`uru admin refresh` fails if a ruby directory is missing.

[Luis Lavena]

I removed a ruby directory by mistake and uru failed to complete admin refresh command:

C:\Users\Luis>uru ls
    187p371     : ruby 1.8.7 (2012-10-12 patchlevel 371) [i386-mingw32]
    187p374     : ruby 1.8.7 (2013-06-27 patchlevel 374) [i386-mingw32]
    192p290     : ruby 1.9.2p290 (2011-07-09) [i386-mingw32]
    193p429     : ruby 1.9.3p429 (2013-05-15) [i386-mingw32]
    193p448     : ruby 1.9.3p448 (2013-06-27) [i386-mingw32]
    200p195     : ruby 2.0.0p195 (2013-05-14) [i386-mingw32]
    200p195-x64 : ruby 2.0.0p195 (2013-05-14) [x64-mingw32]
    200p247     : ruby 2.0.0p247 (2013-06-27) [i386-mingw32]
    200p247-x64 : ruby 2.0.0p247 (2013-06-27) [x64-mingw32]

C:\Users\Luis>uru -debug=true admin refresh
2013/07/07 14:23:13 [DEBUG] initializing uru v0.6.1
2013/07/07 14:23:13 [DEBUG] uru HOME is C:\Users\Luis\.uru
2013/07/07 14:23:13 [DEBUG] === ctx.Registry.Rubies ===
map[149366990:{ID:2.0.0-p247 TagLabel:200p247 Exe:ruby Home:C:\Users\Luis\Tools\Ruby\ruby-2.0.0-p247-i386-mingw32\bin Ge
mHome: Description:ruby 2.0.0p247 (2013-06-27) [i386-mingw32]} 2742197238:{ID:1.8.7-p374 TagLabel:187p374 Exe:ruby Home:
C:\Users\Luis\Tools\Ruby\ruby-1.8.7-p374-i386-mingw32\bin GemHome: Description:ruby 1.8.7 (2013-06-27 patchlevel 374) [i
386-mingw32]} 2823172277:{ID:2.0.0-p195 TagLabel:200p195 Exe:ruby Home:C:\Users\Luis\Tools\Ruby\ruby-2.0.0-p195-i386-min
gw32\bin GemHome: Description:ruby 2.0.0p195 (2013-05-14) [i386-mingw32]} 3004300164:{ID:1.9.3-p448 TagLabel:193p448 Exe
:ruby Home:C:\Users\Luis\Tools\Ruby\ruby-1.9.3-p448-i386-mingw32\bin GemHome: Description:ruby 1.9.3p448 (2013-06-27) [i
386-mingw32]} 306969846:{ID:2.0.0-p247 TagLabel:200p247-x64 Exe:ruby Home:C:\Users\Luis\Tools\Ruby\ruby-2.0.0-p247-x64-m
ingw32\bin GemHome: Description:ruby 2.0.0p247 (2013-06-27) [x64-mingw32]} 3440111247:{ID:1.9.2-p290 TagLabel:192p290 Ex
e:ruby Home:C:\Users\Luis\Tools\Ruby\ruby-1.9.2-p290-i386-mingw32\bin GemHome: Description:ruby 1.9.2p290 (2011-07-09) [
i386-mingw32]} 3823836226:{ID:1.9.3-p429 TagLabel:193p429 Exe:ruby Home:C:\Users\Luis\Tools\Ruby\ruby-1.9.3-p429-i386-mi
ngw32\bin GemHome: Description:ruby 1.9.3p429 (2013-05-15) [i386-mingw32]} 3803376037:{ID:2.0.0-p195 TagLabel:200p195-x6
4 Exe:ruby Home:C:\Users\Luis\Tools\Ruby\ruby-2.0.0-p195-x64-mingw32\bin GemHome: Description:ruby 2.0.0p195 (2013-05-14
) [x64-mingw32]} 596636032:{ID:1.8.7-p371 TagLabel:187p371 Exe:ruby Home:C:\Users\Luis\Tools\Ruby\ruby-1.8.7-p371-i386-m
ingw32\bin GemHome: Description:ruby 1.8.7 (2012-10-12 patchlevel 371) [i386-mingw32]}]
2013/07/07 14:23:13 [DEBUG] cmd = admin
---> Unable to determine ruby metadata while refreshing

Several Rubies were removed (1.9.2, 1.8.7, etc), the only remaining installed were:

ruby-1.8.7-p374-i386-mingw32
ruby-1.9.3-p448-i386-mingw32
ruby-2.0.0-p247-i386-mingw32
ruby-2.0.0-p247-x64-mingw32

[Jon]

TODO

1. stat home dir for each refresh iteration
2. don't exit iteration and corrupt the registry if home dir stat fails; warn, remove missing ruby from updated registry, and continue refreshing the remaining registered rubies
3. end result: updated json ruby registry contains refreshed info for rubies with existing home dirs; all previously registered rubies that are now missing a home dir will be deregistered

[Jon]

If you're feeling adventurous, I just dropped an untested windows uru-0.6.2.alpha1 on the download page.

I'll test it tomorrow. Let me know how it works for you.

[Jon]

Did 0.6.2.alpha1 (a) work for you, and (b) appear to be the correct fix from an end user perspective?

[Luis Lavena]

Hello Jon,

I plan this today through my holiday. Keep you posted in a bit.

[Luis Lavena]

Works like a charm:

C:\Users\Luis>uru admin refresh
---> refreshing ruby tagged as `200p247`
---> refreshing ruby tagged as `187p374`
---> refreshing ruby tagged as `193p448`
---> refreshing ruby tagged as `200p247`
---> ruby tagged as `187p370` does not exist; deregistering

[Jon]

Make uru admin refresh more robust. Fixes #36

→ <<cset cfdc3f15eb4e>>