From f23d17c2f2891a635368082e9760ab757069222a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?V=C3=ADtor=20Galv=C3=A3o?= <info@vitorgalvao.com>
Date: Wed, 3 Feb 2016 20:28:36 +0000
Subject: [PATCH] added scripts for outdated appcasts

---
 developer/bin/find_outdated_appcasts  | 121 ++++++++++++++++++++++++++
 developer/bin/fix_outdated_appcasts   |  78 +++++++++++++++++
 developer/bin/merge_outdated_appcasts |  99 +++++++++++++++++++++
 3 files changed, 298 insertions(+)
 create mode 100755 developer/bin/find_outdated_appcasts
 create mode 100755 developer/bin/fix_outdated_appcasts
 create mode 100755 developer/bin/merge_outdated_appcasts

diff --git a/developer/bin/find_outdated_appcasts b/developer/bin/find_outdated_appcasts
new file mode 100755
index 00000000000..79cd8aa390f
--- /dev/null
+++ b/developer/bin/find_outdated_appcasts
@@ -0,0 +1,121 @@
+#!/bin/bash
+
+readonly caskroom_online='https://github.com/caskroom'
+readonly caskroom_repos_dir='/tmp/caskroom_repos'
+readonly caskroom_repos=(homebrew-cask homebrew-versions homebrew-fonts homebrew-eid homebrew-unofficial)
+readonly curl_flags=(--silent --location --header 'User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.152 Safari/537.36')
+inaccessible_appcasts=()
+
+if [[ ! $(which 'ghi') ]] || ! security find-internet-password -s github.com -l 'ghi token' &> /dev/null; then
+  echo -e "$(tput setaf 1)
+    This script requires 'ghi' installed and configured.
+    If you have [Homebrew](http://brew.sh), you can install it with 'brew install ghi'.
+    To configure it, run 'ghi config --auth <username>'. Your Github password will be required, but is never stored.
+  $(tput sgr0)" | sed -E 's/ {4}//' >&2
+  exit 1
+fi
+
+function message {
+  echo "${1}"
+}
+
+function go_to_repos_dir {
+  [[ ! -d "${caskroom_repos_dir}" ]] && mkdir -p "${caskroom_repos_dir}"
+  cd "${caskroom_repos_dir}" || exit 1
+}
+
+function go_to_repo_and_update {
+  local repo_name repo_dir casks_dir
+
+  repo_name="${1}"
+  repo_dir="${caskroom_repos_dir}/${repo_name}"
+  casks_dir="${repo_dir}/Casks"
+
+  if [[ ! -d "${repo_dir}" ]]; then
+    go_to_repos_dir
+
+    message "Cloning ${repo_name}…"
+    git clone "https://github.com/caskroom/${repo_name}.git" --quiet
+
+    cd "${casks_dir}" || exit 1
+  else
+    cd "${casks_dir}" || exit 1
+
+    message "Updating ${repo_name}…"
+    git pull --rebase origin master --quiet
+  fi
+}
+
+function open_issue {
+  local repo_name cask_name cask_url version appcast_url issue_number
+
+  repo_name="${1}"
+  cask_name="${2}"
+  cask_url="${caskroom_online}/${repo_name}/blob/master/Casks/${cask_name}.rb"
+  version="${3}"
+  appcast_url="${4}"
+
+  message="$(echo "Outdated cask: ${cask_name}
+
+    Outdated cask: [\`${cask_name}\`](${cask_url}).
+
+    Info:
+    + version: \`${version}\`.
+    + appcast url: ${appcast_url}.
+  " | sed -E 's/^ {4}//')"
+
+  issue_number=$(ghi open --label 'outdated appcast' --message "${message}" | head -1 | perl -pe 's/^#(\d+): .*/\1/')
+  message "Opened issue: https://github.com/caskroom/${repo_name}/issues/${issue_number}."
+}
+
+function is_appcast_available {
+  local appcast_url
+
+  appcast_url="${1}"
+
+  http_status="$(curl "${curl_flags[@]}" --head --write-out '%{http_code}' "${appcast_url}" -o '/dev/null')"
+
+  [[ "${http_status}" == 200 ]]
+}
+
+function report_outdated_appcasts {
+  local repo_name cask_name appcast_url current_checkpoint new_checkpoint version
+
+  repo_name="${1}"
+
+  for cask_file in ./*; do
+    appcast_url="$(brew cask _stanza appcast "${cask_file}")"
+    [[ -z "${appcast_url}" ]] && continue # skip early if there is no appcast
+
+    cask_name="$(basename "${cask_file%.*}")"
+
+    message "Verifying appcast checkpoint for ${cask_name}…"
+
+    if is_appcast_available "${appcast_url}"; then
+      current_checkpoint="$(brew cask _stanza --yaml appcast "${cask_file}" | grep '^- :checkpoint' | awk '{print $3}')"
+      new_checkpoint="$(curl "${curl_flags[@]}" --compressed "${appcast_url}" | sed 's|<pubDate>[^<]*</pubDate>||g' | shasum --algorithm 256 | awk '{ print $1 }')"
+    else
+      message "There was an error checking the appcast for ${cask_name}."
