Findstr Returns No Errorlevel When Checking Build Log
Jenkins Is Calling a Batch Script. This Batch Script Builds A. Net Project with Msbuild, Which Is Logged to a Logfile. Now I Want to Check If the Build Has...
Jenkins is calling a batch script. This batch script builds a .NET project with msbuild, which is logged to a logfile.
Now I want to check if the build has failed. Part of this is done with these sort of commands:
findstr /N /C:"Build FAILED." %LOGFILE%
set "FINDSTRERR=%ERRORLEVEL%"
echo "FINDSTRERR: %FINDSTRERR%"
if "%FINDSTRERR%"=="0" (
echo "ERROR: Build failed."
exit 1
)
So the batch script searches the logfile for the string Build FAILED and if it is there, the batch script should exit with exit code 1.
When I look to the output of these files, I see this:
6164:Build FAILED.
"FINDSTRERR: "
and script is running futher. But I am expecting something like "FINDSTRERR: 0".
Why batch / findstr is not working here as expected?
1 Answer
FINDSTR will set %ERRORLEVEL% as follows:
0 (False) a match is found in at least one line of at least one file. 1 (True) if a match is not found in any line of any file, (or if the file is not found at all). 2 Wrong syntax An invalid switch will only print an error message in error stream.
- But I prefer not to do that with
if | else errorlevel [0-2], let me suggest that you try to manipulate the output command using && operators (do this) |or| (do this), when doing this mechanical process, you will do the same aserrorlevel(in an if else condition); in addition, it will not be necessary to create a variable (%FINDSTRERR%) and applying its value update.
By doing this jobs with the operators, you can create your own errorlevel 0 | 1 from operators && (1)||(0) according to your behavior:
@echo off && color 0a && setlocal enabledelayedexpansion & title ...\%~nx0
set "LOGFILE=D:\path\to\folder\where\are\the\file_log\target.log" && echo[
"%__APPDIR__%\findstr.exe" /N /L /C:"Build FAILED\." "!LOGFILE!" >nul && (
echo/ [1] ERROR: Build Failed^^!! ) || (echo/ [0] Build: Successfull^^!! )
"%__APPDIR__%timeout.exe" /t 2 >nul & endlocal && goto :EOF
- Output case
&&Build Failed. string match in file.log:
[1] ERROR: Build failed!
^---:> == your errorlevel
- Output case
||Build: Successfull!. string not match in file.log:
[0] Build: Successfull!
^---:> == your errorlevel
Obs.: - Edit: set "LOGFILE=D:\path\to\folder\where\are\the\file_log\target.log", with full drive:/path/to/file.log...
Sorry my limited English
Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.
