Fossil

#if INTERFACE
/*
** Flag parameters to the text_diff() routine used to control the formatting
** of the diff output.
*/
#define DIFF_CONTEXT_MASK ((u64)0x0000ffff) /* Lines of context. Default if 0 */
#define DIFF_WIDTH_MASK   ((u64)0x00ff0000) /* side-by-side column width */
#define DIFF_IGNORE_SOLWS ((u64)0x01000000) /* Ignore start-of-line whitespace */
#define DIFF_IGNORE_EOLWS ((u64)0x02000000) /* Ignore end-of-line whitespace */
#define DIFF_SIDEBYSIDE   ((u64)0x04000000) /* Generate a side-by-side diff */
#define DIFF_VERBOSE      ((u64)0x08000000) /* Missing shown as empty files */
#define DIFF_INLINE       ((u64)0x00000000) /* Inline (not side-by-side) diff */
#define DIFF_BRIEF        ((u64)0x10000000) /* Show filenames only */
#define DIFF_HTML         ((u64)0x20000000) /* Render for HTML */
#define DIFF_LINENO       ((u64)0x40000000) /* Show line numbers */
#define DIFF_NOOPT        (((u64)0x01)<<32) /* Suppress optimizations (debug) */

    for(j=0; z[j] && z[j]!='\n'; j++){}
    k = j;
    s = 0;
    indent = 0;
    if( diffFlags & DIFF_IGNORE_EOLWS ){
      while( k>0 && fossil_isspace(z[k-1]) ){ k--; }
    }
    if( diffFlags & DIFF_IGNORE_SOLWS ){
      while( s<k && fossil_isspace(z[s]) ){
        if( z[s]=='\t' ){
          indent = ((indent+9)/8)*8;
        }else if( z[s]==' ' ){
          indent++;
        }
        s++;

  DContext c;

  if( diffFlags & DIFF_INVERT ){
    Blob *pTemp = pA_Blob;
    pA_Blob = pB_Blob;
    pB_Blob = pTemp;
  }
  ignoreWs = (diffFlags & (DIFF_IGNORE_SOLWS|DIFF_IGNORE_EOLWS))!=0;
  blob_to_utf8_no_bom(pA_Blob, 0);
  blob_to_utf8_no_bom(pB_Blob, 0);

  /* Prepare the input files */
  memset(&c, 0, sizeof(c));
  c.aFrom = break_into_lines(blob_str(pA_Blob), blob_size(pA_Blob),
                             &c.nFrom, diffFlags);

  }
}

/*
** Process diff-related command-line options and return an appropriate
** "diffFlags" integer.
**
**   --brief                Show filenames only    DIFF_BRIEF
**   --context|-c N         N lines of context.    DIFF_CONTEXT_MASK
**   --html                 Format for HTML        DIFF_HTML
**   --invert               Invert the diff        DIFF_INVERT
**   --ignore-space-at-eol  Ignore eol-whitespaces DIFF_IGNORE_EOLWS
**   --ignore-space-at-sol  Ignore sol-whitespaces DIFF_IGNORE_SOLWS
**   --linenum|-n           Show line numbers      DIFF_LINENO
**   --noopt                Disable optimization   DIFF_NOOPT
**   --side-by-side|-y      Side-by-side diff.     DIFF_SIDEBYSIDE
**   --unified              Unified diff.          ~DIFF_SIDEBYSIDE
**   -w                     Ignore all whitespaces DIFF_IGNORE_EOLWS|DIFF_IGNORE_SOLWS
**   --width|-W N           N character lines.     DIFF_WIDTH_MASK


*/
u64 diff_options(void){
  u64 diffFlags = 0;
  const char *z;
  int f;
  if( find_option("side-by-side","y",0)!=0 ) diffFlags |= DIFF_SIDEBYSIDE;
  if( find_option("unified",0,0)!=0 ) diffFlags &= ~DIFF_SIDEBYSIDE;
  if( (z = find_option("context","c",1))!=0 && (f = atoi(z))>=0 ){
    if( f > DIFF_CONTEXT_MASK ) f = DIFF_CONTEXT_MASK;
    diffFlags |= f + DIFF_CONTEXT_EX;
  }
  if( (z = find_option("width","W",1))!=0 && (f = atoi(z))>0 ){
    f *= DIFF_CONTEXT_MASK+1;
    if( f > DIFF_WIDTH_MASK ) f = DIFF_CONTEXT_MASK;
    diffFlags |= f;
  }
  if( find_option("html",0,0)!=0 ) diffFlags |= DIFF_HTML;
  if( find_option("ignore-space-at-sol",0,0)!=0 ) diffFlags |= DIFF_IGNORE_SOLWS;
  if( find_option("ignore-space-at-eol",0,0)!=0 ) diffFlags |= DIFF_IGNORE_EOLWS;
  if( find_option("w",0,0)!=0 ) diffFlags |= (DIFF_IGNORE_EOLWS|DIFF_IGNORE_SOLWS);
  if( find_option("linenum","n",0)!=0 ) diffFlags |= DIFF_LINENO;
  if( find_option("noopt",0,0)!=0 ) diffFlags |= DIFF_NOOPT;
  if( find_option("invert",0,0)!=0 ) diffFlags |= DIFF_INVERT;
  if( find_option("brief",0,0)!=0 ) diffFlags |= DIFF_BRIEF;
  return diffFlags;
}

