11 files changed, 40 insertions, 16 deletions

diff --git a/cgit.c b/cgit.c
index 6be3754..51ca78a 100644
--- a/cgit.c
+++ b/cgit.c
@@ -244,6 +244,8 @@ void config_cb(const char *name, const char *value)
                 ctx.cfg.robots = xstrdup(value);
         else if (!strcmp(name, "clone-prefix"))
                 ctx.cfg.clone_prefix = xstrdup(value);
+        else if (!strcmp(name, "clone-url"))
+                ctx.cfg.clone_url = xstrdup(value);
         else if (!strcmp(name, "local-time"))
                 ctx.cfg.local_time = atoi(value);
         else if (!prefixcmp(name, "mimetype."))
@@ -463,6 +465,7 @@ static int prepare_repo_cmd(struct cgit_context *ctx)
                 cgit_print_docend();
                 return 1;
         }
+        cgit_prepare_repo_env(ctx->repo);
         return 0;
 }
 
diff --git a/cgit.h b/cgit.h
index caa9d8e..bad66f0 100644
--- a/cgit.h
+++ b/cgit.h
@@ -165,6 +165,7 @@ struct cgit_config {
         char *agefile;
         char *cache_root;
         char *clone_prefix;
+        char *clone_url;
         char *css;
         char *favicon;
         char *footer;
@@ -319,9 +320,11 @@ extern const char *cgit_repobasename(const char *reponame);
 
 extern int cgit_parse_snapshots_mask(const char *str);
 
-extern int cgit_open_filter(struct cgit_filter *filter, struct cgit_repo * repo);
+extern int cgit_open_filter(struct cgit_filter *filter);
 extern int cgit_close_filter(struct cgit_filter *filter);
 
+extern void cgit_prepare_repo_env(struct cgit_repo * repo);
+
 extern int readfile(const char *path, char **buf, size_t *size);
 
 extern char *expand_macros(const char *txt);
diff --git a/cgitrc.5.txt b/cgitrc.5.txt
index 9a9965b..5ba8134 100644
--- a/cgitrc.5.txt
+++ b/cgitrc.5.txt
@@ -76,6 +76,11 @@ clone-prefix::
         setting is only used if `repo.clone-url` is unspecified. Default value:
         none.
 
+clone-url::
+        Space-separated list of clone-url templates. This setting is only
+        used if `repo.clone-url` is unspecified. Default value: none. See
+        also: "MACRO EXPANSION", "FILTER API".
+
 commit-filter::
         Specifies a command which will be invoked to format commit messages.
         The command will get the message on its STDIN, and the STDOUT from the
@@ -363,7 +368,7 @@ repo.about-filter::
 
 repo.clone-url::
         A list of space-separated urls which can be used to clone this repo.
-        Default value: none.
+        Default value: none. See also: "MACRO EXPANSION".
 
 repo.commit-filter::
         Override the default commit-filter. Default value: none. See also:
@@ -511,6 +516,12 @@ can be accomplished by adding the following line to /etc/cgitrc:
 
         include=/etc/cgitrc.d/$HTTP_HOST
 
+The following options are expanded during request processing, and support
+the environment variables defined in "FILTER API":
+
+- clone-url
+- repo.clone-url
+
 
 EXAMPLE CGITRC FILE
 -------------------
@@ -520,8 +531,8 @@ EXAMPLE CGITRC FILE
 cache-size=1000
 
 
-# Specify some default clone prefixes
-clone-prefix=git://example.com ssh://example.com/pub/git http://example.com/git
+# Specify some default clone urls using macro expansion
+clone-url=git://foo.org/$CGIT_REPO_URL git@foo.org:$CGIT_REPO_URL
 
 # Specify the css url
 css=/css/cgit.css
diff --git a/shared.c b/shared.c
index be2ae59..699c362 100644
--- a/shared.c
+++ b/shared.c
@@ -70,6 +70,7 @@ struct cgit_repo *cgit_add_repo(const char *url)
         ret->about_filter = ctx.cfg.about_filter;
         ret->commit_filter = ctx.cfg.commit_filter;
         ret->source_filter = ctx.cfg.source_filter;
+        ret->clone_url = ctx.cfg.clone_url;
         return ret;
 }
 
