cgit.c: always setup cgit repo environment variables

When cgit learned to setup environment variables for certain repo
settings before invoking a filter process, the setup occurred inside
cgit_open_filter().

This patch moves the setup out of cgit_open_filter() and into
prepare_repo_cmd() to prepare for additional uses of these variables.

Reviewed-by: Ferry Huberts <mailings@hupie.com>
Signed-off-by: Lars Hjemli <hjemli@gmail.com>

8 files changed, 14 insertions, 12 deletions

diff --git a/cgit.c b/cgit.c
index 6be3754..dd40893 100644
--- a/cgit.c
+++ b/cgit.c
@@ -463,6 +463,7 @@ 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..df7ee5d 100644
--- a/cgit.h
+++ b/cgit.h
@@ -319,9 +319,11 @@ 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/shared.c b/shared.c
index be2ae59..4adeaa8 100644
--- a/shared.c
+++ b/shared.c
@@ -374,7 +374,8 @@ 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 +396,7 @@ 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 +407,6 @@ 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/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..5be2545 100644
--- a/ui-summary.c
+++ b/ui-summary.c
@@ -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]);