  mid = name_to_typed_rid(PD("checkin","0"),"ci");
  zFilename = P("filename");
  fnid = db_int(0, "SELECT fnid FROM filename WHERE name=%Q", zFilename);
  if( mid==0 || fnid==0 ){ fossil_redirect_home(); }
  iLimit = atoi(PD("limit","20"));
  if( P("filevers") ) annFlags |= ANN_FILE_VERS;
  ignoreWs = P("w")!=0;
  if( ignoreWs ) diffFlags |= (DIFF_IGNORE_EOLWS|DIFF_IGNORE_SOLWS);
  if( !db_exists("SELECT 1 FROM mlink WHERE mid=%d AND fnid=%d",mid,fnid) ){
    fossil_redirect_home();
  }

  /* compute the annotation */
  compute_direct_ancestors(mid, 10000000);
  annotate_file(&ann, fnid, mid, iLimit, annFlags, diffFlags);

**
** Output the text of a file with markings to show when each line of
** the file was last modified.  The "annotate" command shows line numbers
** and omits the username.  The "blame" and "praise" commands show the user
** who made each checkin and omits the line number.
**
** Options:
**   --filevers             Show file version numbers rather than check-in versions
**   -l|--log               List all versions analyzed
**   -n|--limit N           Only look backwards in time by N versions
**   --ignore-space-at-eol  Ignore eol-whitespaces
**   --ignore-space-at-sol  Ignore sol-whitespaces
**   -w                     Ignore all whitespaces
**
** See also: info, finfo, timeline
*/
void annotate_cmd(void){
  int fnid;         /* Filename ID */
  int fid;          /* File instance ID */
  int mid;          /* Manifest where file was checked in */

  int bBlame = 0;   /* True for BLAME output.  False for ANNOTATE. */

  bBlame = g.argv[1][0]!='a';
  zLimit = find_option("limit","n",1);
  if( zLimit==0 || zLimit[0]==0 ) zLimit = "-1";
  iLimit = atoi(zLimit);
  showLog = find_option("log","l",0)!=0;
  if( find_option("ignore-space-at-sol",0,0)!=0 ) diffFlags |= DIFF_IGNORE_SOLWS;
  if( find_option("ignore-space-at-eol",0,0)!=0 ) diffFlags |= DIFF_IGNORE_EOLWS;
  if( find_option("w",0,0)!=0 ) diffFlags |= (DIFF_IGNORE_EOLWS|DIFF_IGNORE_SOLWS);
  fileVers = find_option("filevers",0,0)!=0;
  db_must_be_within_tree();
  if( g.argc<3 ) {
    usage("FILENAME");
  }
  file_tree_name(g.argv[2], &treename, 1);
  zFilename = blob_str(&treename);

** when using an external diff program.
**
** The "--binary" option causes files matching the glob PATTERN to be treated
** as binary when considering if they should be used with external diff program.
** This option overrides the "binary-glob" setting.
**
** Options:
**   --binary PATTERN       Treat files that match the glob PATTERN as binary
**   --branch BRANCH        Show diff of all changes on BRANCH
**   --brief                Show filenames only
**   --context|-c N         Use N lines of context
**   --diff-binary BOOL     Include binary files when using external commands
**   --from|-r VERSION      select VERSION as source for the diff
**   --ignore-space-at-eol  Ignore changes to end-of-line whitespace
**   --ignore-space-at-sol  Ignore changes to start-of-line whitespace
**   --internal|-i          use internal diff logic
**   --side-by-side|-y      side-by-side diff
**   --tk                   Launch a Tcl/Tk GUI for display
**   --to VERSION           select VERSION as target for the diff
**   --unified              unified diff
**   -v|--verbose           output complete text of added or deleted files
**   -w                     Ignore changes to start-of-line and end-of-line
**                          whitespace
**   -W|--width             Width of lines in side-by-side diff

