Fossil

#include <assert.h>

/*
** Diff option flags
*/
#define DIFF_NEWFILE  0x01    /* Treat non-existing fails as empty files */
#define DIFF_NOEOLWS  0x02    /* Ignore whitespace at the end of lines */

/*
** Output the results of a diff.  Output goes to stdout for command-line
** or to the CGI/HTTP result buffer for web pages.
*/
static void diff_printf(const char *zFormat, ...){
  va_list ap;
  va_start(ap, zFormat);
  if( g.cgiOutput ){
    cgi_vprintf(zFormat, ap);
  }else{
    vprintf(zFormat, ap);
  }
  va_end(ap);
}

/*
** Print the "Index:" message that patch wants to see at the top of a diff.
*/
void diff_print_index(const char *zFile){
  diff_printf("Index: %s\n======================================="
              "============================\n", zFile);
}

/*
** Show the difference between two files, one in memory and one on disk.
**
** The difference is the set of edits needed to transform pFile1 into
** zFile2.  The content of pFile1 is in memory.  zFile2 exists on disk.

      zName2 = zName;
    }

    /* Compute and output the differences */
    blob_zero(&out);
    text_diff(pFile1, &file2, &out, 5, ignoreEolWs);
    if( blob_size(&out) ){
      diff_printf("--- %s\n+++ %s\n", zName, zName2);
      diff_printf("%s\n", blob_str(&out));
    }

    /* Release memory resources */
    blob_reset(&file2);
    blob_reset(&out);
  }else{
    int cnt = 0;

  int ignoreEolWs           /* Ignore whitespace at end of lines */
){
  if( zDiffCmd==0 ){
    Blob out;      /* Diff output text */

    blob_zero(&out);
    text_diff(pFile1, pFile2, &out, 5, ignoreEolWs);
    diff_printf("--- %s\n+++ %s\n", zName, zName);
    diff_printf("%s\n", blob_str(&out));

    /* Release memory resources */
    blob_reset(&out);
  }else{
    Blob cmd;
    char zTemp1[300];
    char zTemp2[300];

    int isChnged = db_column_int(&q,2);
    int isNew = db_column_int(&q,3);
    int srcid = db_column_int(&q, 4);
    char *zFullName = mprintf("%s%s", g.zLocalRoot, zPathname);
    char *zToFree = zFullName;
    int showDiff = 1;
    if( isDeleted ){
      diff_printf("DELETED  %s\n", zPathname);
      if( !asNewFile ){ showDiff = 0; zFullName = "/dev/null"; }
    }else if( access(zFullName, 0) ){
      diff_printf("MISSING  %s\n", zPathname);
      if( !asNewFile ){ showDiff = 0; }
    }else if( isNew ){
      diff_printf("ADDED    %s\n", zPathname);
      srcid = 0;
      if( !asNewFile ){ showDiff = 0; }
    }else if( isChnged==3 ){
      diff_printf("ADDED_BY_MERGE %s\n", zPathname);
      srcid = 0;
      if( !asNewFile ){ showDiff = 0; }
    }
    if( showDiff ){
      Blob content;
      if( srcid>0 ){
        content_get(srcid, &content);

      cmp = +1;
    }else if( pToFile==0 ){
      cmp = -1;
    }else{
      cmp = fossil_strcmp(pFromFile->zName, pToFile->zName);
    }
    if( cmp<0 ){
      diff_printf("DELETED %s\n", pFromFile->zName);
      if( asNewFlag ){
        diff_manifest_entry(pFromFile, 0, zDiffCmd, ignoreEolWs);
      }
      pFromFile = manifest_file_next(pFrom,0);
    }else if( cmp>0 ){
      diff_printf("ADDED   %s\n", pToFile->zName);
      if( asNewFlag ){
        diff_manifest_entry(0, pToFile, zDiffCmd, ignoreEolWs);
      }
      pToFile = manifest_file_next(pTo,0);
    }else if( fossil_strcmp(pFromFile->zUuid, pToFile->zUuid)==0 ){
      /* No changes */
      pFromFile = manifest_file_next(pFrom,0);
      pToFile = manifest_file_next(pTo,0);
    }else{
      diff_printf("CHANGED %s\n", pFromFile->zName);
      diff_manifest_entry(pFromFile, pToFile, zDiffCmd, ignoreEolWs);
      pFromFile = manifest_file_next(pFrom,0);
      pToFile = manifest_file_next(pTo,0);
    }
  }
  manifest_destroy(pFrom);
  manifest_destroy(pTo);

    if( g.argc==3 ){
      diff_one_two_versions(zFrom, zTo, zDiffCmd, 0);
    }else{
      diff_all_two_versions(zFrom, zTo, zDiffCmd, diffFlags);
    }
  }
}

