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Merge branch 'nd/diff-parseopt'

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The diff machinery, one of the oldest parts of the system, which
long predates the parse-options API, uses fairly long and complex
handcrafted option parser.  This is being rewritten to use the
parse-options API.

* nd/diff-parseopt:
  diff.c: convert --raw
  diff.c: convert -W|--[no-]function-context
  diff.c: convert -U|--unified
  diff.c: convert -u|-p|--patch
  diff.c: prepare to use parse_options() for parsing
  diff.h: avoid bit fields in struct diff_flags
  diff.h: keep forward struct declarations sorted
  parse-options: allow ll_callback with OPTION_CALLBACK
  parse-options: avoid magic return codes
  parse-options: stop abusing 'callback' for lowlevel callbacks
  parse-options: add OPT_BITOP()
  parse-options: disable option abbreviation with PARSE_OPT_KEEP_UNKNOWN
  parse-options: add one-shot mode
  parse-options.h: remove extern on function prototypes
This commit is contained in:
Junio C Hamano
2019-03-07 09:59:52 +09:00
parent 7d0c1f4556 ed88148674
commit 54b469b9e9
10 changed files with 319 additions and 159 deletions
Download Patch File Download Diff File Expand all files Collapse all files

41
builtin/update-index.c
View File

@ -848,14 +848,16 @@ static int parse_new_style_cacheinfo(const char *arg,
return 0;
}
static int cacheinfo_callback(struct parse_opt_ctx_t *ctx,
const struct option *opt, int unset)
static enum parse_opt_result cacheinfo_callback(
struct parse_opt_ctx_t *ctx, const struct option *opt,
const char *arg, int unset)
{
struct object_id oid;
unsigned int mode;
const char *path;
BUG_ON_OPT_NEG(unset);
BUG_ON_OPT_ARG(arg);
if (!parse_new_style_cacheinfo(ctx->argv[1], &mode, &oid, &path)) {
if (add_cacheinfo(mode, &oid, path, 0))
@ -874,12 +876,14 @@ static int cacheinfo_callback(struct parse_opt_ctx_t *ctx,
return 0;
}
static int stdin_cacheinfo_callback(struct parse_opt_ctx_t *ctx,
const struct option *opt, int unset)
static enum parse_opt_result stdin_cacheinfo_callback(
struct parse_opt_ctx_t *ctx, const struct option *opt,
const char *arg, int unset)
{
int *nul_term_line = opt->value;
BUG_ON_OPT_NEG(unset);
BUG_ON_OPT_ARG(arg);
if (ctx->argc != 1)
return error("option '%s' must be the last argument", opt->long_name);
@ -888,12 +892,14 @@ static int stdin_cacheinfo_callback(struct parse_opt_ctx_t *ctx,
return 0;
}
static int stdin_callback(struct parse_opt_ctx_t *ctx,
const struct option *opt, int unset)
static enum parse_opt_result stdin_callback(
struct parse_opt_ctx_t *ctx, const struct option *opt,
const char *arg, int unset)
{
int *read_from_stdin = opt->value;
BUG_ON_OPT_NEG(unset);
BUG_ON_OPT_ARG(arg);
if (ctx->argc != 1)
return error("option '%s' must be the last argument", opt->long_name);
@ -901,13 +907,15 @@ static int stdin_callback(struct parse_opt_ctx_t *ctx,
return 0;
}
static int unresolve_callback(struct parse_opt_ctx_t *ctx,
const struct option *opt, int unset)
static enum parse_opt_result unresolve_callback(
struct parse_opt_ctx_t *ctx, const struct option *opt,
const char *arg, int unset)
{
int *has_errors = opt->value;
const char *prefix = startup_info->prefix;
BUG_ON_OPT_NEG(unset);
BUG_ON_OPT_ARG(arg);
/* consume remaining arguments. */
*has_errors = do_unresolve(ctx->argc, ctx->argv,
@ -920,13 +928,15 @@ static int unresolve_callback(struct parse_opt_ctx_t *ctx,
return 0;
}
static int reupdate_callback(struct parse_opt_ctx_t *ctx,
const struct option *opt, int unset)
static enum parse_opt_result reupdate_callback(
struct parse_opt_ctx_t *ctx, const struct option *opt,
const char *arg, int unset)
{
int *has_errors = opt->value;
const char *prefix = startup_info->prefix;
BUG_ON_OPT_NEG(unset);
BUG_ON_OPT_ARG(arg);
/* consume remaining arguments. */
setup_work_tree();
@ -986,7 +996,8 @@ int cmd_update_index(int argc, const char **argv, const char *prefix)
N_("add the specified entry to the index"),
PARSE_OPT_NOARG | /* disallow --cacheinfo=<mode> form */
PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP,
(parse_opt_cb *) cacheinfo_callback},
NULL, 0,
cacheinfo_callback},
{OPTION_CALLBACK, 0, "chmod", &set_executable_bit, "(+|-)x",
N_("override the executable bit of the listed files"),
PARSE_OPT_NONEG,
@ -1012,19 +1023,19 @@ int cmd_update_index(int argc, const char **argv, const char *prefix)
{OPTION_LOWLEVEL_CALLBACK, 0, "stdin", &read_from_stdin, NULL,
N_("read list of paths to be updated from standard input"),
PARSE_OPT_NONEG | PARSE_OPT_NOARG,
(parse_opt_cb *) stdin_callback},
NULL, 0, stdin_callback},
{OPTION_LOWLEVEL_CALLBACK, 0, "index-info", &nul_term_line, NULL,
N_("add entries from standard input to the index"),
PARSE_OPT_NONEG | PARSE_OPT_NOARG,
(parse_opt_cb *) stdin_cacheinfo_callback},
NULL, 0, stdin_cacheinfo_callback},
{OPTION_LOWLEVEL_CALLBACK, 0, "unresolve", &has_errors, NULL,
N_("repopulate stages #2 and #3 for the listed paths"),
PARSE_OPT_NONEG | PARSE_OPT_NOARG,
(parse_opt_cb *) unresolve_callback},
NULL, 0, unresolve_callback},
{OPTION_LOWLEVEL_CALLBACK, 'g', "again", &has_errors, NULL,
N_("only update entries that differ from HEAD"),
PARSE_OPT_NONEG | PARSE_OPT_NOARG,
(parse_opt_cb *) reupdate_callback},
NULL, 0, reupdate_callback},
OPT_BIT(0, "ignore-missing", &refresh_args.flags,
N_("ignore files missing from worktree"),
REFRESH_IGNORE_MISSING),