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[PATCH v10 39/40] apply: refactor `git apply` option parsing

From
Christian Couder <christian.couder@gmail.com>
Date
Aug 8, 2016, 21:03 UTC
Message-ID
<20160808210337.5038-40-chriscool@tuxfamily.org>
In-Reply-To
<20160808210337.5038-1-chriscool@tuxfamily.org>

Parsing `git apply` options can be useful to other commands that want to call the libified apply functionality, because this way they can easily pass some options from their own command line to the libified apply functionality.

This will be used by `git am` in a following patch.

To make this possible, let's refactor the `git apply` option parsing code into a new libified apply_parse_options() function.

Doing that makes it possible to remove some functions definitions from "apply.h" and make them static in "apply.c".

Helped-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
---
 apply.c         | 103 +++++++++++++++++++++++++++++++++++++++++++++++++-------
 apply.h         |  18 +++-------
 builtin/apply.c |  74 ++--------------------------------------
 3 files changed, 97 insertions(+), 98 deletions(-)
diff --git a/apply.c b/apply.c
index bf81b70..2ec2a8a 100644
--- a/apply.c
+++ b/apply.c
@@ -4730,16 +4730,16 @@ static int apply_patch(struct apply_state *state,
 	return res;
 }
 
-int apply_option_parse_exclude(const struct option *opt,
-			       const char *arg, int unset)
+static int apply_option_parse_exclude(const struct option *opt,
+				      const char *arg, int unset)
 {
 	struct apply_state *state = opt->value;
 	add_name_limit(state, arg, 1);
 	return 0;
 }
 
-int apply_option_parse_include(const struct option *opt,
-			       const char *arg, int unset)
+static int apply_option_parse_include(const struct option *opt,
+				      const char *arg, int unset)
 {
 	struct apply_state *state = opt->value;
 	add_name_limit(state, arg, 0);
@@ -4747,9 +4747,9 @@ int apply_option_parse_include(const struct option *opt,
 	return 0;
 }
 
-int apply_option_parse_p(const struct option *opt,
-			 const char *arg,
-			 int unset)
+static int apply_option_parse_p(const struct option *opt,
+				const char *arg,
+				int unset)
 {
 	struct apply_state *state = opt->value;
 	state->p_value = atoi(arg);
@@ -4757,8 +4757,8 @@ int apply_option_parse_p(const struct option *opt,
 	return 0;
 }
 
-int apply_option_parse_space_change(const struct option *opt,
-				    const char *arg, int unset)
+static int apply_option_parse_space_change(const struct option *opt,
+					   const char *arg, int unset)
 {
 	struct apply_state *state = opt->value;
 	if (unset)
@@ -4768,8 +4768,8 @@ int apply_option_parse_space_change(const struct option *opt,
 	return 0;
 }
 
-int apply_option_parse_whitespace(const struct option *opt,
-				  const char *arg, int unset)
+static int apply_option_parse_whitespace(const struct option *opt,
+					 const char *arg, int unset)
 {
 	struct apply_state *state = opt->value;
 	state->whitespace_option = arg;
@@ -4778,8 +4778,8 @@ int apply_option_parse_whitespace(const struct option *opt,
 	return 0;
 }
 
