"msilib" --- 读写 Microsoft Installer 文件
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**源代码:** Lib/msilib/__init__.py

======================================================================

"msilib" 支持创建 Microsoft 安装器 (".msi") 文件。 由于这种文件往往包
含一个嵌入的 "cabinet" 文件 (".cab")，它也暴露了一个用于创建 CAB 文件
的 API。  目前没有实现对读取 ".cab" 文件的支持；对于读取 ".msi" 数据库
的支持则是可能的。

这个包的目标是提供对 ".msi" 文件中的全部表的完整访问，因此，它是一个相
当低层级的 API。 这个包的两个主要应用是 "distutils" 命令 "bdist_msi"，
以及创建 Python 安装程序包本身 (尽管它目前是使用不同版本的 "msilib")。

这个包的内容可以大致分为四个部分：低层级 CAB 例程、低层级 MSI 例程、高
层级 MSI 例程以及标准表结构。

msilib.FCICreate(cabname, files)

   新建一个名为 *cabname* 的 CAB 文件。 *files* 必须是一个元组的列表，
   其中每个元组包含磁盘文件的名称，以及 CAB 文件内文件的名称。

   这些文件将按照它们在列表中出现的顺序被添加到 CAB 文件中。 所有文件
   都会被添加到单个 CAB 文件，使用 MSZIP 压缩算法。

   目前没有暴露 MSI 创建的各个步骤对 Python 的回调。

msilib.UuidCreate()

   返回一个新的唯一标识符的字符串表示形式。 这封装了 Windows API 函数
   "UuidCreate()" 和 "UuidToString()"。

msilib.OpenDatabase(path, persist)

   通过调用 MsiOpenDatabase 来返回一个新的数据库对象。 *path* 为 MSI
   文件的名称；*persist* 可以是常量 "MSIDBOPEN_CREATEDIRECT",
   "MSIDBOPEN_CREATE", "MSIDBOPEN_DIRECT", "MSIDBOPEN_READONLY" 或
   "MSIDBOPEN_TRANSACT" 中的一个，并可能包括旗标 "MSIDBOPEN_PATCHFILE"
   。 请参阅 Microsoft 文档了解这些旗标的含义；根据这些旗标，将打开一
   个现有数据库，或者创建一个新数据库。

msilib.CreateRecord(count)

   通过调用 "MSICreateRecord()" 来返回一个新的记录对象。 *count* 为记
   录的字段数量。

msilib.init_database(name, schema, ProductName, ProductCode, ProductVersion, Manufacturer)

   创建并返回一个新的数据库 *name*，使用 *schema* 来初始化它，并设置属
   性 *ProductName*, *ProductCode*, *ProductVersion* 和 *Manufacturer*
   。

   *schema* 必须是一个包含 "tables" 和 "_Validation_records" 属性的模
   块对象；在通常情况下，"msilib.schema" 应当被使用。

   此此函数返回时该数据库将只包含方案和验证记录。

msilib.add_data(database, table, records)

   将所有 *records* 添加到 *database* 中名为 *table* 的表。

   *table* 参数必须为 MSI 方案中预定义的表之一，即 "'Feature'",
   "'File'", "'Component'", "'Dialog'", "'Control'" 等等。

   *records* 应当为一个元组的列表，其中的每个元组都包含与表结构对应的
   记录的所有字段。 对于可选字段，可以传入 "None"。

   字段值可以为整数、字符串或 Binary 类的实例。

class msilib.Binary(filename)

   代表 Binary 表中的条目；使用 "add_data()" 插入这样的对象会将名为
   *filename* 文件读入表中。

msilib.add_tables(database, module)

   将来自 *module* 的所有表内容添加到 *database*。 *module* 必须包括一
   个列出其内容需要被添加的所有表的属性 *tables*，并且每个具有实际内容
   的表对应一个属性。

   这通常被用来安装序列表。

msilib.add_stream(database, name, path)

   将文件 *path* 添加到 *database* 的 "_Stream" 表，使用流名称 *name*
   。

msilib.gen_uuid()

   Return a new UUID, in the format that MSI typically requires (i.e.
   in curly braces, and with all hexdigits in upper-case).

参见: FCICreate UuidCreate UuidToString


Database Objects
================

Database.OpenView(sql)

   Return a view object, by calling "MSIDatabaseOpenView()". *sql* is
   the SQL statement to execute.

Database.Commit()

   Commit the changes pending in the current transaction, by calling
   "MSIDatabaseCommit()".

Database.GetSummaryInformation(count)

   Return a new summary information object, by calling
   "MsiGetSummaryInformation()".  *count* is the maximum number of
   updated values.

Database.Close()

   Close the database object, through "MsiCloseHandle()".

   3.7 新版功能.