+      inaccessible_appcasts+=("${repo_name}/${cask_name}")
+      continue
+    fi
+
+    if [[ "${current_checkpoint}" != "${new_checkpoint}" ]]; then
+      version="$(brew cask _stanza version "${cask_file}")"
+
+      message "${cask_name} is outdated. Opening issue in ${repo_name}…"
+      open_issue "${repo_name}" "${cask_name}" "${version}" "${appcast_url}"
+    fi
+  done
+}
+
+for repo in "${caskroom_repos[@]}"; do
+  go_to_repo_and_update "${repo}"
+  report_outdated_appcasts "${repo}"
+done
+
+if [[ ${#inaccessible_appcasts[@]} -gt 0 ]];then
+  echo # empty line
+  message 'Some casks have appcasts that errored out, and may need to be rechecked:'
+  printf '%s\n' "${inaccessible_appcasts[@]}"
+fi
diff --git a/developer/bin/fix_outdated_appcasts b/developer/bin/fix_outdated_appcasts
new file mode 100755
index 00000000000..6ac4eec176e
--- /dev/null
+++ b/developer/bin/fix_outdated_appcasts
@@ -0,0 +1,78 @@
+#!/bin/bash
+
+IFS=$'\n'
+
+readonly caskroom_repos_dir='/tmp/caskroom_repos'
+readonly caskroom_repos=(homebrew-cask homebrew-versions homebrew-fonts homebrew-eid homebrew-unofficial)
+
+if [[ ! $(which 'ghi') ]] || ! security find-internet-password -s github.com -l 'ghi token' &> /dev/null; then
+  echo -e "$(tput setaf 1)
+    This script requires 'ghi' installed and configured.
+    If you have [Homebrew](http://brew.sh), you can install it with 'brew install ghi'.
+    To configure it, run 'ghi config --auth <username>'. Your Github password will be required, but is never stored.
+  $(tput sgr0)" | sed -E 's/ {4}//' >&2
+  exit 1
+fi
+
+if [[ ! $(which 'cask-repair') ]]; then
+  echo -e "$(tput setaf 1)
+    This script requires 'cask-repair'.
+    If you have [Homebrew](http://brew.sh), you can install it with 'brew install vitorgalvao/tiny-scripts/cask-repair'.
+  $(tput sgr0)" | sed -E 's/ {4}//' >&2
+  exit 1
+fi
+
+function message {
+  echo "${1}"
+}
+
+function go_to_repos_dir {
+  [[ ! -d "${caskroom_repos_dir}" ]] && mkdir -p "${caskroom_repos_dir}"
+  cd "${caskroom_repos_dir}" || exit 1
+}
+
+function go_to_repo_and_update {
+  local repo_name repo_dir casks_dir
+
+  repo_name="${1}"
+  repo_dir="${caskroom_repos_dir}/${repo_name}"
+  casks_dir="${repo_dir}/Casks"
+
+  if [[ ! -d "${repo_dir}" ]]; then
+    go_to_repos_dir
+
+    message "Cloning ${repo_name}…"
+    git clone "https://github.com/caskroom/${repo_name}.git" --quiet
+
+    cd "${casks_dir}" || exit 1
+  else
+    cd "${casks_dir}" || exit 1
+
+    message "Updating ${repo_name}…"
+    git pull --rebase origin master --quiet
+  fi
+}
+
+function fix_outdated_appcasts {
+  local issue_number cask_name pr_number
+
+  for line in $(ghi list --state open --no-pulls --label 'outdated appcast' --reverse | tail -n +2); do
+    [[ "${line}" == 'None.' ]] && break # exit early if there are no relevant issues in repo
+
+    issue_number="$(awk '{print $1}' <<< "${line}")"
+    cask_name="$(awk '{print $4}' <<< "${line}")"
+
+    cask-repair --pull origin --push origin --open-appcast --closes-issue "${issue_number}" --blind-submit "${cask_name}"
+
+    if [[ "$?" -eq 0 ]]; then
+      pr_number="$(ghi list --pulls --creator | sed -n 2p | awk '{print $1}')"
+      ghi edit --label 'outdated appcast' "${pr_number}" &>/dev/null
+      ghi comment --close --message "Closing in favour of #${pr_number}." "${issue_number}" &>/dev/null
+    fi
+  done
+}
+
+for repo in "${caskroom_repos[@]}"; do
+  go_to_repo_and_update "${repo}"
+  fix_outdated_appcasts
+done
diff --git a/developer/bin/merge_outdated_appcasts b/developer/bin/merge_outdated_appcasts
new file mode 100755
index 00000000000..0ed8f6ea435
--- /dev/null
+++ b/developer/bin/merge_outdated_appcasts
@@ -0,0 +1,99 @@
+#!/bin/bash
+
+IFS=$'\n'
+
+readonly caskroom_online='https://github.com/caskroom'
+readonly caskroom_repos_dir='/tmp/caskroom_repos'
+readonly caskroom_repos=(homebrew-cask homebrew-versions homebrew-fonts homebrew-eid homebrew-unofficial)
+
+if [[ ! $(which 'ghi') ]] || ! security find-internet-password -s github.com -l 'ghi token' &> /dev/null; then
+  echo -e "$(tput setaf 1)
+    This script requires 'ghi' installed and configured.
