[PATCH v3 13/15] Turn `git bisect` into a full built-in

["Johannes Schindelin via GitGitGadget" <gitgitgadget@gmail.com>]

From: Johannes Schindelin <johannes.schindelin@gmx.de>

Now that the shell script hands off to the `bisect--helper` to do
_anything_ (except to show the help), it is but a tiny step to let the
helper implement the actual `git bisect` command instead.

This retires `git-bisect.sh`, concluding a multi-year journey that many
hands helped with, in particular Pranit Bauna, Tanushree Tumane and
Miriam Rubio.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
 Makefile                               |  3 +--
 builtin.h                              |  2 +-
 builtin/{bisect--helper.c => bisect.c} |  2 +-
 git-bisect.sh                          | 37 --------------------------
 git.c                                  |  2 +-
 5 files changed, 4 insertions(+), 42 deletions(-)
 rename builtin/{bisect--helper.c => bisect.c} (99%)
 delete mode 100755 git-bisect.sh

diff --git a/Makefile b/Makefile
index 61aadf3ce88..824b8a43576 100644
--- a/Makefile
+++ b/Makefile
@@ -611,7 +611,6 @@ THIRD_PARTY_SOURCES =
 # interactive shell sessions without exporting it.
 unexport CDPATH
 
-SCRIPT_SH += git-bisect.sh
 SCRIPT_SH += git-difftool--helper.sh
 SCRIPT_SH += git-filter-branch.sh
 SCRIPT_SH += git-merge-octopus.sh
@@ -1107,7 +1106,7 @@ BUILTIN_OBJS += builtin/am.o
 BUILTIN_OBJS += builtin/annotate.o
 BUILTIN_OBJS += builtin/apply.o
 BUILTIN_OBJS += builtin/archive.o
-BUILTIN_OBJS += builtin/bisect--helper.o
+BUILTIN_OBJS += builtin/bisect.o
 BUILTIN_OBJS += builtin/blame.o
 BUILTIN_OBJS += builtin/branch.o
 BUILTIN_OBJS += builtin/bugreport.o
diff --git a/builtin.h b/builtin.h
index 40e9ecc8485..b9470f8ab4f 100644
--- a/builtin.h
+++ b/builtin.h
@@ -116,7 +116,7 @@ int cmd_am(int argc, const char **argv, const char *prefix);
 int cmd_annotate(int argc, const char **argv, const char *prefix);
 int cmd_apply(int argc, const char **argv, const char *prefix);
 int cmd_archive(int argc, const char **argv, const char *prefix);
-int cmd_bisect__helper(int argc, const char **argv, const char *prefix);
+int cmd_bisect(int argc, const char **argv, const char *prefix);
 int cmd_blame(int argc, const char **argv, const char *prefix);
 int cmd_branch(int argc, const char **argv, const char *prefix);
 int cmd_bugreport(int argc, const char **argv, const char *prefix);
diff --git a/builtin/bisect--helper.c b/builtin/bisect.c
similarity index 99%
rename from builtin/bisect--helper.c
rename to builtin/bisect.c
index a68f2c5a919..d33de133c8c 100644
--- a/builtin/bisect--helper.c
+++ b/builtin/bisect.c
@@ -1299,7 +1299,7 @@ static int bisect_run(struct bisect_terms *terms, const char **argv, int argc)
 	return res;
 }
 
-int cmd_bisect__helper(int argc, const char **argv, const char *prefix)
+int cmd_bisect(int argc, const char **argv, const char *prefix)
 {
 	int res = 0;
 	struct bisect_terms terms = { .term_good = NULL, .term_bad = NULL };
diff --git a/git-bisect.sh b/git-bisect.sh
deleted file mode 100755
index 028d39cd9ce..00000000000
--- a/git-bisect.sh
+++ /dev/null
@@ -1,37 +0,0 @@
-#!/bin/sh
-
-USAGE='[help|start|bad|good|new|old|terms|skip|next|reset|visualize|view|replay|log|run]'
-LONG_USAGE='git bisect help
-	print this long help message.
-git bisect start [--term-{new,bad}=<term> --term-{old,good}=<term>]
-		 [--no-checkout] [--first-parent] [<bad> [<good>...]] [--] [<pathspec>...]
-	reset bisect state and start bisection.
-git bisect (bad|new) [<rev>]
-	mark <rev> a known-bad revision/
-		a revision after change in a given property.
-git bisect (good|old) [<rev>...]
-	mark <rev>... known-good revisions/
-		revisions before change in a given property.
-git bisect terms [--term-good | --term-bad]
-	show the terms used for old and new commits (default: bad, good)
-git bisect skip [(<rev>|<range>)...]
-	mark <rev>... untestable revisions.
-git bisect next
-	find next bisection to test and check it out.
-git bisect reset [<commit>]
-	finish bisection search and go back to commit.
-git bisect (visualize|view)
-	show bisect status in gitk.
-git bisect replay <logfile>
-	replay bisection log.
-git bisect log
-	show bisect log.
-git bisect run <cmd>...
-	use <cmd>... to automatically bisect.
-
-Please use "git help bisect" to get the full man page.'
-
-OPTIONS_SPEC=
-. git-sh-setup
-
-exec git bisect--helper "$@"
diff --git a/git.c b/git.c
index 5ff4f3e25b7..40ed082e621 100644
--- a/git.c
+++ b/git.c
@@ -492,7 +492,7 @@ static struct cmd_struct commands[] = {
 	{ "annotate", cmd_annotate, RUN_SETUP | NO_PARSEOPT },
 	{ "apply", cmd_apply, RUN_SETUP_GENTLY },
 	{ "archive", cmd_archive, RUN_SETUP_GENTLY },
-	{ "bisect--helper", cmd_bisect__helper, RUN_SETUP },
+	{ "bisect", cmd_bisect, RUN_SETUP },
 	{ "blame", cmd_blame, RUN_SETUP },
 	{ "branch", cmd_branch, RUN_SETUP | DELAY_PAGER_CONFIG },
 	{ "bugreport", cmd_bugreport, RUN_SETUP_GENTLY },
-- 
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