[Templates-cvs] cvs commit: Template2/docsrc/src/Tools ttree.tt2
cvs@template-toolkit.org
cvs@template-toolkit.org
Thu, 09 Oct 2003 15:00:03 +0100
cvs 03/10/09 14:00:02
Modified: docsrc/src/Tools ttree.tt2
Log:
* updated ttree docs
Revision Changes Path
1.8 +206 -95 Template2/docsrc/src/Tools/ttree.tt2
Index: ttree.tt2
===================================================================
RCS file: /template-toolkit/Template2/docsrc/src/Tools/ttree.tt2,v
retrieving revision 1.7
retrieving revision 1.8
diff -u -r1.7 -r1.8
--- ttree.tt2 2003/10/09 09:17:09 1.7
+++ ttree.tt2 2003/10/09 14:00:02 1.8
@@ -16,56 +16,182 @@
script first reads the F<.ttreerc> configuration file in the HOME
directory, or an alternative file specified in the TTREERC environment
variable. Then, it processes any command line arguments, including
-any additional configuration files specified via the B<-f> (file) option.
+any additional configuration files specified via the C<-f> (file)
+option.
-A typical F<.ttreerc> file might look like this:
+=head2 The F<.ttreerc> Configuration File
- src = /home/abw/websrc/doc
- dest = /home/abw/public_html
- lib = /home/abw/websrc/lib
- lib = /usr/local/templates/lib
- cfg = /home/abw/.ttree
+When you run F<ttree> for the first time it will ask you if you want
+it to create a F<.ttreerc> file for you. This will be created in your
+home directory.
+
+ $ ttree
+ Do you want me to create a sample '.ttreerc' file for you?
+ (file: /home/abw/.ttreerc) [y/n]: y
+ /home/abw/.ttreerc created. Please edit accordingly and re-run ttree
+
+The purpose of this file is to set any I<global> configuration options
+that you want applied I<every> time F<ttree> is run. For example, you
+can use the C<ignore> and C<copy> option to provide regular expressions
+that specify which files should be ignored and which should be copied
+rather than being processed as templates. You may also want to set
+flags like C<verbose> and C<recurse> according to your preference.
+
+A minimal F<.ttreerc>:
+
+ # ignore these files
ignore = \b(CVS|RCS)\b
ignore = ^#
- copy = \.(gif|png)$
- accept = \.[ah]tml$
+ ignore = ~$
+
+ # copy these files
+ copy = \.(gif|png|jpg|pdf)$
+
+ # recurse into directories
+ recurse
+
+ # provide info about what's going on
+ verbose
+
+In most cases, you'll want to create a different F<ttree> configuration
+file for each project you're working on. The C<cfg> option allows you
+to specify a directory where F<ttree> can find further configuration
+files.
+
+ cfg = /home/abw/.ttree
+
+The C<-f> command line option can be used to specify which configuration
+file should be used. You can specify a filename using an absolute or
+relative path:
+
+ $ ttree -f /home/abw/web/example/etc/ttree.cfg
+ $ ttree -f ./etc/ttree.cfg
+ $ ttree -f ../etc/ttree.cfg
+
+If the configuration file does not begin with C</> or C<.> or something
+that looks like a MS-DOS absolute path (e.g. C<C:\\etc\\ttree.cfg>) then
+F<ttree> will look for it in the directory specified by the C<cfg> option.
+
+ $ ttree -f test1 # /home/abw/.ttree/test1
+
+The C<cfg> option can only be used in the F<.ttreerc> file. All the
+other options can be used in the F<.ttreerc> or any other F<ttree>
+configuration file. They can all also be specified as command line
+options.
+
+Remember that F<.ttreerc> is always processed I<before> any
+configuration file specified with the C<-f> option. Certain options
+like C<lib> can be used any number of times and accumulate their values.
+
+For example, consider the following configuration files:
+
+F</home/abw/.ttreerc>:
+
+ cfg = /home/abw/.ttree
+ lib = /usr/local/tt2/templates
+
+F</home/abw/.ttree/myconfig>:
+
+ lib = /home/abw/web/example/templates/lib
+
+When F<ttree> is invoked as follows:
+
+ $ ttree -f myconfig
+
+the C<lib> option will be set to the following directories:
+
+ /usr/local/tt2/templates
+ /home/abw/web/example/templates/lib
+
+Any templates located under F</usr/local/tt2/templates> will be used
+in preference to those located under
+F</home/abw/web/example/templates/lib>. This may be what you want,
+but then again, it might not. For this reason, it is good practice to
+keep the F<.ttreerc> as simple as possible and use different
+configuration files for each F<ttree> project.
