pager: stop using the_repository

Stop using `the_repository` in the "pager" subsystem by passing in a
repository when setting up the pager and when configuring it.

Adjust callers accordingly by using `the_repository`. While there may be
some callers that have a repository available in their context, this
trivial conversion allows for easier verification and bubbles up the use
of `the_repository` by one level.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

add-patch.c

@@ -1464,7 +1464,7 @@ static int patch_update_file(struct add_p_state *s,
 		if (file_diff->hunk_nr) {
 			if (rendered_hunk_index != hunk_index) {
 				if (use_pager) {
-					setup_pager();
+					setup_pager(the_repository);
 					sigchain_push(SIGPIPE, SIG_IGN);
 				}
 				render_hunk(s, hunk, 0, colored, &s->buf);

builtin/am.c

@@ -1786,7 +1786,7 @@ static int do_interactive(struct am_state *state)
 			}
 			strbuf_release(&msg);
 		} else if (*reply == 'v' || *reply == 'V') {
-			const char *pager = git_pager(1);
+			const char *pager = git_pager(the_repository, 1);
 			struct child_process cp = CHILD_PROCESS_INIT;
 
 			if (!pager)
@@ -2246,7 +2246,7 @@ static int show_patch(struct am_state *state, enum resume_type resume_mode)
 	if (len < 0)
 		die_errno(_("failed to read '%s'"), patch_path);
 
-	setup_pager();
+	setup_pager(the_repository);
 	write_in_full(1, sb.buf, sb.len);
 	strbuf_release(&sb);
 	return 0;

builtin/blame.c

@@ -1202,7 +1202,7 @@ parse_done:
 	stop_progress(&pi.progress);
 
 	if (!incremental)
-		setup_pager();
+		setup_pager(the_repository);
 	else
 		goto cleanup;
 

builtin/grep.c

@@ -1084,7 +1084,7 @@ int cmd_grep(int argc,
 	}
 
 	if (show_in_pager == default_pager)
-		show_in_pager = git_pager(1);
+		show_in_pager = git_pager(the_repository, 1);
 	if (show_in_pager) {
 		opt.color = 0;
 		opt.name_only = 1;
@@ -1246,7 +1246,7 @@ int cmd_grep(int argc,
 	}
 
 	if (!show_in_pager && !opt.status_only)
-		setup_pager();
+		setup_pager(the_repository);
 
 	die_for_incompatible_opt3(!use_index, "--no-index",
 				  untracked, "--untracked",

builtin/help.c

@@ -658,7 +658,7 @@ int cmd_help(int argc,
 	case HELP_ACTION_ALL:
 		opt_mode_usage(argc, "--all", help_format);
 		if (verbose) {
-			setup_pager();
+			setup_pager(the_repository);
 			list_all_cmds_help(show_external_commands,
 					   show_aliases);
 			return 0;
@@ -692,7 +692,7 @@ int cmd_help(int argc,
 		return 0;
 	case HELP_ACTION_CONFIG:
 		opt_mode_usage(argc, "--config", help_format);
-		setup_pager();
+		setup_pager(the_repository);
 		list_config_help(SHOW_CONFIG_HUMAN);
 		printf("\n%s\n", _("'git help config' for more information"));
 		return 0;

builtin/log.c

@@ -369,7 +369,7 @@ static void cmd_log_init_finish(int argc, const char **argv, const char *prefix,
 	if (rev->line_level_traverse)
 		line_log_init(rev, line_cb.prefix, &line_cb.args);
 
-	setup_pager();
+	setup_pager(the_repository);
 }
 
 static void cmd_log_init(int argc, const char **argv, const char *prefix,
@@ -2292,7 +2292,7 @@ int cmd_format_patch(int argc,
 		rev.commit_format = CMIT_FMT_MBOXRD;
 
 	if (use_stdout) {
-		setup_pager();
+		setup_pager(the_repository);
 	} else if (!rev.diffopt.close_file) {
 		int saved;
 

builtin/var.c

@@ -42,7 +42,7 @@ static char *sequence_editor(int ident_flag UNUSED)
 
 static char *pager(int ident_flag UNUSED)
 {
-	const char *pgm = git_pager(1);
+	const char *pgm = git_pager(the_repository, 1);
 
 	if (!pgm)
 		pgm = "cat";