-int apply_option_parse_directory(const struct option *opt,
-				 const char *arg, int unset)
+static int apply_option_parse_directory(const struct option *opt,
+					const char *arg, int unset)
 {
 	struct apply_state *state = opt->value;
 	strbuf_reset(&state->root);
@@ -4893,3 +4893,80 @@ int apply_all_patches(struct apply_state *state,
 		return res;
 	return (res == -1 ? 1 : 128);
 }
+
+int apply_parse_options(int argc, const char **argv,
+			struct apply_state *state,
+			int *force_apply, int *options,
+			const char * const *apply_usage)
+{
+	struct option builtin_apply_options[] = {
+		{ OPTION_CALLBACK, 0, "exclude", state, N_("path"),
+			N_("don't apply changes matching the given path"),
+			0, apply_option_parse_exclude },
+		{ OPTION_CALLBACK, 0, "include", state, N_("path"),
+			N_("apply changes matching the given path"),
+			0, apply_option_parse_include },
+		{ OPTION_CALLBACK, 'p', NULL, state, N_("num"),
+			N_("remove <num> leading slashes from traditional diff paths"),
+			0, apply_option_parse_p },
+		OPT_BOOL(0, "no-add", &state->no_add,
+			N_("ignore additions made by the patch")),
+		OPT_BOOL(0, "stat", &state->diffstat,
+			N_("instead of applying the patch, output diffstat for the input")),
+		OPT_NOOP_NOARG(0, "allow-binary-replacement"),
+		OPT_NOOP_NOARG(0, "binary"),
+		OPT_BOOL(0, "numstat", &state->numstat,
+			N_("show number of added and deleted lines in decimal notation")),
+		OPT_BOOL(0, "summary", &state->summary,
+			N_("instead of applying the patch, output a summary for the input")),
+		OPT_BOOL(0, "check", &state->check,
+			N_("instead of applying the patch, see if the patch is applicable")),
+		OPT_BOOL(0, "index", &state->check_index,
+			N_("make sure the patch is applicable to the current index")),
+		OPT_BOOL(0, "cached", &state->cached,
+			N_("apply a patch without touching the working tree")),
+		OPT_BOOL(0, "unsafe-paths", &state->unsafe_paths,
+			N_("accept a patch that touches outside the working area")),
+		OPT_BOOL(0, "apply", force_apply,
+			N_("also apply the patch (use with --stat/--summary/--check)")),
+		OPT_BOOL('3', "3way", &state->threeway,
+			 N_( "attempt three-way merge if a patch does not apply")),
+		OPT_FILENAME(0, "build-fake-ancestor", &state->fake_ancestor,
+			N_("build a temporary index based on embedded index information")),
+		/* Think twice before adding "--nul" synonym to this */
+		OPT_SET_INT('z', NULL, &state->line_termination,
+			N_("paths are separated with NUL character"), '\0'),
+		OPT_INTEGER('C', NULL, &state->p_context,
+				N_("ensure at least <n> lines of context match")),
+		{ OPTION_CALLBACK, 0, "whitespace", state, N_("action"),
+			N_("detect new or modified lines that have whitespace errors"),
+			0, apply_option_parse_whitespace },
+		{ OPTION_CALLBACK, 0, "ignore-space-change", state, NULL,
+			N_("ignore changes in whitespace when finding context"),
+			PARSE_OPT_NOARG, apply_option_parse_space_change },
+		{ OPTION_CALLBACK, 0, "ignore-whitespace", state, NULL,
+			N_("ignore changes in whitespace when finding context"),
+			PARSE_OPT_NOARG, apply_option_parse_space_change },
+		OPT_BOOL('R', "reverse", &state->apply_in_reverse,
+			N_("apply the patch in reverse")),
+		OPT_BOOL(0, "unidiff-zero", &state->unidiff_zero,
+			N_("don't expect at least one line of context")),
+		OPT_BOOL(0, "reject", &state->apply_with_reject,
+			N_("leave the rejected hunks in corresponding *.rej files")),
+		OPT_BOOL(0, "allow-overlap", &state->allow_overlap,
+			N_("allow overlapping hunks")),
+		OPT__VERBOSE(&state->apply_verbosity, N_("be verbose")),
+		OPT_BIT(0, "inaccurate-eof", options,
+			N_("tolerate incorrectly detected missing new-line at the end of file"),
+			APPLY_OPT_INACCURATE_EOF),
+		OPT_BIT(0, "recount", options,
+			N_("do not trust the line counts in the hunk headers"),
+			APPLY_OPT_RECOUNT),
+		{ OPTION_CALLBACK, 0, "directory", state, N_("root"),
+			N_("prepend <root> to all filenames"),
+			0, apply_option_parse_directory },
+		OPT_END()
+	};
+
+	return parse_options(argc, argv, state->prefix, builtin_apply_options, apply_usage, 0);
+}
diff --git a/apply.h b/apply.h
index 5cde641..e2b89e8 100644
--- a/apply.h
+++ b/apply.h
@@ -111,20 +111,10 @@ struct apply_state {
 	int applied_after_fixing_ws;
 };
 
