** WARNING: If the "--hard" option is specified -OR- the "mv-rm-files"
**          setting is non-zero, files WILL BE removed from disk as well.
**          This does NOT apply to the 'forget' command.
**
** Options:
**   --soft                  Skip removing files from the checkout.
**                           This supersedes the --hard option.
**   --hard                  Remove files from the checkout.
**   --case-sensitive BOOL   Override the case-sensitive setting.
**   -n|--dry-run            If given, display instead of run actions.
**   --reset                 Reset the DELETED state of a checkout, such
**                           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.
**   -v|--verbose            Outputs information about each --reset file.

**
** The -n|--dry-run option shows what would happen without actually doing
** anything.
**
** This command can be used to track third party software.
**
** Options:
**   --case-sensitive BOOL   Override the case-sensitive setting.
**   --dotfiles              Include files beginning with a dot (".")
**   --ignore CSG            Ignore unmanaged files matching patterns from
**                           the Comma Separated Glob (CSG) list
**   --clean CSG             Also ignore files matching patterns from
**                           the Comma Separated Glob (CSG) list
**   -n|--dry-run            If given, display instead of run actions.
**   --reset                 Reset the ADDED/DELETED state of a checkout,
**                           such that all newly-added (but not yet committed)
**                           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.
**   -v|--verbose            Outputs information about each --reset file.

**
** Repositories are automatically added to the set of known repositories
** when one of the following commands are run against the repository:
** clone, info, pull, push, or sync.  Even previously ignored repositories
** are added back to the list of repositories by these commands.
**
** Options:
**   --dry-run         If given, display instead of run actions.
**   --showfile        Show the repository or checkout being operated upon.
**   --stop-on-error   Halt immediately if any subprocess fails.
*/
void all_cmd(void){
  Stmt q;
  const char *zCmd;
  char *zSyscmd;
  Blob extra;
  int useCheckouts = 0;

** If only a single repository is named and --poll is omitted, then the
** backoffice work is done in-process.  But if there are multiple repositories
** or if --poll is used, a separate sub-process is started for each poll of 
** each repository.
**
** Standard options:
**
**    --debug                 Show what this command is doing.
**
**    --logfile FILE          Append a log of backoffice actions onto FILE.
**
**    --min N                 When polling, invoke backoffice at least
**                            once every N seconds even if the repository
**                            never changes.  0 or negative means disable
**                            this feature.  Default: 3600 (once per hour).
**
**    --poll N                Repeat backoffice calls for repositories that

** > fossil chat pull
**
**      Copy chat content from the server down into the local clone,
**      as a backup or archive.  Setup privilege is required on the server.
**
**        --all                  Download all chat content. Normally only
**                               previously undownloaded content is retrieved.
**        --debug                Additional debugging output.
**        --out DATABASE         Store CHAT table in separate database file
**                               DATABASE rather that adding to local clone
**        --unsafe               Allow the use of unencrypted http://
**
** > fossil chat send [ARGUMENTS]
**
**      This command sends a new message to the chatroom.  The message

**
** If both --merge and --no-merge are used, --no-merge has priority.  The
** same is true of --classify and --no-classify.
**
** The "fossil changes --extra" command is equivalent to "fossil extras".
**
** General options:
**    --abs-paths       Display absolute pathnames.
**    --rel-paths       Display pathnames relative to the current working
**                      directory.
**    --hash            Verify file status using hashing rather than
**                      relying on file mtimes.
**    --case-sensitive BOOL  Override case-sensitive setting.
**    --dotfiles        Include unmanaged files beginning with a dot.
**    --ignore <CSG>    Ignore unmanaged files matching CSG glob patterns.
**
** Options specific to the changes command:
**    --header          Identify the repository if report is non-empty.
**    -v|--verbose      Say "(none)" if the change report is empty.
**    --classify        Start each line with the file's change type.
**    --no-classify     Do not print file change types.
**
** Filter options:
**    --edited          Display edited, merged, and conflicted files.
**    --updated         Display files updated by merge/integrate.
**    --changed         Combination of the above two options.
**    --missing         Display missing files.
**    --added           Display added files.
**    --deleted         Display deleted files.
**    --renamed         Display renamed files.
**    --conflict        Display files having merge conflicts.
**    --meta            Display files with metadata changes.
**    --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. */

