose            Outputs information about each --reset file.
**    -n|--dry-run            Display instead of run actions.
**
** See also: addremove, rm
*/
void add_cmd(void){
  int i;                     /* Loop counter */
  int vid;                   /* Currently checked out version */
  int nRoot;                 /* Full path characters in g.zLocalRoot */
  const char *zCleanFlag;    /* The --clean option or clean-glob setting */
  const char *zIgnoreFlag;   /* The --ignore option or ignore-glob setting */

**                           that all newly-rm'd (but not yet committed)
**                           files are no longer removed. No flags other
**                           than --verbose or --dry-run may be used with
**                           --reset.
**   --verbose|-v            Outputs information about each --reset file.
**                           Only usable with --reset.
**
** See also: addremove, add
*/
void delete_cmd(void){
  int i;
  int removeFiles;
  int dryRunFlag = find_option("dry-run","n",0)!=0;
  int softFlag;
  int hardFlag;

}

/*
** COMMAND: addremove
**
** Usage: %fossil addremove ?OPTIONS?
**
** Do all necessary "add" and "rm" commands to synchronize the repository
** with the content of the working checkout:
**
**  *  All files in the checkout but not in the repository (that is,
**     all files displayed using the "extras" command) are added as
**     if by the "add" command.
**
**  *  All files in the repository but missing from the checkout (that is,
**     all files that show as MISSING with the "status" command) are
**     removed as if by the "rm" command.
**
** The command does not "commit".  You must run the "commit" separately
** as a separate step.
**
** Files and directories whose names begin with "." are ignored unless
** the --dotfiles option is used.
**
** The --ignore option overrides the "ignore-glob" setting, as do the
** --case-sensitive option with the "case-sensitive" setting and the

**                           files are no longer added and all newly-removed
**                           (but not yet committed) files are no longer
**                           removed. No flags other than --verbose and
**                           --dry-run may be used with --reset.
**   --verbose|-v            Outputs information about each --reset file.
**                           Only usable with --reset.
**
** See also: add, rm
*/
void addremove_cmd(void){
  Blob path;
  const char *zCleanFlag;
  const char *zIgnoreFlag;
  unsigned scanFlags;
  int dryRunFlag = find_option("dry-run","n",0)!=0;

**    or: %fossil mv|rename OLDNAME... DIR
**
** Move or rename one or more files or directories within the repository tree.
** You can either rename a file or directory or move it to another subdirectory.
**
** The 'mv' command does NOT normally rename or move the files on disk.
** This command merely records the fact that file names have changed so
** that appropriate notations can be made at the next commit/check-in.
** However, the default behavior of this command may be overridden via
** command line options listed below and/or the 'mv-rm-files' setting.
**
** The 'rename' command never renames or moves files on disk, even when the
** command line options and/or the 'mv-rm-files' setting would otherwise
** require it to do so.
**
** WARNING: If the "--hard" option is specified -OR- the "mv-rm-files"
**          setting is non-zero, files WILL BE renamed or moved on disk
**          as well.  This does NOT apply to the 'rename' command.
**
** Options:
**   --soft                  Skip moving files within the checkout.
**                           This supersedes the --hard option.
**   --hard                  Move files within the checkout.
**   --case-sensitive <BOOL> Override the case-sensitive setting.
**   -n|--dry-run            If given, display instead of run actions.
**
** See also: changes, status
*/
void mv_cmd(void){
  int i;
  int vid;
  int moveFiles;
  int dryRunFlag;
  int softFlag;

}

/*
** COMMAND: bisect
**
** Usage: %fossil bisect SUBCOMMAND ...
**
** Run various subcommands useful for searching for bugs.

**
** > fossil bisect bad ?VERSION?
**
**       Identify version VERSION as non-working.  If VERSION is omitted,
**       the current checkout is marked as non-working.
**
** > fossil bisect good ?VERSION?