-extern int apply_option_parse_exclude(const struct option *opt,
-				      const char *arg, int unset);
-extern int apply_option_parse_include(const struct option *opt,
-				      const char *arg, int unset);
-extern int apply_option_parse_p(const struct option *opt,
-				const char *arg,
-				int unset);
-extern int apply_option_parse_whitespace(const struct option *opt,
-					 const char *arg, int unset);
-extern int apply_option_parse_directory(const struct option *opt,
-					const char *arg, int unset);
-extern int apply_option_parse_space_change(const struct option *opt,
-					   const char *arg, int unset);
-
+extern int apply_parse_options(int argc, const char **argv,
+			       struct apply_state *state,
+			       int *force_apply, int *options,
+			       const char * const *apply_usage);
 extern int init_apply_state(struct apply_state *state,
 			    const char *prefix,
 			    struct lock_file *lock_file);
diff --git a/builtin/apply.c b/builtin/apply.c
index 7338701..81b9a61 100644
--- a/builtin/apply.c
+++ b/builtin/apply.c
@@ -18,80 +18,12 @@ int cmd_apply(int argc, const char **argv, const char *prefix)
 	int ret;
 	struct apply_state state;
 
-	struct option builtin_apply_options[] = {
-		{ OPTION_CALLBACK, 0, "exclude", &state, N_("path"),
-			N_("don't apply changes matching the given path"),
-			0, apply_option_parse_exclude },
-		{ OPTION_CALLBACK, 0, "include", &state, N_("path"),
-			N_("apply changes matching the given path"),
-			0, apply_option_parse_include },
-		{ OPTION_CALLBACK, 'p', NULL, &state, N_("num"),
-			N_("remove <num> leading slashes from traditional diff paths"),
-			0, apply_option_parse_p },
-		OPT_BOOL(0, "no-add", &state.no_add,
-			N_("ignore additions made by the patch")),
-		OPT_BOOL(0, "stat", &state.diffstat,
-			N_("instead of applying the patch, output diffstat for the input")),
-		OPT_NOOP_NOARG(0, "allow-binary-replacement"),
-		OPT_NOOP_NOARG(0, "binary"),
-		OPT_BOOL(0, "numstat", &state.numstat,
-			N_("show number of added and deleted lines in decimal notation")),
-		OPT_BOOL(0, "summary", &state.summary,
-			N_("instead of applying the patch, output a summary for the input")),
-		OPT_BOOL(0, "check", &state.check,
-			N_("instead of applying the patch, see if the patch is applicable")),
-		OPT_BOOL(0, "index", &state.check_index,
-			N_("make sure the patch is applicable to the current index")),
-		OPT_BOOL(0, "cached", &state.cached,
-			N_("apply a patch without touching the working tree")),
-		OPT_BOOL(0, "unsafe-paths", &state.unsafe_paths,
-			N_("accept a patch that touches outside the working area")),
-		OPT_BOOL(0, "apply", &force_apply,
-			N_("also apply the patch (use with --stat/--summary/--check)")),
-		OPT_BOOL('3', "3way", &state.threeway,
-			 N_( "attempt three-way merge if a patch does not apply")),
-		OPT_FILENAME(0, "build-fake-ancestor", &state.fake_ancestor,
-			N_("build a temporary index based on embedded index information")),
-		/* Think twice before adding "--nul" synonym to this */
-		OPT_SET_INT('z', NULL, &state.line_termination,
-			N_("paths are separated with NUL character"), '\0'),
-		OPT_INTEGER('C', NULL, &state.p_context,
-				N_("ensure at least <n> lines of context match")),
-		{ OPTION_CALLBACK, 0, "whitespace", &state, N_("action"),
-			N_("detect new or modified lines that have whitespace errors"),
-			0, apply_option_parse_whitespace },
-		{ OPTION_CALLBACK, 0, "ignore-space-change", &state, NULL,
-			N_("ignore changes in whitespace when finding context"),
-			PARSE_OPT_NOARG, apply_option_parse_space_change },
-		{ OPTION_CALLBACK, 0, "ignore-whitespace", &state, NULL,
-			N_("ignore changes in whitespace when finding context"),
-			PARSE_OPT_NOARG, apply_option_parse_space_change },
-		OPT_BOOL('R', "reverse", &state.apply_in_reverse,
-			N_("apply the patch in reverse")),
-		OPT_BOOL(0, "unidiff-zero", &state.unidiff_zero,
-			N_("don't expect at least one line of context")),
-		OPT_BOOL(0, "reject", &state.apply_with_reject,
-			N_("leave the rejected hunks in corresponding *.rej files")),
-		OPT_BOOL(0, "allow-overlap", &state.allow_overlap,
-			N_("allow overlapping hunks")),
-		OPT__VERBOSE(&state.apply_verbosity, N_("be verbose")),
-		OPT_BIT(0, "inaccurate-eof", &options,
-			N_("tolerate incorrectly detected missing new-line at the end of file"),
-			APPLY_OPT_INACCURATE_EOF),
-		OPT_BIT(0, "recount", &options,
-			N_("do not trust the line counts in the hunk headers"),
-			APPLY_OPT_RECOUNT),
-		{ OPTION_CALLBACK, 0, "directory", &state, N_("root"),
-			N_("prepend <root> to all filenames"),
-			0, apply_option_parse_directory },
-		OPT_END()
-	};
-
 	if (init_apply_state(&state, prefix, &lock_file))
 		exit(128);
 
