obsidian plugin, mygvm enhancements

mygvm/README.md

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+### My GVM
+This tool was written to share a single `GOPATH` despite multiple different Go versions, which require their own `GOROOT`.
+
+It will find and install latest minor or explicit patch versions.
+
+Due to `GOBIN` switching around, a list of modules can be specified to install. These should be located at
+`$HOME/.config/mygvm/modules_to_install` separated by newlines

mygvm/modules_to_install

@@ -0,0 +1,3 @@
+github.com/tilt-dev/ctlptl/cmd/ctlptl@latest
+sigs.k8s.io/kind@v0.22.0
+github.com/derailed/k9s@v0.27.3

mygvm/mygvm

@@ -0,0 +1,167 @@
+#!/bin/bash
+list_versions() {
+    echo "installed versions:"
+    for i in "$HOME"/.go/go1*; do basename "$i"; done
+    echo ""
+}
+
+install_version() {
+    check_valid_patch $1
+    if [[ $valid != 'true' ]]; then
+        echo "invalid version $1"
+        echo "using $(go version)"
+        exit 1
+    fi
+
+    fname="$HOME/.go/downloads/$1.$goos-$goarch.tar.gz"
+
+    if [[ ! -f $fname ]]; then
+        curl -Lo $fname https://dl.google.com/go/$1.$goos-$goarch.tar.gz
+    fi
+    cd $HOME/.go/downloads
+    tar -zxf $1.$goos-$goarch.tar.gz
+    mv go/ ../$1
+    check_exists $1
+    link_version $1
+
+    install_modules
+}
+
+link_version() {
+    if [[ $exists == 'true' ]]; then
+        ln -sfn $HOME/.go/$1 $HOME/.go/go
+    fi
+}
+
+check_valid_minor() {
+    if [[ $1 =~ go1\.[0-9]{1,2} ]]; then
+        valid='true'
+    fi
+}
+
+check_valid_patch() {
+    if [[ $1 =~ go1\.[0-9]{1,2}\.[0-9]{1,2} ]]; then
+        valid='true'
+    fi
+}
+
+check_exists() {
+    if [[ -d $HOME/.go/$1 ]]; then
+        exists='true'
+    fi
+}
+
+remove_version() {
+    check_exists $1
+    if [[ $exists == 'true' ]]; then
+        if [[ $current_link == $1 ]]; then
+            echo "cannot remove version $1 because it is currently in use"
+        else
+            rm -rf $HOME/.go/$1
+            echo "removed version $1"
+        fi
+    else
+        echo "version $1 not installed"
+    fi
+}
+
+get_latest_patch_for_minor() {
+    version=$(curl -s "https://go.dev/dl/?mode=json&include=all" | grep -o "$1.*.linux-amd64.tar.gz" | head -n 1 | tr -d '\r\n' | sed 's/[.]linux-amd64[.]tar[.]gz//')
+    if [[ $version == '' ]]; then
+        echo "could not determine latest version for $1."
+        exit 1
+    else
+        echo "latest $1 patch: $version"
+    fi
+}
+
+prompt_install() {
+    echo "$1 not found in $HOME/.go"
+    list_versions
+    check_valid_patch $1
+
+    if [[ $valid == 'true' ]]; then
+        echo "attempt to download and install? [y/n]"
+        read input
+        if [[ $input == 'y' ]]; then
+            install_version $1
+        fi
+    else
+        check_valid_minor $1
+        if [[ $valid == 'true' ]]; then
+            get_latest_patch_for_minor $1
+            check_exists $version
+            if [[ $exists == 'true' ]]; then
+               link_version $version
+            else
+                prompt_install $version
+            fi
+        else
+            echo "invalid version $1"
+            echo "using $(go version)"
+            exit 1
+        fi
+    fi
+}
+
+install_modules() {
+    fname="$HOME/.config/mygvm/modules_to_install"
+    echo "attempting to install nvim required binaries and modules at $fname"
+    [[ ! -f $fname ]] && echo "no modules file at $fname" && return
+
+    while IFS= read -r line; do
+    if [[ "$line" != "" ]]; then 
+        echo "running go install $line"
+        go install $line
+    fi
+    done < "$HOME/.config/mygvm/modules_to_install"
+
+    [[ $(which nvim) ]] && nvim --headless +GoInstallBinaries +q
+    echo ""
+}
+
+mkdir -p "$HOME/.go/downloads"
+current_link=$(basename $(readlink $HOME/.go/go))
+uname_m=$(uname -m)
+goarch='amd64'
+if [[ $uname_m == 'arm64' || $uname_m == 'aarch64' ]]; then
+    goarch='arm64'
+fi
+goos='linux'
+if [[ $(uname) == 'Darwin' ]]; then
+    goos='darwin'
+fi
+valid='false'
+exists='false'
+
+version=''
+
+check_exists $1
+if [[ $1 == '' ]]; then
+    list_versions
+elif [[ $1 == 'list' ]]; then
+    list_versions
+elif [[ $1 == 'remove' ]]; then
+    remove_version $2
+elif [[ $1 == 'uninstall' ]]; then
+    remove_version $2
+elif [[ $1 == 'install' ]]; then
+    install_version $2
+elif [[ $1 == 'use' ]]; then
+    check_exists $2
+    if [[ $exists == true ]]; then
+        link_version $2
+    else
+        prompt_install $2
+    fi
+    install_modules
+elif [[ $1 == 'modules' ]]; then
+    install_modules
+elif [[ $exists == 'true' ]]; then
+    link_version $1
+else
+    prompt_install $1
+fi
+
+echo "using $(go version)"
+