Add config option 'enable-filter-overrides'

This option must be enabled if repo-specific cgitrc files should be
allowed to override any of the 'filter' options.

Signed-off-by: Lars Hjemli <hjemli@gmail.com>

3 files changed, 26 insertions, 11 deletions

diff --git a/cgit.c b/cgit.c
index 167b5dd..f1ea03c 100644
--- a/cgit.c
+++ b/cgit.c
@@ -61,27 +61,28 @@ void repo_config(struct cgit_repo *repo, const char *name, const char *value)
         else if (!strcmp(name, "enable-log-linecount"))
                 repo->enable_log_linecount = ctx.cfg.enable_log_linecount * atoi(value);
         else if (!strcmp(name, "max-stats"))
                 repo->max_stats = cgit_find_stats_period(value, NULL);
         else if (!strcmp(name, "module-link"))
                 repo->module_link= xstrdup(value);
         else if (!strcmp(name, "section"))
                 repo->section = xstrdup(value);
-        else if (!strcmp(name, "about-filter"))
-                repo->about_filter = new_filter(value, 0);
-        else if (!strcmp(name, "commit-filter"))
-                repo->commit_filter = new_filter(value, 0);
-        else if (!strcmp(name, "source-filter"))
-                repo->source_filter = new_filter(value, 1);
         else if (!strcmp(name, "readme") && value != NULL) {
                 if (*value == '/')
                         ctx.repo->readme = xstrdup(value);
                 else
                         ctx.repo->readme = xstrdup(fmt("%s/%s", ctx.repo->path, value));
+        } else if (ctx.cfg.enable_filter_overrides) {
+                if (!strcmp(name, "about-filter"))
+                        repo->about_filter = new_filter(value, 0);
+                else if (!strcmp(name, "commit-filter"))
+                        repo->commit_filter = new_filter(value, 0);
+                else if (!strcmp(name, "source-filter"))
+                        repo->source_filter = new_filter(value, 1);
         }
 }
 
 void config_cb(const char *name, const char *value)
 {
         if (!strcmp(name, "section") || !strcmp(name, "repo.group"))
                 ctx.cfg.section = xstrdup(value);
         else if (!strcmp(name, "repo.url"))
@@ -123,16 +124,18 @@ void config_cb(const char *name, const char *value)
         } else if (!strcmp(name, "nocache"))
                 ctx.cfg.nocache = atoi(value);
         else if (!strcmp(name, "noplainemail"))
                 ctx.cfg.noplainemail = atoi(value);
         else if (!strcmp(name, "noheader"))
                 ctx.cfg.noheader = atoi(value);
         else if (!strcmp(name, "snapshots"))
                 ctx.cfg.snapshots = cgit_parse_snapshots_mask(value);
+        else if (!strcmp(name, "enable-filter-overrides"))
+                ctx.cfg.enable_filter_overrides = atoi(value);
         else if (!strcmp(name, "enable-index-links"))
                 ctx.cfg.enable_index_links = atoi(value);
         else if (!strcmp(name, "enable-log-filecount"))
                 ctx.cfg.enable_log_filecount = atoi(value);
         else if (!strcmp(name, "enable-log-linecount"))
                 ctx.cfg.enable_log_linecount = atoi(value);
         else if (!strcmp(name, "max-stats"))
                 ctx.cfg.max_stats = cgit_find_stats_period(value, NULL);
diff --git a/cgit.h b/cgit.h
index 3359be9..ef109aa 100644
--- a/cgit.h
+++ b/cgit.h
@@ -169,16 +169,17 @@ struct cgit_config {
         int cache_size;
         int cache_dynamic_ttl;
         int cache_max_create_time;
         int cache_repo_ttl;
         int cache_root_ttl;
         int cache_scanrc_ttl;
         int cache_static_ttl;
         int embedded;
+        int enable_filter_overrides;
         int enable_index_links;
         int enable_log_filecount;
         int enable_log_linecount;
         int local_time;
         int max_repo_count;
         int max_commit_count;
         int max_lock_attempts;
         int max_msg_len;
diff --git a/cgitrc.5.txt b/cgitrc.5.txt
index 46df291..617b7c3 100644
--- a/cgitrc.5.txt
+++ b/cgitrc.5.txt
@@ -83,16 +83,20 @@ css::
         Url which specifies the css document to include in all cgit pages.
         Default value: "/cgit.css".
 
 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
         also: "noheader".
         
+enable-filter-overrides::
+        Flag which, when set to "1", allows all filter settings to be
+        overridden in repository-specific cgitrc files. Default value: none.
+
 enable-index-links::
         Flag which, when set to "1", will make cgit generate extra links for
         each repo in the repository index (specifically, to the "summary",
         "commit" and "tree" pages). Default value: "0".
 
 enable-log-filecount::
         Flag which, when set to "1", will make cgit print the number of
         modified files for each commit on the repository log page. Default
@@ -261,24 +265,26 @@ virtual-root::
         '/cgit/tree/README' as opposed to '?r=cgit&p=tree&path=README'. Default
         value: none.
         NOTE: cgit has recently learned how to use PATH_INFO to achieve the
         same kind of virtual urls, so this option will probably be deprecated.
 
 REPOSITORY SETTINGS
 -------------------
 repo.about-filter::
-        Override the default about-filter. Default value: <about-filter>.
+        Override the default about-filter. Default value: none. See also:
+        "enable-filter-overrides".
 
 repo.clone-url::
         A list of space-separated urls which can be used to clone this repo.
         Default value: none.
 
 repo.commit-filter::
-        Override the default commit-filter. Default value: <commit-filter>.
+        Override the default commit-filter. Default value: none. See also:
+        "enable-filter-overrides".
 
 repo.defbranch::
         The name of the default branch for this repository. If no such branch
         exists in the repository, the first branch name (when sorted) is used
         as default instead. Default value: "master".
 
 repo.desc::
         The value to show as repository description. Default value: none.
@@ -315,30 +321,35 @@ repo.snapshots::
         A mask of allowed snapshot-formats for this repo, restricted by the
         "snapshots" global setting. Default value: <snapshots>.
 
 repo.section::
         Override the current section name for this repository. Default value:
         none.
 
 repo.source-filter::
-        Override the default source-filter. Default value: <source-filter>.
+        Override the default source-filter. Default value: none. See also:
+        "enable-filter-overrides".
 
 repo.url::
         The relative url used to access the repository. This must be the first
         setting specified for each repo. Default value: none.
 
 
 REPOSITORY-SPECIFIC CGITRC FILE
 -------------------------------
 When the option "scan-path" is used to auto-discover git repositories, cgit
 will try to parse the file "cgitrc" within any found repository. Such a
 repo-specific config file may contain any of the repo-specific options
-described above, except "repo.url" and "repo.path". Also, in a repo-specific
-config file, the "repo." prefix is dropped from the config option names.
+described above, except "repo.url" and "repo.path". Additionally, the "filter"
+options are only acknowledged in repo-specific config files when
+"enable-filter-overrides" is set to "1".
+
+Note: the "repo." prefix is dropped from the option names in repo-specific
+config files, e.g. "repo.desc" becomes "desc".
 
 
 EXAMPLE CGITRC FILE
 -------------------
 
 ....
 # Enable caching of up to 1000 output entriess
 cache-size=1000