-	argc = parse_options(argc, argv, state.prefix, builtin_apply_options,
-			apply_usage, 0);
+	argc = apply_parse_options(argc, argv,
+				   &state, &force_apply, &options,
+				   apply_usage);
 
 	if (check_apply_state(&state, force_apply))
 		exit(128);

-- 
2.9.2.614.g4980f51
Previous: Christian CouderNext: Christian Couder
Message 31 of 51 in “libify apply and use lib in am, part 2”
  1. 00/40 libify apply and use lib in am, part 2Christian Couder, Aug 8, 2016
  2. 02/40 apply: move 'struct apply_state' to apply.hChristian Couder, Aug 8, 2016
  3. 03/40 builtin/apply: make apply_patch() return -1 or -128 instead of die()ingChristian Couder, Aug 8, 2016
  4. 04/40 builtin/apply: read_patch_file() return -1 instead of die()ingChristian Couder, Aug 8, 2016
  5. 07/40 builtin/apply: make parse_single_patch() return -1 on errorChristian Couder, Aug 8, 2016
  6. 05/40 builtin/apply: make find_header() return -128 instead of die()ingChristian Couder, Aug 8, 2016
  7. 06/40 builtin/apply: make parse_chunk() return a negative integer on errorChristian Couder, Aug 8, 2016
  8. 10/40 builtin/apply: move init_apply_state() to apply.cChristian Couder, Aug 8, 2016
  9. 09/40 builtin/apply: make parse_ignorewhitespace_option() return -1 instead of die()ingChristian Couder, Aug 8, 2016
  10. 12/40 builtin/apply: make check_apply_state() return -1 instead of die()ingChristian Couder, Aug 8, 2016
  11. 13/40 builtin/apply: move check_apply_state() to apply.cChristian Couder, Aug 8, 2016
  12. 11/40 apply: make init_apply_state() return -1 instead of exit()ingChristian Couder, Aug 8, 2016
  13. 15/40 builtin/apply: make parse_traditional_patch() return -1 on errorChristian Couder, Aug 8, 2016
  14. 21/40 builtin/apply: make add_conflicted_stages_file() return -1 on errorChristian Couder, Aug 8, 2016
  15. 20/40 builtin/apply: make remove_file() return -1 on errorChristian Couder, Aug 8, 2016
  16. 22/40 builtin/apply: make add_index_file() return -1 on errorChristian Couder, Aug 8, 2016
  17. 23/40 builtin/apply: make create_file() return -1 on errorChristian Couder, Aug 8, 2016
  18. 27/40 builtin/apply: make create_one_file() return -1 on errorChristian Couder, Aug 8, 2016
  19. 29/40 apply: rename and move opt constants to apply.hChristian Couder, Aug 8, 2016
  20. 28/40 builtin/apply: rename option parsing functionsChristian Couder, Aug 8, 2016
