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Overview
Comment:Changes to the root-tag processing to provide better error messages.
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Timelines: family | ancestors | descendants | both | root-tag
Files: files | file ages | folders
SHA1: 36134ce27581a8b7847a24150cc68e4db7dbdc1e
User & Date: drh 2012-07-14 11:40:12
Context
2012-07-14
16:51
Merge the root-tag branch into trunk. (check-in: 9f83e033 user: drh tags: trunk)
11:40
Changes to the root-tag processing to provide better error messages. (Closed-Leaf check-in: 36134ce2 user: drh tags: root-tag)
05:03
Add the branch= query parameter to the vdiff page. (check-in: 18797587 user: drh tags: root-tag)
Changes
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Changes to src/diffcmd.c. 

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  hasNFlag = find_option("new-file","N",0)!=0;
  if( hasNFlag ) diffFlags |= DIFF_NEWFILE;

  if( zBranch ){
    if( zTo || zFrom ){
      fossil_fatal("cannot use --from or --to with --branch");
    }
    zTo = mprintf("tag:%s", zBranch);
    zFrom = mprintf("root:%s", zBranch);
  }
  if( zTo==0 ){
    db_must_be_within_tree();
    verify_all_options();
    if( !isInternDiff ){
      zDiffCmd = db_get(isGDiff ? "gdiff-command" : "diff-command", 0);








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  hasNFlag = find_option("new-file","N",0)!=0;
  if( hasNFlag ) diffFlags |= DIFF_NEWFILE;

  if( zBranch ){
    if( zTo || zFrom ){
      fossil_fatal("cannot use --from or --to with --branch");
    }
    zTo = zBranch;
    zFrom = mprintf("root:%s", zBranch);
  }
  if( zTo==0 ){
    db_must_be_within_tree();
    verify_all_options();
    if( !isInternDiff ){
      zDiffCmd = db_get(isGDiff ? "gdiff-command" : "diff-command", 0);

Changes to src/info.c. 

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** manifest.  Return the number of errors.
*/
static Manifest *vdiff_parse_manifest(const char *zParam, int *pRid){
  int rid;

  *pRid = rid = name_to_rid_www(zParam);
  if( rid==0 ){


    webpage_error("Missing \"%s\" query parameter.", zParam);



    return 0;
  }
  if( !is_a_version(rid) ){
    webpage_error("Artifact %s is not a checkin.", P(zParam));
    return 0;
  }
  return manifest_get(rid, CFTYPE_MANIFEST);
................................................................................
  login_check_credentials();
  if( !g.perm.Read ){ login_needed(); return; }
  login_anonymous_available();

  zBranch = P("branch");
  if( zBranch && zBranch[0] ){
    cgi_replace_parameter("from", mprintf("root:%s", zBranch));
    cgi_replace_parameter("to", mprintf("tag:%s", zBranch));
  }
  pFrom = vdiff_parse_manifest("from", &ridFrom);
  if( pFrom==0 ) return;
  pTo = vdiff_parse_manifest("to", &ridTo);
  if( pTo==0 ) return;
  sideBySide = atoi(PD("sbs","1"));
  showDetail = atoi(PD("detail","0"));
  if( !showDetail && sideBySide ) showDetail = 1;
  if( !sideBySide ){
    style_submenu_element("Side-by-side Diff", "sbsdiff",
                          "%s/vdiff?from=%T&to=%T&detail=%d&sbs=1",
                          g.zTop, P("from"), P("to"), showDetail);








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** manifest.  Return the number of errors.
*/
static Manifest *vdiff_parse_manifest(const char *zParam, int *pRid){
  int rid;

  *pRid = rid = name_to_rid_www(zParam);
  if( rid==0 ){
    const char *z = P(zParam);
    if( z==0 || z[0]==0 ){
      webpage_error("Missing \"%s\" query parameter.", zParam);
    }else{
      webpage_error("No such artifact: \"%s\"", z);
    }
    return 0;
  }
  if( !is_a_version(rid) ){
    webpage_error("Artifact %s is not a checkin.", P(zParam));
    return 0;
  }
  return manifest_get(rid, CFTYPE_MANIFEST);
................................................................................
  login_check_credentials();
  if( !g.perm.Read ){ login_needed(); return; }
  login_anonymous_available();

