Fossil

  db_open_config(0);
  db_begin_transaction();
  db_initial_setup(zDate, zDefaultUser, 1);
  db_end_transaction(0);
  fossil_print("project-id: %s\n", db_get("project-code", 0));
  fossil_print("server-id:  %s\n", db_get("server-code", 0));
  zPassword = db_text(0, "SELECT pw FROM user WHERE login=%Q", g.zLogin);
  fossil_print("admin-user: %s (initial password is \"%s\")\n",
               g.zLogin, zPassword);
}

/*
** SQL functions for debugging.
**
** The print() function writes its arguments on stdout, but only

  { 0,0,0,0 }
};

/*
** COMMAND: settings
** COMMAND: unset
**
** %fossil settings ?PROPERTY? ?VALUE? ?--global?
** %fossil unset PROPERTY ?-global?
**
** The "settings" command with no arguments lists all properties and their
** values.  With just a property name it shows the value of that property.
** With a value argument it changes the property for the current repository.
**
** The "unset" command clears a property setting (restoring fossil's default).
**
**
**    auto-captcha     If enabled, the Login page provides a button to
**                     fill in the captcha password.  Default: on
**
**    auto-shun        If enabled, automatically pull the shunning list
**                     (for removing unwanted files and Wiki pages)
**                     from a server to which the client autosyncs.
**                     Default: on
**
**    autosync         If enabled, automatically pull prior to commit
**                     or update and automatically push after commit or
**                     tag or branch creation.  If the value is "pullonly"
**                     then only pull operations occur automatically.

**    web-browser      A shell command used to launch your preferred
**                     web browser when given a URL as an argument.
**                     Defaults to "start" on windows, "open" on Mac,
**                     and "firefox" on Unix.
**
** SUMMARY: fossil settings ?PROPERTY? ?VALUE? ?OPTIONS?
**          fossil unset PROPERTY ?OPTIONS?
** Options: --global
** Where:   PROPERTY = auto-captcha, auto-shun, autosync, binary-glob,
**                     clearsign, crnl-glob, default-perms, diff-command,
**                     dont-push, editor, gdiff-command, gmerge-command,
**                     http-port, https-login, ignore-glob, localauth,
**                     main-branch, manifest, max-upload, mtime-changes,
**                     pgp-command, proxy, repo-cksum, self-register,
**                     ssh-command, web-browser

  int nFrom;         /* Number of lines in aFrom[] */
  DLine *aTo;        /* File on right side of the diff */
  int nTo;           /* Number of lines in aTo[] */
};

/*
** Return an array of DLine objects containing a pointer to the
** start of each line and a hash of that line.  The lower
** bits of the hash store the length of each line.
**
** Trailing whitespace is removed from each line.  2010-08-20:  Not any
** more.  If trailing whitespace is ignored, the "patch" command gets
** confused by the diff output.  Ticket [a9f7b23c2e376af5b0e5b]
**
** Return 0 if the file is binary or contains a line that is

        return;
      }
    }
    if( nCopy==0 && nDel==0 ){
      p->aEdit[p->nEdit-1] += nIns;
      return;
    }
  }
  if( p->nEdit+3>p->nEditAlloc ){
    expandEdit(p, p->nEdit*2 + 15);
    if( p->aEdit==0 ) return;
  }
  p->aEdit[p->nEdit++] = nCopy;
  p->aEdit[p->nEdit++] = nDel;
  p->aEdit[p->nEdit++] = nIns;
}


/*
** Given a diff context in which the aEdit[] array has been filled
** in, compute a context diff into pOut.
*/
static void contextDiff(DContext *p, Blob *pOut, int nContext){
  DLine *A;     /* Left side of the diff */
  DLine *B;     /* Right side of the diff */
  int a = 0;    /* Index of next line in A[] */
  int b = 0;    /* Index of next line in B[] */
  int *R;       /* Array of COPY/DELETE/INSERT triples */
  int r;        /* Index into R[] */
  int nr;       /* Number of COPY/DELETE/INSERT triples to process */
  int mxr;      /* Maximum value for r */
  int na, nb;   /* Number of lines shown from A and B */

