I am doing multi-host testing in Beaker, where one recipe is waiting for a command in another recipe to complete. I want to vary the behaviour based on whether the command in the other recipe succeeded or failed.
Is there any way I can communicate the exit status of a command from one recipe to another?
(Based on a mailing list discussion from March 2014.)
Beaker doesn't provide any mechanism for passing arbitrary data between recipes in a recipe set. There is only rhts-sync-set/rhts-sync-block for synchronization.
However you can still (ab)use those to achieve what you want. The trick is to use two separate sync states. Let's call them CMD_SUCCEEDED and CMD_FAILED (use more specific names if you want).
The first recipe sets CMD_SUCCEEDED if the command succeeded or CMD_FAILED if the command failed.
do_something_important
if [ $? -eq 0 ] ; then
rhts-sync-set -s CMD_SUCCEEDED
else
rhts-sync-set -s CMD_FAILED
fi
Then your other recipe can wait on either state (by passing two -s options) and then test which one was reached (by passing --timeout 0):
rhts-sync-block -s CMD_SUCCEEDED -s CMD_FAILED $CLIENTS
if rhts-sync-block -s CMD_SUCCEEDED --timeout 0 $CLIENTS ; then
# command succeeded
else
# command failed
fi
(This idea was originally suggested by Nick Coghlan.)
Related
how to fail the GO build based on the sonar quality gate?
I expect the stage to be failed when gateway fails. Is there any configurations that can be done to fail the build
Based on #moritz answer, this worked for me.
I created a bat file that would check for the status code of the SONAR project, after the SONAR build is executed and based on the status of the response, would return the exit code.
For /F "Delims=" %%A In ('"curl http://mysonarserver/api/qualitygates/project_status?projectKey=com.mypackage:sampleproject | jq ".projectStatus.status""') Do Set "test=%%~A"
echo %test%
If /I "%test%"=="ERROR" exit -1
If /I "%test%"=="OK" exit 0
In my case, the SONAR server would return ERROR and OK based on the status of the build.
I have used curl and jq for making the http request from the command line and to parse the response to json respectively.
I had to do some tweaking to make it work on Windows, hopefully it should work on Linux as well.
You can also add the call to the Maven build for Sonar from this script if needed.
I hope it helps!
GoCD fails the task (and thus stage and job, unless configured otherwise) when the exit code is non-zero.
So you need to bring whatever command you are executing to indicate a failure through a non-zero exit code (which most UNIX commands do).
I am currently trying to install NIST's sclite, which is part of SCTK 2.4.0 (github or newer version). I am attempting the install on Cygwin in bash. The installation is done using make.
I have gotten past the make configure and make all parts of the installation. This didn't come without some effort (See the SO posts on the first (file not recognized) and second (template/scoping) problems). When I get to the make check part of the install, a lot of the checks/tests pass, but then I get the following error.
Testing acomp.pl
No tests defined for acomp.pl
make[2]: Leaving directory '/cygdrive/c/David/programs/sctk2.4.0/sctk/src/acomp'
(cd def_art; make check)
make[2]: Entering directory '/cygdrive/c/David/programs/sctk2.4.0/sctk/src/def_art'
Testing def_art.pl
def_art.pl passed without tests
make[2]: Leaving directory '/cygdrive/c/David/programs/sctk2.4.0/sctk/src/def_art'
(cd hubscr; make check)
make[2]: Entering directory '/cygdrive/c/David/programs/sctk2.4.0/sctk/src/hubscr'
Testing hubscr.pl
./RunTests.pl
Running test 'test1-sastt', operation 'test', options '-G -f rttm -F rttm -a', directory 'test1-sastt.test'
Executing command
Error: unable to get the version for program def_art.pl with the command 'def_art.pl' at ../hubscr.pl line 419.
Error: Execution failed at ./RunTests.pl line 30.
make[2]: *** [makefile:20: check] Error 2
make[2]: Leaving directory '/cygdrive/c/David/programs/sctk2.4.0/sctk/src/hubscr'
make[1]: *** [makefile:68: checkFast] Error 2
make[1]: Leaving directory '/cygdrive/c/David/programs/sctk2.4.0/sctk/src'
make: *** [makefile:52: check] Error 2
I've done some research (described below), and I've been able to get past this problem. However, this involved including some outdated perl modules (Perl4).