+
+=head2 Directory Options
+
+The C<src> option is used to define the directory containing the
+source templates to be processed. It can be provided as a command
+line option or in a configuration file as shown here:
+
+ src = /home/abw/web/example/templates/src
+
+Each template in this directory typically corresponds to a single
+web page or other document.
+
+The C<dest> option is used to specify the destination directory for the
+generated output.
+
+ dest = /home/abw/web/example/html
+
+The C<lib> option is used to define one or more directories containing
+additional library templates. These templates are not documents in
+their own right and typically comprise of smaller, modular components
+like headers, footers and menus that are incorporated into pages templates.
-The B<src> option indicates a directory containing the template files
-to be processed. A list of files may be specified on the command line
-and each will be processed in turn, writing the generated output to a
-corresponding file in the B<dest> directory. If no files are
-explicitly named then all files in the B<src> directory will be
-processed. The B<-r> (recurse) option will also cause sub-directories
-to be searched for files. A source file is only processed if it
-or a file it depends on has a later modification time than any
-corresponding destination file. Consult L<ttree/"FILE DEPENDANCIES">
-for further information on dependencies.
-
-Files will always be processed, regardless of modification times, if
-they are named explicitly on the command line, or the B<-a> (all)
-option is used.
-
-The B<lib> option may be specified any number of times to indicate
-directories in which the Template Toolkit should look for other
-template files (INCLUDE_PATH) that it may need to INCLUDE or PROCESS,
-but don't represent complete documents that should be processed in
-their own right (e.g. headers, footers, menu). The B<cfg> directory
-specifies the location of additional configuration files that may be
-loaded via the B<-f> option.
+ lib = /home/abw/web/example/templates/lib
+ lib = /usr/local/tt2/templates
-The B<ignore>, B<copy> and B<accept> options are used to specify Perl
-regexen to filter file names. Files that match any of the B<ignore>
+The C<lib> option can be used repeatedly to add further directories to
+the search path.
+
+A list of templates can be passed to F<ttree> as command line arguments.
+
+ $ ttree foo.html bar.html
+
+It looks for these templates in the C<src> directory and processes them
+through the Template Toolkit, using any additional template components
+from the C<lib> directories. The generated output is then written to
+the corresponding file in the C<dest> directory.
+
+If F<ttree> is invoked without explicitly specifying any templates
+to be processed then it will process every file in the C<src> directory.
+If the C<-r> (recurse) option is set then it will additionally iterate
+down through sub-directories and process and other template files it finds
+therein.
+
+ $ ttree -r
+
+If a template has been processed previously, F<ttree> will compare the
+modification times of the source and destination files. If the source
+template (or one it is dependant on) has not been modified more
+recently than the generated output file then F<ttree> will not process
+it. The F<-a> (all) option can be used to force F<ttree> to process
+all files regardless of modification time.
+
+ $ tree -a
+
+Any templates explicitly named as command line argument are always
+processed and the modification time checking is bypassed.
+
+=head2 File Options
+
+The C<ignore>, C<copy> and C<accept> options are used to specify Perl
+regexen to filter file names. Files that match any of the C<ignore>
options will not be processed. Remaining files that match any of the
-B<copy> regexen will be copied to the destination directory. Remaining
-files that then match any of the B<accept> criteria are then processed
-via the Template Toolkit. If no B<accept> parameter is specified then
+C<copy> regexen will be copied to the destination directory. Remaining
+files that then match any of the C<accept> criteria are then processed
+via the Template Toolkit. If no C<accept> parameter is specified then
all files will be accepted for processing if not already copied or
- ignored.
+ignored.
+
+ # ignore these files
+ ignore = \b(CVS|RCS)\b
+ ignore = ^#
+ ignore = ~$
+
+ # copy these files
+ copy = \.(gif|png|jpg|pdf)$
+
+ # accept only .tt2 templates
+ accept = \.tt2$
-The B<suffix> option can be used to define which file extensions should
-be mapped to other file extensions. For example, if you want your source
-templates with a C<.tt2> suffix to be output as C<.html> files, then
-you would specify:
+The C<suffix> option is used to define mappings between the file
+extensions for source templates and the generated output files. The
+following example specifies that source templates with a C<.tt2>
+suffix should be output as C<.html> files:
suffix tt2=html
@@ -76,38 +202,22 @@
You can provide any number of different suffix mappings by repeating
this option.
