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Diffstat (limited to 'git.c')
-rw-r--r--git.c78
1 files changed, 61 insertions, 17 deletions
diff --git a/git.c b/git.c
index 9efd1a3ec1..5b6c7611be 100644
--- a/git.c
+++ b/git.c
@@ -20,6 +20,43 @@ const char git_more_info_string[] =
static struct startup_info git_startup_info;
static int use_pager = -1;
+static char orig_cwd[PATH_MAX];
+static const char *env_names[] = {
+ GIT_DIR_ENVIRONMENT,
+ GIT_WORK_TREE_ENVIRONMENT,
+ GIT_IMPLICIT_WORK_TREE_ENVIRONMENT,
+ GIT_PREFIX_ENVIRONMENT
+};
+static char *orig_env[4];
+static int saved_environment;
+
+static void save_env(void)
+{
+ int i;
+ if (saved_environment)
+ return;
+ saved_environment = 1;
+ if (!getcwd(orig_cwd, sizeof(orig_cwd)))
+ die_errno("cannot getcwd");
+ for (i = 0; i < ARRAY_SIZE(env_names); i++) {
+ orig_env[i] = getenv(env_names[i]);
+ if (orig_env[i])
+ orig_env[i] = xstrdup(orig_env[i]);
+ }
+}
+
+static void restore_env(void)
+{
+ int i;
+ if (*orig_cwd && chdir(orig_cwd))
+ die_errno("could not move to %s", orig_cwd);
+ for (i = 0; i < ARRAY_SIZE(env_names); i++) {
+ if (orig_env[i])
+ setenv(env_names[i], orig_env[i], 1);
+ else
+ unsetenv(env_names[i]);
+ }
+}
static void commit_pager_choice(void) {
switch (use_pager) {
@@ -54,8 +91,7 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
/*
* Check remaining flags.
*/
- if (starts_with(cmd, "--exec-path")) {
- cmd += 11;
+ if (skip_prefix(cmd, "--exec-path", &cmd)) {
if (*cmd == '=')
git_set_argv_exec_path(cmd + 1);
else {
@@ -92,8 +128,8 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
*envchanged = 1;
(*argv)++;
(*argc)--;
- } else if (starts_with(cmd, "--git-dir=")) {
- setenv(GIT_DIR_ENVIRONMENT, cmd + 10, 1);
+ } else if (skip_prefix(cmd, "--git-dir=", &cmd)) {
+ setenv(GIT_DIR_ENVIRONMENT, cmd, 1);
if (envchanged)
*envchanged = 1;
} else if (!strcmp(cmd, "--namespace")) {
@@ -106,8 +142,8 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
*envchanged = 1;
(*argv)++;
(*argc)--;
- } else if (starts_with(cmd, "--namespace=")) {
- setenv(GIT_NAMESPACE_ENVIRONMENT, cmd + 12, 1);
+ } else if (skip_prefix(cmd, "--namespace=", &cmd)) {
+ setenv(GIT_NAMESPACE_ENVIRONMENT, cmd, 1);
if (envchanged)
*envchanged = 1;
} else if (!strcmp(cmd, "--work-tree")) {
@@ -120,8 +156,8 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
*envchanged = 1;
(*argv)++;
(*argc)--;
- } else if (starts_with(cmd, "--work-tree=")) {
- setenv(GIT_WORK_TREE_ENVIRONMENT, cmd + 12, 1);
+ } else if (skip_prefix(cmd, "--work-tree=", &cmd)) {
+ setenv(GIT_WORK_TREE_ENVIRONMENT, cmd, 1);
if (envchanged)
*envchanged = 1;
} else if (!strcmp(cmd, "--bare")) {
@@ -272,6 +308,7 @@ static int handle_alias(int *argcp, const char ***argv)
* RUN_SETUP for reading from the configuration file.
*/
#define NEED_WORK_TREE (1<<3)
+#define NO_SETUP (1<<4)
struct cmd_struct {
const char *cmd;
@@ -290,7 +327,7 @@ static int run_builtin(struct cmd_struct *p, int argc, const char **argv)
if (!help) {
if (p->option & RUN_SETUP)
prefix = setup_git_directory();
- if (p->option & RUN_SETUP_GENTLY) {
+ else if (p->option & RUN_SETUP_GENTLY) {
int nongit_ok;
prefix = setup_git_directory_gently(&nongit_ok);
}
@@ -352,7 +389,7 @@ static struct cmd_struct commands[] = {
{ "cherry", cmd_cherry, RUN_SETUP },
{ "cherry-pick", cmd_cherry_pick, RUN_SETUP | NEED_WORK_TREE },
{ "clean", cmd_clean, RUN_SETUP | NEED_WORK_TREE },
- { "clone", cmd_clone },
+ { "clone", cmd_clone, NO_SETUP },
{ "column", cmd_column, RUN_SETUP_GENTLY },
{ "commit", cmd_commit, RUN_SETUP | NEED_WORK_TREE },
{ "commit-tree", cmd_commit_tree, RUN_SETUP },
@@ -378,8 +415,8 @@ static struct cmd_struct commands[] = {
{ "hash-object", cmd_hash_object },
{ "help", cmd_help },
{ "index-pack", cmd_index_pack, RUN_SETUP_GENTLY },
- { "init", cmd_init_db },
- { "init-db", cmd_init_db },
+ { "init", cmd_init_db, NO_SETUP },
+ { "init-db", cmd_init_db, NO_SETUP },
{ "log", cmd_log, RUN_SETUP },
{ "ls-files", cmd_ls_files, RUN_SETUP },
{ "ls-remote", cmd_ls_remote, RUN_SETUP_GENTLY },
@@ -441,6 +478,7 @@ static struct cmd_struct commands[] = {
{ "upload-archive", cmd_upload_archive },
{ "upload-archive--writer", cmd_upload_archive_writer },
{ "var", cmd_var, RUN_SETUP_GENTLY },
+ { "verify-commit", cmd_verify_commit, RUN_SETUP },
{ "verify-pack", cmd_verify_pack },
{ "verify-tag", cmd_verify_tag, RUN_SETUP },
{ "version", cmd_version },
@@ -484,6 +522,10 @@ static void handle_builtin(int argc, const char **argv)
struct cmd_struct *p = commands+i;
if (strcmp(p->cmd, cmd))
continue;
+ if (saved_environment && (p->option & NO_SETUP)) {
+ restore_env();
+ break;
+ }
exit(run_builtin(p, argc, argv));
}
}
@@ -539,7 +581,10 @@ static int run_argv(int *argcp, const char ***argv)
* of overriding "git log" with "git show" by having
* alias.log = show
*/
- if (done_alias || !handle_alias(argcp, argv))
+ if (done_alias)
+ break;
+ save_env();
+ if (!handle_alias(argcp, argv))
break;
done_alias = 1;
}
@@ -578,8 +623,7 @@ int main(int argc, char **av)
* So we just directly call the builtin handler, and die if
* that one cannot handle it.
*/
- if (starts_with(cmd, "git-")) {
- cmd += 4;
+ if (skip_prefix(cmd, "git-", &cmd)) {
argv[0] = cmd;
handle_builtin(argc, argv);
die("cannot handle %s as a builtin", cmd);
@@ -590,8 +634,8 @@ int main(int argc, char **av)
argc--;
handle_options(&argv, &argc, NULL);
if (argc > 0) {
- if (starts_with(argv[0], "--"))
- argv[0] += 2;
+ /* translate --help and --version into commands */
+ skip_prefix(argv[0], "--", &argv[0]);
} else {
/* The user didn't specify a command; give them help */
commit_pager_choice();
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-30 23:23:09 +0000