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| 1 | +#!/usr/bin/env bash |
| 2 | + |
| 3 | +# Usage: ./docs_update_experiments.sh |
| 4 | +# |
| 5 | +# This script updates the available experimental features in the documentation. |
| 6 | +# It fetches the latest mainline and stable releases to extract the available |
| 7 | +# experiments and their descriptions. The script will update the |
| 8 | +# feature-stages.md file with a table of the latest experimental features. |
| 9 | + |
| 10 | +set -euo pipefail |
| 11 | +# shellcheck source=scripts/lib.sh |
| 12 | +source "$(dirname "${BASH_SOURCE[0]}")/../lib.sh" |
| 13 | +cdroot |
| 14 | + |
| 15 | +# From install.sh |
| 16 | +echo_latest_stable_version() { |
| 17 | + # https://gist.github.com/lukechilds/a83e1d7127b78fef38c2914c4ececc3c#gistcomment-2758860 |
| 18 | + version="$(curl -fsSLI -o /dev/null -w "%{url_effective}" https://github.com/coder/coder/releases/latest)" |
| 19 | + version="${version#https://github.com/coder/coder/releases/tag/v}" |
| 20 | + echo "v${version}" |
| 21 | +} |
| 22 | + |
| 23 | +echo_latest_mainline_version() { |
| 24 | + # Fetch the releases from the GitHub API, sort by version number, |
| 25 | + # and take the first result. Note that we're sorting by space- |
| 26 | + # separated numbers and without utilizing the sort -V flag for the |
| 27 | + # best compatibility. |
| 28 | + echo "v$( |
| 29 | + curl -fsSL https://api.github.com/repos/coder/coder/releases | |
| 30 | + awk -F'"' '/"tag_name"/ {print $4}' | |
| 31 | + tr -d v | |
| 32 | + tr . ' ' | |
| 33 | + sort -k1,1nr -k2,2nr -k3,3nr | |
| 34 | + head -n1 | |
| 35 | + tr ' ' . |
| 36 | + )" |
| 37 | +} |
| 38 | + |
| 39 | +# For testing or including experiments from `main`. |
| 40 | +echo_latest_main_version() { |
| 41 | + echo origin/main |
| 42 | +} |
| 43 | + |
| 44 | +sparse_clone_codersdk() { |
| 45 | + mkdir -p "${1}" |
| 46 | + cd "${1}" |
| 47 | + rm -rf "${2}" |
| 48 | + git clone --quiet --no-checkout "${PROJECT_ROOT}" "${2}" |
| 49 | + cd "${2}" |
| 50 | + git sparse-checkout set --no-cone codersdk |
| 51 | + git checkout "${3}" -- codersdk |
| 52 | + echo "${1}/${2}" |
| 53 | +} |
| 54 | + |
| 55 | +parse_all_experiments() { |
| 56 | + # Go doc doesn't include inline array comments, so this parsing should be |
| 57 | + # good enough. We remove all whitespaces so that we can extract a plain |
| 58 | + # string that looks like {}, {ExpA}, or {ExpA,ExpB,}. |
| 59 | + # |
| 60 | + # Example: ExperimentsAll=Experiments{ExperimentNotifications,ExperimentAutoFillParameters,} |
| 61 | + go doc -all -C "${dir}" ./codersdk ExperimentsAll | |
| 62 | + tr -d $'\n\t ' | |
| 63 | + grep -E -o 'ExperimentsAll=Experiments\{[^}]*\}' | |
| 64 | + sed -e 's/.*{\(.*\)}.*/\1/' | |
| 65 | + tr ',' '\n' |
| 66 | +} |
| 67 | + |
| 68 | +parse_experiments() { |
| 69 | + # Extracts the experiment name and description from the Go doc output. |
| 70 | + # The output is in the format: |
| 71 | + # |
| 72 | + # ||Add new experiments here! |
| 73 | + # ExperimentExample|example|This isn't used for anything. |
| 74 | + # ExperimentAutoFillParameters|auto-fill-parameters|This should not be taken out of experiments until we have redesigned the feature. |
| 75 | + # ExperimentMultiOrganization|multi-organization|Requires organization context for interactions, default org is assumed. |
| 76 | + # ExperimentCustomRoles|custom-roles|Allows creating runtime custom roles. |
| 77 | + # ExperimentNotifications|notifications|Sends notifications via SMTP and webhooks following certain events. |
| 78 | + # ExperimentWorkspaceUsage|workspace-usage|Enables the new workspace usage tracking. |
| 79 | + # ||ExperimentTest is an experiment with |
| 80 | + # ||a preceding multi line comment!? |
