LogEx plug-in

Author: jpderuiter (talk, contrib)

Links

LogEx.zip (67 KB)

LogEx thread on NSIS Discusion forum

Description

Version: 0.3.

LogEx is a logging plugin. It allows to append a string to a logfile and show this string in the status listbox and/or the status bar (like DetailPrint)

How To Use

Init DLL Function

LogEx::Init /NOUNLOAD [bTruncateFile] FileName

bTruncateFile

If true, truncate file, else append to existing file.

FileName

Log file name.

NOTE: The Init function will not create a directory when the path does not exist

Write DLL Function

LogEx::Write /NOUNLOAD [bWriteToStatusList [bWriteToStatusBar]] LogString

bWriteToStatusList

If equal to true, adds the string to the Status Listbox.

bWriteToStatusBar

If equal to true, adds the string to the Status Bar.

LogString

String to write to the logfile.

AddFile DLL Function

LogEx::AddFile /NOUNLOAD [ReadFromLine [ReadToLine]] Prefix FileName

ReadFromLine

Write from line <ReadFromLine> from the file to the logfile.

ReadToLine

Write to line <ReadToLine> from the file to the logfile.

Prefix

Prefix to add at the beginning of each new line.

FileName

File to add to the logfile.

Close DLL Function

LogEx::Close

Example

LogEx::Init /NOUNLOAD "$TEMP\log.txt"
LogEx::Write /NOUNLOAD "Write this line to the log file only"
LogEx::Write /NOUNLOAD true "Write this line to the log file and the status list box"
LogEx::Write /NOUNLOAD true true "Write this line to the log file, the status list box and the statusbar"
 
ExecDos::exec 'cmd /C dir' "" "$TEMP\output.log"
 
LogEx::Write /NOUNLOAD 'Write complete "dir" output to the log file with "   >" as prefix'
LogEx::AddFile /NOUNLOAD "   >" "$TEMP\output.log"
LogEx::Write /NOUNLOAD 'Write "dir" output from line3 to the log file with "   " as prefix'
LogEx::AddFile /NOUNLOAD 3 "   " "$TEMP\output.log"
LogEx::Write /NOUNLOAD 'Write "dir" output from line3 to line6 to the log file with "   " as prefix'
LogEx::AddFile /NOUNLOAD 3 6 "   " "$TEMP\output.log"
LogEx::Close
; Done

Output C:\Documents and Settings\Admin\Local Settings\Temp\output.log:

Write this line to the log file only
Write this line to the log file and the status list box
Write this line to the log file, the status list box and the statusbar
Write complete "dir" output to the log file with "   >" as prefix
   > Volume in drive C has no label.
   > Volume Serial Number is xxxx-xxxx
   > Directory of C:\
   >07-11-2006  18:06                 0 AUTOEXEC.BAT
   >07-11-2006  18:06                 0 CONFIG.SYS
   >01-02-2007  03:17    <DIR>          Documents and Settings
   >11-02-2007  13:50    <DIR>          Program Files
   >20-01-2007  09:06    <DIR>          SYSTEMTOOLS
   >07-02-2007  17:27    <DIR>          temp
   >12-02-2007  23:48    <DIR>          WINDOWS
   >               2 File(s)           78.807 bytes
   >               5 Dir(s)  33.130.020.864 bytes free
Write "dir" output from line3 to the log file with "   " as prefix
    Directory of C:\
   07-11-2006  18:06                 0 AUTOEXEC.BAT
   07-11-2006  18:06                 0 CONFIG.SYS
   01-02-2007  03:17    <DIR>          Documents and Settings
   11-02-2007  13:50    <DIR>          Program Files
   20-01-2007  09:06    <DIR>          SYSTEMTOOLS
   07-02-2007  17:27    <DIR>          temp
   12-02-2007  23:48    <DIR>          WINDOWS
                  2 File(s)           78.807 bytes
                  5 Dir(s)  33.130.020.864 bytes free
Write "dir" output from line3 to line6 to the log file with "   " as prefix
    Directory of C:\
   07-11-2006  18:06                 0 AUTOEXEC.BAT
   07-11-2006  18:06                 0 CONFIG.SYS
   01-02-2007  03:17    <DIR>          Documents and Settings

Notes

The LogEx::AddFile function is especially usefull in combination with execution of a console application (like ExecDos plug-in)

Version History

[version 0.1: 2007-02-12]

- Initial version.

[version 0.2: 2007-02-16]

- Fixed stack bug.
- Added parameter "bTruncateFile" to Init function
- Changed the way AddFile function reads the file (read the file at ones in a buffer allocated with VirtualAlloc)
- Added comments in sourcecode

[version 0.3: 2007-02-16]

- Fixed bug in AddFile with empty file

JP de Ruiter

http://www.deruiter.jp