/* Loop over all candidate delta sources */
  for(i=0; i<nSrc; i++){
    int srcid = aSrc[i];
    if( srcid==rid ) continue;
    if( content_is_private(srcid) && !content_is_private(rid) ) continue;

    /* Compute all ancestors of srcid and make sure rid is not one of them.
    ** If rid is an ancestor of srcid, then making rid a decendent of srcid
    ** would create a delta loop. */
    s = srcid;
    while( (s = delta_source_rid(s))>0 ){
      if( s==rid ){
        content_undelta(srcid);
        break;
      }

**                             REPO for a check-in or ticket that matches the
**                             value of "name", then redirect to URL.  There
**                             can be multiple "redirect:" lines that are
**                             processed in order.  If the REPO is "*", then
**                             an unconditional redirect to URL is taken.
**                             When "*" is used a 301 permanent redirect is
**                             issued and the tail and query string from the
**                             original query are appeneded onto URL.
**
**    jsmode: VALUE            Specifies the delivery mode for JavaScript
**                             files. See the help text for the --jsmode
**                             flag of the http command.
**
**    mainmenu: FILE           Override the mainmenu config setting with the
**                             contents of the given file.

** complete input text, not just the display text.  No other formatting
** is done.
*/
/*
** SETTING: timeline-hard-newlines     boolean default=off
**
** If enabled, the timeline honors newline characters in check-in comments.
** In other words, newlines are coverted into <br> for HTML display.
** The default behavior, when this setting is off, is that newlines are
** treated like any other whitespace character.
*/

/*
** Return an appropriate set of flags for wiki_convert() for displaying
** comments on a timeline.  These flag settings are determined by

  @ </script>
  style_finish_page();
}

/*
** SETTING: robot-restrict                width=40 block-text
** The VALUE of this setting is a list of GLOB patterns that match
** pages for which complex HTTP requests from unauthenicated clients
** should be disallowed.  "Unauthenticated" means the user is "nobody".
** The recommended value for this setting is:
**
**     timelineX,diff,annotate,zip,fileage,file,finfo,reports
**
** The "diff" tag covers all diffing pages such as /vdiff, /fdiff, and
** /vpatch.  The "annotate" tag also covers /blame and /praise.  "zip"

  builtin_request_js("skin.js");
  style_finish_page();
}

/*
** WEBPAGE: skins
**
** Show a list of all of the built-in skins, plus the respository skin,
** and provide the user with an opportunity to change to any of them.
*/
void skins_page(void){
  int i;
  char *zBase = fossil_strdup(g.zTop);
  size_t nBase = strlen(zBase);
  login_check_credentials();

    @ <p class="warning">Warning:
    if( iDraftSkin>0 ){
      @ you are using a draft skin,
    }else{
      @ this fossil instance was started with a hard-coded skin
      @ value
    }
    @ which supercedes any option selected below. A skin selected
    @ below will be recorded in your 
    @ "%z(href("%R/fdscookie"))fossil_display_settings</a>" cookie
    @ but will not be used so long as the site has a
    @ higher-priority skin in place.
    @ </p>
  }
  @ <p>The following skins are available for this repository:</p>

  return 1;
}

/*
** Find the first check-in encountered with a particular tag
** when moving either forwards are backwards in time from a
** particular starting point (iFrom).  Return the rid of that
** first check-in.  If there are no check-ins in the decendent
** or ancestor set of check-in iFrom that match the tag, then
** return 0.
*/
static int timeline_endpoint(
  int iFrom,         /* Starting point */
  const char *zEnd,  /* Tag we are searching for */   
  int bForward       /* 1: forwards in time (descendants) 0: backwards */

**                       ft=DESCENDANT   ... going forward to DESCENDANT
**    dp=CHECKIN      Same as 'd=CHECKIN&p=CHECKIN'
**    dp2=CKIN2       Same as 'd2=CKIN2&p2=CKIN2'
**    df=CHECKIN      Same as 'd=CHECKIN&n1=all&nd'.  Mnemonic: "Derived From"
**    bt=CHECKIN      "Back To".  Show ancenstors going back to CHECKIN
**                       p=CX       ... from CX back to time of CHECKIN
**                       from=CX    ... path from CX back to CHECKIN
**    ft=CHECKIN      "Forward To":  Show decendents forward to CHECKIN
**                       d=CX       ... from CX up to the time of CHECKIN
**                       from=CX    ... path from CX up to CHECKIN
**    t=TAG           Show only check-ins with the given TAG
**    r=TAG           Same as 't=TAG&rel'.  Mnemonic: "Related"
**    tl=TAGLIST      Same as 't=TAGLIST&ms=brlist'.  Mnemonic: "Tag List"
**    rl=TAGLIST      Same as 'r=TAGLIST&ms=brlist'.  Mnemonic: "Related List"
**    ml=TAGLIST      Same as 'tl=TAGLIST&mionly'.  Mnemonic: "Merge-in List"

# specific fields and that it lacks specific fields.
proc test_json_payload {testname okfields badfields} {
  test_dict_keys $testname [dict get $::JR payload] $okfields $badfields
}

#### VERSION AKA HAI

# The JSON API generally assumes we have a respository, so let it have one.

# Set FOSSIL_USER to ensure consistent results in "json user list"
set _fossil_user ""
if [info exists env(FOSSIL_USER)] {
  set _fossil_user $env(FOSSIL_USER)
}
set ::env(FOSSIL_USER) "JSON-TEST-USER"

# On ActiveTcl, add it with teacup. On other platforms, YMMV.
# teacup install sha1
if {[catch {package require sha1}] != 0} {
  puts "The \"sha1\" package is not available."
  test_cleanup_then_return
}

# We need a respository, so let it have one.
test_setup

#### Verify classic behavior of the manifest setting

# Setting is off by default, and there are no extra files.
fossil settings manifest
test "set-manifest-1" {[regexp {^manifest *$} $RESULT]}

specified Fossil uses line-editing in the terminal.

To commit your changes to a repository that was cloned from a remote
repository, you give the same command, but the results are different.
Fossil defaults to [./concepts.wiki#workflow|autosync] mode, a
single-stage commit that sends all changes committed to the local
repository immediately on to the remote parent repository. This only
works if you have write permission to the remote respository.

<h2 id="naming">Naming of Files, Checkins, and Branches</h2>

Fossil deals with information artifacts. This Quickstart document only deals
with files and collections of files, but be aware there are also tickets, wiki pages and more. 
Every artifact in Fossil has a universally-unique hash id, and may also have a
human-readable name.