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/* Copyright (c) 2006-2024 Jonas Fonseca <jonas.fonseca@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include "tig/refdb.h"
#include "tig/parse.h"
#include "tig/repo.h"
#include "tig/display.h"
#include "tig/draw.h"
#include "tig/ui.h"
#include "tig/pager.h"
#include "tig/tree.h"
#include "tig/blob.h"
struct blob_state {
char commit[SIZEOF_REF];
const char *file;
};
void
open_blob_view(struct view *prev, enum open_flags flags)
{
struct view *view = &blob_view;
bool in_blob_view = prev == view;
bool has_blob_selection = view->env->blob[0] || view->env->file[0];
if (!in_blob_view && (view->lines || has_blob_selection)) {
if (view->env->goto_lineno > 0)
flags |= OPEN_RELOAD;
open_view(prev, view, flags);
} else {
const char *file = open_file_finder(view->env->commit);
if (file) {
clear_position(&view->pos);
string_ncopy(view->env->file, file, strlen(file));
view->env->blob[0] = 0;
open_view(prev, view, OPEN_RELOAD);
}
}
}
static enum status_code
blob_open(struct view *view, enum open_flags flags)
{
struct blob_state *state = view->private;
static const char *blob_argv[] = {
"git", "cat-file", "blob", "%(blob)", NULL
};
const char **argv = (flags & (OPEN_PREPARED | OPEN_REFRESH)) ? view->argv : blob_argv;
if (argv != blob_argv) {
state->file = get_path(view->env->file);
state->commit[0] = 0;
}
if (!state->file && !view->env->blob[0] && view->env->file[0]) {
const char *commit = view->env->commit[0] && !string_rev_is_null(view->env->commit)
? view->env->commit : "HEAD";
char blob_spec[SIZEOF_STR];
const char *rev_parse_argv[] = {
"git", "rev-parse", blob_spec, NULL
};
if (!string_format(blob_spec, "%s:%s", commit, view->env->file) ||
!io_run_buf(rev_parse_argv, view->env->blob, sizeof(view->env->blob), NULL, false))
return error("Failed to resolve blob from file name");
string_ncopy(state->commit, commit, strlen(commit));
}
if (!state->file && !view->env->blob[0])
return error("No file chosen, press %s to open tree view",
get_view_key(view, REQ_VIEW_TREE));
view->encoding = get_path_encoding(view->env->file, default_encoding);
if (*view->env->file)
string_copy(view->ref, view->env->file);
else
string_copy_rev(view->ref, view->ops->id);
return begin_update(view, NULL, argv, flags);
}
static bool
blob_read(struct view *view, struct buffer *buf, bool force_stop)
{
if (!buf) {
if (view->env->goto_lineno > 0) {
select_view_line(view, view->env->goto_lineno);
view->env->goto_lineno = 0;
}
return true;
}
return pager_common_read(view, buf->data, LINE_DEFAULT, NULL);
}
static void
blob_select(struct view *view, struct line *line)
{
struct blob_state *state = view->private;
const char *text = box_text(line);
if (state->file)
string_format(view->env->file, "%s", state->file);
view->env->lineno = view->pos.lineno + 1;
string_ncopy(view->env->text, text, strlen(text));
}
static enum request
blob_request(struct view *view, enum request request, struct line *line)
{
struct blob_state *state = view->private;
switch (request) {
case REQ_REFRESH:
if (!state->file) {
report("Cannot reload immutable blob");
} else {
string_ncopy(view->env->file, state->file, strlen(state->file));
refresh_view(view);
}
return REQ_NONE;
case REQ_VIEW_BLAME:
string_ncopy(view->env->ref, state->commit, strlen(state->commit));
view->env->goto_lineno = line - view->line;
return request;
case REQ_EDIT:
if (state->file)
open_editor(state->file, (line - view->line) + 1);
else
open_blob_editor(view->vid, basename(view->ref), (line - view->line) + 1);
return REQ_NONE;
default:
return pager_request(view, request, line);
}
}
static struct view_ops blob_ops = {
"line",
argv_env.blob,
VIEW_NO_FLAGS | VIEW_REFRESH,
sizeof(struct blob_state),
blob_open,
blob_read,
view_column_draw,
blob_request,
view_column_grep,
blob_select,
NULL,
view_column_bit(LINE_NUMBER) | view_column_bit(TEXT),
pager_get_column_data,
};
DEFINE_VIEW(blob);
/* vim: set ts=8 sw=8 noexpandtab: */
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