Are there SKILL functions to modify cds.lib?

Hi, I don't think there is any public function to do so

Even in Cadence support articles, they use system calls How to work with an modified/updated cds.lib file within a SKILL script?

You might delete in a more elegant way using sed (or in a safer way by adding UNDEFINE in your cds.lib) though

Cheers

Aurélien

To add a library to the cds.lib, you can just use ddCreateLib - if the library directory already exists, all this does is add it to the cds.lib

I don't believe there's a function just to remove an entry from the cds.lib (simplest is to concatenate an UNDEFINE statement to the end). The ddDeleteObj function will remove it, but it also removes the library from disk which you probably don't want.

Andrew

Not sure how to duplicate the functionality in sed. I like the UNDEFINE suggestion. Thanks,

Hi Morris,

I did such thing long time ago, but i forgot where i put it, so a have re-did it for you.

See below the function lib2 comment that use sed (stream editor ) as Aurel suggested. Although one can imagine a pure skill function that read cds.lib parse it and change the library pattern. I show you also an example if you use relative path to a global variable $PRJ_DIR for instance.

There is an example with "grep -q " that checks if the string is allready in the cds.lib to put it in. Although, if you want to create a library, within cadence, you need to use the skill function dbCreateLib.

_______________

;ddSetForcedLib("");=> Forece reference cds.lib to be ./cds.lib if not

defun(lib2comment (@optional (toinclude "DEFINE libA ./path/libA") (AA "")(BB "#") (cdslib "./cds.lib") (verb nil))
let((cmd fp)
cmd=strcat("cat " cdslib " |sed -e " "\"s,^" AA toinclude "," BB toinclude ",\" > ./tmp; mv ./tmp " cdslib)
fp=outfile("./toScript.sh") fprintf(fp "%s" cmd) close(fp)
when(verb  sh("cat ./toScript.sh"))
sh("./toScript.sh ")
))

lib2comment("DEFINE libB ./path/libB" "" "#"); => pattern does not exist => nothing commented
lib2comment("DEFINE libA ./path/libA" "" "#"); => comment
lib2comment("DEFINE libA ./path/libA" "#" ""); => uncomment
lib2comment("INCLUDE \\$PRJ_DIR/project.lib" "#" "")
lib2comment("INCLUDE \\$PRJ_DIR/project.lib" "" "#")
sh("cat ./cds.lib")

;(setq cdslib "./cds.lib")

defun(lib2add (@optional (toinclude "DEFINE libA ./path/libA") (cdslib "./cds.lib") (verb nil))
let((cmd fp)
cmd=strcat("if (! grep -q \"" toinclude "\" " cdslib "); then echo APPEND in cds.lib; echo " toinclude " >> "  cdslib "; else echo ALLREADY in cds.lib;fi ")
fp=outfile("./toScript.sh") fprintf(fp "%s" cmd) close(fp)
when(verb sh("cat ./toScript.sh"))
sh("./toScript.sh")
))

lib2add("DEFINE libB ./path/libB" "./cds.lib" t);=> nil
sh("cat ./cds.lib")
lib2comment("DEFINE libB ./path/libB" "" "#")
__________________

Hope it helps

++

Hi ebecheto, Your solution is far more flexible than what I need. For my usage the library name and location will be the same always.  I will run your example out of curiosity and to see the generated sed command but my final solution will definitely be much simpler.

Thanks,