**        replaced by a space, and it may also name a timezone offset
**        from UTC as "-HH:MM" (westward) or "+HH:MM" (eastward).
**        Either no timezone suffix or "Z" means UTC.
**
** Options valid for all subcommands:
**
**    -R|--repository FILE       Run commands on repository FILE
**
** Summary:
**    fossil branch current
**    fossil branch info BRANCH-NAME
**    fossil branch [list|ls]
**    fossil branch new BRANCH-NAME BASIS
*/
void branch_cmd(void){
  int n;
  const char *zCmd = "list";
  db_find_and_open_repository(0, 0);
  if( g.argc>=3 ) zCmd = g.argv[2];
  n = strlen(zCmd);

**
** > fossil bundle purge BUNDLE
**
**      Remove from the repository all files that are used exclusively
**      by check-ins in BUNDLE.  This has the effect of undoing a
**      "fossil bundle import".
**
** SUMMARY:
**   fossil bundle append BUNDLE FILE...              Add files to BUNDLE
**   fossil bundle cat BUNDLE HASH...                 Extract file from BUNDLE
**   fossil bundle export BUNDLE ?OPTIONS?            Create a new BUNDLE
**          --branch BRANCH --from TAG1 --to TAG2       Check-ins to include
**          --checkin TAG                               Use only check-in TAG
**          --standalone                                Omit dependencies
**   fossil bundle extend BUNDLE                      Update with newer content
**   fossil bundle import BUNDLE ?OPTIONS?            Import a bundle
**          --publish                                   Publish the import
**          --force                                     Cross-repo import
**   fossil bundle ls BUNDLE                          List content of a bundle
**   fossil bundle purge BUNDLE                       Undo an import
**
** See also: publish
*/
void bundle_cmd(void){
  const char *zSubcmd;
  int n;
  if( g.argc<4 ) usage("SUBCOMMAND BUNDLE ?OPTIONS?");
  zSubcmd = g.argv[2];
  db_find_and_open_repository(0,0);

**    --unchanged       Display unchanged files.
**    --all             Display all managed files, i.e. all of the above.
**    --extra           Display unmanaged files.
**    --differ          Display modified and extra files.
**    --merge           Display merge contributors.
**    --no-merge        Do not display merge contributors.
**
** See also: extras, ls
*/
void status_cmd(void){
  /* Affirmative and negative flag option tables. */
  static const struct {
    const char *option; /* Flag name. */
    unsigned mask;      /* Flag bits. */
  } flagDefs[] = {

** Options:
**   --age                 Show when each file was committed.
**   -v|--verbose          Provide extra information about each file.
**   -t                    Sort output in time order.
**   -r VERSION            The specific check-in to list.
**   -R|--repository FILE  Extract info from repository FILE.
**
** See also: changes, extras, status
*/
void ls_cmd(void){
  int vid;
  Stmt q;
  int verboseFlag;
  int showAge;
  int timeOrder;

**    --case-sensitive BOOL   Override case-sensitive setting
**    --dotfiles              Include files beginning with a dot (".")
**    --header                Identify the repository if there are extras
**    --ignore CSG            Ignore files matching patterns from the argument
**    --rel-paths             Display pathnames relative to the current working
**                            directory.
**
** See also: changes, clean, status
*/
void extras_cmd(void){
  Blob report = BLOB_INITIALIZER;
  const char *zIgnoreFlag = find_option("ignore",0,1);
  unsigned scanFlags = find_option("dotfiles",0,0)!=0 ? SCAN_ALL : 0;
  unsigned flags = C_EXTRA;
  int showHdr = find_option("header",0,0)!=0;

**    -n|--dry-run           Delete nothing, but display what would have been
**                           deleted.
**    --no-prompt            This option disables prompting the user for input
**                           and assumes an answer of 'No' for every question.
**    --temp                 Remove only Fossil-generated temporary files.
**    -v|--verbose           Show all files as they are removed.
**
** See also: addremove, extras, status
*/
void clean_cmd(void){
  int allFileFlag, allDirFlag, dryRunFlag, verboseFlag;
  int emptyDirsFlag, dirsOnlyFlag;
  int disableUndo, noPrompt;
  int alwaysPrompt = 0;
  unsigned scanFlags = 0;

**
** DATETIME may be "now" or "YYYY-MM-DDTHH:MM:SS.SSS". If in
** year-month-day form, it may be truncated, the "T" may be replaced by
** a space, and it may also name a timezone offset from UTC as "-HH:MM"
** (westward) or "+HH:MM" (eastward). Either no timezone suffix or "Z"
** means UTC.
**
** See also: branch, changes, checkout, extras, sync
*/
void commit_cmd(void){
  int hasChanges;        /* True if unsaved changes exist */
  int vid;               /* blob-id of parent version */
  int nrid;              /* blob-id of a modified file */
  int nvid;              /* Blob-id of the new check-in */
  Blob comment;          /* Check-in comment */