/*
** WEBPAGE: vpatch
** URL vpatch?from=UUID&to=UUID
*/
void vpatch_page(void){
  const char *zFrom = P("from");
  const char *zTo = P("to");
  login_check_credentials();
  if( !g.okRead ){ login_needed(); return; }
  if( zFrom==0 || zTo==0 ) fossil_redirect_home();

  cgi_set_content_type("text/plain");
  diff_all_two_versions(zFrom, zTo, 0, DIFF_NEWFILE);
}

** "show-version-diffs" setting is turned on.
*/
void ci_page(void){
  Stmt q;
  int rid;
  int isLeaf;
  int showDiff;
  const char *zName;   /* Name of the checkin to be displayed */
  const char *zUuid;   /* UUID of zName */
  const char *zParent; /* UUID of the parent checkin (if any) */

  login_check_credentials();
  if( !g.okRead ){ login_needed(); return; }
  zName = P("name");
  rid = name_to_rid_www("name");
  if( rid==0 ){
    style_header("Check-in Information Error");
    @ No such object: %h(g.argv[2])
    style_footer();
    return;
  }
  zUuid = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", rid);
  zParent = db_text(0,
    "SELECT uuid FROM plink, blob"
    " WHERE plink.cid=%d AND blob.rid=plink.pid AND plink.isprim",
    rid
  );
  isLeaf = !db_exists("SELECT 1 FROM plink WHERE pid=%d", rid);
  db_prepare(&q, 
     "SELECT uuid, datetime(mtime, 'localtime'), user, comment,"
     "       datetime(omtime, 'localtime')"
     "  FROM blob, event"
     " WHERE blob.rid=%d"
     "   AND event.objid=%d",

      }
      db_finalize(&q);
    }
    if( g.okHistory ){
      const char *zProjName = db_get("project-name", "unnamed");
      @ <tr><th>Timelines:</th><td>
      @   <a href="%s(g.zTop)/timeline?f=%S(zUuid)">family</a>
      if( zParent ){
        @ | <a href="%s(g.zTop)/timeline?p=%S(zUuid)">ancestors</a>
      }
      if( !isLeaf ){
        @ | <a href="%s(g.zTop)/timeline?d=%S(zUuid)">descendants</a>
      }
      if( zParent && !isLeaf ){
        @ | <a href="%s(g.zTop)/timeline?d=%S(zUuid)&amp;p=%S(zUuid)">both</a>
      }
      db_prepare(&q, "SELECT substr(tag.tagname,5) FROM tagxref, tag "
                     " WHERE rid=%d AND tagtype>0 "
                     "   AND tag.tagid=tagxref.tagid "
                     "   AND +tag.tagname GLOB 'sym-*'", rid);
      while( db_step(&q)==SQLITE_ROW ){
        const char *zTagName = db_column_text(&q, 0);
        @  | <a href="%s(g.zTop)/timeline?r=%T(zTagName)">%h(zTagName)</a>

    @ </table>
  }else{
    style_header("Check-in Information");
    login_anonymous_available();
  }
  db_finalize(&q);
  showTags(rid, "");
  if( zParent ){
    @ <div class="section">Changes</div>
    showDiff = g.zPath[0]!='c';
    if( db_get_boolean("show-version-diffs", 0)==0 ){
      showDiff = !showDiff;
      if( showDiff ){
        @ <a href="%s(g.zTop)/vinfo/%T(zName)">[hide&nbsp;diffs]</a>
      }else{
        @ <a href="%s(g.zTop)/ci/%T(zName)">[show&nbsp;diffs]</a>
      }
    }else{
      if( showDiff ){
        @ <a href="%s(g.zTop)/ci/%T(zName)">[hide&nbsp;diffs]</a>
      }else{
        @ <a href="%s(g.zTop)/vinfo/%T(zName)">[show&nbsp;diffs]</a>
      }
    }
    @ &nbsp;&nbsp;
    @ <a href="%s(g.zTop)/vpatch?from=%S(zParent)&to=%S(zUuid)">[patch]</a><br/>
    db_prepare(&q,
       "SELECT name,"
       "       (SELECT uuid FROM blob WHERE rid=mlink.pid),"
       "       (SELECT uuid FROM blob WHERE rid=mlink.fid)"
       "  FROM mlink JOIN filename ON filename.fnid=mlink.fnid"
       " WHERE mlink.mid=%d"
       " ORDER BY name",
       rid
    );
    while( db_step(&q)==SQLITE_ROW ){
      const char *zName = db_column_text(&q,0);
      const char *zOld = db_column_text(&q,1);
      const char *zNew = db_column_text(&q,2);
      append_file_change_line(zName, zOld, zNew, showDiff);
    }
    db_finalize(&q);
  }
  style_footer();
}

/*
** WEBPAGE: winfo
** URL:  /winfo?name=RID
**