参见:

  MSIDatabaseOpenView MSIDatabaseCommit MSIGetSummaryInformation
  MsiCloseHandle


View Objects
============

View.Execute(params)

   Execute the SQL query of the view, through "MSIViewExecute()". If
   *params* is not "None", it is a record describing actual values of
   the parameter tokens in the query.

View.GetColumnInfo(kind)

   Return a record describing the columns of the view, through calling
   "MsiViewGetColumnInfo()". *kind* can be either "MSICOLINFO_NAMES"
   or "MSICOLINFO_TYPES".

View.Fetch()

   Return a result record of the query, through calling
   "MsiViewFetch()".

View.Modify(kind, data)

   Modify the view, by calling "MsiViewModify()". *kind* can be one of
   "MSIMODIFY_SEEK", "MSIMODIFY_REFRESH", "MSIMODIFY_INSERT",
   "MSIMODIFY_UPDATE", "MSIMODIFY_ASSIGN", "MSIMODIFY_REPLACE",
   "MSIMODIFY_MERGE", "MSIMODIFY_DELETE",
   "MSIMODIFY_INSERT_TEMPORARY", "MSIMODIFY_VALIDATE",
   "MSIMODIFY_VALIDATE_NEW", "MSIMODIFY_VALIDATE_FIELD", or
   "MSIMODIFY_VALIDATE_DELETE".

   *data* must be a record describing the new data.

View.Close()

   Close the view, through "MsiViewClose()".

参见:

  MsiViewExecute MSIViewGetColumnInfo MsiViewFetch MsiViewModify
  MsiViewClose


Summary Information Objects
===========================

SummaryInformation.GetProperty(field)

   Return a property of the summary, through
   "MsiSummaryInfoGetProperty()". *field* is the name of the property,
   and can be one of the constants "PID_CODEPAGE", "PID_TITLE",
   "PID_SUBJECT", "PID_AUTHOR", "PID_KEYWORDS", "PID_COMMENTS",
   "PID_TEMPLATE", "PID_LASTAUTHOR", "PID_REVNUMBER",
   "PID_LASTPRINTED", "PID_CREATE_DTM", "PID_LASTSAVE_DTM",
   "PID_PAGECOUNT", "PID_WORDCOUNT", "PID_CHARCOUNT", "PID_APPNAME",
   or "PID_SECURITY".

SummaryInformation.GetPropertyCount()

   Return the number of summary properties, through
   "MsiSummaryInfoGetPropertyCount()".

SummaryInformation.SetProperty(field, value)

   Set a property through "MsiSummaryInfoSetProperty()". *field* can
   have the same values as in "GetProperty()", *value* is the new
   value of the property. Possible value types are integer and string.

SummaryInformation.Persist()

   Write the modified properties to the summary information stream,
   using "MsiSummaryInfoPersist()".

参见:

  MsiSummaryInfoGetProperty MsiSummaryInfoGetPropertyCount
  MsiSummaryInfoSetProperty MsiSummaryInfoPersist


Record Objects
==============

Record.GetFieldCount()

   Return the number of fields of the record, through
   "MsiRecordGetFieldCount()".

Record.GetInteger(field)

   Return the value of *field* as an integer where possible.  *field*
   must be an integer.

Record.GetString(field)

   Return the value of *field* as a string where possible.  *field*
   must be an integer.

Record.SetString(field, value)

   Set *field* to *value* through "MsiRecordSetString()". *field* must
   be an integer; *value* a string.

Record.SetStream(field, value)

   Set *field* to the contents of the file named *value*, through
   "MsiRecordSetStream()". *field* must be an integer; *value* a
   string.

Record.SetInteger(field, value)

   Set *field* to *value* through "MsiRecordSetInteger()". Both
   *field* and *value* must be an integer.

Record.ClearData()

   Set all fields of the record to 0, through "MsiRecordClearData()".

参见:

  MsiRecordGetFieldCount MsiRecordSetString MsiRecordSetStream
  MsiRecordSetInteger MsiRecordClearData


Errors
======

All wrappers around MSI functions raise "MSIError"; the string inside
the exception will contain more detail.


CAB Objects
===========

class msilib.CAB(name)

   The class "CAB" represents a CAB file. During MSI construction,
   files will be added simultaneously to the "Files" table, and to a
   CAB file. Then, when all files have been added, the CAB file can be
   written, then added to the MSI file.

   *name* is the name of the CAB file in the MSI file.

   append(full, file, logical)

      Add the file with the pathname *full* to the CAB file, under the
      name *logical*.  If there is already a file named *logical*, a
      new file name is created.

      Return the index of the file in the CAB file, and the new name
      of the file inside the CAB file.

   commit(database)

      Generate a CAB file, add it as a stream to the MSI file, put it
      into the "Media" table, and remove the generated file from the
      disk.