diff.c

@@ -7386,6 +7386,6 @@ void setup_diff_pager(struct diff_options *opt)
 	 * --exit-code" in hooks and other scripts, we do not do so.
 	 */
 	if (!opt->flags.exit_with_status &&
-	    check_pager_config("diff") != 0)
-		setup_pager();
+	    check_pager_config(the_repository, "diff") != 0)
+		setup_pager(the_repository);
 }

git.c

@@ -125,7 +125,7 @@ static void commit_pager_choice(void)
 		setenv("GIT_PAGER", "cat", 1);
 		break;
 	case 1:
-		setup_pager();
+		setup_pager(the_repository);
 		break;
 	default:
 		break;
@@ -136,7 +136,7 @@ void setup_auto_pager(const char *cmd, int def)
 {
 	if (use_pager != -1 || pager_in_use())
 		return;
-	use_pager = check_pager_config(cmd);
+	use_pager = check_pager_config(the_repository, cmd);
 	if (use_pager == -1)
 		use_pager = def;
 	commit_pager_choice();
@@ -462,7 +462,7 @@ static int run_builtin(struct cmd_struct *p, int argc, const char **argv, struct
 	precompose_argv_prefix(argc, argv, NULL);
 	if (use_pager == -1 && run_setup &&
 		!(p->option & DELAY_PAGER_CONFIG))
-		use_pager = check_pager_config(p->cmd);
+		use_pager = check_pager_config(the_repository, p->cmd);
 	if (use_pager == -1 && p->option & USE_PAGER)
 		use_pager = 1;
 	if (run_setup && startup_info->have_repository)
@@ -750,7 +750,7 @@ static void execv_dashed_external(const char **argv)
 	int status;
 
 	if (use_pager == -1 && !is_builtin(argv[0]))
-		use_pager = check_pager_config(argv[0]);
+		use_pager = check_pager_config(the_repository, argv[0]);
 	commit_pager_choice();
 
 	strvec_pushf(&cmd.args, "git-%s", argv[0]);

pager.c

@@ -1,5 +1,3 @@
-#define USE_THE_REPOSITORY_VARIABLE
-
 #include "git-compat-util.h"
 #include "config.h"
 #include "editor.h"
@@ -84,7 +82,7 @@ static int core_pager_config(const char *var, const char *value,
 	return 0;
 }
 
-const char *git_pager(int stdout_is_tty)
+const char *git_pager(struct repository *r, int stdout_is_tty)
 {
 	const char *pager;
 
@@ -94,7 +92,7 @@ const char *git_pager(int stdout_is_tty)
 	pager = getenv("GIT_PAGER");
 	if (!pager) {
 		if (!pager_program)
-			read_early_config(the_repository,
+			read_early_config(r,
 					  core_pager_config, NULL);
 		pager = pager_program;
 	}
@@ -143,10 +141,10 @@ void prepare_pager_args(struct child_process *pager_process, const char *pager)
 	pager_process->trace2_child_class = "pager";
 }
 
-void setup_pager(void)
+void setup_pager(struct repository *r)
 {
 	static int once = 0;
-	const char *pager = git_pager(isatty(1));
+	const char *pager = git_pager(r, isatty(1));
 
 	if (!pager)
 		return;
@@ -293,7 +291,7 @@ static int pager_command_config(const char *var, const char *value,
 }
 
 /* returns 0 for "no pager", 1 for "use pager", and -1 for "not specified" */
-int check_pager_config(const char *cmd)
+int check_pager_config(struct repository *r, const char *cmd)
 {
 	struct pager_command_config_data data;
 
@@ -301,7 +299,7 @@ int check_pager_config(const char *cmd)
 	data.want = -1;
 	data.value = NULL;
 
-	read_early_config(the_repository, pager_command_config, &data);
+	read_early_config(r, pager_command_config, &data);
 
 	if (data.value)
 		pager_program = data.value;

pager.h

@@ -2,15 +2,16 @@
 #define PAGER_H
 
 struct child_process;
+struct repository;
 
-const char *git_pager(int stdout_is_tty);
-void setup_pager(void);
+const char *git_pager(struct repository *r, int stdout_is_tty);
+void setup_pager(struct repository *r);
 void wait_for_pager(void);
 int pager_in_use(void);
 int term_columns(void);
 void term_clear_line(void);
 int decimal_width(uintmax_t);
-int check_pager_config(const char *cmd);
+int check_pager_config(struct repository *r, const char *cmd);
 void prepare_pager_args(struct child_process *, const char *pager);
 
 extern int pager_use_color;