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difftool: prepare "struct child_process" in cmd_difftool() 

Move the preparation of the "struct child_process" from run_dir_diff()
to its only caller, cmd_difftool(). This is in preparation for
migrating run_file_diff() to using the run_command() API directly, and
to move more of the shared setup of the two to cmd_difftool().

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Ævar Arnfjörð Bjarmason 2021-09-13 05:35:37 +02:00 коммит произвёл Junio C Hamano
Родитель 225bc32a98
Коммит ec3cc27ab0
1 изменённых файлов: 15 добавлений и 14 удалений
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29
builtin/difftool.c
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@ -331,7 +331,8 @@ static int checkout_path(unsigned mode, struct object_id *oid,
}
static int run_dir_diff(const char *extcmd, int symlinks, const char *prefix,
int argc, const char **argv)
int argc, const char **argv,
struct child_process *child)
{
char tmpdir[PATH_MAX];
struct strbuf info = STRBUF_INIT, lpath = STRBUF_INIT;
@ -352,7 +353,6 @@ static int run_dir_diff(const char *extcmd, int symlinks, const char *prefix,
struct index_state wtindex;
struct checkout lstate, rstate;
int rc, flags = RUN_GIT_CMD, err = 0;
struct child_process child = CHILD_PROCESS_INIT;
const char *helper_argv[] = { "difftool--helper", NULL, NULL, NULL };
struct hashmap wt_modified, tmp_modified;
int indices_loaded = 0;
@ -387,19 +387,19 @@ static int run_dir_diff(const char *extcmd, int symlinks, const char *prefix,
rdir_len = rdir.len;
wtdir_len = wtdir.len;
child.no_stdin = 1;
child.git_cmd = 1;
child.use_shell = 0;
child.clean_on_exit = 1;
child.dir = prefix;
child.out = -1;
strvec_pushl(&child.args, "diff", "--raw", "--no-abbrev", "-z",
child->no_stdin = 1;
child->git_cmd = 1;
child->use_shell = 0;
child->clean_on_exit = 1;
child->dir = prefix;
child->out = -1;
strvec_pushl(&child->args, "diff", "--raw", "--no-abbrev", "-z",
NULL);
for (i = 0; i < argc; i++)
strvec_push(&child.args, argv[i]);
if (start_command(&child))
strvec_push(&child->args, argv[i]);
if (start_command(child))
die("could not obtain raw diff");
fp = xfdopen(child.out, "r");
fp = xfdopen(child->out, "r");
/* Build index info for left and right sides of the diff */
i = 0;
@ -525,7 +525,7 @@ static int run_dir_diff(const char *extcmd, int symlinks, const char *prefix,
fclose(fp);
fp = NULL;
if (finish_command(&child)) {
if (finish_command(child)) {
ret = error("error occurred running diff --raw");
goto finish;
}
@ -719,6 +719,7 @@ int cmd_difftool(int argc, const char **argv, const char *prefix)
OPT_ARGUMENT("no-index", &no_index, N_("passed to `diff`")),
OPT_END()
};
struct child_process child = CHILD_PROCESS_INIT;
git_config(difftool_config, NULL);
symlinks = has_symlinks;
@ -769,6 +770,6 @@ int cmd_difftool(int argc, const char **argv, const char *prefix)
* each file that changed.
*/
if (dir_diff)
return run_dir_diff(extcmd, symlinks, prefix, argc, argv);
return run_dir_diff(extcmd, symlinks, prefix, argc, argv, &child);
return run_file_diff(prompt, prefix, argc, argv);
}