*/
void diff_cmd(void){
  int isGDiff;               /* True for gdiff.  False for normal diff */
  int isInternDiff;          /* True for internal diff */
  int verboseFlag;           /* True if -v or --verbose flag is used */
  const char *zFrom;         /* Source version number */
  const char *zTo;           /* Target version number */

      if( x<0 || x>DIFF_WIDTH_MASK ) x = DIFF_WIDTH_MASK;
      diffFlags += x;
    }else{
      diffFlags = DIFF_INLINE;
    }

    if( P("w") ){
      diffFlags |= (DIFF_IGNORE_SOLWS|DIFF_IGNORE_EOLWS);
    }
    /* "dc" query parameter determines lines of context */
    x = atoi(PD("dc","7"));
    if( x<0 || x>DIFF_CONTEXT_MASK ) x = DIFF_CONTEXT_MASK;
    diffFlags += x;

    /* The "noopt" parameter disables diff optimization */

    verboseFlag = g.zPath[0]!='c';
    if( db_get_boolean("show-version-diffs", 0)==0 ){
      verboseFlag = !verboseFlag;
      zPage = "ci";
      zPageHide = "vinfo";
    }
    diffFlags = construct_diff_flags(verboseFlag, sideBySide);
    zW = (diffFlags&(DIFF_IGNORE_SOLWS|DIFF_IGNORE_EOLWS))?"&w":"";
    if( verboseFlag ){
      @ %z(xhref("class='button'","%R/%s/%T",zPageHide,zName))
      @ Hide&nbsp;Diffs</a>
      if( sideBySide ){
        @ %z(xhref("class='button'","%R/%s/%T?sbs=0%s",zPage,zName,zW))
        @ Unified&nbsp;Diffs</a>
      }else{

  zGlob = P("glob");
  zFrom = P("from");
  zTo = P("to");
  if(zGlob && !*zGlob){
    zGlob = NULL;
  }
  diffFlags = construct_diff_flags(verboseFlag, sideBySide);
  zW = (diffFlags&(DIFF_IGNORE_SOLWS|DIFF_IGNORE_EOLWS))?"&w":"";
  if( sideBySide || verboseFlag ){
    style_submenu_element("Hide Diff", "hidediff",
                          "%R/vdiff?from=%T&to=%T&sbs=0%s%T%s",
                          zFrom, zTo,
                          zGlob ? "&glob=" : "", zGlob ? zGlob : "", zW);
  }
  if( !sideBySide ){

  sideBySide = !is_false(PD("sbs","1"));
  zV1 = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", v1);
  zV2 = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", v2);
  diffFlags = construct_diff_flags(1, sideBySide) | DIFF_HTML;

  style_header("Diff");
  zW = (diffFlags&(DIFF_IGNORE_SOLWS|DIFF_IGNORE_EOLWS))?"&w":"";
  if( *zW ){
    diffFlags |= (DIFF_IGNORE_SOLWS|DIFF_IGNORE_EOLWS);
    style_submenu_element("Show Whitespace Changes", "Show Whitespace Changes",
                          "%s/fdiff?v1=%T&v2=%T&sbs=%d",
                          g.zTop, P("v1"), P("v2"), sideBySide);
  }else{
    style_submenu_element("Ignore Whitespace", "Ignore Whitespace",
                          "%s/fdiff?v1=%T&v2=%T&sbs=%d&w",
                          g.zTop, P("v1"), P("v2"), sideBySide);

  *  The [/reports] page now requires Read ("o") permissions. The "byweek"
     report now properly propagates the selected year through the event type
     filter links.
  *  The [/help/info | info command] now shows leaf status of the checkout.
  *  Add support for tunneling https through a http proxy (Ticket [e854101c4f]).
  *  Add option --empty to the "[/help?cmd=open | fossil open]" command.
  *  Enhanced [/help?cmd=/fileage|the fileage page] to support a glob parameter.
  *  Add --ignore-space-at-sol and --ignore-space-at-eol options to
     [/help?cmd=annotate|fossil annotate], [/help?cmd=blame|fossil blame],
     [/help?cmd=diff|fossil (g)diff], [/help?cmd=stash|fossil stash diff].
     The option -w activates both of them.
  *  Add button "Ignore Whitespace" to /annotate, /blame, /ci, /fdiff
     and /vdiff UI pages.

<h2>Changes For Version 1.28 (2014-01-27)</h2>
  *  Enhance [/help?cmd=/reports | /reports] to support event type filtering.
  *  When cloning a repository, the user name passed via the URL (if any)
     is now used as the default local admin user's name.