[Scons-users] Question over the use of powershell in env['SHELL'] or some way to force relative paths
RW
garlicbready at googlemail.com
Thu Sep 20 22:10:32 EDT 2018
Hi,
I've got another question
I've recently run into an issue whereby the command I'm trying to run
within scons / windows exceeds the 8192 path limit
This is partially due to scons using absolute paths during the build phase,
possibly due to the way I have the scripts setup
This leaves me with two options
1. Try to force the use of relative paths within scons
2. Try to use powershell as the shell since it seems to not have this issue
The full setup is here
https://github.com/Grbd-Forks/micropython/tree/scons2
with the top level script being run under
micropthon/ports/minimal (this is the only port I've tried setting up so
far)
The powershell approach nearly works, but seems to ignore the windows PATH
when searching for the arm gcc compiler I have installed
```
import distutils.spawn
powershell_path = distutils.spawn.find_executable("powershell.exe")
env.Replace(SHELL=powershell_path)
```
The other approach migh be to force scons to change the absolute path to a
relative one
with the below example D:\SourceCode\GitRepos.Forks\micropython\py\mpz.c to
..\..\py\mpz.c
but I'm unsure if theres a way to do that
To give an example of the sort of command line I'm ending up with
```
arm-none-eabi-gcc -E -std=c99 -DNO_QSTR -mthumb -mtune=cortex-m4
-mabi=aapcs-linux -mcpu=cortex-m4 -mfpu=fpv4-sp-d16 -mfloat-abi=hard
-fsingle-precision-constant -Wdouble-promotion -Wall -Werror -nostdlib -Os
-fdata-sections -ffunction-sections -DNDEBUG -I.
-ID:\SourceCode\GitRepos.Forks\micropython -Ibuild
D:\SourceCode\GitRepos.Forks\micropython\py\mpstate.c
D:\SourceCode\GitRepos.Forks\micropython\py\nlr.c
D:\SourceCode\GitRepos.Forks\micropython\py\nlrx86.c
D:\SourceCode\GitRepos.Forks\micropython\py\nlrx64.c
D:\SourceCode\GitRepos.Forks\micropython\py\nlrthumb.c
D:\SourceCode\GitRepos.Forks\micropython\py\nlrxtensa.c
D:\SourceCode\GitRepos.Forks\micropython\py\nlrsetjmp.c
D:\SourceCode\GitRepos.Forks\micropython\py\malloc.c
D:\SourceCode\GitRepos.Forks\micropython\py\gc.c
D:\SourceCode\GitRepos.Forks\micropython\py\pystack.c
D:\SourceCode\GitRepos.Forks\micropython\py\qstr.c
D:\SourceCode\GitRepos.Forks\micropython\py\vstr.c
D:\SourceCode\GitRepos.Forks\micropython\py\mpprint.c
D:\SourceCode\GitRepos.Forks\micropython\py\unicode.c
D:\SourceCode\GitRepos.Forks\micropython\py\mpz.c
D:\SourceCode\GitRepos.Forks\micropython\py\reader.c
D:\SourceCode\GitRepos.Forks\micropython\py\lexer.c
D:\SourceCode\GitRepos.Forks\micropython\py\parse.c
D:\SourceCode\GitRepos.Forks\micropython\py\scope.c
D:\SourceCode\GitRepos.Forks\micropython\py\compile.c
D:\SourceCode\GitRepos.Forks\micropython\py\emitcommon.c
D:\SourceCode\GitRepos.Forks\micropython\py\emitbc.c
D:\SourceCode\GitRepos.Forks\micropython\py\asmbase.c
D:\SourceCode\GitRepos.Forks\micropython\py\asmx64.c
D:\SourceCode\GitRepos.Forks\micropython\py\emitnx64.c
D:\SourceCode\GitRepos.Forks\micropython\py\asmx86.c
D:\SourceCode\GitRepos.Forks\micropython\py\emitnx86.c
D:\SourceCode\GitRepos.Forks\micropython\py\asmthumb.c
D:\SourceCode\GitRepos.Forks\micropython\py\emitnthumb.c
D:\SourceCode\GitRepos.Forks\micropython\py\emitinlinethumb.c
D:\SourceCode\GitRepos.Forks\micropython\py\asmarm.c
D:\SourceCode\GitRepos.Forks\micropython\py\emitnarm.c
