*/
#include <sys/types.h>
#include <sys/stat.h>
+#include <sys/wait.h>
#include <unistd.h>
#include <fcntl.h>
-#include <limits.h>
#include "all.h"
+static pid_t configerror_pid = -1;
+
static Match current_match;
typedef struct yy_buffer_state *YY_BUFFER_STATE;
extern int yylex(struct context *context);
extern int yyparse(void);
+extern int yylex_destroy(void);
extern FILE *yyin;
YY_BUFFER_STATE yy_scan_string(const char *);
//int yydebug = 1;
void yyerror(const char *error_message) {
+ context->has_errors = true;
+
ELOG("\n");
ELOG("CONFIG: %s\n", error_message);
ELOG("CONFIG: in file \"%s\", line %d:\n",
context->filename, context->line_number);
ELOG("CONFIG: %s\n", context->line_copy);
- ELOG("CONFIG: ");
+ char buffer[context->last_column+1];
+ buffer[context->last_column] = '\0';
for (int c = 1; c <= context->last_column; c++)
- if (c >= context->first_column)
- printf("^");
- else printf(" ");
- printf("\n");
+ buffer[c-1] = (c >= context->first_column ? '^' : ' ');
+ ELOG("CONFIG: %s\n", buffer);
ELOG("\n");
}
return 1;
}
+/*
+ * Goes through each line of buf (separated by \n) and checks for statements /
+ * commands which only occur in i3 v4 configuration files. If it finds any, it
+ * returns version 4, otherwise it returns version 3.
+ *
+ */
+static int detect_version(char *buf) {
+ char *walk = buf;
+ char *line = buf;
+ while (*walk != '\0') {
+ if (*walk != '\n') {
+ walk++;
+ continue;
+ }
+
+ /* check for some v4-only statements */
+ if (strncasecmp(line, "bindcode", strlen("bindcode")) == 0 ||
+ strncasecmp(line, "force_focus_wrapping", strlen("force_focus_wrapping")) == 0 ||
+ strncasecmp(line, "# i3 config file (v4)", strlen("# i3 config file (v4)")) == 0 ||
+ strncasecmp(line, "workspace_layout", strlen("workspace_layout")) == 0) {
+ printf("deciding for version 4 due to this line: %.*s\n", (int)(walk-line), line);
+ return 4;
+ }
+
+ /* if this is a bind statement, we can check the command */
+ if (strncasecmp(line, "bind", strlen("bind")) == 0) {
+ char *bind = strchr(line, ' ');
+ if (bind == NULL)
+ goto next;
+ while ((*bind == ' ' || *bind == '\t') && *bind != '\0')
+ bind++;
+ if (*bind == '\0')
+ goto next;
+ if ((bind = strchr(bind, ' ')) == NULL)
+ goto next;
+ while ((*bind == ' ' || *bind == '\t') && *bind != '\0')
+ bind++;
+ if (*bind == '\0')
+ goto next;
+ if (strncasecmp(bind, "layout", strlen("layout")) == 0 ||
+ strncasecmp(bind, "floating", strlen("floating")) == 0 ||
+ strncasecmp(bind, "workspace", strlen("workspace")) == 0 ||
+ strncasecmp(bind, "focus left", strlen("focus left")) == 0 ||
+ strncasecmp(bind, "focus right", strlen("focus right")) == 0 ||
+ strncasecmp(bind, "focus up", strlen("focus up")) == 0 ||
+ strncasecmp(bind, "focus down", strlen("focus down")) == 0 ||
+ strncasecmp(bind, "border normal", strlen("border normal")) == 0 ||
+ strncasecmp(bind, "border 1pixel", strlen("border 1pixel")) == 0 ||
+ strncasecmp(bind, "border borderless", strlen("border borderless")) == 0) {
+ printf("deciding for version 4 due to this line: %.*s\n", (int)(walk-line), line);
+ return 4;
+ }
+ }
+
+next:
+ /* advance to the next line */
+ walk++;
+ line = walk;
+ }
+
+ return 3;
+}
+
+/*
+ * Calls i3-migrate-config-to-v4 to migrate a configuration file (input
+ * buffer).
+ *
+ * Returns the converted config file or NULL if there was an error (for
+ * example the script could not be found in $PATH or the i3 executable’s
+ * directory).