My first question was how to fix this error or how to skip that part of the test. I've been able to fix the error, and if people think that it's safe, I'll put it as an answer. Note that there is one more problem with make check after this problem is fixed, but I mention how to get past that at the end.
I'm wondering if using the old Perl (Perl4::CoreLibs) is safe and/or good programming practice. Would it be better to change the source code to use Perl5 stuff?
Is there a better way altogether?
One thing I want to be sure of is that there are no critical tests further down the make check line which might fail.
System Details
$ uname -a
CYGWIN_NT-6.1 CAP-D-ENG-INT3 2.10.0(0.325/5/3) 2018-02-02 15:16 x86_64 Cygwin
$ bash --version
GNU bash, version 4.4.12(3)-release (x86_64-unknown-cygwin) ...
$ gcc --version
gcc (GCC) 6.4.0 ...
$ g++ --version
g++ (GCC) 6.4.0 ...
$ make --version
GNU Make 4.2.1
Built for x86_64-unknown-cygwin ...
$ systeminfo | sed -n 's/^OS\ *//p'
Name: Microsoft Windows 7 Enterprise
Version: 6.1.7601 Service Pack 1 Build 7601
Manufacturer: Microsoft Corporation
Configuration: Member Workstation
Build Type: Multiprocessor Free
My Attempts/Research
From the output above, we have def_art.pl passing the check because there are no checks - "def_art.pl passed without tests". However, the next thing checked, hubscr.pl, failed. The error comes from def_art.pl.
The obvious thing to do seemed to be to run def_art.pl, which I did.
$ ./src/def_art/def_art.pl
Can't locate getopts.pl in #INC
(#INC contains: /usr/local/lib/perl5/site_perl/5.26/x86_64-cygwin-threads /usr/local/share/perl5/site_perl/5.26 /usr/lib/perl5/vendor_perl/5.26/x86_64-cygwin-threads /usr/share/perl5/vendor_perl/5.26 /usr/lib/perl5/5.26/x86_64-cygwin-threads /usr/share/perl5/5.26)
at ./src/def_art/def_art.pl line 40.
So it seems to me that this is a deprecated perl file (or module, or whatever).
I dug a little further and found this discussion on a kaldi discussion from 2014. (kaldi is a speech-recognition toolkit that uses the SCTK scoring system). There are 3 sections of the discussion that I think are especially relevant, which I will link (first, second, third). I'll insert parts here:
def_art.pl is looking for getopts.pl which I coudn't find on my machine!
... [T]hese are legacy packages that are no longer supported in recent versions
of Perl 5. I don't think we should accept a dependency on them. They have
been deprecated since the beginning of Perl 5.
Instead of 'require "getopt.pl"', we should be doing
use Getopt::Std
(note: modern perl code should not call "require" for system packages).
There is a similar issue with "flush.pl" in the Perl scripts. I don't know
what the Perl 5 package name is.
... There are several places where this occurs.
I finally found that both getopts.pl and flush.pl are available from Perl4::CoreLibs. The URL that I use for wget was referenced at this site. Apparently, in other *NIX distros, the package manager can be used, e.g.
apt-get install libperl4-corelibs-perl
or
yum install perl-Perl4-CoreLibs
but I could not find an install via apt-cyg. I was able to install them from a tarball, as described in the What I'm Doing section.
One again, I'll state my main question: Is this safe/good programming practice? Is there a better solution?
If there is a better solution (using Perl 5), it seems that this link might lead the way to it.
Some other links that are possibly related: link_{n} and link{n+1} about flush.pl, link_{n+2} & link_{n+3} about getopts.pl and Perl4::CoreLibs.
What I'm Doing
$ mkdir perl_added
$ cd perl_added
$ wget http://search.cpan.org/CPAN/authors/id/Z/ZE/ZEFRAM/Perl4-CoreLibs-0.004.tar.gz
$ tar -xzf Perl4-CoreLibs-0.004.tar.gz
$ cd Perl4-CoreLibs-0.004
Rather than adding this directory's lib subdirectory to the PERLLIB environment variable with a one-time command-line, environment-variable-addition thing, I did the following.
