init

1 files changed, 234 insertions, 0 deletions

diff --git a/Library/Homebrew/cask/developer/bin/project_stats b/Library/Homebrew/cask/developer/bin/project_stats
new file mode 100755
index 000000000..652b6d7b3
--- /dev/null
+++ b/Library/Homebrew/cask/developer/bin/project_stats
@@ -0,0 +1,234 @@
+#!/bin/bash
+#
+# project_stats
+#
+# stats on project/release from git database
+#
+
+###
+### settings
+###
+
+set -e               # exit on any uncaught error
+set +o histexpand    # don't expand history expressions
+shopt -s nocasematch # case-insensitive regular expressions
+
+###
+### configurable global variables
+###
+
+# these paths relative to project root
+declare -a cask_paths=(Casks)
+declare -a code_paths=(bin developer lib spec test brew-cask.rb Rakefile Gemfile Gemfile.lock .travis.yml .gitignore)
+declare -a doc_paths=(doc LICENSE "*.md")
+end_object="HEAD"
+
+###
+### global variables
+###
+
+cask_authors=''
+
+# prefer GNU xargs
+xargs="$(/usr/bin/which gxargs || printf '/usr/bin/xargs')"
+
+###
+### functions
+###
+
+warn () {
+    local message="$@"
+    message="${message//\\t/$'\011'}"
+    message="${message//\\n/$'\012'}"
+    message="${message%"${message##*[![:space:]]}"}"
+    printf "%s\n" "$message" 1>&2
+}
+
+die () {
+    warn "$@"
+    exit 1
+}
+
+cd_to_project_root () {
+    local script_dir="$(/usr/bin/dirname "$0")"
+    cd "$script_dir"
+    local git_root="$(git rev-parse --show-toplevel)"
+    if [[ -z "$git_root" ]]; then
+        die "ERROR: Could not find git project root"
+    fi
+    cd "$git_root"
+}
+
+warn_if_off_branch () {
+    local wanted_branch='master'
+    if [[ -n "$1" ]]; then
+        wanted_branch="$1"
+    fi
+
+    local current_branch="$(git rev-parse --abbrev-ref HEAD)"
+    if ! [[ "$current_branch" = "$wanted_branch" ]]; then
+        warn "\nWARNING: you are running from branch '$current_branch', not '$wanted_branch'\n\n"
+    fi
+}
+
+verify_git_object () {
+    local object="$1"
+
+    if ! git rev-parse --verify "$object" -- >/dev/null 2>&1; then
+        die "\nERROR: No such commit object: '$object'\n\n"
+    fi
+}
+
+print_contributor_stats () {
+    local start_object="$1"
+    local initial_commit="$2"
+
+    printf "====================\n"
+    printf "Contributors\n"
+    printf "====================\n"
+
+    local -a git_log_cmd=("git" "log" "--no-merges" "--format='%ae'" "${start_object}..${end_object}")
+    printf "Unique contributors"
+    if ! [[ "$start_object" = "$initial_commit" ]]; then
+        printf " since %s" "${start_object#v}"
+    fi
+    printf "\n"
+    cask_authors="$("${git_log_cmd[@]}" -- "${cask_paths[@]}" | /usr/bin/sort | /usr/bin/uniq | /usr/bin/wc -l)"
+    printf "  Casks\t%s\n" "$cask_authors"
+    printf "  code\t"
+    "${git_log_cmd[@]}" -- "${code_paths[@]}" | /usr/bin/sort | /usr/bin/uniq | /usr/bin/wc -l
+    printf "  docs\t"
+    "${git_log_cmd[@]}" -- "${doc_paths[@]}"  | /usr/bin/sort | /usr/bin/uniq | /usr/bin/wc -l
+    printf "  any\t"
+    "${git_log_cmd[@]}" -- .                  | /usr/bin/sort | /usr/bin/uniq | /usr/bin/wc -l
+    if ! [[ "$start_object" = "$initial_commit" ]]; then
+        local alltime_contribs="$(git log --no-merges --format='%ae' "${initial_commit}".."${end_object}" -- . | /usr/bin/sort | /usr/bin/uniq | /usr/bin/wc -l)"
+        local prior_contribs="$(git log --no-merges --format='%ae' "${initial_commit}".."${start_object}" -- . | /usr/bin/sort | /usr/bin/uniq | /usr/bin/wc -l)"
+        # arithmetic removes whitespace
+        ((alltime_contribs += 0))
+        ((new_contribs      = alltime_contribs - prior_contribs))
+        printf "\nAll-time contributors\t%s\n" "$alltime_contribs"
+        printf "New contributors since %s\t%s\n" "${start_object#v}" "$new_contribs"
+    fi
+    printf "\n"
+}
+
+print_commit_stats () {
+    local start_object="$1"
+    local initial_commit="$2"
+
+    printf "====================\n"
+    printf "Commits\n"
+    printf "====================\n"
+
+    local -a git_log_cmd=("git" "log" "--no-merges" "--format='%ae'" "${start_object}..${end_object}")
+    printf "Commit count"