D:\SourceCode\GitRepos.Forks\micropython\py\asmxtensa.c
D:\SourceCode\GitRepos.Forks\micropython\py\emitnxtensa.c
D:\SourceCode\GitRepos.Forks\micropython\py\emitinlinextensa.c
D:\SourceCode\GitRepos.Forks\micropython\py\formatfloat.c
D:\SourceCode\GitRepos.Forks\micropython\py\parsenumbase.c
D:\SourceCode\GitRepos.Forks\micropython\py\parsenum.c
D:\SourceCode\GitRepos.Forks\micropython\py\emitglue.c
D:\SourceCode\GitRepos.Forks\micropython\py\persistentcode.c
D:\SourceCode\GitRepos.Forks\micropython\py\runtime.c
D:\SourceCode\GitRepos.Forks\micropython\py\runtime_utils.c
D:\SourceCode\GitRepos.Forks\micropython\py\scheduler.c
D:\SourceCode\GitRepos.Forks\micropython\py\nativeglue.c
D:\SourceCode\GitRepos.Forks\micropython\py\stackctrl.c
D:\SourceCode\GitRepos.Forks\micropython\py\argcheck.c
D:\SourceCode\GitRepos.Forks\micropython\py\warning.c
D:\SourceCode\GitRepos.Forks\micropython\py\map.c
D:\SourceCode\GitRepos.Forks\micropython\py\obj.c
D:\SourceCode\GitRepos.Forks\micropython\py\objarray.c
D:\SourceCode\GitRepos.Forks\micropython\py\objattrtuple.c
D:\SourceCode\GitRepos.Forks\micropython\py\objbool.c
D:\SourceCode\GitRepos.Forks\micropython\py\objboundmeth.c
D:\SourceCode\GitRepos.Forks\micropython\py\objcell.c
D:\SourceCode\GitRepos.Forks\micropython\py\objclosure.c
D:\SourceCode\GitRepos.Forks\micropython\py\objcomplex.c
D:\SourceCode\GitRepos.Forks\micropython\py\objdeque.c
D:\SourceCode\GitRepos.Forks\micropython\py\objdict.c
D:\SourceCode\GitRepos.Forks\micropython\py\objenumerate.c
D:\SourceCode\GitRepos.Forks\micropython\py\objexcept.c
D:\SourceCode\GitRepos.Forks\micropython\py\objfilter.c
D:\SourceCode\GitRepos.Forks\micropython\py\objfloat.c
D:\SourceCode\GitRepos.Forks\micropython\py\objfun.c
D:\SourceCode\GitRepos.Forks\micropython\py\objgenerator.c
D:\SourceCode\GitRepos.Forks\micropython\py\objgetitemiter.c
D:\SourceCode\GitRepos.Forks\micropython\py\objint.c
D:\SourceCode\GitRepos.Forks\micropython\py\objint_longlong.c
D:\SourceCode\GitRepos.Forks\micropython\py\objint_mpz.c
D:\SourceCode\GitRepos.Forks\micropython\py\objlist.c
D:\SourceCode\GitRepos.Forks\micropython\py\objmap.c
D:\SourceCode\GitRepos.Forks\micropython\py\objmodule.c
D:\SourceCode\GitRepos.Forks\micropython\py\objobject.c
D:\SourceCode\GitRepos.Forks\micropython\py\objpolyiter.c
D:\SourceCode\GitRepos.Forks\micropython\py\objproperty.c
D:\SourceCode\GitRepos.Forks\micropython\py\objnone.c
D:\SourceCode\GitRepos.Forks\micropython\py\objnamedtuple.c
D:\SourceCode\GitRepos.Forks\micropython\py\objrange.c
D:\SourceCode\GitRepos.Forks\micropython\py\objreversed.c
D:\SourceCode\GitRepos.Forks\micropython\py\objset.c
D:\SourceCode\GitRepos.Forks\micropython\py\objsingleton.c
D:\SourceCode\GitRepos.Forks\micropython\py\objslice.c
D:\SourceCode\GitRepos.Forks\micropython\py\objstr.c
D:\SourceCode\GitRepos.Forks\micropython\py\objstrunicode.c
D:\SourceCode\GitRepos.Forks\micropython\py\objstringio.c
D:\SourceCode\GitRepos.Forks\micropython\py\objtuple.c
D:\SourceCode\GitRepos.Forks\micropython\py\objtype.c
D:\SourceCode\GitRepos.Forks\micropython\py\objzip.c
D:\SourceCode\GitRepos.Forks\micropython\py\opmethods.c
D:\SourceCode\GitRepos.Forks\micropython\py\sequence.c
D:\SourceCode\GitRepos.Forks\micropython\py\stream.c
D:\SourceCode\GitRepos.Forks\micropython\py\binary.c
D:\SourceCode\GitRepos.Forks\micropython\py\builtinimport.c