Make a new directory in the /usr/lib directory, move the files there
$ stat /usr/lib/libperl4-corelibs-perl
stat: cannot stat '/usr/lib/libperl4-corelibs-perl': No such file or directory
# Checked that the directory didn't already exist. It didn't exist.
$ mkdir /usr/lib/libperl4-corelibs-perl
# Make each file executable, then move it into the new directory
# I'd like to come back and explain this.
$ find ./lib -type f -name "*.pl" -print0 | xargs -I'{}' -0 \
bash -c 'new_dir=/usr/lib/libperl4-corelibs-perl/; chmod +x {}; \
mv {} ${new_dir}'
Finally, I made it so that this directory will become part of the perl search path every time I use a terminal by adding the following line to my ~/.bashrc
This command adds the path to the PERLLIB environment variable. Different flavors of Linux have different syntax for adding to environment variables, make sure to find out what yours is!
export PERLLIB="/usr/bin/libperl4-corelibs-perl:$PERLLIB"
The commands I ran for this were
$ echo -e "\n\n## Allow Perl to use the files in Perl4::CoreLibs" >> $HOME/.bashrc
$ echo -e "export PERLLIB=\"/usr/lib/libperl4_corelibs_perl:$PERLLIB\"" >> $HOME/.bashrc
$ source $HOME/.bashrc
(Thanks to #melpomene for noting that the current version is 0.004, not 0.003.)
After that, I went back to the base folder of the install and ran make clean, make config, make all, and make check.
That did get me farther in the make check but not by far.
I'm wondering if using the old Perl (Perl4::CoreLibs) is safe and/or good programming practice. Would it be better to change the source code to use Perl5 stuff?
P.S. After all this, you probably want to go back and delete the folder where you untarred everything. In my case:
rm -rf /path/to/where/I/started/perl_added
The Result/Next Steps
A bunch of tests that passed and then
(cd hubscr; make check)
make[2]: Entering directory '/cygdrive/c/David/programs/sctk2.4.0/sctk/src/hubscr'
Testing hubscr.pl
./RunTests.pl
Running test 'test1-sastt', operation 'test', options '-G -f rttm -F rttm -a', directory 'test1-sastt.test'
Executing command
Unescaped left brace in regex is illegal here in regex; marked by <-- HERE in m/{_recursive_/_recur_{ <-- HERE _sive_/_si_ve_}_}/ at ../../md-eval/md-eval.pl line 1099, <DATA> line 12.
Error: MDEVAL failed
Command: md-eval.pl -nafcs -c 0.25 -o -r sastt-case1.ref.rttm.filt -s sastt-case1.sys.rttm.filt -M sastt-case1.sys.rttm.filt.mdeval.spkrmap 1> sastt-case1.sys.rttm.filt.mdeval at ../hubscr.pl line 679.
Error: Execution failed at ./RunTests.pl line 30.
make[2]: *** [makefile:20: check] Error 255
make[2]: Leaving directory '/cygdrive/c/David/programs/sctk2.4.0/sctk/src/hubscr'
make[1]: *** [makefile:68: checkFast] Error 2
make[1]: Leaving directory '/cygdrive/c/David/programs/sctk2.4.0/sctk/src'
make: *** [makefile:52: check] Error 2
Maybe this will be helpful. I will post a separate question for this issue or, if the solution is quick, I will add the solution on this post.
A Better Way
(Actually, a couple of better ways. See my comment under the question for the kaldi solution.)
In talking with colleagues and friends, it seems that there isn't anything unsafe about the Perl4 stuff. I did find a better way to get them "installed", but I'll leave the notes in the question showing the "long way" with the tarball, PERLPATH, etc.
Check that you have CPAN
$ which cpan
If you see something starting with which: no cpan in (...), you most likely don't have it. Try installing perl. For me, on Cygwin, I used
$ apt-cyg install perl
(Install apt-cyg if necessary, cf. here for instructions.)
You probably won't have to install Perl. You will likely see something like /usr/bin/cpan as the output of which cpan. If so, you're good. Enter cpan at the command prompt.
$ cpan
If it's your first time, it will ask a bunch of questions about the configuration. I just pressed "Enter" to accept the default each time, I finally got a prompt like this:
cpan shell -- CPAN exploration and modules installation (v2.18)
Enter 'h' for help.
cpan[1]>
There, I entered
cpan[1]> install Perl4::CoreLibs
The install will proceed. When it will have finished, you will be able to type exit and press "Enter", which will take you back to the bash command prompt.
cpan[2]> exit
Lockfile removed.
