How to check PDK path in cadence shell window?

Well, this rather depends on the PDK you're using, but if it's just about getting a UNIX env var, then getShellEnvVar("ROOT_PDK") would return the value of the environment variable, or nil if it's not set.

Andrew

Thanks andrew

Hello Andrew,
few doubts related to above ques-

when am doing simplifyFilename("ROOT_PDK/mentor_calibre/*/source.added") in CIW

am getting /test/pdk/thomas/link/mentor_calibre/*/source.added   

and when am doing ls $ROOT_PDK/mentor_calibre/*/source.added  in cadence shell window am getting -> /test/pdk/thomas/link/mentor_calibre/190/source.added ->which is correct.

I want to get full realpath of file i.e /test/pdk/thomas/link/mentor_calibre/190/source.added

how i can do using skill...

One way i have tried -

if(getShellEnvVar("ROOT_PDK") == nil then
form->enter->value = ""
else
added = ipcBeginProcess("ls $ROOT_PDK/mentor_calibre/*/source.added")
ipcWait(added)
file = ipcReadProcess(added)
form->enter->value = file
)

when am running above script output am getting correct but-

am getting warning message as- *WARNING* 1 unprintable character passed as a field string value was changed to a space

Regards,

Thomas

Whilst simplifyFilename does handle environment variable expansion nowadays (so simplifyFilename("$ROOT_PDK/mentor_calibre") would work if the env var was set), it wouldn't handle wildcards because those are a shell feature. It would be a bit odd, since the wildcard could return multiple matches so simplifyFilename would be a misnomer in that case. 

You could use getDirFiles to read the directory up to the point with the wild card to find what's in the directory - getDirFiles(simplifyFilename("$ROOT_PDK/mentor_calibre")) and based on what that returns build the rest of the path.

Using the ipcBeginProcess approach is presumably because you have something set in your environment to run ls with --color (my guess is that LS_COLORS env var is set). So perhaps you should run "/bin/ls --color=never" or better still just use:

added = ipcBeginProcess("echo -n $ROOT_PDK/mentor_calibre/*/source.added")

Andrew

Hello Andrew,
Thanks for suggestion...

ipcBeginProcess("echo -n $ROOT_PDK/mentor_calibre/*/source.added") is working fine & charm.

but its getting struck for one or two seconds(run-time extends)...
is it fine to happens?

There's some overhead in starting external processes via IPC (I wouldn't normally expect it to take that long though) - it's normally intended for bigger processes than starting "echo". That's why it would be better to use something like:

dirName="$ROOT_PDK/mentor_calibre"
fileName="source.added"
expDirName=simplifyFilename(dirName)
; filter out anything beginning with dot (which is what "*" would do)
filesInDir=pcreMatchList("^[^.]" getDirFiles(simplifyFilename(expDirName)))
fullPaths=foreach(mapcar file filesInDir strcat(expDirName "/" file "/" fileName))
; find the first file in the expanded list that exists
matchedFile=car(exists(fullPath fullPaths isFile(fullPath)))

Yes, it's a few lines of code, but not really that complicated.

Thanks Andrew,
Andrew is there any doc related to pcre functions....i didn't find much in skill pdf.

Regards,

Thomas

Absolutely. They've been documented in the SKILL Language Reference manual for at least the last 15 years (if my memory is correct - it's certainly in a release I have handy from over 10 years ago; they were introduced in IC6.1.0 I think). The pcreCompile function is the place to start and it points you there at http://pcre.org which documents the Perl Compatible Regular Expressions that are supported by the pcre family of functions in SKILL.

So I'm not sure where you were looking, but they are documented.

Andrew