** If there are two or more possible answers of the same length, the
** returned sequence should be the one closest to the center of the
** input range.
**
** Ideally, the common sequence should be the longest possible common
** sequence.  However, an exact computation of LCS is O(N*N) which is
** way too slow for larger files.  So this routine uses an O(N)
** heuristic approximation based on hashing that usually works about
** as well.  But if the O(N) algorithm doesn't get a good solution
** and N is not too large, we fall back to an exact solution by
** calling optimalLCS().
*/
static void longestCommonSequence(
  DContext *p,               /* Two files being compared */
  int iS1, int iE1,          /* Range of lines in p->aFrom[] */

  iEXb = iEXp = iS1;
  iSYb = iSYp = iS2;
  iEYb = iEYp = iS2;
  mid = (iE1 + iS1)/2;
  for(i=iS1; i<iE1; i++){
    int limit = 0;
    j = p->aTo[p->aFrom[i].h % p->nTo].iHash;
    while( j>0
      && (j-1<iS2 || j>=iE2 || !same_dline(&p->aFrom[i], &p->aTo[j-1]))
    ){
      if( limit++ > 10 ){
        j = 0;
        break;
      }
      j = p->aTo[j-1].iNext;

    optimalLCS(p, iS1, iE1, iS2, iE2, piSX, piEX, piSY, piEY);
  }else{
    *piSX = iSXb;
    *piSY = iSYb;
    *piEX = iEXb;
    *piEY = iEYb;
  }
  /* printf("LCS(%d..%d/%d..%d) = %d..%d/%d..%d\n",
     iS1, iE1, iS2, iE2, *piSX, *piEX, *piSY, *piEY);  */
}

/*
** Do a single step in the difference.  Compute a sequence of
** copy/delete/insert steps that will convert lines iS1 through iE1-1 of
** the input into lines iS2 through iE2-1 of the output and write

  }
}

/*
** Generate a report of the differences between files pA and pB.
** If pOut is not NULL then a unified diff is appended there.  It
** is assumed that pOut has already been initialized.  If pOut is
** NULL, then a pointer to an array of integers is returned.
** The integers come in triples.  For each triple,
** the elements are the number of lines copied, the number of
** lines deleted, and the number of lines inserted.  The vector
** is terminated by a triple of all zeros.
**
** This diff utility does not work on binary files.  If a binary
** file is encountered, 0 is returned and pOut is written with
** text "cannot compute difference between binary files".
*/
int *text_diff(
  Blob *pA_Blob,   /* FROM file */
  Blob *pB_Blob,   /* TO file */
  Blob *pOut,      /* Write unified diff here if not NULL */
  int nContext,    /* Amount of context to unified diff */
  int ignoreEolWs  /* Ignore whitespace at the end of lines */
){
  DContext c;

  /* Prepare the input files */
  memset(&c, 0, sizeof(c));
  c.aFrom = break_into_lines(blob_str(pA_Blob), blob_size(pA_Blob),
                             &c.nFrom, ignoreEolWs);
  c.aTo = break_into_lines(blob_str(pB_Blob), blob_size(pB_Blob),
                           &c.nTo, ignoreEolWs);
  if( c.aFrom==0 || c.aTo==0 ){

  /* Clear out the diff results */
  free(p->c.aEdit);
  p->c.aEdit = 0;
  p->c.nEdit = 0;
  p->c.nEditAlloc = 0;

  /* Clear out the from file */
  free(p->c.aFrom);
  blob_zero(pParent);

  /* Return no errors */
  return 0;
}

  if( !content_get(rid, &toAnnotate) ){
    fossil_panic("unable to retrieve content of artifact #%d", rid);
  }
  db_multi_exec("CREATE TEMP TABLE ok(rid INTEGER PRIMARY KEY)");
  compute_ancestors(mid, 1000000000);
  annotation_start(p, &toAnnotate);

  db_prepare(&q,
    "SELECT mlink.fid,"
    "       (SELECT uuid FROM blob WHERE rid=mlink.%s),"
    "       date(event.mtime), "
    "       coalesce(event.euser,event.user) "
    "  FROM mlink, event"
    " WHERE mlink.fnid=%d"
    "   AND mlink.mid IN ok"

  while( db_step(&q)==SQLITE_ROW ){
    int pid = db_column_int(&q, 0);
    const char *zUuid = db_column_text(&q, 1);
    const char *zDate = db_column_text(&q, 2);
    const char *zUser = db_column_text(&q, 3);
    if( webLabel ){
      zLabel = mprintf(
          "<a href='%s/info/%s' target='infowindow'>%.10s</a> %s %9.9s",
          g.zTop, zUuid, zUuid, zDate, zUser
      );
    }else{
      zLabel = mprintf("%.10s %s %9.9s", zUuid, zDate, zUser);
    }
    p->nVers++;
    p->azVers = fossil_realloc(p->azVers, p->nVers*sizeof(p->azVers[0]) );