** With -r, -v shows the commit time and size of the checked-in files.
**
** The -t option changes the sort order.  Without -t, files are sorted by
** path and name (case insensitive sort if -r).  If neither --age nor -r
** are used, -t sorts by modification time, otherwise by commit time.
**
** 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 REPO  Extract info from repository REPO.
**   --hash                With -v, verify file status using hashing
**                         rather than relying on file sizes and mtimes.
**
** See also: [[changes]], [[extras]], [[status]]
*/
void ls_cmd(void){
  int vid;
  Stmt q;
  int verboseFlag;

**
** The --tag option applies the symbolic tag name to the check-in.
**
** The --hash option detects edited files by computing each file's
** artifact hash rather than just checking for changes to its size or mtime.
**
** Options:
**    --allow-conflict           allow unresolved merge conflicts
**    --allow-empty              allow a commit with no changes
**    --allow-fork               allow the commit to fork
**    --allow-older              allow a commit older than its ancestor
**    --baseline                 use a baseline manifest in the commit process
**    --bgcolor COLOR            apply COLOR to this one check-in only
**    --branch NEW-BRANCH-NAME   check in to this new branch
**    --branchcolor COLOR        apply given COLOR to the branch
**                                 ("auto" lets Fossil choose it automatically,
**                                  even for private branches)
**    --close                    close the branch being committed
**    --date-override DATETIME   DATE to use instead of 'now'
**    --delta                    use a delta manifest in the commit process
**    --hash                     verify file status using hashing rather
**                               than relying on file mtimes
**    --ignore-clock-skew        If a clock skew is detected, ignore it and
**                               behave as if the user had entered 'yes' to
**                               the question of whether to proceed despite
**                               the skew.
**    --ignore-oversize          Do not warning the user about oversized files
**    --integrate                close all merged-in branches
**    -m|--comment COMMENT-TEXT  use COMMENT-TEXT as commit comment
**    -M|--message-file FILE     read the commit comment from given file
**    --mimetype MIMETYPE        mimetype of check-in comment
**    -n|--dry-run               If given, display instead of run actions
**    -v|--verbose               Show a diff in the commit message prompt
**    --no-prompt                This option disables prompting the user for
**                               input and assumes an answer of 'No' for every
**                               question.
**    --no-warnings              omit all warnings about file contents
**    --no-verify                do not run before-commit hooks
**    --nosign                   do not attempt to sign this commit with gpg
**    --override-lock            allow a check-in even though parent is locked
**    --private                  do not sync changes and their descendants
**    --tag TAG-NAME             assign given tag TAG-NAME to the check-in
**    --trace                    debug tracing.
**    --user-override USER       USER to use instead of the current default
**
** 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.

** "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.
**   -f|--force        Continue with the open even if the working directory is
**                     not empty.
**   --force-missing   Force opening a repository with missing content
**   -k|--keep         Only modify the manifest file(s)
**   --nested          Allow opening a repository inside an opened checkout
**   --nosync          Do not auto-sync the repository prior to opening even
**                     if the autosync setting is on.
**   --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).
**   --sync            Auto-sync prior to opening even if the autosync setting
**                     is off.
**   --verbose         If passed a URI then this flag is passed on to the clone
**                     operation, otherwise it has no effect.
**   --workdir DIR     Use DIR as the working directory instead of ".". The DIR
**                     directory is created if it does not exist.
**
** See also: [[close]], [[clone]]
*/
void cmd_open(void){
  int emptyFlag;