  21. stefan.naewe@atlas-elektronik.comAug 9, 2016
  22. 26/40 builtin/apply: make try_create_file() return -1 on errorChristian Couder, Aug 8, 2016
  23. 25/40 builtin/apply: make write_out_results() return -1 on errorChristian Couder, Aug 8, 2016
  24. 31/40 apply: make some parsing functions static againChristian Couder, Aug 8, 2016
  25. 24/40 builtin/apply: make write_out_one_result() return -1 on errorChristian Couder, Aug 8, 2016
  26. 32/40 apply: use error_errno() where possibleChristian Couder, Aug 8, 2016
  27. 19/40 builtin/apply: make build_fake_ancestor() return -1 on errorChristian Couder, Aug 8, 2016
  28. 37/40 usage: add get_error_routine() and get_warn_routine()Christian Couder, Aug 8, 2016
  29. 36/40 usage: add set_warn_routine()Christian Couder, Aug 8, 2016
  30. 35/40 apply: don't print on stdout in verbosity_silent modeChristian Couder, Aug 8, 2016
  31. 39/40 apply: refactor `git apply` option parsingChristian Couder, Aug 8, 2016
  32. 33/40 environment: add set_index_file()Christian Couder, Aug 8, 2016
  33. Junio C HamanoAug 8, 2016
  34. Christian CouderAug 10, 2016
  35. Junio C HamanoAug 10, 2016
  36. Christian CouderAug 11, 2016
  37. Junio C HamanoAug 11, 2016
  38. 34/40 apply: make it possible to silently applyChristian Couder, Aug 8, 2016
  39. 38/40 apply: change error_routine when silentChristian Couder, Aug 8, 2016
  40. 18/40 builtin/apply: change die_on_unsafe_path() to check_unsafe_path()Christian Couder, Aug 8, 2016
  41. 40/40 builtin/am: use apply api in run_apply()Christian Couder, Aug 8, 2016
  42. 17/40 builtin/apply: make gitdiff_*() return -1 on errorChristian Couder, Aug 8, 2016
  43. 16/40 builtin/apply: make gitdiff_*() return 1 at end of headerChristian Couder, Aug 8, 2016
  44. 14/40 builtin/apply: make apply_all_patches() return 128 or 1 on errorChristian Couder, Aug 8, 2016
  45. 08/40 builtin/apply: make parse_whitespace_option() return -1 instead of die()ingChristian Couder, Aug 8, 2016
  46. 01/40 apply: make some names more specificChristian Couder, Aug 8, 2016
  47. stefan.naewe@atlas-elektronik.comAug 9, 2016
  48. Christian CouderAug 11, 2016
  49. stefan.naewe@atlas-elektronik.comAug 11, 2016
  50. Christian CouderAug 8, 2016
  51. Junio C HamanoAug 8, 2016

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