@@ -374,7 +375,8 @@ typedef struct {
         char * value;
 } cgit_env_var;
 
-static void prepare_env(struct cgit_repo * repo) {
+void cgit_prepare_repo_env(struct cgit_repo * repo)
+{
         cgit_env_var env_vars[] = {
                 { .name = "CGIT_REPO_URL", .value = repo->url },
                 { .name = "CGIT_REPO_NAME", .value = repo->name },
@@ -395,7 +397,7 @@ static void prepare_env(struct cgit_repo * repo) {
                         fprintf(stderr, warn, p->name, p->value);
 }
 
-int cgit_open_filter(struct cgit_filter *filter, struct cgit_repo * repo)
+int cgit_open_filter(struct cgit_filter *filter)
 {
 
         filter->old_stdout = chk_positive(dup(STDOUT_FILENO),
@@ -406,8 +408,6 @@ int cgit_open_filter(struct cgit_filter *filter, struct cgit_repo * repo)
                 close(filter->pipe_fh[1]);
                 chk_non_negative(dup2(filter->pipe_fh[0], STDIN_FILENO),
                         "Unable to use pipe as STDIN");
-                if (repo)
-                        prepare_env(repo);
                 execvp(filter->cmd, filter->argv);
                 die("Unable to exec subprocess %s: %s (%d)", filter->cmd,
                         strerror(errno), errno);
diff --git a/tests/setup.sh b/tests/setup.sh
index b2f1169..1e06107 100755
--- a/tests/setup.sh
+++ b/tests/setup.sh
@@ -62,6 +62,7 @@ enable-log-linecount=1
 summary-log=5
 summary-branches=5
 summary-tags=5
+clone-url=git://example.org/\$CGIT_REPO_URL.git
 
 repo.url=foo
 repo.path=$PWD/trash/repos/foo/.git
diff --git a/tests/t0102-summary.sh b/tests/t0102-summary.sh
index f0b0d9a..f299c5a 100755
--- a/tests/t0102-summary.sh
+++ b/tests/t0102-summary.sh
@@ -9,6 +9,9 @@ run_test 'find commit 1' 'grep -e "commit 1" trash/tmp'
 run_test 'find commit 5' 'grep -e "commit 5" trash/tmp'
 run_test 'find branch master' 'grep -e "master" trash/tmp'
 run_test 'no tags' '! grep -e "tags" trash/tmp'
+run_test 'clone-url expanded correctly' '
+        grep -e "git://example.org/foo.git" trash/tmp
+'
 
 run_test 'generate bar summary' 'cgit_url "bar" >trash/tmp'
 run_test 'no commit 45' '! grep -e "commit 45" trash/tmp'
@@ -16,5 +19,8 @@ run_test 'find commit 46' 'grep -e "commit 46" trash/tmp'
 run_test 'find commit 50' 'grep -e "commit 50" trash/tmp'
 run_test 'find branch master' 'grep -e "master" trash/tmp'
 run_test 'no tags' '! grep -e "tags" trash/tmp'
+run_test 'clone-url expanded correctly' '
+        grep -e "git://example.org/bar.git" trash/tmp
+'
 
