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feat(go-air): add go-air feature for installing air-verse/air
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Lines changed: 141 additions & 8 deletions

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‎src/go-air/NOTES.md‎

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## OS Support
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This Feature should work on recent versions of Debian/Ubuntu-based distributions with the `apt` package manager installed.
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`bash` is required to execute the `install.sh` script.

‎src/go-air/devcontainer-feature.json‎

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{
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"name": "Air",
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"id": "go-air",
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"version": "1.0.0",
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"documentationURL": "http://github.com/omoxyz/devcontainer-features/tree/main/src/go-air",
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"description": "Install Air live reloader for Go apps.",
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"options": {
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"version": {
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"default": "latest",
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"description": "Select the version to install.",
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"proposals": [
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"latest"
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],
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"type": "string"
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}
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},
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"dependsOn": {
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"ghcr.io/devcontainers/features/go": {}
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}
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}

‎src/go-air/install.sh‎

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#!/usr/bin/env bash
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source ./utils.sh
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AIR_VERSION=${VERSION:-"latest"}
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GITHUB_REPO=https://github.com/air-verse/air/
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# Exit immediately if a command exits with a non-zero status.
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set -e
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export DEBIAN_FRONTEND=noninteractive
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version_list=$(git ls-remote --tags ${GITHUB_REPO})
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versions=($(find_latest_versions $AIR_VERSION version_list "tags/v"))
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if [ $? -eq 1 ]; then
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echo "Can't find appropriate version"
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exit 1
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fi
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latest_version=${versions[0]}
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prev_version=${versions[1]}
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echo "Downloading air v${latest_version}...."
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set +e
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go install github.com/air-verse/air@v${latest_version}
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exit_code=$?
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set -e
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if [ "$exit_code" != "0" ]; then
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# Handle situation where git tags are ahead of what was is available to actually download
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echo "(!) air version ${latest_version} failed to download. Attempting to fall back to ${prev_version} to retry..."
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go install github.com/air-verse/air@v${prev_version}
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fi

‎src/go-air/utils.sh‎

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#!/usr/bin/env bash
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# Find 2 latest versions that appropriate to requested version
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find_latest_versions() {
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local requested_version=$1
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local version_list=${!2}
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# Version prefix such as "tags/v"
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local prefix_regex=${3:-''}
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# Version number part separator such as "." in "1.0.0"
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local separator=${4:-"."}
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local escaped_separator=${separator//./\\.}
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local suffix_regex=${5:-''}
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# Format and sort version list
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local version_regex="${prefix_regex}\\K[0-9]+(${escaped_separator}[0-9]+){0,2}${suffix_regex}$"
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version_list="$(printf "%s\n" "${version_list[@]}" | grep -oP $version_regex| tr -d ' ' | tr $separator '.' | sort -rV)"
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if [ "${requested_version}" = "latest" ]; then
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echo "$(echo "${version_list}" | head -n 2)"
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else
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# Try to get latest matching version
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set +e
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local regex="^"
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# Get major version or exit
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local major="$(echo "${requested_version}" | grep -oE '^[0-9]+')"
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if [ $major != '' ]; then
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regex="${regex}${major}"
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else
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echo "Invalid version \"${requested_version}\". Use \"latest\" or MAJOR[.MINOR][.PATCH]"
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return 1
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fi
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# Get minor number or accept any
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local minor="$(echo "${requested_version}" | grep -oP '^[0-9]+\.\K[0-9]+')"
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regex="${regex}$([ "$minor" != '' ] && echo "${escaped_separator}${minor}" || echo "(${escaped_separator}[0-9]+)?")"
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# Get patch number or accept any
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local patch="$(echo "${requested_version}" | grep -oP '^[0-9]+\.[0-9]+\.\K[0-9]+')"
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regex="${regex}$([ "$patch" != '' ] && echo "${escaped_separator}${patch}" || echo "(${escaped_separator}[0-9]+)?")"
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set -e
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echo "$(echo "${version_list}" | grep -E -m 2 "^${regex}$")"
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fi
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}

‎src/lefthook/devcontainer-feature.json‎

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{
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"name": "Lefthook",
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"id": "lefthook",
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"version": "1.0.0",
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"version": "1.0.1",
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"documentationURL": "http://github.com/omoxyz/devcontainer-features/tree/main/src/lefthook",
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"description": "Install Lefthook fast polyglot Git hooks manager.",
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"options": {
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},
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"installDirectlyFromGitHubRelease": {
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"type": "boolean",
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"description": "Install directly from Github release or from package manager (apt).",
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"default": true
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}
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}

‎src/lefthook/install.sh‎

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#! /usr/bin/bash
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#!/usr/bin/env bash
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source ./utils.sh
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install_from_github() {
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local version_list=$(git ls-remote --tags ${GITHUB_REPO})
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versions=($(find_latest_version $LEFTHOOK_VERSION version_list "tags/v"))
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latest_version=${versions[0]}
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prev_version=${versions[1]}
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versions=($(find_latest_versions $LEFTHOOK_VERSION version_list "tags/v"))
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if [ $? -eq 1 ]; then
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echo "Can't find appropriate version"
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exit 1
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fi
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latest_version=${versions[0]}
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prev_version=${versions[1]}
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echo "Downloading lefthook v${latest_version}...."
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check_packages wget
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curl -1sLf 'https://dl.cloudsmith.io/public/evilmartians/lefthook/setup.deb.sh' | bash
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local version_list=$(get_apt_versions lefthook)
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versions=($(find_latest_version $LEFTHOOK_VERSION version_list))
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versions=($(find_latest_versions $LEFTHOOK_VERSION version_list))
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latest_version=${versions[0]}
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if [ $? -eq 1 ]; then

‎src/lefthook/utils.sh‎

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#!/usr/bin/env bash
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# Refresh the local package index if no package list entries are stored on the system.
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apt_get_update() {
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if [ "$(find /var/lib/apt/lists/* | wc -l)" = "0" ]; then
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fi
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}
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find_latest_version() {
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# Find 2 latest versions that appropriate to requested version
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find_latest_versions() {
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local requested_version=$1
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local version_list=${!2}
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‎test/go-air/scenarios.json‎

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{
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"test": {
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"image": "mcr.microsoft.com/devcontainers/base:debian",
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"features": {
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"go-air": {}
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}
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}
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}

‎test/go-air/test.sh‎

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#!/usr/bin/env bash
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set -e
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source dev-container-features-test-lib
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check "air version" air -v
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reportResults

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