Discussion:
Easy way to set up a caching proxy for github to make elm-install run faster?
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'Rupert Smith' via Elm Discuss
2017-10-03 15:32:09 UTC
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I tend to use elm-install to manage my package dependencies, as it also
caches them locally. However, it needs to reach out to github to check for
any updates, each time it is run. I am working on a slow internet
connection some of the time.

Does anyone know of an easy way to set up a caching proxy for github? The
first time a repository is cloned from github, the cache should make a copy
of the clone. Maybe a config option to tell it how often to update any
clones it holds, once a day will be enough for me.
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'Rupert Smith' via Elm Discuss
2017-10-03 15:54:39 UTC
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Post by 'Rupert Smith' via Elm Discuss
I tend to use elm-install to manage my package dependencies, as it also
caches them locally. However, it needs to reach out to github to check for
any updates, each time it is run. I am working on a slow internet
connection some of the time.
Does anyone know of an easy way to set up a caching proxy for github? The
first time a repository is cloned from github, the cache should make a copy
of the clone. Maybe a config option to tell it how often to update any
clones it holds, once a day will be enough for me.
I suppose another way would be to modify elm-install such that it take a
command line argument that tells it to skip checking for updates. Maybe -o
for offline mode.
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Gusztáv Szikszai
2017-10-04 04:02:30 UTC
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Post by 'Rupert Smith' via Elm Discuss
I suppose another way would be to modify elm-install such that it take a
command line argument that tells it to skip checking for updates. Maybe -o
for offline mode.
There is one it's the --skip-update I've added it in the v1.6.0
<https://github.com/gdotdesign/elm-github-install/releases/tag/v1.6.0>
release
Post by 'Rupert Smith' via Elm Discuss
Post by 'Rupert Smith' via Elm Discuss
I tend to use elm-install to manage my package dependencies, as it also
caches them locally. However, it needs to reach out to github to check for
any updates, each time it is run. I am working on a slow internet
connection some of the time.
Does anyone know of an easy way to set up a caching proxy for github? The
first time a repository is cloned from github, the cache should make a copy
of the clone. Maybe a config option to tell it how often to update any
clones it holds, once a day will be enough for me.
I suppose another way would be to modify elm-install such that it take a
command line argument that tells it to skip checking for updates. Maybe -o
for offline mode.
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'Rupert Smith' via Elm Discuss
2017-10-06 09:31:34 UTC
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Post by 'Rupert Smith' via Elm Discuss
I suppose another way would be to modify elm-install such that it take a
Post by 'Rupert Smith' via Elm Discuss
command line argument that tells it to skip checking for updates. Maybe -o
for offline mode.
There is one it's the --skip-update I've added it in the v1.6.0
<https://github.com/gdotdesign/elm-github-install/releases/tag/v1.6.0>
release
Excellent, that is very helpful, thanks.
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Chad Woolley
2017-10-06 14:41:44 UTC
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I asked Evan about this at last week's ElmConf, and he said in the next
release of Elm, there will be changes that make it easier to cache
dependencies which have previously been downloaded.

-- Chad

On Fri, Oct 6, 2017 at 5:31 AM, 'Rupert Smith' via Elm Discuss <
Post by 'Rupert Smith' via Elm Discuss
Post by 'Rupert Smith' via Elm Discuss
I suppose another way would be to modify elm-install such that it take a
Post by 'Rupert Smith' via Elm Discuss
command line argument that tells it to skip checking for updates. Maybe -o
for offline mode.
There is one it's the --skip-update I've added it in the v1.6.0
<https://github.com/gdotdesign/elm-github-install/releases/tag/v1.6.0>
release
Excellent, that is very helpful, thanks.
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'Rupert Smith' via Elm Discuss
2017-10-11 21:31:04 UTC
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Post by Chad Woolley
I asked Evan about this at last week's ElmConf, and he said in the next
release of Elm, there will be changes that make it easier to cache
dependencies which have previously been downloaded.
Yes, elm-install already does this. Unfortunately, as it just clones a git
repo, it ends up doing a significant amount of work just to decide if a new
version has become available since the last cached one. I wonder though if
it is doing this as efficiently as possible?

In Java land we have the Maven repositories, where artifacts are packages
as binaries (.jar files), and the repo meta data is held separately in a
small xml file. It means checks for updates only requires downloading that
small xml file. You can also limit how frequently updates are checked for.

There are also package managers such as Nexus, that are easy to set up as
proxies on the central repository. Once you have Nexus running on you local
development network and configured nicely, it all goes much faster. In
fact, I also have an apt-proxy running in my development network as I am
frequently creating new Debian virtual machines.

It would likely be possible to write a plugin for Nexus that supports Elm -
it started out as a Maven package manager but has now evolved to cover
other packaging formats like npm.

Anyway, I'm sure Evan has will work things out nicely for Elm 0.19, and
probably not much point in figuring out the direction of third party
tooling to fill any gaps until that is out.
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