** that applies to all repositories.  The local values are stored in the
** "config" table of the repository and the global values are stored in the
** configuration database.  If both a local and a global value exists for a
** setting, the local value takes precedence.  This command normally operates
** on the local settings.  Use the --global option to change global settings.
**
** Options:
**   --global   set or unset the given property globally instead of
**              setting or unsetting it for the open repository only.
**
**   --exact    only consider exact name matches.
**
** See also: [[configuration]]
*/
void setting_cmd(void){
  int i;
  int globalFlag = find_option("global","g",0)!=0;
  int exactFlag = find_option("exact",0,0)!=0;

**
**       Options:
**         --autopush URL      Automatically do a 'git push' to URL.  The
**                             URL is remembered and used on subsequent exports
**                             to the same repository.  Or if URL is "off" the
**                             auto-push mechanism is disabled
**         --debug FILE        Write fast-export text to FILE rather than
**                             piping it into "git fast-import".
**         -f|--force          Do the export even if nothing has changed
**         --if-mirrored       No-op if the mirror does not already exist.
**         --limit N           Add no more than N new check-ins to MIRROR.
**                             Useful for debugging
**         --mainbranch NAME   Use NAME as the name of the main branch in Git.
**                             The "trunk" branch of the Fossil repository is
**                             mapped into this name.  "master" is used if
**                             this option is omitted.
**         -q|--quiet          Reduce output. Repeat for even less output.
**         -v|--verbose        More output.
**
** > fossil git import MIRROR
**
**       TBD...   
**
** > fossil git status
**

** This command gets its name from the conventional Unix "touch"
** command.
**
** Options:
**   --now          Stamp each affected file with the current time.
**                  This is the default behavior.
**   -c|--checkin   Stamp each affected file with the time of the
**                  most recent check-in which modified that file.
**   -C|--checkout  Stamp each affected file with the time of the
**                  currently-checked-out version.
**   -g GLOBLIST    Comma-separated list of glob patterns.
**   -G GLOBFILE    Similar to -g but reads its globs from a
**                  fossil-conventional glob list file.
**   -v|--verbose   Outputs extra information about its globs
**                  and each file it touches.
**   -n|--dry-run   Outputs which files would require touching,
**                  but does not touch them.
**   -q|--quiet     Suppress warnings, e.g. when skipping unmanaged
**                  or out-of-tree files.
**
** Only one of --now, --checkin, and --checkout may be used. The
** default is --now.
**
** Only one of -g or -G may be used. If neither is provided and no
** additional filenames are provided, the effect is as if a glob of
** '*' were provided, i.e. all files belonging to the

**                  --flat             The whole dump is a single branch
**                  --rev-tags         Tag each revision, implied by -i
**                  --no-rev-tags      Disables tagging effect of -i
**                  --rename-rev PAT   Rev tag names, default "svn-rev-%"
**                  --ignore-tree DIR  Ignores subtree rooted at DIR
**
** Common Options:
**   -i|--incremental     allow importing into an existing repository
**   -f|--force           overwrite repository if already exists
**   -q|--quiet           omit progress output
**   --no-rebuild         skip the "rebuilding metadata" step
**   --no-vacuum          skip the final VACUUM of the database file
**   --rename-trunk NAME  use NAME as name of imported trunk branch
**   --rename-branch PAT  rename all branch names using PAT pattern
**   --rename-tag PAT     rename all tag names using PAT pattern
**   -A|--admin-user NAME use NAME for the admin user 
**
** The --incremental option allows an existing repository to be extended
** with new content.  The --rename-* options may be useful to avoid name
** conflicts when using the --incremental option. The --admin-user
** option is ignored if --incremental is specified.
**
** The argument to --rename-* contains one "%" character to be replaced

** and every "." must be surrounded on both sides by alphanumerics or else
** a 404 error is returned.  Static content files in the directory are
** returned if they match comma-separate GLOB pattern specified by --files
** and do not match "*.fossil*" and have a well-known suffix.
**
** Options:
**   --acme              Deliver files from the ".well-known" subdirectory
**   --baseurl URL       base URL (useful with reverse proxies)
**   --cert FILE         Use TLS (HTTPS) encryption with the certificate (the
**                       fullchain.pem) taken from FILE.
**   --chroot DIR        Use directory for chroot instead of repository path.
**   --ckout-alias N     Treat URIs of the form /doc/N/... as if they were
**                          /doc/ckout/...
**   --extroot DIR       Document root for the /ext extension mechanism
**   --files GLOB        Comma-separate glob patterns for static file to serve