+ *
+ */
+static char *migrate_config(char *input, off_t size) {
+ int writepipe[2];
+ int readpipe[2];
+
+ if (pipe(writepipe) != 0 ||
+ pipe(readpipe) != 0) {
+ warn("migrate_config: Could not create pipes");
+ return NULL;
+ }
+
+ pid_t pid = fork();
+ if (pid == -1) {
+ warn("Could not fork()");
+ return NULL;
+ }
+
+ /* child */
+ if (pid == 0) {
+ /* close writing end of writepipe, connect reading side to stdin */
+ close(writepipe[1]);
+ dup2(writepipe[0], 0);
+
+ /* close reading end of readpipe, connect writing side to stdout */
+ close(readpipe[0]);
+ dup2(readpipe[1], 1);
+
+ static char *argv[] = {
+ NULL, /* will be replaced by the executable path */
+ NULL
+ };
+ exec_i3_utility("i3-migrate-config-to-v4", argv);
+ }
+
+ /* parent */
+
+ /* close reading end of the writepipe (connected to the script’s stdin) */
+ close(writepipe[0]);
+
+ /* write the whole config file to the pipe, the script will read everything
+ * immediately */
+ int written = 0;
+ int ret;
+ while (written < size) {
+ if ((ret = write(writepipe[1], input + written, size - written)) < 0) {
+ warn("Could not write to pipe");
+ return NULL;
+ }
+ written += ret;
+ }
+ close(writepipe[1]);
+
+ /* close writing end of the readpipe (connected to the script’s stdout) */
+ close(readpipe[1]);
+
+ /* read the script’s output */
+ int conv_size = 65535;
+ char *converted = malloc(conv_size);
+ int read_bytes = 0;
+ do {
+ if (read_bytes == conv_size) {
+ conv_size += 65535;
+ converted = realloc(converted, conv_size);
+ }
+ ret = read(readpipe[0], converted + read_bytes, conv_size - read_bytes);
+ if (ret == -1) {
+ warn("Cannot read from pipe");
+ FREE(converted);
+ return NULL;
+ }
+ read_bytes += ret;
+ } while (ret > 0);
+
+ /* get the returncode */
+ int status;
+ wait(&status);
+ if (!WIFEXITED(status)) {
+ fprintf(stderr, "Child did not terminate normally, using old config file (will lead to broken behaviour)\n");
+ return NULL;
+ }
+
+ int returncode = WEXITSTATUS(status);
+ if (returncode != 0) {
+ fprintf(stderr, "Migration process exit code was != 0\n");
+ if (returncode == 2) {
+ fprintf(stderr, "could not start the migration script\n");
+ /* TODO: script was not found. tell the user to fix his system or create a v4 config */
+ } else if (returncode == 1) {
+ fprintf(stderr, "This already was a v4 config. Please add the following line to your config file:\n");
+ fprintf(stderr, "# i3 config file (v4)\n");
+ /* TODO: nag the user with a message to include a hint for i3 in his config file */
+ }
+ return NULL;
+ }
+
+ return converted;
+}
+
+/*
+ * Handler which will be called when we get a SIGCHLD for the nagbar, meaning
+ * it exited (or could not be started, depending on the exit code).
+ *
+ */
+static void nagbar_exited(EV_P_ ev_child *watcher, int revents) {
+ ev_child_stop(EV_A_ watcher);
+ if (!WIFEXITED(watcher->rstatus)) {
+ fprintf(stderr, "ERROR: i3-nagbar did not exit normally.\n");
+ return;
+ }
+
+ int exitcode = WEXITSTATUS(watcher->rstatus);
+ printf("i3-nagbar process exited with status %d\n", exitcode);
+ if (exitcode == 2) {
+ fprintf(stderr, "ERROR: i3-nagbar could not be found. Is it correctly installed on your system?\n");
+ }
+
+ configerror_pid = -1;
+}
+
+/*
+ * Starts an i3-nagbar process which alerts the user that his configuration
+ * file contains one or more errors. Also offers two buttons: One to launch an
+ * $EDITOR on the config file and another one to launch a $PAGER on the error
+ * logfile.