$
At this point, make check will still choke, but the install will complete successfully. If you want the make check to get all the way through, go to the "Getting past make check" section below. At this point, though, you can do the last two steps in the process.
$ make install
At this point I added the install path to my PATH variable. Hopefully, I'll be able to put in a link about that process. Here is a one-time solution.
$ export PATH=/path/to/sctk/bin:$PATH
Here is a lasting solution.
Now, for the last step in the installation process:
$ make doc
After the make doc, I made sure that the man pages were available. I looked on my machine until I found the place where other man files went. (Sorry, I don't have a systematic way of doing it, I just looked in a lot of places.) For me, on Cygwin, the directory was /usr/man/man1
I went into the doc directory
cd doc
and copied all of the files into the directory I had found
cp -r ./* /usr/man/man1/
Note that there are also now html and htm files in the directory that also provide documentation.
Getting past `make check`
So, you really want to see it go through without errors. You need to change the following file: src/hubscr/RunTests.pl
Originally it has the following beginning, which I have used the head command to show.
$ head -n 15 src/hubscr/RunTests.pl
#!/usr/bin/perl -w
use strict;
my $operation = (defined($ARGV[0]) ? $ARGV[0] : "test");
sub runIt{
my ($op, $testId, $options, $glm, $hub, $lang, $ref, $systems) = #_;
my $baseDir = $testId.".base";
my $outDir = $testId.($op eq "setTests" ? ".base" : ".test");
print " Running test '$testId', operation '$op', options '$options',
directory '$outDir'\n";
system ("mkdir -p $outDir");
system ("rm -fr $outDir/test* $outDir/lvc*");
### Copy files
foreach my $file($glm, $ref, split(/\s+/,$systems)){
system("cp $file $outDir");
Change it so that, after the print command, you have new lines as follows. I again use the head command to show the beginning of the file
$ head -n 63 src/hubscr/RunTests.pl
#!/usr/bin/perl -w
use strict;
my $operation = (defined($ARGV[0]) ? $ARGV[0] : "test");
sub runIt{
my ($op, $testId, $options, $glm, $hub, $lang, $ref, $systems) = #_;
my $baseDir = $testId.".base";
my $outDir = $testId.($op eq "setTests" ? ".base" : ".test");
print " Running test '$testId', operation '$op', options '$options', directory '$outDir'\n";
####DWB, 2018-05-21 Getting `make check` to work####
if ( $testId eq "test1-sastt" &&
$operation eq "test" &&
$options eq "-G -f rttm -F rttm -a" &&
$outDir eq "test1-sastt.test" ) # <problem 1>
{
print "\n";
print "\n#### SKIPPING ####";
print "\nJust kidding. That breaks the make.";
print "\nIt said: \n\n";
print "\nUnescaped left brace in regex is illegal here in regex; marked by <-- HERE in m/{_recursive_/_recur_{ <-- HERE _sive_/_si_ve_}_}/ at ../../md-eval/md-eval.pl line 1099, <DATA> line 12.";
print "\nrror: MDEVAL failed";
print "\nCommand: md-eval.pl -nafcs -c 0.25 -o -r sastt-case1.ref.rttm.filt -s sastt-case1.sys.rttm.filt -M sastt-case1.sys.rttm.filt.mdeval.spkrmap 1> sastt-case1.sys.rttm.filt.mdeval at ../hubscr.pl line 679.";
print "\nError: Execution failed at ./RunTests.pl line 30.\n\n";
print "\n"
print "\nThat's a perl legacy problem, see:"
print "\n[https://unix.stackexchange.com/a/375505/291375][1]"
print "\nI'm outta here.";
print "\n Sincerely, bballdave025";
print "\n";
print "\n";
return;
}#endof: if (<problem 1>)
if ( $testId eq "test2-sastt" &&
$operation eq "test" &&
$options eq "-G -f rttm -F rttm -a" &&
$outDir eq "test2-sastt.test" ) # <problem 2>
{
print "\n";
print "\n#### SKIPPING ####";
print "\nJust kidding. That breaks the make.";
print "\nIt said: \n\n";
print "\nError: Test test2-sastt has failed. Diff output is :";
print "\ndiff -i -x CVS -x .DS_Store -x log -x '*lur' -I '[cC]reation[ _]date' -I md-eval -r test2-sastt.test/sastt-case2.sys.rttm.filt.alignments/segmentgroup-116.html test2-sastt.base/sastt-case2.sys.rttm.filt.alignments/segmentgroup-116.html";
print "\n 45c45";
print "\n < jg.drawStringRect(\"SUB48\",0, 47, scale*656, \"left\");";
print "\n ---";
print "\n#### and a whole bunch of other draw stuff! ####";
print "\n1 at ./RunTests.pl line 61.\n\n";
print "\n"
print "\nThat looks like Java drawing code, and I don't"
print "\neven want to mess with it!"