+    if ! [[ "$start_object" = "$initial_commit" ]]; then
+        printf " since %s" "${start_object#v}"
+    fi
+    printf "\n"
+    printf "  Casks\t"
+    "${git_log_cmd[@]}" -- "${cask_paths[@]}" | /usr/bin/wc -l
+    printf "  code\t"
+    "${git_log_cmd[@]}" -- "${code_paths[@]}" | /usr/bin/wc -l
+    printf "  docs\t"
+    "${git_log_cmd[@]}" -- "${doc_paths[@]}"  | /usr/bin/wc -l
+    printf "  any\t"
+    "${git_log_cmd[@]}" -- .                  | /usr/bin/wc -l
+    if ! [[ "$start_object" = "$initial_commit" ]]; then
+        printf "\nAll-time commits\t"
+        git log --no-merges --format='%ae' "${initial_commit}".."${end_object}" -- . | /usr/bin/wc -l
+    fi
+    printf "\n"
+}
+
+print_doc_stats () {
+    local start_object="$1"
+    local initial_commit="$2"
+
+    printf "====================\n"
+    printf "Docs\n"
+    printf "====================\n"
+
+    local -a git_log_cmd=("git" "log" "--no-merges" "--format='%ae'" "${start_object}..${end_object}")
+    printf "Doc contributors"
+    if ! [[ "$start_object" = "$initial_commit" ]]; then
+        printf " since %s" "${start_object#v}"
+    fi
+    printf "\n  "
+    "${git_log_cmd[@]}" -- "${doc_paths[@]}" | /usr/bin/sort | /usr/bin/uniq | \
+      /usr/bin/egrep -v $'^\'(paul\\.t\\.hinze@gmail\\.com|fanquake@users\\.noreply\\.github\\.com|fanquake@gmail\\.com|info@vitorgalvao\\.com|calebcenter@live\\.com|hagins\\.josh@gmail\\.com|dragon\\.vctr@gmail\\.com|github@adityadalal\\.com|adityadalal924@users\\.noreply\\.github\\.com)\'$' | \
+      "$xargs" | /usr/bin/perl -pe 's{ }{, }g'           # '
+    printf "\n"
+}
+
+print_cask_stats () {
+    local start_object="$1"
+    local initial_commit="$2"
+
+    printf "====================\n"
+    printf "Casks\n"
+    printf "====================\n"
+
+    if ! [[ "$start_object" = "$initial_commit" ]]; then
+        local     new_casks="$(git diff --name-status "$start_object" "$end_object" -- "${cask_paths[@]}" | /usr/bin/grep '^A.*\.rb' | cut -f2 | /usr/bin/sort | /usr/bin/uniq | /usr/bin/wc -l)"
+        local deleted_casks="$(git diff --name-status "$start_object" "$end_object" -- "${cask_paths[@]}" | /usr/bin/grep '^D.*\.rb' | cut -f2 | /usr/bin/sort | /usr/bin/uniq | /usr/bin/wc -l)"
+        local updated_casks="$(git diff --name-status "$start_object" "$end_object" -- "${cask_paths[@]}" | /usr/bin/grep '^M.*\.rb' | cut -f2 | /usr/bin/sort | /usr/bin/uniq | /usr/bin/wc -l)"
+        # arithmetic removes whitespace
+        ((cask_authors  += 0))
+        ((deleted_casks += 0))
+        ((new_casks     -= deleted_casks))
+        ((updated_casks += 0))
+        printf "%s Casks added (%s updated) by %s contributors since %s\n" "$new_casks" "$updated_casks" "$cask_authors" "${start_object#v}"
+    fi
+
+    printf "Total current Casks in HEAD\t"
+    /usr/bin/find "${cask_paths[@]}" -name '*.rb' | /usr/bin/wc -l
+    printf "\n"
+}
+
+###
+### main
+###
+
+_project_stats () {
+    local arg_object="$1"
+
+    cd_to_project_root
+    warn_if_off_branch 'master'
+
+    local initial_commit="$(git log --pretty=format:%H -- | /usr/bin/tail -1)"
+    verify_git_object "$initial_commit"
+    local start_object="$initial_commit"
+
+    if [[ "$arg_object" = 'release' ]]; then
+        start_object="$(./developer/bin/get_release_tag)"
+    elif [[ -n "$arg_object" ]]; then
+        start_object="$arg_object"
+    fi
+    verify_git_object "$start_object"
+
+    print_contributor_stats "$start_object" "$initial_commit"
+    print_commit_stats      "$start_object" "$initial_commit"
+    print_doc_stats         "$start_object" "$initial_commit"
+    print_cask_stats        "$start_object" "$initial_commit"
+}
+
+# process args
+if [[ $1 =~ ^-+h(elp)?$ ]]; then
+    printf "project_stats [ <commit-object> ]
+
+With optional single argument, (eg a tag or commit-hash)
+show statistics since that commit object.
+
+Use the special argument 'release' to calculate since the
+most recent tag (usually the same as the last release).
+
+Without argument, show statistics since first commit.
+
+"
+    exit
+fi
+
+# dispatch main
+_project_stats "${@}"