1 | program linetime;
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2 |
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3 | {$mode objfpc}{$H+}
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4 |
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5 | uses
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6 | {$IFDEF UNIX}{$IFDEF UseCThreads}
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7 | cthreads,
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8 | {$ENDIF}{$ENDIF}
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9 | Classes, SysUtils, CustApp
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10 | { you can add units after this }
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11 | ,DateUtils, IOStream;
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12 |
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13 | type
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14 |
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15 | { TMyApplication }
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16 |
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17 | TMyApplication = class(TCustomApplication)
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18 | protected
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19 | procedure DoRun; override;
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20 | private
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21 | UseEscapeChars: Boolean;
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22 | TestMode: Boolean;
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23 | TestLineDelay: TDateTime;
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24 | TestString: string;
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25 | FirstLine: Boolean;
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26 | TextOnLine: Boolean;
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27 | StartTime: TDateTime;
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28 | NewLine: Boolean;
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29 | NewLineEnding: string;
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30 | ShowTime: Boolean;
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31 | LastLineTime: TDateTime;
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32 | LogFile: TFileStream;
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33 | LogEnabled: Boolean;
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34 | TermString: string;
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35 | TermStringIndex: Integer;
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36 | procedure TermCheckString(Buffer: string);
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37 | function FindLineEnding(Buffer: string; var FoundLineEnding: string): Integer;
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38 | procedure WriteRaw(Text: string);
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39 | procedure WriteLog(Text: string);
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40 | procedure PrintOutput(Output: string);
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41 | procedure ShowTimePrefix;
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42 | procedure ProcessBuffer(Buffer: string);
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43 | public
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44 | FormatCSV: Boolean;
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45 | constructor Create(TheOwner: TComponent); override;
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46 | destructor Destroy; override;
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47 | procedure WriteHelp; virtual;
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48 | end;
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49 |
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50 | { TMyApplication }
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51 |
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52 | procedure TMyApplication.DoRun;
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53 | var
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54 | ErrorMsg: String;
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55 | Buffer: string;
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56 | InputStream: TStream;
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57 | Count: Integer;
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58 | LogDir: string;
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59 | FileName: string;
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60 | begin
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61 | // Quick check parameters
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62 | ErrorMsg := CheckOptions('hclt:e', 'help csv log termstr escape');
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63 | if ErrorMsg <> '' then begin
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64 | ShowException(Exception.Create(ErrorMsg));
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65 | Terminate;
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66 | Exit;
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67 | end;
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68 |
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69 | // Parse parameters
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70 | if HasOption('h', 'help') then begin
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71 | WriteHelp;
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72 | Terminate;
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73 | Exit;
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74 | end;
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75 |
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76 | if HasOption('t', 'termstr') then begin
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77 | TermString := GetOptionValue('t', 'termstr');
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78 | end else TermString := '';
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79 |
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80 | FormatCSV := HasOption('c', 'csv');
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81 | UseEscapeChars := HasOption('e', 'escape');
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82 | LogEnabled := HasOption('l', 'log');
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83 | if LogEnabled then begin
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84 | LogDir := GetUserDir + DirectorySeparator + '.linetime' + DirectorySeparator + 'logs';
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85 | ForceDirectories(LogDir);
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86 | FileName := LogDir + DirectorySeparator + FormatDateTime('yyyymmddhhnnss', Now) + '.log';
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87 | LogFile := TFileStream.Create(FileName, fmCreate);
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88 | end;
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89 |
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90 | NewLine := True;
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91 | ShowTime := True;
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92 | FirstLine := True;
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93 | StartTime := Now;
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94 | LastLineTime := 0;
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95 | TermStringIndex := 1;
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96 | TextOnLine := False;
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97 | try
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98 | if TestMode then begin
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99 | InputStream := TMemoryStream.Create;
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100 | InputStream.Write(TestString[1], Length(TestString));
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101 | InputStream.Position := 0;
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102 | end else
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103 | InputStream := TIOStream.Create(iosInput);
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104 | repeat
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105 | SetLength(Buffer, 1000);
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106 | Count := InputStream.Read(Buffer[1], Length(Buffer));
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107 | SetLength(Buffer, Count);
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108 | ProcessBuffer(Buffer);
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109 | until (Count = 0) or Terminated;
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110 | NewLineEnding := LineEnding;
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111 | PrintOutput('');
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112 | finally
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113 | InputStream.Free;
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114 | end;
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115 | WriteRaw(LineEnding);
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116 | WriteLog(LineEnding);
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117 |
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118 | Terminate;
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119 | end;
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120 |
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121 | procedure TMyApplication.TermCheckString(Buffer: string);
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122 | var
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123 | I: Integer;
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124 | begin
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125 | // Search for termination string
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126 | if TermString <> '' then
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127 | for I := 1 to Length(Buffer) do begin
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128 | if TermStringIndex > Length(TermString) then begin
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129 | Terminate;
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130 | Break;
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131 | end;
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132 | if Buffer[I] = TermString[TermStringIndex] then
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133 | Inc(TermStringIndex)
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134 | else TermStringIndex := 1;
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135 | end;
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136 | end;
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137 |
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138 | function TMyApplication.FindLineEnding(Buffer: string; var FoundLineEnding: string): Integer;
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139 | const
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140 | LineEnding1 = #13#10;
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141 | LineEnding2 = #10;
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142 | LineEnding3 = #13;
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143 | var
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144 | P: Integer;
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145 | begin
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146 | Result := 0;
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147 | FoundLineEnding := '';
