1Template::Tools::ttree(U3s)er Contributed Perl DocumentatTieomnplate::Tools::ttree(3)
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6 Template::Tools::ttree - Process entire directory trees of templates
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9 ttree [options] [files]
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12 The ttree script is used to process entire directory trees containing
13 template files. The resulting output from processing each file is then
14 written to a corresponding file in a destination directory. The script
15 compares the modification times of source and destination files (where
16 they already exist) and processes only those files that have been
17 modified. In other words, it is the equivalent of 'make' for the
18 Template Toolkit.
19 It supports a number of options which can be used to configure
21 behaviour, define locations and set Template Toolkit options. The
22 script first reads the .ttreerc configuration file in the HOME
23 directory, or an alternative file specified in the TTREERC environment
24 variable. Then, it processes any command line arguments, including any
25 additional configuration files specified via the "-f" (file) option.
26 The .ttreerc Configuration File
28 When you run ttree for the first time it will ask you if you want it to
29 create a .ttreerc file for you. This will be created in your home
30 directory.
31 $ ttree
33 Do you want me to create a sample '.ttreerc' file for you?
34 (file: /home/abw/.ttreerc) [y/n]: y
35 /home/abw/.ttreerc created. Please edit accordingly and re-run ttree
36 The purpose of this file is to set any global configuration options
38 that you want applied every time ttree is run. For example, you can
39 use the "ignore" and "copy" option to provide regular expressions that
40 specify which files should be ignored and which should be copied rather
41 than being processed as templates. You may also want to set flags like
42 "verbose" and "recurse" according to your preference.
43 A minimal .ttreerc:
45 # ignore these files
47 ignore = \b(CVS|RCS)\b
48 ignore = ^#
49 ignore = ~$
50 # copy these files
52 copy = \.(gif|png|jpg|pdf)$
53 # recurse into directories
55 recurse
56 # provide info about what's going on
58 verbose
59 In most cases, you'll want to create a different ttree configuration
61 file for each project you're working on. The "cfg" option allows you
62 to specify a directory where ttree can find further configuration
63 files.
64 cfg = /home/abw/.ttree
66 The "-f" command line option can be used to specify which configuration
68 file should be used. You can specify a filename using an absolute or
69 relative path:
70 $ ttree -f /home/abw/web/example/etc/ttree.cfg
72 $ ttree -f ./etc/ttree.cfg
73 $ ttree -f ../etc/ttree.cfg
74 If the configuration file does not begin with "/" or "." or something
76 that looks like a MS-DOS absolute path (e.g. "C:\\etc\\ttree.cfg") then
77 ttree will look for it in the directory specified by the "cfg" option.
78 $ ttree -f test1 # /home/abw/.ttree/test1
80 The "cfg" option can only be used in the .ttreerc file. All the other
82 options can be used in the .ttreerc or any other ttree configuration
83 file. They can all also be specified as command line options.
84 Remember that .ttreerc is always processed before any configuration
86 file specified with the "-f" option. Certain options like "lib" can be
87 used any number of times and accumulate their values.
88 For example, consider the following configuration files:
90 /home/abw/.ttreerc:
92 cfg = /home/abw/.ttree
94 lib = /usr/local/tt2/templates
95 /home/abw/.ttree/myconfig:
97 lib = /home/abw/web/example/templates/lib
99 When ttree is invoked as follows:
101 $ ttree -f myconfig
103 the "lib" option will be set to the following directories:
105 /usr/local/tt2/templates
107 /home/abw/web/example/templates/lib
108 Any templates located under /usr/local/tt2/templates will be used in
110 preference to those located under /home/abw/web/example/templates/lib.
111 This may be what you want, but then again, it might not. For this
112 reason, it is good practice to keep the .ttreerc as simple as possible
113 and use different configuration files for each ttree project.
114 Directory Options
116 The "src" option is used to define the directory containing the source
117 templates to be processed. It can be provided as a command line option
118 or in a configuration file as shown here:
119 src = /home/abw/web/example/templates/src
121 Each template in this directory typically corresponds to a single web
123 page or other document.
124 The "dest" option is used to specify the destination directory for the
126 generated output.
127 dest = /home/abw/web/example/html
129 The "lib" option is used to define one or more directories containing
131 additional library templates. These templates are not documents in
132 their own right and typically comprise of smaller, modular components
133 like headers, footers and menus that are incorporated into pages
134 templates.
135 lib = /home/abw/web/example/templates/lib
137 lib = /usr/local/tt2/templates
138 The "lib" option can be used repeatedly to add further directories to
140 the search path.
141 A list of templates can be passed to ttree as command line arguments.
143 $ ttree foo.html bar.html
145 It looks for these templates in the "src" directory and processes them
147 through the Template Toolkit, using any additional template components
148 from the "lib" directories. The generated output is then written to
149 the corresponding file in the "dest" directory.