+ *
+ */
+static void start_configerror_nagbar(const char *config_path) {
+ fprintf(stderr, "Would start i3-nagscreen now\n");
+ configerror_pid = fork();
+ if (configerror_pid == -1) {
+ warn("Could not fork()");
+ return;
+ }
+
+ /* child */
+ if (configerror_pid == 0) {
+ char *editaction,
+ *pageraction;
+ if (asprintf(&editaction, TERM_EMU " -e sh -c \"${EDITOR:-vi} \"%s\" && i3-msg reload\"", config_path) == -1)
+ exit(1);
+ if (asprintf(&pageraction, TERM_EMU " -e sh -c \"${PAGER:-less} \"%s\"\"", errorfilename) == -1)
+ exit(1);
+ char *argv[] = {
+ NULL, /* will be replaced by the executable path */
+ "-m",
+ "You have an error in your i3 config file!",
+ "-b",
+ "edit config",
+ editaction,
+ (errorfilename ? "-b" : NULL),
+ "show errors",
+ pageraction,
+ NULL
+ };
+ exec_i3_utility("i3-nagbar", argv);
+ }
+
+ /* parent */
+ /* install a child watcher */
+ ev_child *child = smalloc(sizeof(ev_child));
+ ev_child_init(child, &nagbar_exited, configerror_pid, 0);
+ ev_child_start(main_loop, child);
+}
+
+/*
+ * Kills the configerror i3-nagbar process, if any.
+ *
+ * Called when reloading/restarting.
+ *
+ * If wait_for_it is set (restarting), this function will waitpid(), otherwise,
+ * ev is assumed to handle it (reloading).
+ *
+ */
+void kill_configerror_nagbar(bool wait_for_it) {
+ if (configerror_pid == -1)
+ return;
+
+ if (kill(configerror_pid, SIGTERM) == -1)
+ warn("kill(configerror_nagbar) failed");
+
+ if (!wait_for_it)
+ return;
+
+ /* When restarting, we don’t enter the ev main loop anymore and after the
+ * exec(), our old pid is no longer watched. So, ev won’t handle SIGCHLD
+ * for us and we would end up with a <defunct> process. Therefore we
+ * waitpid() here. */
+ waitpid(configerror_pid, NULL, 0);
+}
+
void parse_file(const char *f) {
SLIST_HEAD(variables_head, Variable) variables = SLIST_HEAD_INITIALIZER(&variables);
int fd, ret, read_bytes = 0;
continue;
if (strcasecmp(key, "set") == 0) {
- if (value[0] != '$')
- die("Malformed variable assignment, name has to start with $\n");
+ if (value[0] != '$') {
+ ELOG("Malformed variable assignment, name has to start with $\n");
+ continue;
+ }
/* get key/value for this variable */
char *v_key = value, *v_value;
- if ((v_value = strstr(value, " ")) == NULL)
- die("Malformed variable assignment, need a value\n");
+ if ((v_value = strstr(value, " ")) == NULL &&
+ (v_value = strstr(value, "\t")) == NULL) {
+ ELOG("Malformed variable assignment, need a value\n");
+ continue;
+ }
*(v_value++) = '\0';
}
}
+ /* analyze the string to find out whether this is an old config file (3.x)
+ * or a new config file (4.x). If it’s old, we run the converter script. */
+ int version = detect_version(buf);
+ if (version == 3) {
+ /* We need to convert this v3 configuration */
+ char *converted = migrate_config(new, stbuf.st_size);
+ if (converted != NULL) {
+ printf("\n");
+ printf("****************************************************************\n");
+ printf("NOTE: Automatically converted configuration file from v3 to v4.\n");
+ printf("\n");
+ printf("Please convert your config file to v4. You can use this command:\n");
+ printf(" mv %s %s.O\n", f, f);
+ printf(" i3-migrate-config-to-v4 %s.O > %s\n", f, f);
+ printf("****************************************************************\n");
+ printf("\n");
+ free(new);
+ new = converted;
+ } else {
+ printf("\n");
+ printf("**********************************************************************\n");
+ printf("ERROR: Could not convert config file. Maybe i3-migrate-config-to-v4\n");
+ printf("was not correctly installed on your system?\n");