**    --force           Ignore edited files in the current checkout
**    --keep            Only update the manifest and manifest.uuid files
**    --force-missing   Force checkout 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
**                      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 keepFlag;                  /* Do not change any files on disk */
  int latestFlag;                /* Checkout the latest version */
  char *zVers;                   /* Version to checkout */

}

/*
** COMMAND: close*
**
** 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:
**   --force|-f  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();

**
**         Synchronize configuration changes in the local repository with
**         the remote repository at URL.
**
** Options:
**    -R|--repository FILE       Extract info from repository FILE
**
** See also: settings, unset
*/
void configuration_cmd(void){
  int n;
  const char *zMethod;
  db_find_and_open_repository(0, 0);
  db_open_config(0, 0);
  if( g.argc<3 ){

** Extract an artifact by its artifact hash and write the results on
** standard output, or if the optional 4th argument is given, in
** the named output file.
**
** Options:
**    -R|--repository FILE       Extract artifacts from repository FILE
**
** See also: finfo
*/
void artifact_cmd(void){
  int rid;
  Blob content;
  const char *zFile;
  db_find_and_open_repository(OPEN_ANY_SCHEMA, 0);
  if( g.argc!=4 && g.argc!=3 ) usage("ARTIFACT-ID ?FILENAME? ?OPTIONS?");

** directory, or in DIR if the "--workdir DIR" is used.  If VERSION is
** specified then that version is checked out.  Otherwise the most recent
** check-in on the main branch (usually "trunk") is used.
**
** REPOSITORY can be the filename for a repository that already exists on the
** local machine or it can be a URI for a remote repository.  If REPOSITORY
** is a URI in one of the formats recognized by the [[clone]] command, then
** remote repo is first cloned, then the clone is opened.
** The clone will be stored in the current directory, or in an alternative
** directory specified by the --repodir option.  The name of the clone will
** be taken from the last term of the URI.  For http: and https: URIs, you
** can append an extra term on the end to get any repository name you like.
** For example:
**
**     fossil open https://fossil-scm.org/home/new-name
**
** The base URI for cloning is 'https://fossil-scm.org/home'.  The extra
** 'new-name' term means that the cloned repository will be called
** 'new-name.fossil'.
**
** Options:
**   --empty           Initialize checkout as being empty, but still connected
**                     with the local repository. If you commit this checkout,
**                     it will become a new "initial" commit in the repository.
**   --force           Continue with the open even if the working directory is
**                     not empy.
**   --force-missing   Force opening a repository with missing content
**   --keep            Only modify the manifest and manifest.uuid files
**   --nested          Allow opening a repository inside an opened checkout
**   --repodir DIR     If REPOSITORY is a URI that will be cloned, store
**                     the clone in DIR rather than in "."
**   --setmtime        Set timestamps of all files to match their SCM-side
**                     times (the timestamp of the last checkin which modified
**                     them).
**   --workdir DIR     Use DIR as the working directory instead of ".". The DIR
**                     directory is created if it does not previously exist.
**
** See also: [[close]], [[clone]]
*/
void cmd_open(void){
  int emptyFlag;
  int keepFlag;
  int forceMissingFlag;

**
** Options:
**    -R|--repository FILE       Extract info from repository FILE
**    -W|--width <num>           Width of lines (default is to auto-detect).
**                               Must be >20 or 0 (= no limit, resulting in a
**                               single line per entry).
**
** See also: finfo, info, leaves
*/
void descendants_cmd(void){
  Stmt q;
  int base, width;
  const char *zWidth;

  db_find_and_open_repository(0,0);

**   -c|--closed      show only closed leaves
**   -m|--multiple    show only cases with multiple leaves on a single branch
**   --recompute      recompute the "leaf" table in the repository DB
**   -W|--width <num> Width of lines (default is to auto-detect). Must be
**                    >39 or 0 (= no limit, resulting in a single line per
**                    entry).
**
** See also: descendants, finfo, info, branch
*/
void leaves_cmd(void){
  Stmt q;
  Blob sql;
  int showAll = find_option("all", "a", 0)!=0;
  int showClosed = find_option("closed", "c", 0)!=0;
  int recomputeFlag = find_option("recompute",0,0)!=0;

