VIM: pi_getscript

## PI_GETSCRIPT

    *pi_getscript.txt*  For Vim version 9.1.  Last change: 2025 Aug 10

    		GETSCRIPT REFERENCE MANUAL  by Charles E. Campbell

    Original Author:  Charles E. Campbell  <NcampObell@SdrPchip.AorgM-NOSPAM>
    	 (remove NOSPAM from the email address)
    						*GetLatestVimScripts-copyright*
    Copyright: (c) 2004-2012 by Charles E. Campbell	*glvs-copyright*
    	The VIM LICENSE (see |copyright|) applies to the files in this
    	package, including getscriptPlugin.vim, getscript.vim,
    	GetLatestVimScripts.dist, and pi_getscript.txt, except use "getscript"
    	instead of "Vim".  Like anything else that's free, getscript and its
    	associated files are provided *as is* and comes with no warranty of
    	any kind, either expressed or implied.  No guarantees of
    	merchantability.  No guarantees of suitability for any purpose.  By
    	using this plugin, you agree that in no event will the copyright
    	holder be liable for any damages resulting from the use of this
    	software. Use at your own risk!

    Getscript is a plugin that simplifies retrieval of the latest versions of the
    scripts that you yourself use!  Typing |:GLVS| will invoke getscript; it will
    then use the <GetLatestVimScripts.dat> (see |GetLatestVimScripts_dat|) file to
    get the latest versions of scripts listed therein from https://www.vim.org/.

    1. Contents				*glvs-contents* *glvs* *getscript*
    					*GetLatestVimScripts*

    	1. Contents........................................: |glvs-contents|
    	2. GetLatestVimScripts -- Getting Started..........: |glvs-install|
    	3. GetLatestVimScripts Usage.......................: |glvs-usage|
    	4. GetLatestVimScripts Data File...................: |glvs-data|
    	5. GetLatestVimScripts Friendly Plugins............: |glvs-plugins|
    	6. GetLatestVimScripts AutoInstall.................: |glvs-autoinstall|
    	7. GetLatestViMScripts Options.....................: |glvs-options|
    	8. GetLatestVimScripts Algorithm...................: |glvs-alg|
    	9. GetLatestVimScripts History.....................: |glvs-hist|

    2. GetLatestVimScripts -- Getting Started		*getscript-start*
    						*getlatestvimscripts-install*

    	VERSION FROM VIM DISTRIBUTION			*glvs-dist-install*

    Vim 7.0 does not include the GetLatestVimScripts.dist file which
    serves as an example and a template.  So, you'll need to create
    your own!  See |GetLatestVimScripts_dat|.

    	VERSION FROM VIM SF NET				*glvs-install*

    NOTE: The last step, that of renaming/moving the GetLatestVimScripts.dist
    file, is for those who have just downloaded GetLatestVimScripts.tar.bz2 for
    the first time.

    The GetLatestVimScripts.dist file serves as an example and a template for your
    own personal list.  Feel free to remove all the scripts mentioned within it;
    the "important" part of it is the first two lines.

    Your computer needs to have wget or curl for GetLatestVimScripts to do its work.

    	1. if compressed:  gunzip getscript.vmb.gz
    	2. Unix:
    		vim getscript.vmb
    		:so %
    		:q
    		cd ~/.vim/GetLatest
    		mv GetLatestVimScripts.dist GetLatestVimScripts.dat
    		(edit GetLatestVimScripts.dat to install your own personal
    		list of desired plugins -- see |GetLatestVimScripts_dat|)

    	3. Windows:
    		vim getscript.vmb
    		:so %
    		:q
    		cd **path-to-vimfiles**/GetLatest
    		mv GetLatestVimScripts.dist GetLatestVimScripts.dat
    		(edit GetLatestVimScripts.dat to install your own personal
    		list of desired plugins -- see |GetLatestVimScripts_dat|)

    3. GetLatestVimScripts Usage				*glvs-usage* *:GLVS*

    Unless it has been defined elsewhere,

    	:GLVS

    will invoke GetLatestVimScripts().  If some other plugin has defined that
    command, then you may type

    	:GetLatestVimScripts

    The script will attempt to update and, if permitted, will automatically
    install scripts from http://vim.sourceforge.net/.  To do so it will peruse a
    file,

    	.vim/GetLatest/GetLatestVimScripts.dat                    (unix)

    or
    	..wherever..\vimfiles\GetLatest\GetLatestVimScripts.dat   (windows)
    (see |glvs-data|), and examine plugins in your [.vim|vimfiles]/plugin
    directory (see |glvs-plugins|).