**                                       more bundled requests which
**                                       concatenate scripts together.
**                       Depending on the needs of any given page, inline
**                       and bundled modes might result in a single
**                       amalgamated script or several, but both approaches
**                       result in fewer HTTP requests than the separate mode.
**   --localauth         Connections from localhost are given "setup"
**                       privileges without having to log in.
**   --mainmenu FILE     Override the mainmenu config setting with the contents
**                       of the given file.
**   --nocompress        Do not compress HTTP replies
**   --nodelay           Omit backoffice processing if it would delay
**                       process exit
**   --nojail            Drop root privilege but do not enter the chroot jail
**   --nossl             Do not do http: to https: redirects, regardless of
**                       the redirect-to-https setting.
**   --notfound URL      Use URL as the "HTTP 404, object not found" page.
**   --out FILE          Write the HTTP reply to FILE instead of to 
**                       standard output
**   --pkey FILE         Read the private key used for TLS from FILE.
**   --repolist          If REPOSITORY is directory, URL "/" lists all repos
**   --scgi              Interpret input as SCGI rather than HTTP
**   --skin LABEL        Use override skin LABEL. Use an empty string ("")
**                       to force use of the current local skin config.
**   --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.

** having to log in.  This can be disabled by turning off the "localauth"
** setting.  Automatic login for the "server" command is available if the
** --localauth option is present and the "localauth" setting is off and the
** connection is from localhost.  The "ui" command also enables --repolist
** by default.
**
** Options:
**   --acme              Deliver files from the ".well-known" subdirectory.
**   --baseurl URL       Use URL as the base (useful for reverse proxies)
**   --cert FILE         Use TLS (HTTPS) encryption with the certificate (the
**                       fullchain.pem) taken from FILE.
**   --chroot DIR        Use directory for chroot instead of repository path.
**   --ckout-alias NAME  Treat URIs of the form /doc/NAME/... as if they were
**                       /doc/ckout/...
**   --create            Create a new REPOSITORY if it does not already exist
**   --extroot DIR       Document root for the /ext extension mechanism
**   --files GLOBLIST    Comma-separated list of glob patterns for static files
**   --fossilcmd PATH    Full pathname of the "fossil" executable on the remote
**                       system when REPOSITORY is remote.  Default: "fossil"
**   --localauth         enable automatic login for requests from localhost
**   --localhost         listen on 127.0.0.1 only (always true for "ui")
**   --https             Indicates that the input is coming through a reverse
**                       proxy that has already translated HTTPS into HTTP.
**   --jsmode MODE       Determine how JavaScript is delivered with pages.
**                       Mode can be one of:
**                          inline       All JavaScript is inserted inline at
**                                       the end of the HTML file.
**                          separate     Separate HTTP requests are made for
**                                       each JavaScript file.
**                          bundled      One single separate HTTP fetches all
**                                       JavaScript concatenated together.
**                       Depending on the needs of any given page, inline
**                       and bundled modes might result in a single
**                       amalgamated script or several, but both approaches
**                       result in fewer HTTP requests than the separate mode.
**   --mainmenu FILE     Override the mainmenu config setting with the contents
**                       of the given file.
**   --max-latency N     Do not let any single HTTP request run for more than N
**                       seconds (only works on unix)
**   -B|--nobrowser      Do not automatically launch a web-browser for the
**                       "fossil ui" command.
**   --nocompress        Do not compress HTTP replies
**   --nojail            Drop root privileges but do not enter the chroot jail
**   --nossl             do not force redirects to SSL even if the repository
**                       setting "redirect-to-https" requests it.  This is set
**                       by default for the "ui" command.
**   --notfound URL      Redirect to URL if a page is not found.
**   -p|--page PAGE      Start "ui" on PAGE.  ex: --page "timeline?y=ci"
**   --pkey FILE         Read the private key used for TLS from FILE.
**   -P|--port TCPPORT   listen to request on port TCPPORT
**   --repolist          If REPOSITORY is dir, URL "/" lists repos.
**   --scgi              Accept 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]], [[http]], [[winsrv]]
*/
void cmd_webserver(void){
  int iPort, mxPort;        /* Range of TCP ports allowed */