**                                 none   No limit
**   -o|--origin VERSION         The origin check-in. By default this is the
**                               root of the repository. Set to "trunk" or
**                               similar for a reverse annotation.
**   -w|--ignore-all-space       Ignore white space when comparing lines
**   -Z|--ignore-trailing-space  Ignore whitespace at line end
**
** See also: info, finfo, timeline
*/
void annotate_cmd(void){
  const char *zRevision; /* Revision name, or NULL for current check-in */
  Annotator ann;         /* The annotation of the file */
  int i;                 /* Loop counter */
  const char *zLimit;    /* The value to the -n|--limit option */
  const char *zOrig;     /* The value for -o|--origin */

**   -r|--revision R      print the given revision (or ckout, if none is given)
**                        to stdout (only in print mode)
**   -s|--status          select status mode (print a status indicator for FILE)
**   -W|--width <num>     Width of lines (default is to auto-detect). Must be
**                        >22 or 0 (= no limit, resulting in a single line per
**                        entry).
**
** See also: artifact, cat, descendants, info, leaves
*/
void finfo_cmd(void){
  db_must_be_within_tree();
  if( find_option("status","s",0) ){
    Stmt q;
    Blob line;
    Blob fname;

** in the repository.  The version currently checked out is shown by default.
** Other versions may be specified using the -r option.
**
** Options:
**    -R|--repository FILE       Extract artifacts from repository FILE
**    -r VERSION                 The specific check-in containing the file
**
** See also: finfo
*/
void cat_cmd(void){
  int i;
  Blob content, fname;
  const char *zRev;
  db_find_and_open_repository(0, 0);
  zRev = find_option("r","r",1);

** file in a checkout.
**
** Options:
**
**    -R|--repository FILE       Extract info from repository FILE
**    -v|--verbose               Show extra information about repositories
**
** See also: annotate, artifact, finfo, timeline
*/
void info_cmd(void){
  i64 fsize;
  int verboseFlag = find_option("verbose","v",0)!=0;
  if( !verboseFlag ){
    verboseFlag = find_option("detail","l",0)!=0; /* deprecated */
  }

**     jsmode: VALUE           Specifies the delivery mode for JavaScript
**                             files. See the help text for the --jsmode
**                             flag of the http command.
**
** Most CGI files contain only a "repository:" line.  It is uncommon to
** use any other option.
**
** See also: http, server, winsrv
*/
void cmd_cgi(void){
  const char *zFile;
  const char *zNotFound = 0;
  char **azRedirect = 0;             /* List of repositories to redirect to */
  int nRedirect = 0;                 /* Number of entries in azRedirect */
  Glob *pFileGlob = 0;               /* Pattern for files */

**   --repolist       If REPOSITORY is directory, URL "/" lists all repos
**   --scgi           Interpret input as SCGI rather than HTTP
**   --skin LABEL     Use override skin LABEL
**   --th-trace       trace TH1 execution (for debugging purposes)
**   --usepidkey      Use saved encryption key from parent process.  This is
**                    only necessary when using SEE on Windows.
**
** See also: cgi, server, winsrv
*/
void cmd_http(void){
  const char *zIpAddr = 0;
  const char *zNotFound;
  const char *zHost;
  const char *zAltBase;
  const char *zFileGlob;

}

/*
** Note that the following command is used by ssh:// processing.
**
** COMMAND: test-http
**
** Works like the http command but gives setup permission to all users.
**
** Options:
**   --th-trace          trace TH1 execution (for debugging purposes)
**   --usercap   CAP     user capability string.  (Default: "sx")
**
*/
void cmd_test_http(void){

**   --th-trace          trace TH1 execution (for debugging purposes)
**   --repolist          If REPOSITORY is dir, URL "/" lists repos.
**   --scgi              Accept SCGI rather than HTTP
**   --skin LABEL        Use override skin LABEL
**   --usepidkey         Use saved encryption key from parent process.  This is
**                       only necessary when using SEE on Windows.
**
** See also: cgi, http, winsrv
*/
void cmd_webserver(void){
  int iPort, mxPort;        /* Range of TCP ports allowed */
  const char *zPort;        /* Value of the --port option */
  const char *zBrowser;     /* Name of web browser program */
  char *zBrowserCmd = 0;    /* Command to launch the web browser */
  int isUiCmd;              /* True if command is "ui", not "server' */