Directory Objects
=================

class msilib.Directory(database, cab, basedir, physical, logical, default[, componentflags])

   Create a new directory in the Directory table. There is a current
   component at each point in time for the directory, which is either
   explicitly created through "start_component()", or implicitly when
   files are added for the first time. Files are added into the
   current component, and into the cab file.  To create a directory, a
   base directory object needs to be specified (can be "None"), the
   path to the physical directory, and a logical directory name.
   *default* specifies the DefaultDir slot in the directory table.
   *componentflags* specifies the default flags that new components
   get.

   start_component(component=None, feature=None, flags=None, keyfile=None, uuid=None)

      Add an entry to the Component table, and make this component the
      current component for this directory. If no component name is
      given, the directory name is used. If no *feature* is given, the
      current feature is used. If no *flags* are given, the
      directory's default flags are used. If no *keyfile* is given,
      the KeyPath is left null in the Component table.

   add_file(file, src=None, version=None, language=None)

      Add a file to the current component of the directory, starting a
      new one if there is no current component. By default, the file
      name in the source and the file table will be identical. If the
      *src* file is specified, it is interpreted relative to the
      current directory. Optionally, a *version* and a *language* can
      be specified for the entry in the File table.

   glob(pattern, exclude=None)

      Add a list of files to the current component as specified in the
      glob pattern.  Individual files can be excluded in the *exclude*
      list.

   remove_pyc()

      Remove ".pyc" files on uninstall.

参见: Directory Table File Table Component Table FeatureComponents Table


相关特性
========

class msilib.Feature(db, id, title, desc, display, level=1, parent=None, directory=None, attributes=0)

   Add a new record to the "Feature" table, using the values *id*,
   *parent.id*, *title*, *desc*, *display*, *level*, *directory*, and
   *attributes*. The resulting feature object can be passed to the
   "start_component()" method of "Directory".

   set_current()

      Make this feature the current feature of "msilib". New
      components are automatically added to the default feature,
      unless a feature is explicitly specified.

参见: Feature Table


GUI classes
===========

"msilib" provides several classes that wrap the GUI tables in an MSI
database. However, no standard user interface is provided; use
"bdist_msi" to create MSI files with a user-interface for installing
Python packages.

class msilib.Control(dlg, name)

   Base class of the dialog controls. *dlg* is the dialog object the
   control belongs to, and *name* is the control's name.

   event(event, argument, condition=1, ordering=None)

      Make an entry into the "ControlEvent" table for this control.

   mapping(event, attribute)

      Make an entry into the "EventMapping" table for this control.

   condition(action, condition)

      Make an entry into the "ControlCondition" table for this
      control.

class msilib.RadioButtonGroup(dlg, name, property)

   Create a radio button control named *name*. *property* is the
   installer property that gets set when a radio button is selected.

   add(name, x, y, width, height, text, value=None)

      Add a radio button named *name* to the group, at the coordinates
      *x*, *y*, *width*, *height*, and with the label *text*. If
      *value* is "None", it defaults to *name*.

class msilib.Dialog(db, name, x, y, w, h, attr, title, first, default, cancel)

   Return a new "Dialog" object. An entry in the "Dialog" table is
   made, with the specified coordinates, dialog attributes, title,
   name of the first, default, and cancel controls.

   control(name, type, x, y, width, height, attributes, property, text, control_next, help)

      Return a new "Control" object. An entry in the "Control" table
      is made with the specified parameters.

      This is a generic method; for specific types, specialized
      methods are provided.

   text(name, x, y, width, height, attributes, text)

      Add and return a "Text" control.

   bitmap(name, x, y, width, height, text)

      Add and return a "Bitmap" control.

   line(name, x, y, width, height)

      Add and return a "Line" control.

   pushbutton(name, x, y, width, height, attributes, text, next_control)

      Add and return a "PushButton" control.

   radiogroup(name, x, y, width, height, attributes, property, text, next_control)

      Add and return a "RadioButtonGroup" control.

   checkbox(name, x, y, width, height, attributes, property, text, next_control)

      Add and return a "CheckBox" control.

参见:

  Dialog Table Control Table Control Types ControlCondition Table
  ControlEvent Table EventMapping Table RadioButton Table


Precomputed tables
==================

"msilib" provides a few subpackages that contain only schema and table
definitions. Currently, these definitions are based on MSI version
2.0.

msilib.schema

   This is the standard MSI schema for MSI 2.0, with the *tables*
   variable providing a list of table definitions, and
   *_Validation_records* providing the data for MSI validation.

msilib.sequence

   此模块包含针对标准序列表的表内容: *AdminExecuteSequence*,
   *AdminUISequence*, *AdvtExecuteSequence*, *InstallExecuteSequence*
   和 *InstallUISequence*。

msilib.text

   此模块包含 UIText 和 ActionText 表的定义，用于标准安装器动作。
