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skip installation if the version is already installed #27

Merged
merged 8 commits into from
Feb 14, 2019
Merged

skip installation if the version is already installed #27

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9e5b27f
remove ansi codes from provided version string
kentac55 Feb 11, 2019
c8079bf
add check func whether the specify version is already installed or not
kentac55 Feb 11, 2019
80c5c8b
Revert "remove ansi codes from provided version string"
kentac55 Feb 12, 2019
83a52e0
apply code review(rename check function)
kentac55 Feb 12, 2019
07f7457
run esy fmt
kentac55 Feb 12, 2019
2103111
move short path to the top of the switch case
kentac55 Feb 12, 2019
5700c46
use Result.fold instead of switch case
kentac55 Feb 12, 2019
7f92279
use Array.exists instead of List.exists
kentac55 Feb 12, 2019
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add check func whether the specify version is already installed or not
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@kentac55
kentac55 committed Feb 11, 2019
commit c8079bf21a6a8b537132bc67c43cdbca7692df88
10 changes: 10 additions & 0 deletions executable/Install.re
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Expand Up @@ -27,6 +27,7 @@ let main = (~version as versionName) => {
};

let versionName = Versions.format(versionName);
let%lwt _ = Versions.isAlreadyInstalled(versionName);

Console.log(
<Pastel>
Expand Down Expand Up @@ -101,4 +102,13 @@ let run = (~version) =>
</Pastel>,
)
|> Lwt.return
| Versions.Already_installed(version) =>
Console.log(
<Pastel>
"Version "
<Pastel color=Pastel.Cyan> version </Pastel>
" is already installed"
</Pastel>,
)
|> Lwt.return
};
18 changes: 18 additions & 0 deletions library/Versions.re
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Expand Up @@ -8,6 +8,7 @@ module Local = {
};

exception Version_not_found(string);
exception Already_installed(string);

module Remote = {
type t = {
Expand Down Expand Up @@ -146,3 +147,20 @@ let getRemoteVersions = () => {
)
|> Lwt.return;
};

let isAlreadyInstalled = versionName => {
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switch(getInstalledVersions()) {
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| Ok(x) => {
Array.to_list(x)
|> List.exists(x => {
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open Local;
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x.name == versionName;
})
|> x => switch x {
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| true => Lwt.fail(Already_installed(versionName));
| false => Lwt.return();
};
};
| Error(_) => Lwt.return();
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};
};