-Additional options may be used to set Template Toolkit parameters.
-For example:
+=head2 Template Dependencies
- interpolate
- post_chomp
- pre_process = header
- post_process = footer
- perl5lib = /home/abw/lib/perl5
-
-See B<ttree --help> for a summary of options.
-
-=head1 FILE DEPENDENCIES
-
-The B<depend> and B<depend_file> parameters lets one specify
-how any given file depends on another file or group of files.
-B<depend> lets one express the dependency on the command
-line or in the config file, while B<depend_file>
-lets one use a separate file for the dependancy information.
+The C<depend> and C<depend_file> options allow you to specify
+how any given template file depends on another file or group of files.
+The C<depend> option is used to express a single dependency.
-=head2 Usage of B<depend>
+ $ ttree --depend foo=bar,baz
- $ ttree --depend foo=bar,baz --depend crash=bang,wallop
+This command line example shows the C<--depend> option being used to
+specify that the F<foo> file is dependant on the F<bar> and F<baz>
+templates. This option can be used many time on the command line:
-This command line example shows the C<--depend> option being
-used to specify that the F<foo> file is dependant on the F<bar>
-and F<baz> files, and that F<crash> is dependant on F<bang>
-and F<wallop>.
+ $ ttree --depend foo=bar,baz --depend crash=bang,wallop
-In a ttree configuration file those options would be specified as
-follows:
+or in a configuration file:
- # .ttreerc
depend foo=bar,baz
depend crash=bang,wallop
@@ -125,55 +235,56 @@
$ ttree --depend *=header,footer
+or in a configuration file:
+
+ depend *=header,footer
+
Any templates that are defined in the C<pre_process>, C<post_process>,
C<process> or C<wrapper> options will automatically be added to the
list of global dependencies that apply to all templates.
-=head2 Format of B<depend_file>
-
The C<depend_file> option can be used to specify a file that contains
-dependency information. The format of this file is as follows.
-
-Comments are started with '#', only optional whitespace may precede
-it. Comments are ended with a newline char. Lines may be continued
-with the backslash ('\'). Blank lines are ignored. All other lines
-are expected to be in the following format:
-
- file: file1 file2
+dependency information.
-Files that contain spaces can be quoted. That is only necessary for
-files after the colon (':'). The file before the colon may be quoted
-if it contains a colon. Any leading space will be stripped regardless.
-This quoting mechanism is implemented by
-L<Text::ParseWords|Text::ParseWords>.
+ $ ttree --depend_file=/home/abw/web/example/etc/ttree.dep
-The following shows the syntax for the dependfile files:
+Here is an example of a dependency file:
- # Example dependfile file.
# This is a comment. It is ignored.
-
+
index.html: header footer menubar
-
+
header: titlebar hotlinks
-
+
menubar: menuitem
-
+
# spanning multiple lines with the backslash
another.html: header footer menubar \
sidebar searchform
-In this example, F<index.html> depends on F<header>, F<footer>
-and F<menubar>. The F<header> in turn depends on F<titlebar> and
-F<hotlinks>, while F<menubar> depends on F<menuitem>.
-
-The F<index.html> template will only be processed if it or any of its
-dependant files has a modification time greater than the current
-F<index.html> output file.
+Lines beginning with the C<#> character are comments and are ignored.
+Blank lines are also ignored. All other lines should provide a
+filename followed by a colon and then a list of dependant files
+separated by whitespace, commas or both. Whitespace around the colon
+is also optional. Lines ending in the C<\> character are continued
+onto the following line.
+
+Files that contain spaces can be quoted. That is only necessary
+for files after the colon (':'). The file before the colon may be
+quoted if it contains a colon.
As with the command line options, the C<*> character can be used
as a wildcard to specify a dependency for all templates.
* : config,header
+
+=head2 Template Toolkit Options
+
+F<ttree> also provides access to the usual range of Template Toolkit
+options. For example, the C<--pre_chomp> and C<--post_chomp> F<ttree>
+options correspond to the C<PRE_CHOMP> and C<POST_CHOMP> options.
+
+Run C<ttree -h> for a summary of the options available.
=head1 AUTHORS