rev-parse: --local-env-vars option

This prints the list of repo-local environment variables.

Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/Documentation/git-rev-parse.txt b/Documentation/git-rev-parse.txt
index d677c72d5ea6a8d38cf77f663e6b5da591028efa..33092a33739feb59cb1c5912c7f3a221a88ff9ec 100644 (file)
--- a/Documentation/git-rev-parse.txt
+++ b/Documentation/git-rev-parse.txt
@@ -149,6 +149,12 @@ shown.  If the pattern does not contain a globbing character (`?`,
 --is-bare-repository::
        When the repository is bare print "true", otherwise "false".
 
+--local-env-vars::
+       List the GIT_* environment variables that are local to the
+       repository (e.g. GIT_DIR or GIT_WORK_TREE, but not GIT_EDITOR).
+       Only the names of the variables are listed, not their value,
+       even if they are set.
+
 --short::
 --short=number::
        Instead of outputting the full SHA1 values of object names try to

diff --git a/builtin-rev-parse.c b/builtin-rev-parse.c
index a8c5043dedd785b8fc43c0921edd01e2adac65e1..b76f205e62f29a21fc4b0fedb4a981488ec7cb7f 100644 (file)
--- a/builtin-rev-parse.c
+++ b/builtin-rev-parse.c
@@ -455,6 +455,13 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
        if (argc > 1 && !strcmp("--sq-quote", argv[1]))
                return cmd_sq_quote(argc - 2, argv + 2);
 
+       if (argc == 2 && !strcmp("--local-env-vars", argv[1])) {
+               int i;
+               for (i = 0; local_repo_env[i]; i++)
+                       printf("%s\n", local_repo_env[i]);
+               return 0;
+       }
+
        if (argc > 1 && !strcmp("-h", argv[1]))
                usage(builtin_rev_parse_usage);