    Scripts which have been downloaded will appear in the
    ~/.vim/GetLatest (unix) or ..wherever..\vimfiles\GetLatest (windows)
    subdirectory.  GetLatestVimScripts will attempt to automatically
    install them if you have the following line in your <.vimrc>:

    	let g:GetLatestVimScripts_allowautoinstall=1

    The <GetLatestVimScripts.dat> file will be automatically be updated to
    reflect the latest version of script(s) so downloaded.
    (also see |glvs-options|)

    4. GetLatestVimScripts Data File		*getscript-data* *glvs-data*
    						*:GetLatestVimScripts_dat*
    The data file <GetLatestVimScripts.dat> must have for its first two lines
    the following text:

    	ScriptID SourceID Filename

    Following those two lines are three columns; the first two are numeric
    followed by a text column.  The GetLatest/GetLatestVimScripts.dist file
    contains an example of such a data file.  Anything following a #... is
    ignored, so you may embed comments in the file.

    The first number on each line gives the script's ScriptID.  When you're about
    to use a web browser to look at scripts on http://vim.sf.net/, just before you
    click on the script's link, you'll see a line resembling

    	http://vim.sourceforge.net/scripts/script.php?script_id=40

    The "40" happens to be a ScriptID that GetLatestVimScripts needs to
    download the associated page, and is assigned by vim.sf.net itself
    during initial uploading of the plugin.

    The second number on each line gives the script's SourceID.  The SourceID
    records the count of uploaded scripts as determined by vim.sf.net; hence it
    serves to indicate "when" a script was uploaded.  Setting the SourceID to 1
    insures that GetLatestVimScripts will assume that the script it has is
    out-of-date.

    The SourceID is extracted by GetLatestVimScripts from the script's page on
    vim.sf.net; whenever it is greater than the one stored in the
    GetLatestVimScripts.dat file, the script will be downloaded
    (see |GetLatestVimScripts_dat|).

    If your script's author has included a special comment line in his/her plugin,
    the plugin itself will be used by GetLatestVimScripts to build your
    <GetLatestVimScripts.dat> file, including any dependencies on other scripts it
    may have.  As an example, consider:

    	" GetLatestVimScripts: 884  1 :AutoInstall: AutoAlign.vim

    This comment line tells getscript.vim to check Vim script #884 and that the
    script is automatically installable.  Getscript will also use this line to
    help build the GetLatestVimScripts.dat file, by including a line such as:

    	884 1 :AutoInstall: AutoAlign.vim

    assuming that such a line isn't already in GetLatestVimScripts.dat file.
    See |glvs-plugins| for more.  Thus, GetLatestVimScripts thus provides a
    comprehensive ability to keep your plugins up-to-date!

    In summary:

      * Optionally tell getscript that it is allowed to build/append a
        GetLatestVimScripts.dat file based upon already installed plugins:
    	let g:GetLatestVimScripts_allowautoinstall=1

      * A line such as
    	" GetLatestVimScripts: 884  1 :AutoInstall: AutoAlign.vim
       in an already-downloaded plugin constitutes the concurrence of the
        plugin author that getscript may do AutoInstall.  Not all plugins
        may be AutoInstall-able, and the plugin's author is best situated
        to know whether or not his/her plugin will AutoInstall properly.

      * A line such as
    	884 1 :AutoInstall: AutoAlign.vim
       in your GetLatestVimScripts.dat file constitutes your permission
        to getscript to do AutoInstall.  AutoInstall requires both your
        and the plugin author's permission.  See |GetLatestVimScripts_dat|.

    						*GetLatestVimScripts_dat*
    As an example of a <GetLatestVimScripts.dat> file:

        ScriptID SourceID Filename

        294 1 :AutoInstall: Align.vim
        120 2 Decho.vim
         40 3 DrawIt.tar.gz
        451 4 EasyAccents.vim
        195 5 engspchk.vim
        642 6 GetLatestVimScripts.vim
        489 7 Manpageview.vim

    Note: the first two lines are required, but essentially act as comments.

    5. GetLatestVimScripts Friendly Plugins	*getscript-plugins* *glvs-plugins*

    		(this section is for plugin authors)

    If a plugin author includes the following comment anywhere in their plugin,
    GetLatestVimScripts will find it and use it to automatically build the user's
    GetLatestVimScripts.dat files:

    	                         src_id
    	                            v
    	" GetLatestVimScripts: ### ### yourscriptname
    	                        ^
    	                    scriptid

    As an author, you should include such a line in to refer to your own script
    plus any additional lines describing any plugin dependencies it may have.
    Same format, of course!