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148 |
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149 | P := Pos(LineEnding1, Buffer);
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150 | if (P > 0) and (((Result > 0) and (P < Result)) or (Result = 0)) then begin
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151 | Result := P;
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152 | FoundLineEnding := LineEnding1;
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153 | end;
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154 | P := Pos(LineEnding2, Buffer);
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155 | if (P > 0) and (((Result > 0) and (P < Result)) or (Result = 0)) then begin
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156 | Result := P;
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157 | FoundLineEnding := LineEnding2;
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158 | end;
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159 | P := Pos(LineEnding3, Buffer);
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160 | if (P > 0) and (((Result > 0) and (P < Result)) or (Result = 0)) then begin
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161 | Result := P;
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162 | FoundLineEnding := LineEnding3;
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163 | end;
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164 | end;
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165 |
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166 | procedure TMyApplication.WriteRaw(Text: string);
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167 | begin
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168 | Write(Text);
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169 | end;
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170 |
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171 | procedure TMyApplication.WriteLog(Text: string);
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172 | begin
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173 | if LogEnabled then begin
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174 | if Length(Text) > 0 then
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175 | LogFile.Write(Text[1], Length(Text));
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176 | end;
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177 | end;
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178 |
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179 | procedure TMyApplication.PrintOutput(Output: string);
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180 | begin
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181 | TermCheckString(Output);
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182 | if NewLine then begin
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183 | if not FirstLine then begin
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184 | // If previous line was empty then print time prefix before move to next line
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185 | if (not TextOnLine) then ShowTimePrefix;
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186 | if FormatCSV then begin
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187 | WriteRaw('"' + LineEnding);
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188 | end else begin
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189 | WriteRaw(NewLineEnding);
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190 | end;
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191 | TextOnLine := False;
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192 | end;
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193 | WriteLog(LineEnding);
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194 | NewLine := False;
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195 | FirstLine := False;
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196 | end;
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197 | if Length(Output) > 0 then TextOnLine := True;
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198 | if TextOnLine and ShowTime then begin
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199 | ShowTimePrefix;
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200 | ShowTime := False;
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201 | end;
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202 | WriteRaw(Output);
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203 | WriteLog(Output);
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204 | end;
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205 |
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206 | procedure TMyApplication.ShowTimePrefix;
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207 | var
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208 | LineTime: TDateTime;
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209 | TimeStr: string;
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210 | begin
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211 | LineTime := Now - StartTime;
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212 | TimeStr := FloatToStrF(LineTime / OneSecond, ffFixed, 10, 2);
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213 | if FormatCSV then begin
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214 | WriteRaw(TimeStr + ',' +
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215 | FloatToStrF((LineTime - LastLineTime) / OneSecond, ffFixed, 10, 2) + ',"');
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216 | end else begin
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217 | if UseEscapeChars then
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218 | WriteRaw(#$1b'[0;32m' + TimeStr + #$1b'[0m ')
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219 | else WriteRaw(TimeStr + ' ');
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220 | end;
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221 | WriteLog(TimeStr + ' ');
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222 | LastLineTime := LineTime;
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223 | Sleep(Trunc(TestLineDelay / OneMillisecond));
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224 | end;
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225 |
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226 | procedure TMyApplication.ProcessBuffer(Buffer: string);
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227 | var
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228 | P: Integer;
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229 | I: Integer;
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230 | Part: string;
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231 | FoundLineEnding: string;
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232 | begin
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233 | NewLineEnding := LineEnding;
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234 | repeat
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235 | FoundLineEnding := '';
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236 | P := FindLineEnding(Buffer, FoundLineEnding);
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237 | if P > 0 then begin
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238 | Part := Copy(Buffer, 1, P - 1);
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239 | if FormatCSV then
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240 | Part := StringReplace(Part, '"', '""', [rfReplaceAll]);
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241 | PrintOutput(Part);
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242 | NewLineEnding := FoundLineEnding;
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243 | Delete(Buffer, 1, P - 1 + Length(FoundLineEnding));
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244 | NewLine := True;
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245 | ShowTime := True;
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246 | end;
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247 |
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248 | until P = 0;
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249 | PrintOutput(Buffer);
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250 | end;
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251 |
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252 | constructor TMyApplication.Create(TheOwner: TComponent);
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253 | begin
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254 | inherited Create(TheOwner);
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255 | StopOnException := True;
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256 | TestLineDelay := 0;
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257 | TestMode := False;
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258 | //TestMode := True;
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259 | if TestMode then begin
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260 | TestLineDelay := 10 * OneMillisecond;
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261 | //TestString := 'Line 1'#13#10'Line 2'#13'Line 3'#10'Line 4 abcd abcd xyz'#13#10#13#10'Line 9'#13#13#10'Line 10';
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262 | TestString := 'sas'#13#13#10'Line 10';
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263 | end;
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264 | end;
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265 |
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266 | destructor TMyApplication.Destroy;
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267 | begin
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268 | FreeAndNil(LogFile);
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269 | inherited Destroy;
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270 | end;
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271 |
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272 | procedure TMyApplication.WriteHelp;
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273 | begin
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274 | WriteLn('Usage: ', ExeName, ' <parameters>');
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275 | WriteLn(' -h --help Show this help');
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276 | WriteLn(' -c --csv Print lines in CSV format');
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277 | WriteLn(' -l --log Log output to log files in ~/.linetime/logs');
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278 | WriteLn(' -t --termstr <string> Termination string');
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279 | WriteLn(' -e --escape Use escape characters for color change');
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280 | end;
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281 |
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282 | var
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283 | Application: TMyApplication;
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284 | begin
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285 | Application := TMyApplication.Create(nil);
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286 | Application.Run;
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287 | Application.Free;
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288 | end.
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289 |
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