print "\nI'm outta here.";
print "\n Sincerely, bballdave025";
print "\n";
print "\n";
return;
}#endof: if (<problem 2>)
system ("mkdir -p $outDir")
Now you should be able to get through. Try it:
make check
When I deploy Apache Mesos on Ubuntu12.04, I follow the official document, in step "make -j 8" I'm getting this error in the console:
g++: internal compiler error: Killed (program cc1plus)
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.9/README.Bugs> for instructions.
make[2]: *** [slave/containerizer/mesos/libmesos_no_3rdparty_la-containerizer.lo] Error 1
make[2]: *** Waiting for unfinished jobs....
mv -f log/.deps/liblog_la-log.Tpo log/.deps/liblog_la-log.Plo
mv -f slave/containerizer/.deps/libmesos_no_3rdparty_la-docker.Tpo slave/containerizer/.deps/libmesos_no_3rdparty_la-docker.Plo
mv -f log/.deps/liblog_la-consensus.Tpo log/.deps/liblog_la-consensus.Plo
mv -f slave/containerizer/.deps/libmesos_no_3rdparty_la-external_containerizer.Tpo slave/containerizer/.deps/libmesos_no_3rdparty_la-external_containerizer.Plo
mv -f log/.deps/liblog_la-coordinator.Tpo log/.deps/liblog_la-coordinator.Plo
mv -f slave/.deps/libmesos_no_3rdparty_la-slave.Tpo slave/.deps/libmesos_no_3rdparty_la-slave.Plo
mv -f master/.deps/libmesos_no_3rdparty_la-master.Tpo master/.deps/libmesos_no_3rdparty_la-master.Plo
make[2]: Leaving directory `/root/Mesos/mesos/build/src'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/root/Mesos/mesos/build/src'
make: *** [all-recursive] Error 1
what should I do?
Try running (just after the failure) dmesg.
Do you see a line like this?
Out of memory: Kill process 23747 (cc1plus) score 15 or sacrifice child
Killed process 23747, UID 2243, (cc1plus) total-vm:214456kB, anon-rss:178936kB, file-rss:5908kB
Most likely that is your problem. Running make -j 8 runs lots of process which use more memory. The problem above occurs when your system runs out of memory. In this case rather than the whole system falling over, the operating systems runs a process to score each process on the system. The one that scores the highest gets killed by the operating system to free up memory. If the process that is killed is cc1plus, gcc (perhaps incorrectly) interprets this as the process crashing and hence assumes that it must be a compiler bug. But it isn't really, the problem is the OS killed cc1plus, rather than it crashed.
If this is the case, you are running out of memory. So run perhaps make -j 4 instead. This will mean fewer parallel jobs and will mean the compilation will take longer but hopefully will not exhaust your system memory.
(Might be a memory issue)
For anybody still struggling with this (over 2 years after the question was asked), there's this trick on CryptoCurrencyTalk that seems to make it work.
For convenience I'm pasting it here:
Run these (adjust bs= and count= to the amount of swap you want)
sudo dd if=/dev/zero of=/swapfile bs=64M count=16
sudo mkswap /swapfile
sudo swapon /swapfile
That should let you compile your code. But make sure you then revert the swapon after compilation, with these:
sudo swapoff /swapfile
sudo rm /swapfile
check if your CentOS installation already has swap enabled by typing:
sudo swapon --show
If the output is empty, it means that your system does not have swap space enabled.