**
**      TBD...
**
** COMMON OPTIONS:
**
**   --explain         Make no changes, but show what would happen.
**   --dry-run         An alias for --explain
**
** SUMMARY:
**  * fossil purge artifacts HASH.. [OPTIONS]
**  * fossil purge cat HASH...
**  * fossil purge checkins TAGS... [OPTIONS]
**  * fossil purge files FILENAME... [OPTIONS]
**  * fossil purge list
**  * fossil purge obliterate ID...
**  * fossil purge tickets NAME... [OPTIONS]
**  * fossil purge undo ID
**  * fossil purge wiki NAME... [OPTIONS]
*/
void purge_cmd(void){
  int purgeFlags = PURGE_MOVETO_GRAVEYARD | PURGE_PRINT_SUMMARY;
  const char *zSubcmd;
  int n;
  int i;
  Stmt q;

**   --noindex         Always omit the full-text search index
**   --pagesize N      Set the database pagesize to N. (512..65536 and power of 2)
**   --quiet           Only show output if there are errors
**   --randomize       Scan artifacts in a random order
**   --stats           Show artifact statistics after rebuilding
**   --vacuum          Run VACUUM on the database after rebuilding
**   --wal             Set Write-Ahead-Log journalling mode on the database
**
** See also: deconstruct, reconstruct
*/
void rebuild_database(void){
  int forceFlag;
  int randomizeFlag;
  int errCnt = 0;
  int omitVerify;
  int doClustering;

** Subdirectories are read, files with leading '.' in the filename are ignored.
**
** Options:
**   -K|--keep-rid1     Read the filename of the artifact with RID=1 from the
**                      file .rid in DIRECTORY.
**   -P|--keep-private  Mark the artifacts listed in the file .private in
**                      DIRECTORY as private in the new Fossil repository.
**
** See also: deconstruct, rebuild
*/
void reconstruct_cmd(void) {
  char *zPassword;
  int fKeepPrivate;
  fKeepRid1 = find_option("keep-rid1","K",0)!=0;
  fKeepPrivate = find_option("keep-private","P",0)!=0;
  if( g.argc!=4 ){

**                               the file .rid1 in the DESTINATION directory.
**   -L|--prefixlength N         Set the length of the names of the DESTINATION
**                               subdirectories to N.
**   --private                   Include private artifacts.
**   -P|--keep-private           Save the list of private artifacts to the file
**                               .private in the DESTINATION directory (implies
**                               the --private option).
**
** See also: reconstruct, rebuild
*/
void deconstruct_cmd(void){
  const char *zPrefixOpt;
  Stmt        s;
  int privateFlag;
  int fKeepPrivate;

** If a file is named "-" then take its content from standard input.
** Options:
**
**    -h, --dereference     If FILE is a symbolic link, compute the hash
**                          on the object that the link points to.  Normally,
**                          the hash is over the name of the object that
**                          the link points to.


*/
void sha1sum_test(void){
  int i;
  Blob in;
  Blob cksum;
  int eFType = SymFILE;
  if( find_option("dereference","h",0)!=0 ){

**    --256               Compute a SHA3-256 hash (the default)
**    --384               Compute a SHA3-384 hash
**    --512               Compute a SHA3-512 hash
**    --size N            An N-bit hash.  N must be a multiple of 32 between
**                        128 and 512.
**    -h, --dereference   If FILE is a symbolic link, compute the hash on
**                        the object pointed to, not on the link itself.


*/
void sha3sum_test(void){
  int i;
  Blob in;
  Blob cksum;
  int iSize = 256;
  int eFType = SymFILE;

