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-rw-r--r--builtin/difftool.c73
1 files changed, 38 insertions, 35 deletions
diff --git a/builtin/difftool.c b/builtin/difftool.c
index bcc79d1888..16eb8b70ea 100644
--- a/builtin/difftool.c
+++ b/builtin/difftool.c
@@ -11,18 +11,19 @@
*
* Copyright (C) 2016 Johannes Schindelin
*/
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
#include "cache.h"
#include "config.h"
#include "builtin.h"
#include "run-command.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
#include "parse-options.h"
#include "argv-array.h"
#include "strbuf.h"
#include "lockfile.h"
+#include "object-store.h"
#include "dir.h"
-static char *diff_gui_tool;
static int trust_exit_code;
static const char *const builtin_difftool_usage[] = {
@@ -32,11 +33,6 @@ static const char *const builtin_difftool_usage[] = {
static int difftool_config(const char *var, const char *value, void *cb)
{
- if (!strcmp(var, "diff.guitool")) {
- diff_gui_tool = xstrdup(value);
- return 0;
- }
-
if (!strcmp(var, "difftool.trustexitcode")) {
trust_exit_code = git_config_bool(var, value);
return 0;
@@ -63,14 +59,12 @@ static int parse_index_info(char *p, int *mode1, int *mode2,
*mode2 = (int)strtol(p + 1, &p, 8);
if (*p != ' ')
return error("expected ' ', got '%c'", *p);
- if (get_oid_hex(++p, oid1))
- return error("expected object ID, got '%s'", p + 1);
- p += GIT_SHA1_HEXSZ;
+ if (parse_oid_hex(++p, oid1, (const char **)&p))
+ return error("expected object ID, got '%s'", p);
if (*p != ' ')
return error("expected ' ', got '%c'", *p);
- if (get_oid_hex(++p, oid2))
- return error("expected object ID, got '%s'", p + 1);
- p += GIT_SHA1_HEXSZ;
+ if (parse_oid_hex(++p, oid2, (const char **)&p))
+ return error("expected object ID, got '%s'", p);
if (*p != ' ')
return error("expected ' ', got '%c'", *p);
*status = *++p;
@@ -111,11 +105,11 @@ static int use_wt_file(const char *workdir, const char *name,
int fd = open(buf.buf, O_RDONLY);
if (fd >= 0 &&
- !index_fd(&wt_oid, fd, &st, OBJ_BLOB, name, 0)) {
+ !index_fd(&the_index, &wt_oid, fd, &st, OBJ_BLOB, name, 0)) {
if (is_null_oid(oid)) {
oidcpy(oid, &wt_oid);
use = 1;
- } else if (!oidcmp(oid, &wt_oid))
+ } else if (oideq(oid, &wt_oid))
use = 1;
}
}
@@ -306,7 +300,7 @@ static char *get_symlink(const struct object_id *oid, const char *path)
} else {
enum object_type type;
unsigned long size;
- data = read_sha1_file(oid->hash, &type, &size);
+ data = read_object_file(oid, &type, &size);
if (!data)
die(_("could not read object %s for symlink %s"),
oid_to_hex(oid), path);
@@ -321,10 +315,10 @@ static int checkout_path(unsigned mode, struct object_id *oid,
struct cache_entry *ce;
int ret;
- ce = make_cache_entry(mode, oid->hash, path, 0, 0);
- ret = checkout_entry(ce, state, NULL);
+ ce = make_transient_cache_entry(mode, oid, path, 0);
+ ret = checkout_entry(ce, state, NULL, NULL);
- free(ce);
+ discard_cache_entry(ce);
return ret;
}
@@ -437,7 +431,7 @@ static int run_dir_diff(const char *extcmd, int symlinks, const char *prefix,
strbuf_reset(&buf);
strbuf_addf(&buf, "Subproject commit %s",
oid_to_hex(&roid));
- if (!oidcmp(&loid, &roid))
+ if (oideq(&loid, &roid))
strbuf_addstr(&buf, "-dirty");
add_left_or_right(&submodules, dst_path, buf.buf, 1);
continue;
@@ -488,7 +482,7 @@ static int run_dir_diff(const char *extcmd, int symlinks, const char *prefix,
* index.
