Give python a chance to find "backported" modules

[git.git] / git.c

diff --git a/git.c b/git.c
index d189801..583923d 100644 (file)
--- a/git.c
+++ b/git.c
@@ -160,6 +160,26 @@ static void prepend_to_path(const char *dir, int len)
        setenv("PATH", path, 1);
 }
 
+/* has anyone seen 'man' installed anywhere else than in /usr/bin? */
+#define PATH_TO_MAN "/usr/bin/man"
+static void show_man_page(char *git_cmd)
+{
+       char *page;
+
+       if (!strncmp(git_cmd, "git", 3))
+               page = git_cmd;
+       else {
+               int page_len = strlen(git_cmd) + 4;
+
+               page = malloc(page_len + 1);
+               strcpy(page, "git-");
+               strcpy(page + 4, git_cmd);
+               page[page_len] = 0;
+       }
+
+       execlp(PATH_TO_MAN, "man", page, NULL);
+}
+
 int main(int argc, char **argv, char **envp)
 {
        char git_command[PATH_MAX + 1];
@@ -199,8 +219,12 @@ int main(int argc, char **argv, char **envp)
                        usage(NULL, NULL);
        }
 
-       if (i >= argc || show_help)
-               usage(exec_path, NULL);
+       if (i >= argc || show_help) {
+               if (i >= argc)
+                       usage(exec_path, NULL);
+
+               show_man_page(argv[i]);
+       }
 
        /* allow relative paths, but run with exact */
        if (chdir(exec_path)) {