    If your command is auto-installable (see |glvs-autoinstall|), and most scripts
    are, then you may include :AutoInstall: just before "yourscriptname":

    	                         src_id
    	                            v
    	" GetLatestVimScripts: ### ### :AutoInstall: yourscriptname
    	                        ^
    	                    scriptid

    NOTE: The :AutoInstall: feature requires both the plugin author's and
          the user's permission to operate!

    GetLatestVimScripts commands for those scripts are then appended, if not
    already present, to the user's GetLatest/GetLatestVimScripts.dat file.  It is
    a relatively painless way to automate the acquisition of any scripts your
    plugins depend upon.

    Now, as an author, you probably don't want GetLatestVimScripts to download
    your own scripts atop your own copy, thereby overwriting your not-yet-released
    hard work.  GetLatestVimScripts provides a solution for this:  put

    	0 0 yourscriptname

    into your <GetLatestVimScripts.dat> file and GetLatestVimScripts will skip
    examining the "yourscriptname" scripts for those GetLatestVimScripts comment
    lines.  As a result, those lines won't be inadvertently installed into your
    <GetLatestVimScripts.dat> file and subsequently used to download your own
    scripts.  This is especially important to do if you've included the
    :AutoInstall: option.

    Be certain to use the same "yourscriptname" in the "0 0 yourscriptname" line
    as you've used in your GetLatestVimScripts comment!

    6. GetLatestVimScripts AutoInstall			*getscript-autoinstall*
    							*glvs-autoinstall*

    GetLatestVimScripts now supports "AutoInstall".  Not all scripts are
    supportive of auto-install, as they may have special things you need to do to
    install them (please refer to the script's "install" directions).  On the
    other hand, most scripts will be auto-installable.

    To let GetLatestVimScripts do an autoinstall, the data file's comment field
    should begin with (surrounding blanks are ignored):

    	:AutoInstall:

    Both colons are needed, and it should begin the comment (yourscriptname)
    field.

    One may prevent any autoinstalling by putting the following line in your
    <.vimrc>:

    	let g:GetLatestVimScripts_allowautoinstall= 0

    With :AutoInstall: enabled, as it is by default, files which end with

    	---.tar.bz2  : decompressed & untarred in .vim/ directory
    	---.vba.bz2  : decompressed in .vim/ directory, then vimball handles it
    	---.vmb.bz2  : idem
    	---.vim.bz2  : decompressed & moved into .vim/plugin directory
    	---.tar.gz   : decompressed & untarred in .vim/ directory
    	---.vba.gz   : decompressed in .vim/ directory, then vimball handles it
    	---.vmb.gz   : idem
    	---.vim.gz   : decompressed & moved into .vim/plugin directory
    	---.vba      : moved to .vim/ directory, then vimball handles it
    	---.vmb      : idem
    	---.vim      : moved to .vim/plugin directory
    	---.zip      : unzipped in .vim/ directory

    and which merely need to have their components placed by the untar/gunzip or
    move-to-plugin-directory process should be auto-installable.  Vimballs, of
    course, should always be auto-installable.

    When is a script not auto-installable?  Let me give an example:

    	.vim/after/syntax/blockhl.vim

    The <blockhl.vim> script provides block highlighting for C/C++ programs; it is
    available at:

    	https://www.vim.org/scripts/script.php?script_id=104

    Currently, vim's after/syntax only supports by-filetype scripts (in
    blockhl.vim's case, that's after/syntax/c.vim).  Hence, auto-install would
    possibly overwrite the current user's after/syntax/c.vim file.

    In my own case, I use <aftersyntax.vim> (renamed to after/syntax/c.vim) to
    allow a after/syntax/c/ directory:

    	https://www.vim.org/scripts/script.php?script_id=1023

    The script allows multiple syntax files to exist separately in the
    after/syntax/c subdirectory.  I can't bundle aftersyntax.vim in and build an
    appropriate tarball for auto-install because of the potential for the
    after/syntax/c.vim contained in it to overwrite a user's c.vim.

