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index 46f289ec1335debbcff6bc0ba014455bf7d06c77..3121a3a3847e9ab2deb45a5d27ec6c2990d7af2f 100644 (file)
--- a/tig.c
+++ b/tig.c
static void foreach_ref(bool (*visitor)(void *data, const struct ref *ref), void *data);
static int load_refs(void);
-enum format_flags {
- FORMAT_ALL, /* Perform replacement in all arguments. */
- FORMAT_NONE /* No replacement should be performed. */
-};
-
-static bool format_argv(const char *dst[], const char *src[], enum format_flags flags);
-
enum input_status {
INPUT_OK,
INPUT_SKIP,
for (argc = 0; argv[argc]; argc++)
free((void *) argv[argc]);
+ argv[0] = NULL;
}
-static void
-argv_copy(const char *dst[], const char *src[])
+static bool
+argv_copy(const char *dst[], const char *src[], bool allocate)
{
int argc;
for (argc = 0; src[argc]; argc++)
- dst[argc] = src[argc];
+ if (!(dst[argc] = allocate ? strdup(src[argc]) : src[argc]))
+ return FALSE;
+ return TRUE;
}
};
struct io {
- enum io_type type; /* The requested type of pipe. */
- const char *dir; /* Directory from which to execute. */
pid_t pid; /* PID of spawned process. */
int pipe; /* Pipe end for reading or writing. */
int error; /* Error status. */
- const char *argv[SIZEOF_ARG]; /* Shell command arguments. */
char *buf; /* Read buffer. */
size_t bufalloc; /* Allocated buffer size. */
size_t bufsize; /* Buffer content size. */
}
static void
-io_init(struct io *io, const char *dir, enum io_type type)
+io_init(struct io *io)
{
io_reset(io);
- io->type = type;
- io->dir = dir;
-}
-
-static void
-io_prepare(struct io *io, const char *dir, enum io_type type, const char *argv[])
-{
- io_init(io, dir, type);
- argv_copy(io->argv, argv);
-}
-
-static bool
-io_format(struct io *io, const char *dir, enum io_type type,
- const char *argv[], enum format_flags flags)
-{
- io_init(io, dir, type);
- return format_argv(io->argv, argv, flags);
}
static bool
bool fits;
va_list args;
- io_init(io, NULL, IO_FD);
+ io_init(io);
va_start(args, fmt);
fits = vsnprintf(name, sizeof(name), fmt, args) < sizeof(name);
}
static bool
-io_start(struct io *io)
+io_start(struct io *io, enum io_type type, const char *dir, const char *argv[])
{
int pipefds[2] = { -1, -1 };
- if (io->type == IO_FD)
- return TRUE;
-
- if ((io->type == IO_RD || io->type == IO_WR) && pipe(pipefds) < 0) {
+ if ((type == IO_RD || type == IO_WR) && pipe(pipefds) < 0) {
io->error = errno;
return FALSE;
- } else if (io->type == IO_AP) {
+ } else if (type == IO_AP) {
pipefds[1] = io->pipe;
}
if ((io->pid = fork())) {
if (io->pid == -1)
io->error = errno;
- if (pipefds[!(io->type == IO_WR)] != -1)
- close(pipefds[!(io->type == IO_WR)]);
+ if (pipefds[!(type == IO_WR)] != -1)
+ close(pipefds[!(type == IO_WR)]);
if (io->pid != -1) {
- io->pipe = pipefds[!!(io->type == IO_WR)];
+ io->pipe = pipefds[!!(type == IO_WR)];
return TRUE;
}
} else {
- if (io->type != IO_FG) {
+ if (type != IO_FG) {
int devnull = open("/dev/null", O_RDWR);
- int readfd = io->type == IO_WR ? pipefds[0] : devnull;
- int writefd = (io->type == IO_RD || io->type == IO_AP)
+ int readfd = type == IO_WR ? pipefds[0] : devnull;
+ int writefd = (type == IO_RD || type == IO_AP)