Create a swap file
1.create a file which will be used as a swap space. bs is the size of one block. count is num of blocks. it will get 1024K * 1M = 1G space.
sudo dd if=/dev/zero of=/swapfile bs=1024 count=1048576
2.Ensure that only the root user can read and write the swap file:
sudo chmod 600 /swapfile
3.set up a Linux swap area on the file
sudo mkswap /swapfile
4.activate the swap
sudo swapon /swapfile
5."sudo swapon --show" or "sudo free -h" you will see the swap space.
This was the clue in my scenario (compiling mesos on CentOS 7) on an AWS EC2 instance.
I fixed it by increasing memory and cpu to at least 4GiB and 2 vCPUs.
I'm trying to put together some complicated makefile rules to automate building a project against multiple compilers. I have one rule that creates some dynamically generated variables and assigns variables to them, then passes those variables along to a call to build a separate rule.
.PHONY: all
all:
#echo "Detected CPULIST:${CPULIST_DETECTED}"
#echo "CPULIST:${CPULIST}"
#for cpu in $(CPULIST_DETECTED); do \
echo "CPU:$${cpu}:"; \
eval VARIANTLIST_DETECTED=$(shell 2>&1 find ./.build/linux/$$cpu -mindepth 1 -maxdepth 1 | grep -v '\.svn' | grep -v warning ); \
eval echo "Detected Variant List:$${VARIANTLIST_DETECTED}"; \
eval variant_$${cpu}=$${cpu}; \
eval echo "variant_\$${cpu}:\$${variant_$${cpu}}"; \
$(MAKE) build CPULIST=$${cpu}; \
done
.PHONY: build
build: sanity_check $(TARGET)
#true
I'm having two issues. The first is that, despite double-escaping cpu via $$cpu, it translates to null in the line:
eval VARIANTLIST_DETECTED=$(shell 2>&1 find ./.build/linux/$$cpu -mindepth 1 -maxdepth 1 | grep -v '\.svn' | grep -v warning ); \
So, the find command searches against ./.build/linux/ for each iteration of the loop rather than looping through ./.build/linux/arm and ./.build/linux/x86 like I would expect. I've included a post where this is described in the references below. I suspect this might be causing a problem because I'm attempting this within a rule itself rather than in the global assignment portion of the makefile (before the rules).
The other problem is occurring at the exact same line. It seems that the shell command is evaluated, assigned to VARIANTLIST_DETECTED, but then VARIANTLIST_DETECTED is executed as if it were a command, since I get the following error during build:
Detected CPULIST:arm x86
CPULIST:
CPU:arm:
/bin/sh: 3: ./.build/linux/x86: Permission denied
Detected Variant List:
variant_arm:arm
It's attempting to run the first result in my query as if it were a command. That line should also be something like ./.build/linux/x86/so.
How do I go about resolving these two issues? They are the last two thorns impeding completion of my makefiles.
Thanks!
References
Assign a makefile variable value to a bash command result?, Accessed 2014-06-19, <https://stackoverflow.com/questions/2373081/assign-a-makefile-variable-value-to-a-bash-command-result>
You need to step back a little bit and think about what's going on here: you seem to just be throwing things into your makefile and hoping the result is what you want, rather than really understanding what's happening and proceeding with a purpose to solve your problem.
The first thing to understand is how make invokes a recipe: first, make expands the recipe. Expanding means make looks through the text of the recipe and finds anything that begins with a $ and treats it like a make function or variable, and evaluates it. So, $$ is converted into a single $, $(CPU_LIST_DETECTED) is expanded to the value of that variable, and $(shell ....) is a make function which is run and the results are included in the recipe text. Maybe you can already see where your recipe is going wrong...
Then second, AFTER all of the recipe has been expanded, make takes the expanded text of the recipe and passes it to the shell. Make then waits for the shell to complete, and make looks at the exit code of the shell. If it's 0, then the recipe succeeds and make continues. If it's not 0, then the recipe fails and make exits with an error. There is NO INTERACTION between make and the shell except make starts it with a script to run, and gets back the exit code. If you couldn't before, maybe you can now see where your recipe is going wrong.
It's virtually always an error (or at least unnecessary) to use a $(shell ...) function inside a recipe... the recipe is already running in the shell! You don't need make to run another shell first, then give those results to a new shell.