**                           option overrides the "binary-glob" setting.
**
**   --cherrypick            Do a cherrypick merge VERSION into the current
**                           checkout.  A cherrypick merge pulls in the changes
**                           of the single check-in VERSION, rather than all
**                           changes back to the nearest common ancestor.
**
**   -f|--force              Force the merge even if it would be a no-op.
**
**   --force-missing         Force the merge even if there is missing content.
**
**   --integrate             Merged branch will be closed when committing.
**
**   -K|--keep-merge-files   On merge conflict, retain the temporary files
**                           used for merging, named *-baseline, *-original,
**                           and *-merge.
**
**   -n|--dry-run            If given, display instead of run actions
**

** > fossil patch create [DIRECTORY] FILENAME
**
**       Create a new binary patch in FILENAME that captures all uncommitted
**       changes in the check-out at DIRECTORY, or the current directory if
**       DIRECTORY is omitted.  If FILENAME is "-" then the binary patch
**       is written to standard output.
**
**           -f|--force     Overwrite an existing patch with the same name.
**
** > fossil patch apply [DIRECTORY] FILENAME
**
**       Apply the changes in FILENAME to the check-out at DIRECTORY, or
**       in the current directory if DIRECTORY is omitted. Options:
**
**           -f|--force     Apply the patch even though there are unsaved
**                          changes in the current check-out.  Unsaved changes
**                          are reverted and permanently lost.
**           -n|--dry-run   Do nothing, but print what would have happened.
**           -v|--verbose   Extra output explaining what happens.
**
** > fossil patch diff [DIRECTORY] FILENAME
**
**       Show a human-readable diff for the patch.  All the usual
**       diff flags described at "fossil help diff" apply.  In addition:
**
**           -f|--force     Continue trying to perform the diff even if

**       Command-line options:
**
**           -f|--force         Apply the patch even though there are unsaved
**                              changes in the current check-out.  Unsaved
**                              changes will be reverted and then the patch is
**                              applied.
**           --fossilcmd EXE    Name of the "fossil" executable on the remote  
**           -n|--dry-run       Do nothing, but print what would have happened.
**           -v|--verbose       Extra output explaining what happens.
**
**
** > fossil patch pull REMOTE-CHECKOUT
**
**       Like "fossil patch push" except that the transfer is from remote
**       to local.  All the same command-line options apply.
**
** > fossil patch view FILENAME
**
**       View a summary of the changes in the binary patch FILENAME.
**       Use "fossil patch diff" for detailed patch content.
**
**           -v|--verbose       Show extra detail about the patch.
**
*/
void patch_cmd(void){
  const char *zCmd;
  size_t n;
  if( g.argc<3 ){
    patch_usage:

