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difftool: use "env_array" to simplify memory management

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Amend code added in 03831ef7b5 (difftool: implement the functionality
in the builtin, 2017-01-19) to use the "env_array" in the
run_command.[ch] API. Now we no longer need to manage our own
"index_env" buffer.

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 2021-11-25 23:52:23 +01:00 committed by Junio C Hamano
parent d3b2159712
commit 26a15355d6
1 changed files with 4 additions and 10 deletions
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14
builtin/difftool.c
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@ -202,15 +202,10 @@ static void changed_files(struct hashmap *result, const char *index_path,
{
struct child_process update_index = CHILD_PROCESS_INIT;
struct child_process diff_files = CHILD_PROCESS_INIT;
struct strbuf index_env = STRBUF_INIT, buf = STRBUF_INIT;
const char *git_dir = absolute_path(get_git_dir()), *env[] = {
NULL, NULL
};
struct strbuf buf = STRBUF_INIT;
const char *git_dir = absolute_path(get_git_dir());
FILE *fp;
strbuf_addf(&index_env, "GIT_INDEX_FILE=%s", index_path);
env[0] = index_env.buf;
strvec_pushl(&update_index.args,
"--git-dir", git_dir, "--work-tree", workdir,
"update-index", "--really-refresh", "-q",
@ -222,7 +217,7 @@ static void changed_files(struct hashmap *result, const char *index_path,
update_index.use_shell = 0;
update_index.clean_on_exit = 1;
update_index.dir = workdir;
update_index.env = env;
strvec_pushf(&update_index.env_array, "GIT_INDEX_FILE=%s", index_path);
/* Ignore any errors of update-index */
run_command(&update_index);
@ -235,7 +230,7 @@ static void changed_files(struct hashmap *result, const char *index_path,
diff_files.clean_on_exit = 1;
diff_files.out = -1;
diff_files.dir = workdir;
diff_files.env = env;
strvec_pushf(&diff_files.env_array, "GIT_INDEX_FILE=%s", index_path);
if (start_command(&diff_files))
die("could not obtain raw diff");
fp = xfdopen(diff_files.out, "r");
@ -248,7 +243,6 @@ static void changed_files(struct hashmap *result, const char *index_path,
fclose(fp);
if (finish_command(&diff_files))
die("diff-files did not exit properly");
strbuf_release(&index_env);
strbuf_release(&buf);
}