[Enhancement] Change installation directory structure

[samdmarshall]

Currently the installation directory structure looks like this:

/Users/Samantha/.nimble/
├── bin
│   ├── c2nim -> /Users/Samantha/.nimble/pkgs/c2nim-0.9.12/c2nim
│   ├── rite -> /Users/Samantha/.nimble/pkgs/pewpewthespells-0.1/rite
│   └── ritual -> /Users/Samantha/.nimble/pkgs/pewpewthespells-0.1/ritual
├── nimbledata.json
├── packages_official.json
├── packages_temp.json
└── pkgs
    ├── OTP-0.1.1
    ├── asynctools-0.1.0
    ├── base32-0.1.1
    ├── c2nim-0.9.12
    ├── cmd-0.1.0
    ├── compiler-#head
    ├── hmac-0.1.1
    ├── influx-0.1.0
    ├── jester-0.1.1
    ├── kiwi-0.1.0
    ├── libclang-0.1.0
    ├── libssh2-0.1.0
    ├── llvm-3.5
    ├── lua-1.0
    ├── nimSHA2-0.1.1
    ├── notmuch-0.1.0
    ├── parsetoml-0.2.0
    ├── plists-0.1.0
    ├── pluginmanager-0.1.0
    ├── progress-0.1.0
    ├── pythonpathlib-0.1
    ├── rune-0.1.0
    ├── untar-0.1.0
    ├── yaml-0.9.0
    └── zip-0.1.1

My proposal would be to change it to look more like the layout that homebrew uses for installation of packages:

/usr/local/Cellar/
├── adns
│   └── 1.5.1
├── alot
│   ├── 0.5.1
│   └── HEAD-d532672
├── ansible
│   └── 2.3.0.0
├── asciinema
│   └── HEAD-9a74fc3
├── autoconf
│   └── 2.69
├── automake
│   └── 1.15
├── battery-level
│   └── 0.4.1
├── c2nim
│   └── HEAD-9a8a739
├── cairo
│   └── 1.14.8
├── cmake
│   └── 3.8.0
├── cmdparse
│   └── HEAD-2a62ff0
├── cmus
│   └── HEAD-c64e0d5_2
├── cmus-airpods
│   └── HEAD-e75954b
├── cmus-control
│   └── 1.0.2
├── cs-tools
│   └── HEAD-c10149b
├── dagger
│   └── HEAD-e9137eb
├── diff-so-fancy
│   └── 0.11.4
├── diffoscope
│   └── 81
├── dirmngr
│   └── 1.1.1_3
├── docker
│   └── 17.04.0
├── docker-machine
│   └── 0.10.0
├── docker-machine-driver-xhyve
│   ├── 0.3.1
│   └── 0.3.2
├── x264
│   └── r2748
├── xapian
│   └── 1.4.3
├── xvid
│   └── 1.3.4
├── xz
│   └── 5.2.3
├── ykclient
│   └── 2.15
├── ykpers
│   └── 1.17.3
├── youtube-dl
│   └── 2017.04.17
└── yubico-piv-tool
    └── 1.4.2

Where you have a directory that contains all of the packages, then a level under that per package (by name) then a subdirectory under each package based on version. This would allow more flexibility when installing packages as well as being able to support multiple versions of the same package in use at any given time via version pinning.

[dom96]

being able to support multiple versions of the same package in use at any given time via version pinning

If I understand you correctly, this is already supported.

untar-0.1.0 and untar-0.2.0 can both be present.

[samdmarshall]

ah interesting, I still think that this kind of a change would be more beneficial for organizational reasons.

[dom96]

Perhaps, but it would be a pain to change and the benefits aren't worth the effort IMO.