** resp. stdout, and the names "-" can be used as aliases for those
** streams.
**
** Options:
**
**    -div       On success, add a DIV wrapper around the
**               resulting SVG output which limits its max-width to
**               its computed maximum ideal size.
**
**    -div-indent  Like -div but indent the div.
**
**    -div-center  Like -div but center the div.
**
**    -div-left    Like -div but float the div left.
**
**    -div-right   Like -div but float the div right.
**
**    -div-toggle  Set the 'toggle' CSS class on the div (used by the
**                 JavaScript-side post-processor).
**
**    -div-source  Set the 'source' CSS class on the div, which tells
**                 CSS to hide the SVG and reveal the source by default.
**
**    -src       Store the input pikchr's source code in the output as
**               a separate element adjacent to the SVG one. Implied
**               by -div-source.
**                
**
**    -th        Process the input using TH1 before passing it to pikchr.
**
**    -th-novar  Disable $var and $<var> TH1 processing. Use this if the
**               pikchr script uses '$' for its own purposes and that
**               causes issues. This only affects parsing of '$' outside
**               of TH1 script blocks. Code in such blocks is unaffected.
**
**    -th-nosvg  When using -th, output the post-TH1'd script
**               instead of the pikchr-rendered output.
**
**    -th-trace  Trace TH1 execution (for debugging purposes).
**
**
** The -div-indent/center/left/right flags may not be combined.
**
** TH1-related Notes and Caveats:
**
** If the -th flag is used, this command must open a fossil database

** artifacts to the file system.  The DESTINATION directory will be populated
** with subdirectories AA and files AA/BBBBBBBBB.., where AABBBBBBBBB.. is the
** 40+ character artifact ID, AA the first 2 characters.
** If -L|--prefixlength is given, the length (default 2) of the directory prefix
** can be set to 0,1,..,9 characters.
**
** Options:
**   -R|--repository REPO        Deconstruct given REPOSITORY.
**   -K|--keep-rid1              Save the filename of the artifact with RID=1 to
**                               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).
*/
void deconstruct_cmd(void){
  const char *zPrefixOpt;
  Stmt        s;
  int privateFlag;
  int fKeepPrivate;

**
** Usage: %fossil rss ?OPTIONS?
**
** The CLI variant of the /timeline.rss page, this produces an RSS
** feed of the timeline to stdout. Options:
**
**   -type|y FLAG    May be: all (default), ci (show check-ins only),
**                   t (show tickets only),  w (show wiki only).
**
**   -limit|n LIMIT  The maximum number of items to show.
**
**   -tkt HASH       Filter for only those events for the specified ticket.
**
**   -tag TAG        Filter for a tag
**
**   -wiki NAME      Filter on a specific wiki page.
**
** Only one of -tkt, -tag, or -wiki may be used.
**
**   -name FILENAME  Filter for a specific file. This may be combined
**                   with one of the other filters (useful for looking
**                   at a specific branch).
**

** option can be used to output all matches, regardless of their search
** score.  The -limit option can be used to limit the number of entries
** returned.  The -width option can be used to set the output width used
** when printing matches.
**
** Options:
**
**     -a|--all          Output all matches, not just best matches.
**     -n|--limit N      Limit output to N matches.
**     -W|--width WIDTH  Set display width to WIDTH columns, 0 for
**                       unlimited. Defaults the terminal's width.
*/
void search_cmd(void){
  Blob pattern;
  int i;
  Blob sql = empty_blob;

** WARNING:  Careless use of this command can corrupt a Fossil repository
** in ways that are unrecoverable.  Be sure you know what you are doing before
** running any SQL commands that modify the repository database.  Use the
** --readonly option to prevent accidental damage to the repository.
**
** Options:
**
**    --no-repository           Skip opening the repository database.
**
**    --readonly                Open the repository read-only.  No changes
**                              are allowed.  This is a recommended safety
**                              precaution to prevent repository damage.
**
**    -R REPOSITORY             Use REPOSITORY as the repository database
**

** Usage: %fossil dbstat OPTIONS
**
** Shows statistics and global information about the repository and/or
** verify the integrity of a repository.
**
** Options:
**
**   -b|--brief           Only show essential elements.
**   --db-check           Run "PRAGMA quick_check" on the repository database.
**   --db-verify          Run a full verification of the repository integrity.
**                        This involves decoding and reparsing all artifacts
**                        and can take significant time.
**   --omit-version-info  Omit the SQLite and Fossil version information.
*/
void dbstat_cmd(void){
  i64 t, fsize;
  int n, m;
  int szMax, szAvg;
  int brief;
  int omitVers;            /* Omit Fossil and SQLite version information */