| 81 | + # ExperimentTest|test| |
| 82 | + # |
| 83 | + go doc -all -C "${1}" ./codersdk Experiment | |
| 84 | + sed \ |
| 85 | + -e 's/\t\(Experiment[^ ]*\)\ \ *Experiment = "\([^"]*\)"\(.*\/\/ \(.*\)\)\?/\1|\2|\4/' \ |
| 86 | + -e 's/\t\/\/ \(.*\)/||\1/' | |
| 87 | + grep '|' |
| 88 | +} |
| 89 | + |
| 90 | +workdir=build/docs/experiments |
| 91 | +dest=docs/contributing/feature-stages.md |
| 92 | + |
| 93 | +log "Updating available experimental features in ${dest}" |
| 94 | + |
| 95 | +declare -A experiments=() experiment_tags=() |
| 96 | + |
| 97 | +for channel in mainline stable; do |
| 98 | + log "Fetching experiments from ${channel}" |
| 99 | + |
| 100 | + tag=$(echo_latest_"${channel}"_version) |
| 101 | + dir="$(sparse_clone_codersdk "${workdir}" "${channel}" "${tag}")" |
| 102 | + |
| 103 | + declare -A all_experiments=() |
| 104 | + all_experiments_out="$(parse_all_experiments "${dir}")" |
| 105 | + if [[ -n "${all_experiments_out}" ]]; then |
| 106 | + readarray -t all_experiments_tmp <<<"${all_experiments_out}" |
| 107 | + for exp in "${all_experiments_tmp[@]}"; do |
| 108 | + all_experiments[$exp]=1 |
| 109 | + done |
| 110 | + fi |
| 111 | + |
| 112 | + # Track preceding/multiline comments. |
| 113 | + maybe_desc= |
| 114 | + |
| 115 | + while read -r line; do |
| 116 | + line=${line//$'\n'/} |
| 117 | + readarray -d '|' -t parts <<<"$line" |
| 118 | + |
| 119 | + # Missing var/key, this is a comment or description. |
| 120 | + if [[ -z ${parts[0]} ]]; then |
| 121 | + maybe_desc+="${parts[2]//$'\n'/ }" |
| 122 | + continue |
| 123 | + fi |
| 124 | + |
| 125 | + var="${parts[0]}" |
| 126 | + key="${parts[1]}" |
| 127 | + desc="${parts[2]}" |
| 128 | + desc=${desc//$'\n'/} |
| 129 | + |
| 130 | + # If desc (trailing comment) is empty, use the preceding/multiline comment. |
| 131 | + if [[ -z "${desc}" ]]; then |
| 132 | + desc="${maybe_desc% }" |
| 133 | + fi |
| 134 | + maybe_desc= |
| 135 | + |
| 136 | + # Skip experiments not listed in ExperimentsAll. |
| 137 | + if [[ ! -v all_experiments[$var] ]]; then |
| 138 | + log "Skipping ${var}, not listed in ExperimentsAll" |
| 139 | + continue |
| 140 | + fi |
| 141 | + |
| 142 | + # Don't overwrite desc, prefer first come, first served (i.e. mainline > stable). |
| 143 | + if [[ ! -v experiments[$key] ]]; then |
| 144 | + experiments[$key]="$desc" |
| 145 | + fi |
| 146 | + |
| 147 | + # Track the release channels where the experiment is available. |
| 148 | + experiment_tags[$key]+="${channel}, " |
| 149 | + done < <(parse_experiments "${dir}") |
| 150 | +done |
| 151 | + |
| 152 | +table="$( |
| 153 | + if [[ "${#experiments[@]}" -eq 0 ]]; then |
| 154 | + echo "Currently no experimental features are available in the latest mainline or stable release." |
| 155 | + exit 0 |
| 156 | + fi |
| 157 | +
|
| 158 | + echo "| Feature | Description | Available in |" |
| 159 | + echo "|---------|-------------|--------------|" |
| 160 | + for key in "${!experiments[@]}"; do |
| 161 | + desc=${experiments[$key]} |
| 162 | + tags=${experiment_tags[$key]%, } |
| 163 | + echo "| \`$key\` | $desc | ${tags} |" |
| 164 | + done |
| 165 | +)" |
| 166 | + |
| 167 | +# Use awk to print everything outside the BEING/END block and insert the |
| 168 | +# table in between. |
| 169 | +awk \ |
| 170 | + -v table="${table}" \ |
| 171 | + 'BEGIN{include=1} /BEGIN: available-experimental-features/{print; print table; include=0} /END: available-experimental-features/{include=1} include' \ |
| 172 | + "${dest}" \ |
| 173 | + >"${dest}".tmp |
| 174 | +mv "${dest}".tmp "${dest}" |
| 175 | + |
| 176 | +# Format the file for a pretty table (target single file for speed). |
| 177 | +(cd site && pnpm exec prettier --cache --write ../"${dest}") |
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