create

#!/bin/sh
#
# create: 创建指定名称的生产版本库。
#
# AUTHOR    Snakevil Zen <zhengyy@ucweb.com>
# COPYRIGHT © 2011 uc.cn.

export PATH="/usr/local/bin:/usr/bin:/bin"

# {{{ 基础定义

CREATE=`'basename' "$0"`

CREATOR_REGEX='^\([^[:space:]]\+ \)\+<[[:alnum:]_\.-]\+@'
CREATOR_REGEX="${CREATOR_REGEX}\([[:alnum:]_\.-]\+\.\)\+"
CREATOR_REGEX="${CREATOR_REGEX}[[:alnum:]_\.-]\+>$"

# }}}

# {{{ 规约错误描述

# 1
readonly E_FOR_HG_ONLY='请切换为 hg 帐号再运行本程序。'
# 2
readonly E_USAGE="请遵循格式：${CREATE} <版本库名称> by <创建者身份>"
# 3
readonly E_REPO_NAME_REQUIRED='『版本库名称』不能为空。'
# 4
readonly E_REPO_NAME_USED='『版本库名称』"%s"已被使用过。'
# 5
readonly E_CREATOR_REQUIRED='『创建者身份』请遵循“全名 <邮件地址>”的写法规范。'
# 6
readonly E_FOR_UCHGD_ONLY='请先行安装 UCHGd 后再运行本程序。'
# 7
readonly E_FOR_MERCURIAL_ONLY='请先行安装 Mercurial 后再运行本程序。'
# 8
readonly E_CREATION_FAILED='创建版本库失败…'

# }}}

# {{{ 基础函数定义 - _halt()

_halt() {
  [ 0 -eq $# ] && exit 0

  local code=$1
  shift

  [ 0 -lt $# ] && {
    local mesg="UCHGd: $1"
    shift

    'printf' "${mesg}" "$@"
    echo ''
  }

  exit $code
}

# }}}

# {{{ 环境检查

[ 'hg' = `'id' -un` ] || _halt 1 "${E_FOR_HG_ONLY}"

'which' 'hg' > /dev/null 2>&1 || _halt 7 "${E_FOR_MERCURIAL_ONLY}"

[ -x "${HOME}/ucsh" -a -x "${HOME}/permq" ] || _halt 6 "${E_FOR_UCHGD_ONLY}"

[ 3 -eq $# -a 'xby' = "x$2" ] || _halt 2 "${E_USAGE}"

# }}}

# {{{ 参数处理

[ -n "$1" ] || _halt 3 "${E_REPO_NAME_REQUIRED}"

REPO_NAME=`'basename' "$1" .hg`

[ -d "${HOME}/repos/${REPO_NAME}.hg/.hg/store" ] \
  && _halt 4 "${E_REPO_NAME_USED}" "${REPO_NAME}"

echo "$3" | 'grep' -q "${CREATOR_REGEX}" || _halt 5 "${E_CREATOR_REQUIRED}"

CREATOR="$3"

# }}}

# {{{ 创建版本库

DUMMY_HG="/tmp/dummy~$$.hg"

'hg' init "${HOME}/repos/${REPO_NAME}.hg" 2> /dev/null \
  || _halt 8 "${E_CREATOR_REQUIRED}"

'mv' -f "${HOME}/.hgrc" "${HOME}/.hgrc~skipped"

'hg' init "${DUMMY_HG}"
echo 'syntax: glob' > "${DUMMY_HG}/.hgignore"
echo '.*' >> "${DUMMY_HG}/.hgignore"
cd "${DUMMY_HG}"
'hg' branch stable > /dev/null
'hg' add .hgignore
'hg' commit -m'PROJECT INITIALIZED' -u"${CREATOR}"
'hg' push "${HOME}/repos/${REPO_NAME}.hg" > /dev/null
'rm' -fR "${DUMMY_HG}"

'mv' -f "${HOME}/.hgrc~skipped" "${HOME}/.hgrc"

# }}}

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