At the beginning of the rewrite of git-am.sh to C, in order to not break
existing test scripts that depended on a functional git-am, a
redirection to git-am.sh was introduced that would activate if the
environment variable _GIT_USE_BUILTIN_AM was not defined.

Now that all of git-am.sh's functionality has been re-implemented in
builtin/am.c, remove this redirection, and retire git-am.sh into
contrib/examples/.

Signed-off-by: Paul Tan <pyoka...@gmail.com>
---
 Makefile                                |  1 -
 builtin/am.c                            | 15 ---------------
 git-am.sh => contrib/examples/git-am.sh |  0
 git.c                                   |  7 +------
 4 files changed, 1 insertion(+), 22 deletions(-)
 rename git-am.sh => contrib/examples/git-am.sh (100%)

diff --git a/Makefile b/Makefile
index da451f8..e39ca6c 100644
--- a/Makefile
+++ b/Makefile
@@ -467,7 +467,6 @@ TEST_PROGRAMS_NEED_X =
 # interactive shell sessions without exporting it.
 unexport CDPATH
 
-SCRIPT_SH += git-am.sh
 SCRIPT_SH += git-bisect.sh
 SCRIPT_SH += git-difftool--helper.sh
 SCRIPT_SH += git-filter-branch.sh
diff --git a/builtin/am.c b/builtin/am.c
index 1ff74ac..84d57d4 100644
--- a/builtin/am.c
+++ b/builtin/am.c
@@ -2221,21 +2221,6 @@ int cmd_am(int argc, const char **argv, const char 
*prefix)
                OPT_END()
        };
 
-       /*
-        * NEEDSWORK: Once all the features of git-am.sh have been
-        * re-implemented in builtin/am.c, this preamble can be removed.
-        */
-       if (!getenv("_GIT_USE_BUILTIN_AM")) {
-               const char *path = mkpath("%s/git-am", git_exec_path());
-
-               if (sane_execvp(path, (char **)argv) < 0)
-                       die_errno("could not exec %s", path);
-       } else {
-               prefix = setup_git_directory();
-               trace_repo_setup(prefix);
-               setup_work_tree();
-       }
-
        git_config(git_default_config, NULL);
 
        am_state_init(&state, git_path("rebase-apply"));
diff --git a/git-am.sh b/contrib/examples/git-am.sh
similarity index 100%
rename from git-am.sh
rename to contrib/examples/git-am.sh
diff --git a/git.c b/git.c
index 38d9ad5..5feba41 100644
--- a/git.c
+++ b/git.c
@@ -370,12 +370,7 @@ static int run_builtin(struct cmd_struct *p, int argc, 
const char **argv)
 
 static struct cmd_struct commands[] = {
        { "add", cmd_add, RUN_SETUP | NEED_WORK_TREE },
-       /*
-        * NEEDSWORK: Once the redirection to git-am.sh in builtin/am.c has
-        * been removed, this entry should be changed to
-        * RUN_SETUP | NEED_WORK_TREE
-        */
-       { "am", cmd_am },
+       { "am", cmd_am, RUN_SETUP | NEED_WORK_TREE },
        { "annotate", cmd_annotate, RUN_SETUP },
        { "apply", cmd_apply, RUN_SETUP_GENTLY },
        { "archive", cmd_archive },
-- 
2.5.0.280.gd88bd6e

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