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/* Copyright (c) 2006-2010 Jonas Fonseca <fonseca@diku.dk>
*
* 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.
*
* Example usage:
*
* # git log --pretty=raw --parents | ./test-graph
* # git log --pretty=raw --parents | ./test-graph --ascii
*/
#include "tig.h"
#include "io.h"
#include "graph.h"
static void __NORETURN
die(const char *err, ...)
{
va_list args;
endwin();
va_start(args, err);
fputs("tig: ", stderr);
vfprintf(stderr, err, args);
fputs("\n", stderr);
va_end(args);
exit(1);
}
struct commit {
char id[SIZEOF_REV];
struct graph_canvas canvas;
};
DEFINE_ALLOCATOR(realloc_commits, struct commit *, 8)
int
main(int argc, const char *argv[])
{
struct graph graph = { };
struct io io = { };
char *line;
struct commit **commits = NULL;
size_t ncommits = 0;
struct commit *commit = NULL;
bool is_boundary;
const char *(*graph_fn)(struct graph_symbol *) = graph_symbol_to_utf8;
if (argc > 1 && !strcmp(argv[1], "--ascii"))
graph_fn = graph_symbol_to_ascii;
if (!io_open(&io, ""))
die("IO");
while (!io_eof(&io)) {
bool can_read = io_can_read(&io, TRUE);
for (; (line = io_get(&io, '\n', can_read)); can_read = FALSE) {
if (!prefixcmp(line, "commit ")) {
line += STRING_SIZE("commit ");
is_boundary = *line == '-';
if (is_boundary)
line++;
if (!realloc_commits(&commits, ncommits, 1))
die("Commits");
commit = calloc(1, sizeof(*commit));
if (!commit)
die("Commit");
commits[ncommits++] = commit;
string_copy_rev(commit->id, line);
graph_add_commit(&graph, &commit->canvas, commit->id, line, is_boundary);
graph_render_parents(&graph);
} else if (!prefixcmp(line, " ")) {
int i;
if (!commit)
continue;
for (i = 0; i < commit->canvas.size; i++) {
struct graph_symbol *symbol = &commit->canvas.symbols[i];
const char *chars = graph_fn(symbol);
printf("%s", chars + (i == 0));
}
printf("%s\n", line + 3);
commit = NULL;
}
}
}
return 0;
}
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