? pipefds[1] : devnull;
dup2(readfd, STDIN_FILENO);
close(pipefds[1]);
}
- if (io->dir && *io->dir && chdir(io->dir) == -1)
+ if (dir && *dir && chdir(dir) == -1)
exit(errno);
- execvp(io->argv[0], (char *const*) io->argv);
+ execvp(argv[0], (char *const*) argv);
exit(errno);
}
- if (pipefds[!!(io->type == IO_WR)] != -1)
- close(pipefds[!!(io->type == IO_WR)]);
+ if (pipefds[!!(type == IO_WR)] != -1)
+ close(pipefds[!!(type == IO_WR)]);
return FALSE;
}
static bool
io_run(struct io *io, const char **argv, const char *dir, enum io_type type)
{
- io_prepare(io, dir, type, argv);
- return io_start(io);
+ io_init(io);
+ return io_start(io, type, dir, argv);
}
-static int
-io_complete(struct io *io)
-{
- return io_start(io) && io_done(io);
-}
-
-static int
-io_run_bg(const char **argv)
+static bool
+io_complete(enum io_type type, const char **argv, const char *dir, int fd)
{
struct io io = {};
- io_prepare(&io, NULL, IO_BG, argv);
- return io_complete(&io);
+ io_init(&io);
+ io.pipe = fd;
+ return io_start(&io, type, dir, argv) && io_done(&io);
}
static bool
-io_run_fg(const char **argv, const char *dir)
+io_run_bg(const char **argv)
{
- struct io io = {};
-
- io_prepare(&io, dir, IO_FG, argv);
- return io_complete(&io);
+ return io_complete(IO_BG, argv, NULL, -1);
}
static bool
-io_run_append(const char **argv, int fd)
+io_run_fg(const char **argv, const char *dir)
{
- struct io io = {};
-
- io_prepare(&io, NULL, IO_AP, argv);
- io.pipe = fd;
- return io_complete(&io);
+ return io_complete(IO_FG, argv, dir, -1);
}
static bool
-io_run_rd(struct io *io, const char **argv, const char *dir)
+io_run_append(const char **argv, int fd)
{
- return io_format(io, dir, IO_RD, argv, FORMAT_NONE) && io_start(io);
+ return io_complete(IO_AP, argv, NULL, -1);
}
static bool
{
struct io io = {};
- io_prepare(&io, NULL, IO_RD, argv);
- return io_start(&io) && io_read_buf(&io, buf, bufsize);
+ io_init(&io);
+ return io_start(&io, IO_RD, NULL, argv) && io_read_buf(&io, buf, bufsize);
}
static int
char *name;
int state = OK;
- if (!io_start(io))
- return ERR;
-
while (state == OK && (name = io_get(io, '\n', TRUE))) {
char *value;
size_t namelen;
{
struct io io = {};
- io_prepare(&io, NULL, IO_RD, argv);
+ io_init(&io);
+ if (!io_start(&io, IO_RD, NULL, argv))
+ return ERR;
return io_load(&io, separators, read_property);
}
req->key = key;
req->argv[0] = NULL;
- if (!format_argv(req->argv, argv, FORMAT_NONE))
+ if (!argv_copy(req->argv, argv, TRUE))
return REQ_NONE;
return REQ_NONE + ++run_requests;
bool has_scrolled; /* View was scrolled. */
/* Loading */
+ const char *argv[SIZEOF_ARG]; /* Shell command arguments. */
+ const char *dir; /* Directory from which to execute. */
struct io io;
struct io *pipe;
time_t start_time;
}
static bool
-format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
+format_argv(const char *dst_argv[], const char *src_argv[], bool replace)
{
char buf[SIZEOF_STR];
int argc;
- bool noreplace = flags == FORMAT_NONE;
argv_free(dst_argv);
@@ -3213,7 +3174,7 @@ format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags fl
int len = next - arg;
const char *value;
- if (!next || noreplace) {
+ if (!next || !replace) {
len = strlen(arg);
