Add knobs to enable/disable files/lines changed in log view

These columns can cause lots of IO on the server, so add settings to
explicitly enable them. Also, add per repo settings to optionally disable
the columns if sitewide enabled.

While at it, do not allow repo.snapshot to enable snapshots if the global
setting is disabled.

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

4 files changed, 48 insertions, 13 deletions

diff --git a/cgit.h b/cgit.h
index 290401f..ed100a7 100644
--- a/cgit.h
+++ b/cgit.h
@@ -33,16 +33,18 @@ struct repoinfo {
         char *url;
         char *name;
         char *path;
         char *desc;
         char *owner;
         char *defbranch;
         char *module_link;
         int snapshots;
+        int enable_log_filecount;
+        int enable_log_linecount;
 };
 
 struct repolist {
         int length;
         int count;
         struct repoinfo *repos;
 };
 
@@ -76,16 +78,18 @@ extern char *cgit_logo;
 extern char *cgit_logo_link;
 extern char *cgit_module_link;
 extern char *cgit_virtual_root;
 extern char *cgit_script_name;
 extern char *cgit_cache_root;
 
 extern int cgit_nocache;
 extern int cgit_snapshots;
+extern int cgit_enable_log_filecount;
+extern int cgit_enable_log_linecount;
 extern int cgit_max_lock_attempts;
 extern int cgit_cache_root_ttl;
 extern int cgit_cache_repo_ttl;
 extern int cgit_cache_dynamic_ttl;
 extern int cgit_cache_static_ttl;
 extern int cgit_cache_max_create_time;
 
 extern int cgit_max_msg_len;
diff --git a/cgitrc b/cgitrc
index f923cc4..eaa9ce3 100644
--- a/cgitrc
+++ b/cgitrc
@@ -7,16 +7,24 @@
 ## usefull for testing.
 #nocache=0
 
 
 ## Enable/disable snapshots by default. This can be overridden per repo
 #snapshots=0
 
 
+## Enable/disable display of 'number of files changed' in log view
+#enable-log-filecount=0
+
+
+## Enable/disable display of 'number of lines changed' in log view
+#enable-log-linecount=0
+
+
 ## Specify a root for virtual urls. This makes cgit generate urls like
 ##
 ##    http://localhost/git/repo/log/?id=master
 ##
 ## instead of
 ##
 ##    http://localhost/cgit/cgit.cgi?r=repo&p=log&id=master
 ##
@@ -92,9 +100,11 @@
 ## Example repository entry. Required values are repo.url and repo.path (each
 ## repository section must start with repo.url).
 #repo.url=cgit
 #repo.name=cgit
 #repo.desc=the caching cgi for git
 #repo.path=/pub/git/cgit
 #repo.owner=Lars Hjemli
         #repo.snapshots=1                       # override a sitewide snapshot-setting
+        #repo.enable-log-filecount=0            # override the default filecount setting
+        #repo.enable-log-linecount=0            # override the default linecount setting
         #repo.module-link=/git/%s/commit/?id=%s         # override the standard module-link
diff --git a/shared.c b/shared.c
index 752ceac..53cd9b0 100644
--- a/shared.c
+++ b/shared.c
@@ -17,16 +17,18 @@ char *cgit_logo         = "/git-logo.png";
 char *cgit_logo_link    = "http://www.kernel.org/pub/software/scm/git/docs/";
 char *cgit_module_link  = "./?repo=%s&page=commit&id=%s";
 char *cgit_virtual_root = NULL;
 char *cgit_script_name  = CGIT_SCRIPT_NAME;
 char *cgit_cache_root   = "/var/cache/cgit";
 
 int cgit_nocache               =  0;
 int cgit_snapshots             =  0;
+int cgit_enable_log_filecount  =  0;
+int cgit_enable_log_linecount  =  0;
 int cgit_max_lock_attempts     =  5;
 int cgit_cache_root_ttl        =  5;
 int cgit_cache_repo_ttl        =  5;
 int cgit_cache_dynamic_ttl     =  5;
 int cgit_cache_static_ttl      = -1;
 int cgit_cache_max_create_time =  5;
 
 int cgit_max_msg_len = 60;
@@ -80,16 +82,18 @@ struct repoinfo *add_repo(const char *url)
         ret = &cgit_repolist.repos[cgit_repolist.count-1];
         ret->url = xstrdup(url);
         ret->name = ret->url;
         ret->path = NULL;
         ret->desc = NULL;
         ret->owner = NULL;
         ret->defbranch = "master";
         ret->snapshots = cgit_snapshots;
+        ret->enable_log_filecount = cgit_enable_log_filecount;
+        ret->enable_log_linecount = cgit_enable_log_linecount;
         ret->module_link = cgit_module_link;
         return ret;
 }
 