+    If you have [Homebrew](http://brew.sh), you can install it with 'brew install ghi'.
+    To configure it, run 'ghi config --auth <username>'. Your Github password will be required, but is never stored.
+  $(tput sgr0)" | sed -E 's/ {4}//' >&2
+  exit 1
+fi
+
+if [[ ! $(which 'fastmerge') ]]; then
+  echo -e "$(tput setaf 1)
+    This script requires 'fastmerge'.
+    If you have [Homebrew](http://brew.sh), you can install it with 'brew install vitorgalvao/tiny-scripts/fastmerge'.
+  $(tput sgr0)" | sed -E 's/ {4}//' >&2
+  exit 1
+fi
+
+function message {
+  echo "${1}"
+}
+
+function go_to_repos_dir {
+  [[ ! -d "${caskroom_repos_dir}" ]] && mkdir -p "${caskroom_repos_dir}"
+  cd "${caskroom_repos_dir}" || exit 1
+}
+
+function go_to_repo_and_update {
+  local repo_name repo_dir casks_dir
+
+  repo_name="${1}"
+  repo_dir="${caskroom_repos_dir}/${repo_name}"
+  casks_dir="${repo_dir}/Casks"
+
+  if [[ ! -d "${repo_dir}" ]]; then
+    go_to_repos_dir
+
+    message "Cloning ${repo_name}…"
+    git clone "https://github.com/caskroom/${repo_name}.git" --quiet
+
+    cd "${casks_dir}" || exit 1
+  else
+    cd "${casks_dir}" || exit 1
+
+    message "Updating ${repo_name}…"
+    git pull --rebase origin master --quiet
+  fi
+}
+
+function delete_current_branch {
+  local current_branch
+
+  current_branch="$(git rev-parse --abbrev-ref HEAD)"
+  git checkout master --quiet
+  git branch -D "${current_branch}" --quiet
+}
+
+function delete_cask_repair_branches {
+  [[ $(ghi list --state open --pulls --label 'outdated appcast' | tail -1) == 'None.' ]] && cask-repair --push origin --delete-branches
+}
+
+function merge_outdated_appcasts {
+  local repo_name pr_number cask_name pr_url last_commit
+
+  repo_name="${1}"
+
+  for line in $(ghi list --state open --pulls --label 'outdated appcast' --reverse | tail -n +2); do
+    [[ "${line}" == 'None.' ]] && break # exit early if there are no relevant issues in repo
+
+    pr_number="$(awk '{print $1}' <<< "${line}")"
+    cask_name="$(awk '{print $3}' <<< "${line}")"
+    pr_url="${caskroom_online}/${repo_name}/pull/${pr_number}"
+
+    hub checkout "${pr_url}" &>/dev/null
+    last_commit="$(git log -n 1 --pretty=format:'%H')"
+    delete_current_branch
+
+    if [[ "$(hub ci-status "${last_commit}")" == 'success' ]]; then
+      message "Merging pull request for ${cask_name}…"
+      fastmerge --maintainer --remote origin "${pr_url}"
+    else
+      continue
+    fi
+  done
+}
+
+for repo in "${caskroom_repos[@]}"; do
+  go_to_repo_and_update "${repo}"
+  merge_outdated_appcasts "${repo}"
+  delete_cask_repair_branches
+  git gc
+done