D:\SourceCode\GitRepos.Forks\micropython\py\builtinevex.c
D:\SourceCode\GitRepos.Forks\micropython\py\builtinhelp.c
D:\SourceCode\GitRepos.Forks\micropython\py\modarray.c
D:\SourceCode\GitRepos.Forks\micropython\py\modbuiltins.c
D:\SourceCode\GitRepos.Forks\micropython\py\modcollections.c
D:\SourceCode\GitRepos.Forks\micropython\py\modgc.c
D:\SourceCode\GitRepos.Forks\micropython\py\modio.c
D:\SourceCode\GitRepos.Forks\micropython\py\modmath.c
D:\SourceCode\GitRepos.Forks\micropython\py\modcmath.c
D:\SourceCode\GitRepos.Forks\micropython\py\modmicropython.c
D:\SourceCode\GitRepos.Forks\micropython\py\modstruct.c
D:\SourceCode\GitRepos.Forks\micropython\py\modsys.c
D:\SourceCode\GitRepos.Forks\micropython\py\moduerrno.c
D:\SourceCode\GitRepos.Forks\micropython\py\modthread.c
D:\SourceCode\GitRepos.Forks\micropython\py\vm.c
D:\SourceCode\GitRepos.Forks\micropython\py\bc.c
D:\SourceCode\GitRepos.Forks\micropython\py\showbc.c
D:\SourceCode\GitRepos.Forks\micropython\py\repl.c
D:\SourceCode\GitRepos.Forks\micropython\py\smallint.c
D:\SourceCode\GitRepos.Forks\micropython\py\frozenmod.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\moductypes.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\modujson.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\modure.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\moduzlib.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\moduheapq.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\modutimeq.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\moduhashlib.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\moducryptolib.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\modubinascii.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\virtpin.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\machine_mem.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\machine_pinbase.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\machine_signal.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\machine_pulse.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\machine_i2c.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\machine_spi.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\modussl_axtls.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\modussl_mbedtls.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\modurandom.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\moduselect.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\modwebsocket.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\modwebrepl.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\modframebuf.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\vfs.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\vfs_reader.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\vfs_posix.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\vfs_posix_file.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\vfs_fat.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\vfs_fat_diskio.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\vfs_fat_file.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\utime_mphal.c
D:\SourceCode\GitRepos.Forks\micropython\extmod\uos_dupterm.c
D:\SourceCode\GitRepos.Forks\micropython\lib\embed\abort_.c
D:\SourceCode\GitRepos.Forks\micropython\lib\utils\printf.c >
build\genhdr\qstr.i.last
```
Many Thanks
Richard
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