 void cgit_global_config_cb(const char *name, const char *value)
 {
         if (!strcmp(name, "root-title"))
                 cgit_root_title = xstrdup(value);
@@ -102,16 +106,20 @@ void cgit_global_config_cb(const char *name, const char *value)
         else if (!strcmp(name, "module-link"))
                 cgit_module_link = xstrdup(value);
         else if (!strcmp(name, "virtual-root"))
                 cgit_virtual_root = xstrdup(value);
         else if (!strcmp(name, "nocache"))
                 cgit_nocache = atoi(value);
         else if (!strcmp(name, "snapshots"))
                 cgit_snapshots = atoi(value);
+        else if (!strcmp(name, "enable-log-filecount"))
+                cgit_enable_log_filecount = atoi(value);
+        else if (!strcmp(name, "enable-log-linecount"))
+                cgit_enable_log_linecount = atoi(value);
         else if (!strcmp(name, "cache-root"))
                 cgit_cache_root = xstrdup(value);
         else if (!strcmp(name, "cache-root-ttl"))
                 cgit_cache_root_ttl = atoi(value);
         else if (!strcmp(name, "cache-repo-ttl"))
                 cgit_cache_repo_ttl = atoi(value);
         else if (!strcmp(name, "cache-static-ttl"))
                 cgit_cache_static_ttl = atoi(value);
@@ -131,17 +139,21 @@ void cgit_global_config_cb(const char *name, const char *value)
                 cgit_repo->path = xstrdup(value);
         else if (cgit_repo && !strcmp(name, "repo.desc"))
                 cgit_repo->desc = xstrdup(value);
         else if (cgit_repo && !strcmp(name, "repo.owner"))
                 cgit_repo->owner = xstrdup(value);
         else if (cgit_repo && !strcmp(name, "repo.defbranch"))
                 cgit_repo->defbranch = xstrdup(value);
         else if (cgit_repo && !strcmp(name, "repo.snapshots"))
-                cgit_repo->snapshots = atoi(value);
+                cgit_repo->snapshots = cgit_snapshots * atoi(value);
+        else if (cgit_repo && !strcmp(name, "repo.enable-log-filecount"))
+                cgit_repo->enable_log_filecount = cgit_enable_log_filecount * atoi(value);
+        else if (cgit_repo && !strcmp(name, "repo.enable-log-linecount"))
+                cgit_repo->enable_log_linecount = cgit_enable_log_linecount * atoi(value);
         else if (cgit_repo && !strcmp(name, "repo.module-link"))
                 cgit_repo->module_link= xstrdup(value);
         else if (!strcmp(name, "include"))
                 cgit_read_config(value, cgit_global_config_cb);
 }
 
 void cgit_querystring_cb(const char *name, const char *value)
 {
diff --git a/ui-log.c b/ui-log.c
index 9d0ec02..4237921 100644
--- a/ui-log.c
+++ b/ui-log.c
@@ -14,17 +14,18 @@ void count_lines(char *line, int size)
 {
         if (size>0 && (line[0] == '+' || line[0] == '-'))
                 lines++;
 }
 
 void inspect_files(struct diff_filepair *pair)
 {
         files++;
-        cgit_diff_files(pair->one->sha1, pair->two->sha1, count_lines);
+        if (cgit_repo->enable_log_linecount)
+                cgit_diff_files(pair->one->sha1, pair->two->sha1, count_lines);
 }
 
 void print_commit(struct commit *commit)
 {
         char buf[32];
         struct commitinfo *info;
         struct tm *time;
 
@@ -34,23 +35,27 @@ void print_commit(struct commit *commit)
         strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M", time);
         html_txt(buf);
         html("</td><td>");
         char *qry = fmt("h=%s", sha1_to_hex(commit->object.sha1));
         char *url = cgit_pageurl(cgit_query_repo, "commit", qry);
         html_link_open(url, NULL, NULL);
         html_ntxt(cgit_max_msg_len, info->subject);
         html_link_close();
-        files = 0;
-        lines = 0;
-        cgit_diff_commit(commit, inspect_files);
-        html("</td><td class='right'>");
-        htmlf("%d", files);
-        html("</td><td class='right'>");
-        htmlf("%d", lines);
+        if (cgit_repo->enable_log_filecount) {
+                files = 0;
+                lines = 0;
+                cgit_diff_commit(commit, inspect_files);
+                html("</td><td class='right'>");
+                htmlf("%d", files);
+                if (cgit_repo->enable_log_linecount) {
+                        html("</td><td class='right'>");
+                        htmlf("%d", lines);
+                }
+        }
         html("</td><td>");
         html_txt(info->author);
         html("</td></tr>\n");
         cgit_free_commitinfo(info);
 }
 
 
 void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *path)
@@ -76,20 +81,24 @@ void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *path)
         if (rev.grep_filter) {
                 rev.grep_filter->regflags |= REG_ICASE;
                 compile_grep_patterns(rev.grep_filter);
         }
         prepare_revision_walk(&rev);
 
         html("<table class='list nowrap'>");
         html("<tr class='nohover'><th class='left'>Date</th>"
-             "<th class='left'>Message</th>"
-             "<th class='left'>Files</th>"
-             "<th class='left'>Lines</th>"
-             "<th class='left'>Author</th></tr>\n");
+             "<th class='left'>Message</th>");
+
+        if (cgit_repo->enable_log_filecount) {
+                html("<th class='left'>Files</th>");
+                if (cgit_repo->enable_log_linecount)
+                        html("<th class='left'>Lines</th>");
+        }
+        html("<th class='left'>Author</th></tr>\n");
 
         if (ofs<0)
                 ofs = 0;
 
         for (i = 0; i < ofs && (commit = get_revision(&rev)) != NULL; i++) {
                 free(commit->buffer);
                 commit->buffer = NULL;
                 free_commit_list(commit->parents);