On Thursday, 19 November 2015 at 07:58:52 UTC, Jacob Carlborg
wrote:
DVM already does all this. Why reinvent the wheel?
Because we already have the code for Travis-CI and Heroku.
Also an intransparent binary is yet another hurdle trying to
convince someone to try out D.
BTW, I hust tried to use dvm.
The linux binary doesn't work for my distribution (Fedora).
./dvm: error while loading shared libraries: libbz2.so.1.0:
cannot open shared object file: No such file or directory
Compiling dvm with the latest dmd fails.
../../.dub/packages/tango-1.0.1_2.067/tango/io/vfs/ZipFolder.d(302,27): Error:
function tango.io.vfs.ZipFolder.ZipSubFolder.toString cannot have an in
contract when overriden function object.Object.toString does not have an in
contract
../../.dub/packages/tango-1.0.1_2.067/tango/io/vfs/ZipFolder.d(977,27): Error:
function tango.io.vfs.ZipFolder.ZipFile.toString cannot have an in contract
when overriden function object.Object.toString does not have an in contract
Not too surprising given the amount of code, the number of
dependencies, and the lack of any CI testing.
I managed to build dvm using dmd-2.067.0 (as indicated by the
tango dependency).
Apart from the fact that dvm --help offers weird choices (-t,
--tango Installs Tango as the standard library.), dvm
install --help or dvm --help don't explain how to install a
compiler.
dvm install dmd-2.068.2
tango.core.Exception.IOException@../../.dub/packages/tango-1.0.1_2.067/tango/core/Exception.d(59):
The resource with URL "http://ftp.digitalmars.com/dmd.dmd-2.068.2.zip"; could
not be found.
dvm install -l
An error occurred:
[email protected]/packages/dvm-0.4.4/dvm/commands/Fetch.d(270): Failed to get the latest DMD version.
dvm install -l -v # doesn't tell me either what fails
Looking at strace it seems you're trying to parse
http://dlang.org/download.html, please just use
http://ftp.digitalmars.com/LATEST instead.
After some trial and error it fails to install the selected
compiler (and doesn't use the much smaller tar.xz downloads btw).
dvm install 2.068.2
Fetching:
http://downloads.dlang.org/releases/2.x/2.068.2/dmd.2.068.2.linux.zip
[========================================>] 25969/25335 KB
Installing: dmd-2.068.2
An unknown error occurred:
tango.core.Exception.IOException@../../.dub/packages/tango-1.0.1_2.067/tango/core/Exception.d(59):
/home/dawg/.dvm/bin/dmd-2.068.2 :: No such file or directory
All of the above, plus the ability to install gdc/ldc and verify
downloaded dmd binaries, are achieved by a ~500LOC bash script.
Of course downloading and installing dmd used to be a lot more
chaotic when DVM was originally written. But making installations
more scriptable is a direct outcome of writing such scripts,
which works much better than building complex tools to deal with
inconsistencies.
