From: John Keeping <j...@keeping.me.uk>
This allows different filter implementations to be specified in the
configuration file. Currently only "exec" is supported, but it may now
be specified either with or without the "exec:" prefix.
Signed-off-by: John Keeping <j...@keeping.me.uk>
---
cgitrc.5.txt | 9 +++++++++
filter.c | 33 +++++++++++++++++++++++++++++++--
2 files changed, 40 insertions(+), 2 deletions(-)
diff --git a/cgitrc.5.txt b/cgitrc.5.txt
index 52caed0..60159f6 100644
--- a/cgitrc.5.txt
+++ b/cgitrc.5.txt
@@ -557,6 +557,15 @@ config files, e.g. "repo.desc" becomes "desc".
FILTER API
----------
+By default, filters are separate processes that are executed each time they
+are needed. Alternative technologies may be used by prefixing the filter
+specification with the relevant string; available values are:
+
+'exec:'::
+ The default "one process per filter" mode.
+
+Parameters are provided to filters as follows.
+
about 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
diff --git a/filter.c b/filter.c
index 0f3edb0..ba66e46 100644
--- a/filter.c
+++ b/filter.c
@@ -64,7 +64,7 @@ done:
static void fprintf_exec_filter(struct cgit_filter *base, FILE *f, const char
*prefix)
{
struct cgit_exec_filter *filter = (struct cgit_exec_filter *) base;
- fprintf(f, "%s%s\n", prefix, filter->cmd);
+ fprintf(f, "%sexec:%s\n", prefix, filter->cmd);
}
int cgit_open_filter(struct cgit_filter *filter, ...)
@@ -125,10 +125,39 @@ static struct cgit_filter *new_exec_filter(const char
*cmd, filter_type filterty
return &f->base;
}
+static const struct {
+ const char *prefix;
+ struct cgit_filter *(*ctor)(const char *cmd, filter_type filtertype);
+} filter_specs[] = {
+ { "exec", new_exec_filter },
+};
+
struct cgit_filter *cgit_new_filter(const char *cmd, filter_type filtertype)
{
+ char *colon;
+ int i;
+ size_t len;
if (!cmd || !cmd[0])
return NULL;
- return new_exec_filter(cmd, filtertype);
+ colon = strchr(cmd, ':');
+ len = colon - cmd;
+ /*
+ * In case we're running on Windows, don't allow a single letter before
+ * the colon.
+ */
+ if (len == 1)
+ colon = NULL;
+
+ /* If no prefix is given, exec filter is the default. */
+ if (!colon)
+ return new_exec_filter(cmd, filtertype);
+
+ for (i = 0; i < ARRAY_SIZE(filter_specs); i++) {
+ if (len == strlen(filter_specs[i].prefix) &&
+ !strncmp(filter_specs[i].prefix, cmd, len))
+ return filter_specs[i].ctor(colon + 1, filtertype);
+ }
+
+ die("Invalid filter type: %.*s", (int) len, cmd);
}
--
1.8.5.2
_______________________________________________
CGit mailing list
CGit@lists.zx2c4.com
http://lists.zx2c4.com/mailman/listinfo/cgit