    7. GetLatestVimScripts Options					*glvs-options*

    	g:GetLatestVimScripts_wget
    	default= "wget"
    		This variable holds the name of the command for obtaining
    		scripts.

    	g:GetLatestVimScripts_options
    	default= "-q -O"
    		This variable holds the options to be used with the
    		g:GetLatestVimScripts_wget command.

    	g:GetLatestVimScripts_allowautoinstall
    	default= 1
    		This variable indicates whether GetLatestVimScripts is allowed
    		to attempt to automatically install scripts.  Furthermore, the
    		plugin author has to have explicitly indicated that his/her
    		plugin is automatically installable (via the :AutoInstall:
    		keyword in the GetLatestVimScripts comment line).

    	g:GetLatestVimScripts_autoinstalldir
    	default= $HOME/.vim     (linux)
    	default= $HOME/vimfiles (windows)
    		Override where :AutoInstall: scripts will be installed.
    		Doesn't override vimball installation.

    	g:GetLatestVimScripts_scriptaddr
    	default='https://www.vim.org/scripts/script.php?script_id='

    	g:GetLatestVimScripts_downloadaddr
    	default='https://www.vim.org/scripts/download_script.php?src_id='

    	g:GetLatestVimScripts_bunzip2
    	default= bunzip2
    		This variable holds the name of the command to decompress .bz2
    		files

    	g:GetLatestVimScripts_bunzip3
    	default= bunzip3
    		This variable holds the name of the command to decompress .bz3
    		files

    	g:GetLatestVimScripts_gunzip
    	default= gunzip
    		This variable holds the name of the command to decompress .gz
    		files

    	g:GetLatestVimScripts_unxz
    	default= unxz
    		This variable holds the name of the command to decompress .xz
    		files

    	g:GetLatestVimScripts_unzip
    	default= unzip
    		This variable holds the name of the command to decompress .zip
    		files

    Note: The variables associated with decompression commands help workaround
          crossplatform issues. For example, on Windows is possible to delegate
          this calls into `wsl` by doing:

    	let g:GetLatestVimScripts_bunzip2= "wsl -e bunzip2"
    	let g:GetLatestVimScripts_gunzip= "wsl -e gunzip"
    	let g:GetLatestVimScripts_unxz= "wsl -e unxz"
    	let g:GetLatestVimScripts_unzip= "wsl -e unzip"

    8. GetLatestVimScripts Algorithm		*glvs-algorithm* *glvs-alg*

    The Vim sourceforge page dynamically creates a page by keying off of the
    so-called script-id.  Within the webpage of

    	https://www.vim.org/scripts/script.php?script_id=40

    is a line specifying the latest source-id (src_id).  The source identifier
    numbers are always increasing, hence if the src_id is greater than the one
    recorded for the script in GetLatestVimScripts then it's time to download a
    newer copy of that script.

    GetLatestVimScripts will then download the script and update its internal
    database of script ids, source ids, and scriptnames.

    The AutoInstall process will:

    	Move the file from GetLatest/ to the following directory
    		Unix   : $HOME/.vim
    		Windows: $HOME\vimfiles
    	if the downloaded file ends with ".bz2"
    		bunzip2 it
    	else if the downloaded file ends with ".bz3"
    		bunzip3 it
    	else if the downloaded file ends with ".gz"
    		gunzip it
    	if the resulting file ends with ".zip"
    		unzip it
    	else if the resulting file ends with ".tar"
    		tar -oxvf it
    	else if the resulting file ends with ".vim"
    		move it to the plugin subdirectory