150 If ttree is invoked without explicitly specifying any templates to be
152 processed then it will process every file in the "src" directory. If
153 the "-r" (recurse) option is set then it will additionally iterate down
154 through sub-directories and process and other template files it finds
155 therein.
156 $ ttree -r
158 If a template has been processed previously, ttree will compare the
160 modification times of the source and destination files. If the source
161 template (or one it is dependant on) has not been modified more
162 recently than the generated output file then ttree will not process it.
163 The -a (all) option can be used to force ttree to process all files
164 regardless of modification time.
165 $ ttree -a
167 Any templates explicitly named as command line argument are always
169 processed and the modification time checking is bypassed.
170 File Options
172 The "ignore", "copy" and "accept" options are used to specify Perl
173 regexen to filter file names. Files that match any of the "ignore"
174 options will not be processed. Remaining files that match any of the
175 "copy" regexen will be copied to the destination directory. Remaining
176 files that then match any of the "accept" criteria are then processed
177 via the Template Toolkit. If no "accept" parameter is specified then
178 all files will be accepted for processing if not already copied or
179 ignored.
180 # ignore these files
182 ignore = \b(CVS|RCS)\b
183 ignore = ^#
184 ignore = ~$
185 # copy these files
187 copy = \.(gif|png|jpg|pdf)$
188 # accept only .tt2 templates
190 accept = \.tt2$
191 The "suffix" option is used to define mappings between the file
193 extensions for source templates and the generated output files. The
194 following example specifies that source templates with a ".tt2" suffix
195 should be output as ".html" files:
196 suffix tt2=html
198 Or on the command line,
200 --suffix tt2=html
202 You can provide any number of different suffix mappings by repeating
204 this option.
205 Template Dependencies
207 The "depend" and "depend_file" options allow you to specify how any
208 given template file depends on another file or group of files. The
209 "depend" option is used to express a single dependency.
210 $ ttree --depend foo=bar,baz
212 This command line example shows the "--depend" option being used to
214 specify that the foo file is dependant on the bar and baz templates.
215 This option can be used many time on the command line:
216 $ ttree --depend foo=bar,baz --depend crash=bang,wallop
218 or in a configuration file:
220 depend foo=bar,baz
222 depend crash=bang,wallop
223 The file appearing on the left of the "=" is specified relative to the
225 "src" or "lib" directories. The file(s) appearing on the right can be
226 specified relative to any of these directories or as absolute file
227 paths.
228 For example:
230 $ ttree --depend foo=bar,/tmp/baz
232 To define a dependency that applies to all files, use "*" on the left
234 of the "=".
235 $ ttree --depend *=header,footer
237 or in a configuration file:
239 depend *=header,footer
241 Any templates that are defined in the "pre_process", "post_process",
243 "process" or "wrapper" options will automatically be added to the list
244 of global dependencies that apply to all templates.
245 The "depend_file" option can be used to specify a file that contains
247 dependency information.
248 $ ttree --depend_file=/home/abw/web/example/etc/ttree.dep
250 Here is an example of a dependency file:
252 # This is a comment. It is ignored.
254 index.html: header footer menubar
256 header: titlebar hotlinks
258 menubar: menuitem
260 # spanning multiple lines with the backslash
262 another.html: header footer menubar \
263 sidebar searchform
264 Lines beginning with the "#" character are comments and are ignored.
266 Blank lines are also ignored. All other lines should provide a
267 filename followed by a colon and then a list of dependant files
268 separated by whitespace, commas or both. Whitespace around the colon
269 is also optional. Lines ending in the "\" character are continued onto
270 the following line.
271 Files that contain spaces can be quoted. That is only necessary for
273 files after the colon (':'). The file before the colon may be quoted if
274 it contains a colon.
275 As with the command line options, the "*" character can be used as a
277 wildcard to specify a dependency for all templates.
278 * : config,header
280 Template Toolkit Options
282 ttree also provides access to the usual range of Template Toolkit
283 options. For example, the "--pre_chomp" and "--post_chomp" ttree
284 options correspond to the "PRE_CHOMP" and "POST_CHOMP" options.
285 Run "ttree -h" for a summary of the options available.
287
289 Andy Wardley <abw@wardley.org>
290 <http://www.wardley.org>
292 With contributions from Dylan William Hardison (support for
294 dependencies), Bryce Harrington ("absolute" and "relative" options),
295 Mark Anderson ("suffix" and "debug" options), Harald Joerg and Leon
296 Brocard who gets everywhere, it seems.
297
299 Copyright (C) 1996-2007 Andy Wardley. All Rights Reserved.
300 This module is free software; you can redistribute it and/or modify it
302 under the same terms as Perl itself.
303
305 Template::Tools::tpage
306perl v5.36.0 2023-01-20 Template::Tools::ttree(3)