** Output the text of a file with markings to show when each line of
** the file was last modified.
**
** Options:
**   --limit N       Only look backwards in time by N versions
**   --log           List all versions analyzed
**   --filevers      Show file version numbers rather than check-in versions
**
**
** SUMMARY: fossil annotate FILENAME ?options?
** Options: --limit N, --log, --filevers
*/
void annotate_cmd(void){
  int fnid;         /* Filename ID */
  int fid;          /* File instance ID */
  int mid;          /* Manifest where file was checked in */
  Blob treename;    /* FILENAME translated to canonical form */
  char *zFilename;  /* Cannonical filename */

  if( showLog ){
    for(i=0; i<ann.nVers; i++){
      printf("version %3d: %s\n", i+1, ann.azVers[i]);
    }
    printf("---------------------------------------------------\n");
  }
  for(i=0; i<ann.nOrig; i++){
    fossil_print("%s: %.*s\n",
                 ann.aOrig[i].zSrc, ann.aOrig[i].n, ann.aOrig[i].z);
  }
}

** COMMAND: diff
** COMMAND: gdiff
**
** Usage: %fossil diff|gdiff ?options? ?FILE?
**
** Show the difference between the current version of FILE (as it
** exists on disk) and that same file as it was checked out.  Or
** if the FILE argument is omitted, show the unsaved changes currently
** in the working check-out.
**
** If the "--from VERSION" or "-r VERSION" option is used it specifies
** the source check-in for the diff operation.  If not specified, the
** source check-in is the base check-in for the current check-out.
**
** If the "--to VERSION" option appears, it specifies the check-in from
** which the second version of the file or files is taken.  If there is
** no "--to" option then the (possibly edited) files in the current check-out
** are used.
**
** The "-i" command-line option forces the use of the internal diff logic
** rather than any external diff program that might be configured using
** the "setting" command.  If no external diff program is configured, then
** the "-i" option is a no-op.  The "-i" option converts "gdiff" into "diff".
**
** The "-N" or "--new-file" option causes the complete text of added or
** deleted files to be displayed.
**
**
** SUMMARY: fossil diff ?options? ?FILE?
**          fossil gdiff ?options? ?FILE?
** Options: -i, --from VERSION, --to VERSION, -N|--new-file
**
*/
void diff_cmd(void){
  int isGDiff;               /* True for gdiff.  False for normal diff */
  int isInternDiff;          /* True for internal diff */
  int hasNFlag;              /* True if -N or --new-file flag is used */
  const char *zFrom;         /* Source version number */
  const char *zTo;           /* Target version number */

/*
** COMMAND: export
**
** Usage: %fossil export --git ?REPOSITORY?
**
** Write an export of all check-ins to standard output.  The export is
** written in the git-fast-export file format assuming the --git option is
** provided.  The git-fast-export format is currently the only VCS
** interchange format supported, though other formats may be added in
** the future.
**
** Run this command within a checkout or specify the name of the
** Fossil repository to be exported.
**
** Only check-ins are exported using --git.  Git does not support tickets
** or wiki or events or attachments, so none of those are exported.
**
**
** SUMMARY: fossil export --git ?REPOSITORY?
*/
void export_cmd(void){
  Stmt q;
  int i;
  int firstCkin;       /* Integer offset to check-in marks */
  Bag blobs, vers;
  bag_init(&blobs);
  bag_init(&vers);

  find_option("git", 0, 0);   /* Ignore the --git option for now */
  db_find_and_open_repository(0, 2);
  verify_all_options();
  if( g.argc!=2 && g.argc!=3 ){ usage("--git ?REPOSITORY?"); }

  /* Step 1:  Generate "blob" records for every artifact that is part
  ** of a check-in
  */
  fossil_binary_mode(stdout);
  db_prepare(&q, "SELECT DISTINCT fid FROM mlink WHERE fid>0");
  while( db_step(&q)==SQLITE_ROW ){
    int rid = db_column_int(&q, 0);
    Blob content;
    content_get(rid, &content);