 tests_done
diff --git a/ui-commit.c b/ui-commit.c
index a69dec6..536a8e8 100644
--- a/ui-commit.c
+++ b/ui-commit.c
@@ -106,7 +106,7 @@ void cgit_print_commit(char *hex, const char *prefix)
         html("</table>\n");
         html("<div class='commit-subject'>");
         if (ctx.repo->commit_filter)
-                cgit_open_filter(ctx.repo->commit_filter, ctx.repo);
+                cgit_open_filter(ctx.repo->commit_filter);
         html_txt(info->subject);
         if (ctx.repo->commit_filter)
                 cgit_close_filter(ctx.repo->commit_filter);
@@ -114,7 +114,7 @@ void cgit_print_commit(char *hex, const char *prefix)
         html("</div>");
         html("<div class='commit-msg'>");
         if (ctx.repo->commit_filter)
-                cgit_open_filter(ctx.repo->commit_filter, ctx.repo);
+                cgit_open_filter(ctx.repo->commit_filter);
         html_txt(info->msg);
         if (ctx.repo->commit_filter)
                 cgit_close_filter(ctx.repo->commit_filter);
@@ -123,7 +123,7 @@ void cgit_print_commit(char *hex, const char *prefix)
                 html("<div class='notes-header'>Notes</div>");
                 html("<div class='notes'>");
                 if (ctx.repo->commit_filter)
-                        cgit_open_filter(ctx.repo->commit_filter, ctx.repo);
+                        cgit_open_filter(ctx.repo->commit_filter);
                 html_txt(notes.buf);
                 if (ctx.repo->commit_filter)
                         cgit_close_filter(ctx.repo->commit_filter);
diff --git a/ui-repolist.c b/ui-repolist.c
index dce2eac..25c36ce 100644
--- a/ui-repolist.c
+++ b/ui-repolist.c
@@ -300,7 +300,7 @@ void cgit_print_site_readme()
         if (!ctx.cfg.root_readme)
                 return;
         if (ctx.cfg.about_filter)
-                cgit_open_filter(ctx.cfg.about_filter, NULL);
+                cgit_open_filter(ctx.cfg.about_filter);
         html_include(ctx.cfg.root_readme);
         if (ctx.cfg.about_filter)
                 cgit_close_filter(ctx.cfg.about_filter);
diff --git a/ui-snapshot.c b/ui-snapshot.c
index 126779d..07cc944 100644
--- a/ui-snapshot.c
+++ b/ui-snapshot.c
@@ -19,7 +19,7 @@ static int write_compressed_tar_archive(struct archiver_args *args,const char *f
         f.argv = malloc(2 * sizeof(char *));
         f.argv[0] = f.cmd;
         f.argv[1] = NULL;
-        cgit_open_filter(&f, NULL);
+        cgit_open_filter(&f);
         rv = write_tar_archive(args);
         cgit_close_filter(&f);
         return rv;
diff --git a/ui-summary.c b/ui-summary.c
index 1e9a1b6..227ed27 100644
--- a/ui-summary.c
+++ b/ui-summary.c
@@ -62,7 +62,7 @@ void cgit_print_summary()
                                NULL, NULL, 0, 0);
         }
         if (ctx.repo->clone_url)
-                print_urls(ctx.repo->clone_url, NULL);
+                print_urls(expand_macros(ctx.repo->clone_url), NULL);
         else if (ctx.cfg.clone_prefix)
                 print_urls(ctx.cfg.clone_prefix, ctx.repo->url);
         html("</table>");
@@ -113,7 +113,7 @@ void cgit_print_repo_readme(char *path)
          */
         html("<div id='summary'>");
         if (ctx.repo->about_filter)
-                cgit_open_filter(ctx.repo->about_filter, ctx.repo);
+                cgit_open_filter(ctx.repo->about_filter);
         if (ref)
                 cgit_print_file(tmp, ref);
         else
diff --git a/ui-tree.c b/ui-tree.c
index 2d8d2f3..442b6be 100644
--- a/ui-tree.c
+++ b/ui-tree.c
@@ -45,7 +45,7 @@ static void print_text_buffer(const char *name, char *buf, unsigned long size)
         if (ctx.repo->source_filter) {
                 html("<td class='lines'><pre><code>");
                 ctx.repo->source_filter->argv[1] = xstrdup(name);
-                cgit_open_filter(ctx.repo->source_filter, ctx.repo);
+                cgit_open_filter(ctx.repo->source_filter);
                 html_raw(buf, size);
                 cgit_close_filter(ctx.repo->source_filter);
                 free(ctx.repo->source_filter->argv[1]);