value = "";
@@ -3228,7 +3189,7 @@ format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags fl
if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
return FALSE;
- arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
+ arg = next && replace ? strchr(next, ')') + 1 : NULL;
}
dst_argv[argc] = strdup(buf);
view->start_time = time(NULL);
}
+static bool
+prepare_io(struct view *view, const char *dir, const char *argv[], bool replace)
+{
+ io_init(&view->io);
+ view->dir = dir;
+ return format_argv(view->argv, argv, replace);
+}
+
static bool
prepare_update(struct view *view, const char *argv[], const char *dir)
{
if (view->pipe)
end_update(view, TRUE);
- return io_format(&view->io, dir, IO_RD, argv, FORMAT_NONE);
+ return prepare_io(view, dir, argv, FALSE);
+}
+
+static bool
+start_update(struct view *view, const char **argv, const char *dir)
+{
+ if (view->pipe)
+ io_done(view->pipe);
+ return prepare_io(view, dir, argv, FALSE) &&
+ io_start(&view->io, IO_RD, dir, view->argv);
}
static bool
{
if (view->pipe)
end_update(view, TRUE);
+ argv_free(view->argv);
return io_open(&view->io, "%s/%s", opt_cdup[0] ? opt_cdup : ".", name);
}
if (view->ops->prepare) {
if (!view->ops->prepare(view))
return FALSE;
- } else if (!io_format(&view->io, NULL, IO_RD, view->ops->argv, FORMAT_ALL)) {
+ } else if (!prepare_io(view, NULL, view->ops->argv, TRUE)) {
return FALSE;
}
string_copy_rev(view->ref, view->id);
}
- if (!io_start(&view->io))
+ if (view->argv[0] && !io_start(&view->io, IO_RD, view->dir, view->argv))
return FALSE;
setup_update(view, view->id);
return;
}
- if (format_argv(argv, req->argv, FORMAT_ALL))
+ if (format_argv(argv, req->argv, TRUE))
open_external_viewer(argv, NULL);
argv_free(argv);
}
"git", "log", "--no-color", "--pretty=raw",
"--cc", "--raw", view->id, "--", path, NULL
};
- struct io io = {};
if (!view->lines) {
tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL);
return TRUE;
}
- if (!io_run_rd(&io, log_file, opt_cdup)) {
+ if (!start_update(view, log_file, opt_cdup)) {
report("Failed to load tree data");
return TRUE;
}
- io_done(view->pipe);
- view->io = io;
*read_date = TRUE;
return FALSE;
opt_path[0] = 0;
}
- return io_format(&view->io, opt_cdup, IO_RD, view->ops->argv, FORMAT_ALL);
+ return prepare_io(view, opt_cdup, view->ops->argv, TRUE);
}
static const char *tree_argv[SIZEOF_ARG] = {
};
if (!string_format(path, "%s:%s", opt_ref, opt_file) ||
- !io_run_rd(&view->io, blame_cat_file_argv, opt_cdup))
+ !start_update(view, blame_cat_file_argv, opt_cdup))
return FALSE;
}
"git", "blame", "--incremental",
*opt_ref ? opt_ref : "--incremental", "--", opt_file, NULL
};
- struct io io = {};
if (view->lines == 0 && !view->prev)
die("No blame exist for %s", view->vid);
- if (view->lines == 0 || !io_run_rd(&io, blame_argv, opt_cdup)) {
+ if (view->lines == 0 || !start_update(view, blame_argv, opt_cdup)) {
report("Failed to load blame data");
return TRUE;
}
- io_done(view->pipe);
- view->io = io;
*read_file = FALSE;
return FALSE;
"--simplify-by-decoration", "--all", NULL
};
- if (!io_run_rd(&view->io, branch_log, NULL)) {
+ if (!start_update(view, branch_log, NULL)) {
report("Failed to load branch data");
return TRUE;
}