filter: allow returning exit code from filter

[ps-cgit] / cgitrc.5.txt

diff --git a/cgitrc.5.txt b/cgitrc.5.txt
index 60159f6d0c446eb64a8033baee9569de2d8b9966..170e825b414d4daebf719bb6567f5cc70e447a80 100644 (file)
--- a/cgitrc.5.txt
+++ b/cgitrc.5.txt
@@ -117,6 +117,14 @@ css::
        Url which specifies the css document to include in all cgit pages.
        Default value: "/cgit.css".
 
+email-filter::
+       Specifies a command which will be invoked to format names and email
+       address of committers, authors, and taggers, as represented in various
+       places throughout the cgit interface. This command will receive an
+       email address and an origin page string as its command line arguments,
+       and the text to format on STDIN. It is to write the formatted text back
+       out onto STDOUT. Default value: none. See also: "FILTER API".
+
 embedded::
        Flag which, when set to "1", will make cgit generate a html fragment
        suitable for embedding in other html pages. Default value: none. See
@@ -382,10 +390,10 @@ side-by-side-diffs::
        default. Default value: "0".
 
 snapshots::
-       Text which specifies the default set of snapshot formats generated by
-       cgit. The value is a space-separated list of zero or more of the
-       values "tar", "tar.gz", "tar.bz2", "tar.xz" and "zip". Default value:
-       none.
+       Text which specifies the default set of snapshot formats that cgit
+       generates links for. The value is a space-separated list of zero or
+       more of the values "tar", "tar.gz", "tar.bz2", "tar.xz" and "zip".
+       Default value: none.
 
 source-filter::
        Specifies a command which will be invoked to format plaintext blobs
@@ -457,6 +465,10 @@ repo.defbranch::
 repo.desc::
        The value to show as repository description. Default value: none.
 
+repo.email-filter::
+       Override the default email-filter. Default value: none. See also:
+       "enable-filter-overrides". See also: "FILTER API".
+
 repo.enable-commit-graph::
        A flag which can be used to disable the global setting
        `enable-commit-graph'. Default value: none.
@@ -526,8 +538,9 @@ repo.readme::
        file. Default value: <readme>.
 
 repo.snapshots::
-       A mask of allowed snapshot-formats for this repo, restricted by the
-       "snapshots" global setting. Default value: <snapshots>.
+       A mask of snapshot formats for this repo that cgit generates links for,
+       restricted by the global "snapshots" setting. Default value:
+       <snapshots>.
 
 repo.section::
        Override the current section name for this repository. Default value:
@@ -564,6 +577,36 @@ specification with the relevant string; available values are:
 'exec:'::
        The default "one process per filter" mode.
 
+'lua:'::
+       Executes the script using a built-in Lua interpreter. The script is
+       loaded once per execution of cgit, and may be called multiple times
+       during cgit's lifetime, making it a good choice for repeated filters
+       such as the 'email filter'. It responds to three functions:
+
+       'filter_open(argument1, argument2, argument3, ...)'::
+               This is called upon activation of the filter for a particular
+               set of data.
+       'filter_write(buffer)'::
+               This is called whenever cgit writes data to the webpage.
+       'filter_close()'::
+               This is called when the current filtering operation is
+               completed. It must return an integer value. Usually 0
+               indicates success.
+       
+       Additionally, cgit exposes to the Lua the following built-in functions:
+
+       'html(str)'::
+               Writes 'str' to the webpage.
+       'html_txt(str)'::
+               HTML escapes and writes 'str' to the webpage.
+       'html_attr(str)'::
+               HTML escapes for an attribute and writes "str' to the webpage.
+       'html_url_path(str)'::
+               URL escapes for a path and writes 'str' to the webpage.
+       'html_url_arg(str)'::
+               URL escapes for an argument and writes 'str' to the webpage.
+
+
 Parameters are provided to filters as follows.
 
 about filter::
@@ -578,6 +621,13 @@ commit filter::
        be filtered is available on standard input and the filtered text is
        expected on standard output.
 
+email filter::
+       This filter is given two parameters: the email address of the relevent
+       author and a string indicating the originating page. The filter will
+       then receive the text string to format on standard input and is
+       expected to write to standard output the formatted text to be included
+       in the page.
+
 source filter::
        This filter is given a single parameter: the filename of the source
        file to filter. The filter can use the filename to determine (for