add awless installer

awless/README.md

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+---
+title: awless
+homepage: https://github.com/wallix/awless
+tagline: |
+  awless is a powerful, innovative and small surface command line interface (CLI) to manage Amazon Web Services.
+---
+
+## Updating awless
+
+```bash
+webi awless
+```
+
+## Cheat Sheet

awless/install.ps1

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+#!/usr/bin/env pwsh
+
+#################
+# Install awless #
+#################
+
+# Every package should define these variables
+$pkg_cmd_name = "awless"
+
+$pkg_dst_cmd = "$Env:USERPROFILE\.local\bin\awless.exe"
+$pkg_dst_bin = "$Env:USERPROFILE\.local\bin"
+$pkg_dst = "$pkg_dst_cmd"
+
+$pkg_src_cmd = "$Env:USERPROFILE\.local\opt\awless-v$Env:WEBI_VERSION\bin\awless.exe"
+$pkg_src_bin = "$Env:USERPROFILE\.local\opt\awless-v$Env:WEBI_VERSION\bin"
+$pkg_src_dir = "$Env:USERPROFILE\.local\opt\awless-v$Env:WEBI_VERSION"
+$pkg_src = "$pkg_src_cmd"
+
+$pkg_download = "$Env:USERPROFILE\Downloads\$Env:WEBI_PKG_FILE"
+
+# Fetch archive
+IF (!(Test-Path -Path "$Env:USERPROFILE\Downloads\$Env:WEBI_PKG_FILE")) {
+    # TODO: arch detection
+    echo "Downloading awless from $Env:WEBI_PKG_URL to $pkg_download"
+    & curl.exe -A "$Env:WEBI_UA" -fsSL "$Env:WEBI_PKG_URL" -o "$pkg_download.part"
+    & move "$pkg_download.part" "$pkg_download"
+}
+
+IF (!(Test-Path -Path "$pkg_src_cmd")) {
+    echo "Installing awless"
+
+    # TODO: create package-specific temp directory
+    # Enter tmp
+    pushd .local\tmp
+
+    # Remove any leftover tmp cruft 
+    Remove-Item -Path ".\awless-v*" -Recurse -ErrorAction Ignore
+    Remove-Item -Path ".\awless.exe" -Recurse -ErrorAction Ignore
+
+    # Unpack archive file into this temporary directory
+    # Windows BSD-tar handles zip. Imagine that.
+    echo "Unpacking $pkg_download"
+    & tar xf "$pkg_download"
+
+    # Settle unpacked archive into place
+    echo "Install Location: $pkg_src_cmd"
+    New-Item "$pkg_src_bin" -ItemType Directory -Force
+    Move-Item -Path ".\awless.exe" -Destination "$pkg_src_bin"
+
+    # Exit tmp
+    popd
+}
+
+echo "Copying into '$pkg_dst_cmd' from '$pkg_src_cmd'"
+Remove-Item -Path "$pkg_dst_cmd" -Recurse -ErrorAction Ignore
+New-Item "$pkg_dst_bin" -ItemType Directory -Force
+Copy-Item -Path "$pkg_src" -Destination "$pkg_dst" -Recurse

awless/install.sh

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+#!/bin/bash
+
+# "This is too simple" you say! "Where is the magic!?" you ask.
+# There is no magic!
+# The custom functions for awless are here.
+# The generic functions - version checks, download, extract, etc - are here:
+#   - https://github.com/webinstall/packages/branches/master/_webi/template.sh
+
+set -e
+set -u
+
+pkg_cmd_name="awless"
+
+# IMPORTANT: this let's other functions know to expect this to be a single file
+WEBI_SINGLE=true
+
+pkg_get_current_version() {
+    # 'awless version' has output in this format:
+    #       v2.1.0 h1:pQSaIJGFluFvu8KDGDODV8u4/QRED/OPyIR+MWYYse8=
+    # This trims it down to just the version number:
+    #       2.1.0
+    echo "$(awless version 2>/dev/null | head -n 1 | cut -d' ' -f1 | sed 's:^v::')"
+}
+
+pkg_install() {
+    # $HOME/.local/opt/awless-v2.1.0/bin
+    mkdir -p "$pkg_src_bin"
+
+    # mv ./awless* "$HOME/.local/opt/awless-v2.1.0/bin/awless"
+    mv ./"$pkg_cmd_name"* "$pkg_src_cmd"
+
+    # chmod a+x "$HOME/.local/opt/awless-v2.1.0/bin/awless"
+    chmod a+x "$pkg_src_cmd"
+}
+
+pkg_link() {
+    # rm -f "$HOME/.local/bin/awless"
+    rm -f "$pkg_dst_cmd"
+
+    # ln -s "$HOME/.local/opt/awless-v2.1.0/bin/awless" "$HOME/.local/bin/awless"
+    ln -s "$pkg_src_cmd" "$pkg_dst_cmd"
+}

awless/releases.js

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+'use strict';
+
+var github = require('../_common/github.js');
+var owner = 'wallix';
+var repo = 'awless';
+
+module.exports = function (request) {
+  return github(request, owner, repo).then(function (all) {
+    // remove checksums and .deb
+    all.releases = all.releases.filter(function (rel) {
+      return !/(\.txt)|(\.deb)$/i.test(rel.name);
+    });
+    return all;
+  });
+};
+
+if (module === require.main) {
+  module.exports(require('@root/request')).then(function (all) {
+    all = require('../_webi/normalize.js')(all);
+    console.info(JSON.stringify(all));
+  });
+}