Problem expanding %o in lua generated rule

[edwinzrodriguez]

I'm having a problem getting a lua file to generate a rule which outputs to a different directory. I've simplified the example to highlight the issue.

TEST_SAMPLE_SRC = sample.txt
TEST_SAMPLE_DST = $(DIR_LIBS)/sample.txt

The lua copies from source to dest and I want the destination to be build-dbg/root/lib/sample.txt but it winds up at 'build-dbg/src/utils/root/lib/sample.txt'

`
[rodried@ln80-ryzen-build0-lazyk-local:60]/git/tup_test3/sw(master)> rm -rf build-*/ .tup && tup-v0.7.11-120-g8739d024 init && tup-v0.7.11-120-g8739d024 variant build_tools/variants/dbg.config
.tup repository initialized: .tup/db
tup: Added variant 'build-dbg' using config file 'build_tools/variants/dbg.config'
[rodried@ln80-ryzen-build0-lazyk-local:61]/git/tup_test3/sw(master)> tup-v0.7.11-120-g8739d024 --verbose
[ tup ] [0.007s] Scanning filesystem...
[ tup ] [0.026s] Reading in new configuration/environment variables...
0) new variant: [build-dbg] tup.config
[ ] 100%
[ tup ] [0.045s] Parsing Tupfiles...
6) [0.002s] [build-dbg] build_tools/variants
5) [0.001s] [build-dbg] build_tools
4) [0.006s] [build-dbg] src/utils/test
src_name=sample.txt
dst_name=%18t/root/lib/sample.txt
VARIANTDIR=%18t
VARIANT_OUTPUTDIR=../../../build-dbg/src/utils/test
tup.getcwd()=../../../build_tools
tup.getdirectory()=build_tools
tup.getvariantdir()=../../../build-dbg/build_tools
elements[1]="%18t/root/lib/sample.txt"
result=../../../build-dbg/build_tools/../root/lib/sample.txt
fix_dst_name=../../../build-dbg/build_tools/../root/lib/sample.txt
cp_cmd=^ BIN %o^ cp -v %f %o
cp_rule=../root/lib/sample.txt
3) [0.001s] [build-dbg] src/utils
2) [0.001s] [build-dbg] src/include

1. [0.001s] [build-dbg] src
2. [0.001s] [build-dbg] .
   [ ] 100%
   [ tup ] [0.061s] No files to delete.
   [ tup ] [0.061s] Generating .gitignore files...
   [ tup ] [0.067s] Executing Commands...
3. [0.029s] [build-dbg] src/utils/test: cp -v sample.txt ../../../build-dbg/src/utils/test/../root/lib/sample.txt
   'sample.txt' -> '../../../build-dbg/src/utils/test/../root/lib/sample.txt'
   [ ] 100%
   [ tup ] [0.104s] Updated.
   If I try to add a rule to copy from where the result should be: $(DIR_LIBS)/sample.txt |> !cp |> $(DIR_TEST)/%bproduces an error:tup error: Failed to find directory ID for dir '../../../root/lib/sample.txt' relative to '[build-dbg] src/utils/test'
   tup error: Error parsing Tupfile line 16
   Line was: ': $(DIR_LIBS)/sample.txt |> !cp |> $(DIR_TEST)/%b'
   [ ] 100%`

But if I change the DST to $(TUP_VARIANTDIR)/sample.txt and the copy rule to
: $(TUP_VARIANTDIR)/sample.txt |> !cp |> $(DIR_LIBS)/%b

I finally get the file where I want it
build-dbg/root/nimble/lib/sample.txt

tup_test3.tgz

[edwinzrodriguez]

Let me clean this up a bit.
I create VARIANT_ROOT = $(TUP_VARIANTDIR) in the topmost Tuprules.tup to use to define DIR_TEST = $(VARIANT_ROOT)/root/test
The attached example has a lua which generates a cp command to copy a file to a destination. If the destination is specified as $(DIR_TEST)/sample.txt from src/utils/test the result winds up in build-dbg/src/utils/src/utils/test/root/test/sample.txt rather than build-dbg/root/test/sample.txt as intended.

If I add a rule to the Tupfile to copy the result from $(DIR_TEST)/sample.txt to $(DIR_BIN)/%b produces the error:
`
tup error: Failed to find directory ID for dir '../../../root/test/sample.txt' relative to '[build-dbg] src/utils/test'
tup error: Error parsing Tupfile line 17

Line was: ': $(DIR_TEST)/sample.txt |> !cp |> $(DIR_BIN)/%b'
[ ETA~=<1s ] 60%
`
tup_test3.tgz

[gittup]

I'm not sure if I fully understood your test tarball in terms of what was expected to work and what was debug or a work in progress, but I do see how there was a problem with tup.getvariantdir() in Lua. I believe that is fixed with commit 41d1302, but I'm not sure if that fixes your problem here or not. Can you give the latest a try and see if things are working as you expect? If not, can you try to distill it down to a simpler test case? Thanks!