  zBranch = P("branch");
  if( zBranch && zBranch[0] ){
    cgi_replace_parameter("from", mprintf("root:%s", zBranch));
    cgi_replace_parameter("to", zBranch);
  }
  pTo = vdiff_parse_manifest("to", &ridTo);
  if( pTo==0 ) return;
  pFrom = vdiff_parse_manifest("from", &ridFrom);
  if( pFrom==0 ) return;
  sideBySide = atoi(PD("sbs","1"));
  showDetail = atoi(PD("detail","0"));
  if( !showDetail && sideBySide ) showDetail = 1;
  if( !sideBySide ){
    style_submenu_element("Side-by-side Diff", "sbsdiff",
                          "%s/vdiff?from=%T&to=%T&detail=%d&sbs=1",
                          g.zTop, P("from"), P("to"), showDetail);

Changes to src/name.c. 

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      " WHERE mtime<=julianday('%qz') AND type GLOB '%q'"
      " ORDER BY mtime DESC LIMIT 1",
      &zTag[4], zType);
    return rid;
  }

  /* "tag:" + symbolic-name */
  if( memcmp(zTag, "tag:", 4)==0
   || memcmp(zTag, "root:", 5)==0
  ){
    int isRoot = zTag[0]=='r';
    rid = db_int(0,
       "SELECT event.objid"
       "  FROM tag, tagxref, event"
       " WHERE tag.tagname='sym-%q' "
       "   AND tagxref.tagid=tag.tagid AND tagxref.tagtype>0 "
       "   AND event.objid=tagxref.rid "
       "   AND event.type GLOB '%q'"
       " ORDER BY event.mtime DESC /*sort*/",
       &zTag[4+isRoot], zType
    );
    if( isRoot && rid>0 ){




      Stmt q;
      int rc;

      db_prepare(&q,
        "SELECT pid, EXISTS(SELECT 1 FROM tagxref"
                           " WHERE tagid=%d AND tagtype>0"
                           "   AND value=%Q AND rid=plink.pid)"
        "  FROM plink"
        " WHERE cid=:cid AND isprim",
        TAG_BRANCH, &zTag[5]
      );
      do{
        db_reset(&q);
        db_bind_int(&q, ":cid", rid);
        rc = db_step(&q);
        if( rc!=SQLITE_ROW ) break;
        rid = db_column_int(&q, 0);
      }while( db_column_int(&q, 1)==1 && rid>0 );
      db_finalize(&q);
    }
    return rid;
  }

  /* symbolic-name ":" date-time */
  nTag = strlen(zTag);
  for(i=0; i<nTag-10 && zTag[i]!=':'; i++){}
  if( zTag[i]==':' && is_date(&zTag[i+1]) ){








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      " WHERE mtime<=julianday('%qz') AND type GLOB '%q'"
      " ORDER BY mtime DESC LIMIT 1",
      &zTag[4], zType);
    return rid;
  }

  /* "tag:" + symbolic-name */
  if( memcmp(zTag, "tag:", 4)==0 ){



    rid = db_int(0,
       "SELECT event.objid"
       "  FROM tag, tagxref, event"
       " WHERE tag.tagname='sym-%q' "
       "   AND tagxref.tagid=tag.tagid AND tagxref.tagtype>0 "
       "   AND event.objid=tagxref.rid "
       "   AND event.type GLOB '%q'"
       " ORDER BY event.mtime DESC /*sort*/",
       &zTag[4], zType
    );

  }
  
  /* root:TAG -> The origin of the branch */
  if( memcmp(zTag, "root:", 5)==0 ){
    Stmt q;
    int rc;
    rid = symbolic_name_to_rid(zTag+5, zType);
    db_prepare(&q,
      "SELECT pid, EXISTS(SELECT 1 FROM tagxref"
                         " WHERE tagid=%d AND tagtype>0"
                         "   AND value=%Q AND rid=plink.pid)"
      "  FROM plink"
      " WHERE cid=:cid AND isprim",
      TAG_BRANCH, &zTag[5]
    );
    do{
      db_reset(&q);
      db_bind_int(&q, ":cid", rid);
      rc = db_step(&q);
      if( rc!=SQLITE_ROW ) break;
      rid = db_column_int(&q, 0);
    }while( db_column_int(&q, 1)==1 && rid>0 );
    db_finalize(&q);

    return rid;
  }

  /* symbolic-name ":" date-time */
  nTag = strlen(zTag);
  for(i=0; i<nTag-10 && zTag[i]!=':'; i++){}
  if( zTag[i]==':' && is_date(&zTag[i+1]) ){

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