    9. GetLatestVimScripts History		*getscript-history* *glvs-hist* {{{1

    v38 Feb 25, 2025 : * handles additional decompression option for .bzip3 files.
    v37 Sep 23, 2024 : * Support for the new vimball's .vmb extension (old .vba
    		     extension conflicted with visual basic).
    		   * Support for |glvs-autoinstall| in ftplugins and packages.
    		   * Allow platform driven customization of decompressing
    		     commands.
    v36 Apr 22, 2013 : * (glts) suggested use of plugin/**/*.vim instead of
    		     plugin/*.vim in globpath() call.
    		   * (Andy Wokula) got warning message when setting
    		     g:loaded_getscriptPlugin
    v35 Apr 07, 2012 : * (MengHuan Yu) pointed out that the script URL has
    		     changed (somewhat).  However, it doesn't work, and
    		     the original one does (under Linux). I'll make it
    		     yet-another-option.
    v34 Jun 23, 2011 : * handles additional decompression options for tarballs
                         (tgz taz tbz txz)
    v33 May 31, 2011 : * using fnameescape() instead of escape()
    		   * *.xz support
    v32 Jun 19, 2010 : * (Jan Steffens) added support for xz compression
    v31 Jun 29, 2008 : * (Bill McCarthy) fixed having hls enabled with getscript
    		   * (David Schaefer) the acd option interferes with vimballs
    		     Solution: bypass the acd option
    v30 Jun 13, 2008 : * GLVS now checks for existence of fnameescape() and will
    		     issue an error message if it is not supported
    v29 Jan 07, 2008 : * Bram M pointed out that cpo is a global option and that
                         getscriptPlugin.vim was setting it but not restoring it.
    v28 Jan 02, 2008 : * improved shell quoting character handling, cygwin
    		     interface, register-a bypass
        Oct 29, 2007   * Bill McCarthy suggested a change to getscript that avoids
                         creating pop-up windows
    v24 Apr 16, 2007 : * removed save&restore of the fo option during script
                         loading
    v23 Nov 03, 2006 : * ignores comments (#...)
                       * handles vimballs
    v22 Oct 13, 2006 : * supports automatic use of curl if wget is not
                         available
    v21 May 01, 2006 : * now takes advantage of autoloading.
    v20 Dec 23, 2005 : * Eric Haarbauer found&fixed a bug with unzip use;
                         unzip needs the -o flag to overwrite.
    v19 Nov 28, 2005 : * v18's GetLatestVimScript line accessed the wrong
                         script! Fixed.
    v18 Mar 21, 2005 : * bugfix to automatic database construction
                       * bugfix - nowrapscan caused an error
                         (tnx to David Green for the fix)
        Apr 01, 2005   * if shell is bash, "mv" instead of "ren" used in
                         :AutoInstall:s, even though its o/s is windows
        Apr 01, 2005   * when downloading errors occurred, GLVS was
                         terminating early.  It now just goes on to trying
                         the next script (after trying three times to
                         download a script description page)
        Apr 20, 2005   * bugfix - when a failure to download occurred,
                         GetLatestVimScripts would stop early and claim that
                         everything was current.  Fixed.
    v17 Aug 25, 2004 : * g:GetLatestVimScripts_allowautoinstall, which
                         defaults to 1, can be used to prevent all
                         :AutoInstall:
    v16 Aug 25, 2004 : * made execution of bunzip2/gunzip/tar/zip silent
                       * fixed bug with :AutoInstall: use of helptags
    v15 Aug 24, 2004 : * bugfix: the "0 0 comment" download prevention wasn't
                         always preventing downloads (just usually).  Fixed.
    v14 Aug 24, 2004 : * bugfix -- helptags was using dotvim, rather than
                         s:dotvim.  Fixed.
    v13 Aug 23, 2004 : * will skip downloading a file if its scriptid or srcid
                         is zero.  Useful for script authors; that way their
                         own GetLatestVimScripts activity won't overwrite
                         their scripts.
    v12 Aug 23, 2004 : * bugfix - a "return" got left in the distribution that
                         was intended only for testing.  Removed, now works.
                       * :AutoInstall: implemented
    v11 Aug 20, 2004 : * GetLatestVimScripts is now a plugin:
                       * :GetLatestVimScripts command
                       * (runtimepath)/GetLatest/GetLatestVimScripts.dat
                         now holds scripts that need updating
    v10 Apr 19, 2004 : * moved history from script to doc
    v9  Jan 23, 2004 :   windows (win32/win16/win95) will use
                         double quotes ("") whereas other systems will use
                         single quotes ('') around the urls in calls via wget
    v8  Dec 01, 2003 :   makes three tries at downloading
    v7  Sep 02, 2003 :   added error messages if "Click on..." or "src_id="
                         not found in downloaded webpage
                         Uses t_ti, t_te, and rs to make progress visible
    v6  Aug 06, 2003 :   final status messages now display summary of work
                         ( "Downloaded someqty scripts" or
                           "Everything was current")
                         Now GetLatestVimScripts is careful about downloading
                         GetLatestVimScripts.vim itself!
                         (goes to <NEW_GetLatestVimScripts.vim>)
    v5  Aug 04, 2003 :   missing an endif near bottom
    v4  Jun 17, 2003 :   redraw! just before each "considering" message
    v3  May 27, 2003 :   Protects downloaded files from errant shell
                         expansions with single quotes: '...'
    v2  May 14, 2003 :   extracts name of item to be obtained from the
                         script file.  Uses it instead of comment field
                         for output filename; comment is used in the
                         "considering..." line and is now just a comment!
                       * Fixed a bug: a string-of-numbers is not the
                         same as a number, so I added zero to them
                         and they became numbers.  Fixes comparison.

    vim:tw=78:ts=8:noet:ft=help:fdm=marker

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