**
** > fossil stash diff ?STASHID? ?DIFF-OPTIONS?
** > fossil stash gdiff ?STASHID? ?DIFF-OPTIONS?
**
**      Show diffs of the current working directory and what that
**      directory would be if STASHID were applied. With gdiff,
**      gdiff-command is used instead of internal diff logic.
**
** SUMMARY:
**  * fossil stash
**  * fossil stash save ?-m|--comment COMMENT? ?FILES...?
**  * fossil stash snapshot ?-m|--comment COMMENT? ?FILES...?
**  * fossil stash list|ls ?-v|--verbose? ?-W|--width <num>?
**  * fossil stash show|cat ?STASHID? ?DIFF-OPTIONS?
**  * fossil stash gshow|gcat ?STASHID? ?DIFF-OPTIONS?
**  * fossil stash pop
**  * fossil stash apply|goto ?STASHID?
**  * fossil stash drop|rm ?STASHID? ?-a|--all?
**  * fossil stash diff ?STASHID? ?DIFF-OPTIONS?
**  * fossil stash gdiff ?STASHID? ?DIFF-OPTIONS?
*/
void stash_cmd(void){
  const char *zCmd;
  int nCmd;
  int stashid = 0;
  undo_capture_command_line();
  db_must_be_within_tree();

**   -R|--repository REPO       Local repository to pull into
**   --ssl-identity FILE        Local SSL credentials, if requested by remote
**   --ssh-command SSH          Use SSH as the "ssh" command
**   -v|--verbose               Additional (debugging) output
**   --verily                   Exchange extra information with the remote
**                              to ensure no content is overlooked
**
** See also: clone, config pull, push, remote, sync
*/
void pull_cmd(void){
  unsigned configFlags = 0;
  unsigned syncFlags = SYNC_PULL;
  unsigned urlOmitFlags = 0;
  const char *zAltPCode = find_option("project-code",0,1);
  if( find_option("from-parent-project",0,0)!=0 ){

**   -R|--repository REPO       Local repository to push from
**   --ssl-identity FILE        Local SSL credentials, if requested by remote
**   --ssh-command SSH          Use SSH as the "ssh" command
**   -v|--verbose               Additional (debugging) output
**   --verily                   Exchange extra information with the remote
**                              to ensure no content is overlooked
**
** See also: clone, config push, pull, remote, sync
*/
void push_cmd(void){
  unsigned configFlags = 0;
  unsigned syncFlags = SYNC_PUSH;
  process_sync_args(&configFlags, &syncFlags, 0, 0);

  /* We should be done with options.. */

**   --ssl-identity FILE        Local SSL credentials, if requested by remote
**   --ssh-command SSH          Use SSH as the "ssh" command
**   -u|--unversioned           Also sync unversioned content
**   -v|--verbose               Additional (debugging) output
**   --verily                   Exchange extra information with the remote
**                              to ensure no content is overlooked
**
** See also: clone, pull, push, remote
*/
void sync_cmd(void){
  unsigned configFlags = 0;
  unsigned syncFlags = SYNC_PUSH|SYNC_PULL;
  if( find_option("unversioned","u",0)!=0 ){
    syncFlags |= SYNC_UNVERSIONED;
  }

**
** Future versions of Fossil might add new commands to the set of commands
** that are undoable.
**
** Options:
**   -n|--dry-run   do not make changes but show what would be done
**
** See also: commit, status
*/
void undo_cmd(void){
  int isRedo = g.argv[1][0]=='r';
  int undo_available;
  int dryRunFlag = find_option("dry-run", "n", 0)!=0;
  const char *zCmd = isRedo ? "redo" : "undo";

**   --setmtime             Set timestamps of all files to match their
**                          SCM-side times (the timestamp of the last
**                          checkin which modified them).
**  -K|--keep-merge-files   On merge conflict, retain the temporary files
**                          used for merging, named *-baseline, *-original,
**                          and *-merge.
**
** See also: revert
*/
void update_cmd(void){
  int vid;              /* Current version */
  int tid=0;            /* Target version - version we are changing to */
  Stmt q;
  int latestFlag;       /* --latest.  Pick the latest version if true */
  int dryRunFlag;       /* -n or --dry-run.  Do a dry run */

** If a file is reverted accidentally, it can be restored using
** the "fossil undo" command.
**
** Options:
**   -r|--revision VERSION    Revert given FILE(s) back to given
**                            VERSION
**
** See also: redo, undo, checkout, update
*/
void revert_cmd(void){
  Manifest *pCoManifest;          /* Manifest of current checkout */
  Manifest *pRvManifest;          /* Manifest of selected revert version */
  ManifestFile *pCoFile;          /* File within current checkout manifest */
  ManifestFile *pRvFile;          /* File within revert version manifest */
  const char *zFile;              /* Filename relative to checkout root */