*/
struct cache_entry *ce2 =
- make_cache_entry(rmode, roid.hash,
+ make_cache_entry(&wtindex, rmode, &roid,
dst_path, 0, 0);
add_index_entry(&wtindex, ce2,
@@ -610,7 +604,7 @@ static int run_dir_diff(const char *extcmd, int symlinks, const char *prefix,
continue;
if (!indices_loaded) {
- static struct lock_file lock;
+ struct lock_file lock = LOCK_INIT;
strbuf_reset(&buf);
strbuf_addf(&buf, "%s/wtindex", tmpdir);
if (hold_lock_file_for_update(&lock, buf.buf, 0) < 0 ||
@@ -688,22 +682,21 @@ static int run_file_diff(int prompt, const char *prefix,
int cmd_difftool(int argc, const char **argv, const char *prefix)
{
int use_gui_tool = 0, dir_diff = 0, prompt = -1, symlinks = 0,
- tool_help = 0;
+ tool_help = 0, no_index = 0;
static char *difftool_cmd = NULL, *extcmd = NULL;
struct option builtin_difftool_options[] = {
OPT_BOOL('g', "gui", &use_gui_tool,
N_("use `diff.guitool` instead of `diff.tool`")),
OPT_BOOL('d', "dir-diff", &dir_diff,
N_("perform a full-directory diff")),
- { OPTION_SET_INT, 'y', "no-prompt", &prompt, NULL,
+ OPT_SET_INT_F('y', "no-prompt", &prompt,
N_("do not prompt before launching a diff tool"),
- PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, 0},
- { OPTION_SET_INT, 0, "prompt", &prompt, NULL, NULL,
- PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_HIDDEN,
- NULL, 1 },
+ 0, PARSE_OPT_NONEG),
+ OPT_SET_INT_F(0, "prompt", &prompt, NULL,
+ 1, PARSE_OPT_NONEG | PARSE_OPT_HIDDEN),
OPT_BOOL(0, "symlinks", &symlinks,
N_("use symlinks in dir-diff mode")),
- OPT_STRING('t', "tool", &difftool_cmd, N_("<tool>"),
+ OPT_STRING('t', "tool", &difftool_cmd, N_("tool"),
N_("use the specified diff tool")),
OPT_BOOL(0, "tool-help", &tool_help,
N_("print a list of diff tools that may be used with "
@@ -711,8 +704,9 @@ int cmd_difftool(int argc, const char **argv, const char *prefix)
OPT_BOOL(0, "trust-exit-code", &trust_exit_code,
N_("make 'git-difftool' exit when an invoked diff "
"tool returns a non - zero exit code")),
- OPT_STRING('x', "extcmd", &extcmd, N_("<command>"),
+ OPT_STRING('x', "extcmd", &extcmd, N_("command"),
N_("specify a custom command for viewing diffs")),
+ OPT_ARGUMENT("no-index", &no_index, N_("passed to `diff`")),
OPT_END()
};
@@ -726,12 +720,21 @@ int cmd_difftool(int argc, const char **argv, const char *prefix)
if (tool_help)
return print_tool_help();
- /* NEEDSWORK: once we no longer spawn anything, remove this */
- setenv(GIT_DIR_ENVIRONMENT, absolute_path(get_git_dir()), 1);
- setenv(GIT_WORK_TREE_ENVIRONMENT, absolute_path(get_git_work_tree()), 1);
+ if (!no_index && !startup_info->have_repository)
+ die(_("difftool requires worktree or --no-index"));
+
+ if (!no_index){
+ setup_work_tree();
+ setenv(GIT_DIR_ENVIRONMENT, absolute_path(get_git_dir()), 1);
+ setenv(GIT_WORK_TREE_ENVIRONMENT, absolute_path(get_git_work_tree()), 1);
+ } else if (dir_diff)
+ die(_("--dir-diff is incompatible with --no-index"));
+
+ if (use_gui_tool + !!difftool_cmd + !!extcmd > 1)
+ die(_("--gui, --tool and --extcmd are mutually exclusive"));
- if (use_gui_tool && diff_gui_tool && *diff_gui_tool)
- setenv("GIT_DIFF_TOOL", diff_gui_tool, 1);
+ if (use_gui_tool)
+ setenv("GIT_MERGETOOL_GUI", "true", 1);
else if (difftool_cmd) {
if (*difftool_cmd)
setenv("GIT_DIFF_TOOL", difftool_cmd, 1);