Re: Unable to use "Find all references" with GPS CE 2020 !?

["Jérôme Haguet" <j.haguet@cadwin.com>]

Le vendredi 28 août 2020 à 12:35:39 UTC+2, Jérôme Haguet a écrit :
> Le mercredi 26 août 2020 à 16:47:08 UTC+2, Jérôme Haguet a écrit : 
> > > > These days, I tried to use GPS from Gnat CE 2020, Windows x64. 
> > > > Unfortunatly, 'Find all references' does not seems to work. 
> > > > It happens on 2 different PCS, with any project I have tried, including the one used in the tutorial. 
> > > I have probably an identical setup: 2 PCs, Windows 10, x64, GNAT CE 2020. On both, 'Find all references' works perfectly, even on a relatively low-powered laptop (2 cores, 2 logical processors, 1.1 GHz). I'd say it works better than previously: in earlier versions, the reference finder gave up due to (perhaps) a time-out, or sometimes didn't want to work at all for the whole session. 
> > > Perhaps your problem is with the path? "C:\GNAT\2020\bin;" or equivalent should come first. It's important if you have multiple GNAT installations. 
> > Thanks Gauthier for the suggestion, I have simplified the PATH. But it did not make it work. 
> > I have made some additional tests with a new computer, and it works successfully. 
> > 
> > But I am still facing the problem with my own computer. 
> > I have found one difference using ProcessExplorer : subprocess ada_language_server.exe is not running after my .gpr project is opened. 
> > It can be successfully started from command line "C:\GNAT\2020\libexec\gnatstudio\als\ada_language_server.exe ...", but it is not started from GPS. 
> > 
> > Any idea where to check ? Any log option to activate ? 
> > 
> > Jérôme
> Seen in http://docs.adacore.com/live/wave/gps/html/gps_ug/environment.html#the-ada-language-server 
> "One known limitation of this server is that it doesn’t support file paths that are not valid UTF-8." 
> 
> And in %USERPROFILE%\home\.gnatstudio\log, I found : 
> ... 
> [GPS.KERNEL.XREF] Set up xref database: :memory: (12:24:25.635) 
> [SQL.INSPECT] Loading data from data into database (12:24:25.651) 
> [ENTITIES.TIMING] Created database: 0.017679200 s (12:24:25.653) 
> [GPS.KERNEL.GPS_KERNEL] Refresh_Context: no child focused (12:24:25.668) 
> [GPS.KERNEL.MSG] Not loading C:\GNAT\2020\share\examples\gnatstudio\tutorial\obj\sdc-msg.xml (12:24:25.668) 
> [GPS.LSP_CLIENT] Starting 'C:\GNAT\2020\libexec\gnatstudio\als\ada_language_server.exe' (12:24:25.834) 
> [HOOKS.EXCEPTIONS] While running project_view_changed:GPS.LSP_MODULE.ON_PROJECT_VIEW_CHANGED 
> _HOOKS.EXCEPTIONS_ raised ADA.STRINGS.UTF_ENCODING.ENCODING_ERROR : bad input at Item (34) 
> ... 
> 
> But I do not understand which file path is not valid UTF-8 : I have used standard installation, and I am testing sdc.gpr, which is provided as a tutorial 
> 
> Regards 
> Jérôme

FYI : 
This specific problem was due to an environment variable with French characters
For example : 
C> set ONE_VAR=Déjà
C> gnatstudio.exe 
....
and ada_language_server.exe process will fail to start when opening the 1st gpr project.

Same problem with gnatstudio from GNAT CE 2021