Your shell invocation is trying to use a shell variable, $cpu. But that variable has no value here, when make runs the $(shell ...) function, because make runs that function before it starts your shell script. You can't have things in your make functions that refer to things that won't be defined until the recipe is running. This will run the shell script 2>&1 find ./.build/linux/$cpu -mindepth 1 -maxdepth 1 | grep -v '\.svn' | grep -v warning, but the shell variable cpu is not set so the find will recurse through everything under ./.build/linux/.
Second, you are misusing eval here. The shell function expands to a list of words, say foo bar baz. Then the eval will look like this:
eval VARIANTLIST_DETECTED=foo bar baz
which is the same as writing just this:
VARIANTLIST_DETECTED=foo bar baz
which is the same as running the command bar with an argument baz, after setting the variable VARIANTLIST_DETECTED to the value foo. Which is why it seems to be "running your directory".
You probably wanted this:
VARIANTLIST_DETECTED="foo bar baz"
(note quotes). However, getting quotes through an eval is tricky" you have to escape them. Luckily you don't need eval at all here anyway, because you're not trying to assign a dynamically named variable. You can just write the assignment directly.
So, losing the shell function and the eval, that line should be written:
VARIANTLIST_DETECTED=`2>&1 find ./.build/linux/$$cpu -mindepth 1 -maxdepth 1 | grep -v '\.svn' | grep -v warning`; \
Ditto for the echo: you don't need the eval there.
However, I really don't see the point of setting this variable or the variant_$cpu variable either. You never do anything with them.
In general, try to avoid putting Make syntax inside a command. Try this:
VARIANTLIST_DETECTED=$$(find ./.build/linux/$${cpu} -mindepth 1 -maxdepth 1 | grep -v '.svn' | grep -v warning );
I asked this question on the Informatica forums, but no one knew the answer, so now I'm coming here for some help.
To my understanding, anything in a "post-session success command" field should be passed to the appropriate command interface and executed. However, when I use an IF statement, it fails. Any ideas?
"IF 1==1 echo.bob >> f:\filename.txt"
This works when I type it manually into the terminal (DOS in this case). But when I throw it into a reusable command task, I get this:
ERROR
POST-SESS
CMN_1949
Error: [Pre/Post Session Command] Process id 2996. The shell command failed with exit code 1.
PS: Using 9.5.1 Hotfix 1
I think the problem is not in how Informatica executes commands. The problem lies in how DOS return error codes, and specifically that some commands, like IF and ECHO does'nt. (The return code Informatica picks up from DOS can be seen with echo %ERRORLEVEL% in DOS, and I'll use the name DOS here for convenience even though under Windows now this is'nt strictly correct)
Run these commands in succession:
REM "cd" sets ERRORLEVEL => ERRORLEVEL is set to 0
cd c:\
echo %ERRORLEVEL%
REM "echo" does not set ERRORLEVEL => ERRORLEVEL is left unchanged
echo.bob >> c:\filename.txt
echo %ERRORLEVEL%
REM "echo" does not set ERRORLEVEL => ERRORLEVEL is left unchanged
echo.bob >> c:\thisdirdontexist\filename.txt
echo %ERRORLEVEL%
The first CD set a return code, in this case to 0.
The following ECHO (with or without the IF test) does not change the return code, thus it remains 0 even though the last ECHO fails.
If the first CD command would have returned an error;
#echo off
REM "cd" sets ERRORLEVEL => ERRORLEVEL is set to 1
cd xxxxxx
echo %ERRORLEVEL%
then all the subsequent ECHO would return 1 and Informatica would fail them both.
This said it is still strange since each post-session success command in Informatica is executed under its own cmd-shell, so the initial ERRORLEVEL for every command should allways be 0. I can't explain that and unfortunately I can't actually test this in Informatica as we run under UNIX, but I'm pretty sure this is at least part of the problem.
To get around the problem you should make sure that you set the "Fail task if any command fails" option on the property-tab. This makes Informatica use the cmd/c option and since this set a proper return code Informatica should be able to pick up the error (or success) correctly. If this still doesn't work properly try change the command yourself to:
cmd /c "IF 1==1 echo.uncle >> c:\filename.txt"