**         --propagate flag is present and ARTIFACT-ID refers to a
**         wiki page, forum post, technote, or check-in, the tag
**         propagates to all descendants of that artifact.
**
**         Options:
**           --raw                      Raw tag name. Ignored for
**                                      non-CHECK-IN artifacts.
**           --propagate                Propagating tag.
**           --date-override DATETIME   Set date and time added.
**           --user-override USER       Name USER when adding the tag.
**           -n|--dry-run               Display the tag text, but do not
**                                      actually insert it into the database.
**
**         The --date-override and --user-override options support
**         importing history from other SCM systems. DATETIME has
**         the form 'YYYY-MMM-DD HH:MM:SS'.
**
**         Note that fossil uses some tag prefixes internally and this
**         command will reject tags with these prefixes to avoid
**         causing problems or confusion: "wiki-", "tkt-", "event-".
**
** > fossil tag cancel ?--raw? TAGNAME ARTIFACT-ID
**
**         Remove the tag TAGNAME from the artifact referenced by
**         ARTIFACT-ID, and also remove the propagation of the tag to
**         any descendants.  Use the the -n|--dry-run option to see
**         what would have happened. Certain tag name prefixes are
**         forbidden, as documented for the 'add' subcommand.
**
**         Options:
**           --raw                       Raw tag name. Ignored for
**                                       non-CHECK-IN artifacts.
**           --date-override DATETIME    Set date and time deleted.
**           --user-override USER        Name USER when deleting the tag.
**           -n|--dry-run                Display the control artifact, but do
**                                       not insert it into the database.
**
** > fossil tag find ?OPTIONS? TAGNAME
**
**         List all objects that use TAGNAME.
**
**         Options:
**           --raw           Interprets tag as a raw name instead of a
**                           branch name and matches any type of artifact.
**                           Changes the output to include only the
**                           hashes of matching objects.
**           -t|--type TYPE  One of: ci (check-in), w (wiki),
**                           e (event/technote), f (forum post),
**                           t (ticket). Default is all types. Ignored
**                           if --raw is used.
**           -n|--limit N    Limit to N results.
**
** > fossil tag list|ls ?OPTIONS? ?ARTIFACT-ID?
**
**         List all tags or, if ARTIFACT-ID is supplied, all tags and
**         their values for that artifact. The tagtype option accepts
**         one of: propagated, singleton, cancel.  For historical
**         scripting compatibility, the internal tag types "wiki-",
**         "tkt-", and "event-" (technote) are elided by default
**         unless the --raw or --prefix options are used.
**
**         Options:
**           --raw           List raw names of tags
**           --tagtype TYPE  List only tags of type TYPE, which must
**                           be one of: cancel, singleton, propagated
**           -v|--inverse    Inverse the meaning of --tagtype TYPE.
**           --prefix        List only tags with the given prefix.
**                           Fossil-internal prefixes include "sym-"
**                           (branch name), "wiki-", "event-"
**                           (technote), and "tkt-" (ticket). The
**                           prefix is stripped from the resulting
**                           list unless --raw is provided. Ignored if
**                           ARTIFACT-ID is provided.
**

**                                      *FORK*, *UNPUBLISHED*, *LEAF*, *BRANCH*
**   --oneline            Show only short hash and comment for each entry
**   --medium             Medium-verbose entry formatting
**   --full               Extra verbose entry formatting
**   -n|--limit N         If N is positive, output the first N entries.  If
**                        N is negative, output the first -N lines.  If N is
**                        zero, no limit.  Default is -20 meaning 20 lines.
**   --offset P           skip P changes
**   -p|--path PATH       Output items affecting PATH only.
**                        PATH can be a file or a sub directory.
**   -R REPO_FILE         Specifies the repository db to use. Default is
**                        the current checkout's repository.
**   --sql                Show the SQL used to generate the timeline
**   -t|--type TYPE       Output items from the given types only, such as:
**                            ci = file commits only

** is cleared by the commit and checkout commands.  Other commands may
** or may not clear the undo stack.
**
** 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;