+ printf("**********************************************************************\n");
+ printf("\n");
+ }
+ }
+
+ /* now lex/parse it */
yy_scan_string(new);
context = scalloc(sizeof(struct context));
exit(1);
}
+ if (context->has_errors) {
+ start_configerror_nagbar(f);
+ }
+
+ yylex_destroy();
FREE(context->line_copy);
free(context);
free(new);
%token TOKIPCSOCKET "ipc_socket"
%token TOKRESTARTSTATE "restart_state"
%token TOKEXEC "exec"
+%token TOKEXEC_ALWAYS "exec_always"
%token <single_color> TOKSINGLECOLOR
%token <color> TOKCOLOR
%token TOKARROW "→"
%token TOK_MARK "mark"
%token TOK_CLASS "class"
+%token TOK_INSTANCE "instance"
%token TOK_ID "id"
%token TOK_CON_ID "con_id"
%token TOK_TITLE "title"
| ipcsocket
| restart_state
| exec
+ | exec_always
| single_color
| color
| terminal
for_window:
TOK_FOR_WINDOW match command
{
+ if (match_is_empty(¤t_match)) {
+ ELOG("Match is empty, ignoring this for_window statement\n");
+ break;
+ }
printf("\t should execute command %s for the criteria mentioned above\n", $3);
Assignment *assignment = scalloc(sizeof(Assignment));
assignment->type = A_COMMAND;
;
criteria:
+ criteria criterion
+ | criterion
+ ;
+
+criterion:
TOK_CLASS '=' STR
{
printf("criteria: class = %s\n", $3);
current_match.class = $3;
}
+ | TOK_INSTANCE '=' STR
+ {
+ printf("criteria: instance = %s\n", $3);
+ current_match.instance = $3;
+ }
| TOK_CON_ID '=' STR
{
printf("criteria: id = %s\n", $3);
}
DLOG("Should assign workspace %s to output %s\n", ws_name, $4);
- struct Workspace_Assignment *assignment = scalloc(sizeof(struct Workspace_Assignment));
- assignment->name = ws_name;
- assignment->output = $4;
- TAILQ_INSERT_TAIL(&ws_assignments, assignment, ws_assignments);
+ /* Check for earlier assignments of the same workspace so that we
+ * don’t have assignments of a single workspace to different
+ * outputs */
+ struct Workspace_Assignment *assignment;
+ bool duplicate = false;
+ TAILQ_FOREACH(assignment, &ws_assignments, ws_assignments) {
+ if (strcasecmp(assignment->name, ws_name) == 0) {
+ ELOG("You have a duplicate workspace assignment for workspace \"%s\"\n",
+ ws_name);
+ assignment->output = $4;
+ duplicate = true;
+ }
+ }
+ if (!duplicate) {
+ assignment = scalloc(sizeof(struct Workspace_Assignment));
+ assignment->name = ws_name;
+ assignment->output = $4;
+ TAILQ_INSERT_TAIL(&ws_assignments, assignment, ws_assignments);
+ }
}
}
| TOKWORKSPACE NUMBER workspace_name
/* Compatibility with older versions: If the assignment target starts
* with ~, we create the equivalent of:
*
- * for_window [class="foo"] mode floating
+ * for_window [class="foo"] floating enable
*/
if (*workspace == '~') {
workspace++;
if (*workspace == '\0') {
/* This assignment was *only* for floating */
assignment->type = A_COMMAND;
- assignment->dest.command = sstrdup("mode floating");
+ assignment->dest.command = sstrdup("floating enable");
TAILQ_INSERT_TAIL(&assignments, assignment, assignments);
break;
} else {
Assignment *floating = scalloc(sizeof(Assignment));
match_copy(&(floating->match), match);
floating->type = A_COMMAND;
- floating->dest.command = sstrdup("mode floating");
+ floating->dest.command = sstrdup("floating enable");
TAILQ_INSERT_TAIL(&assignments, floating, assignments);
}
}
}
;
+exec_always:
+ TOKEXEC_ALWAYS STR
+ {
+ struct Autostart *new = smalloc(sizeof(struct Autostart));
+ new->command = $2;
+ TAILQ_INSERT_TAIL(&autostarts_always, new, autostarts_always);
+ }
+ ;
+
terminal:
TOKTERMINAL STR
{
{
config.font = load_font($2, true);
printf("font %s\n", $2);
+ free($2);
}
;
char *hex;
if (asprintf(&hex, "#%s", $2) == -1)
die("asprintf()");
+ free($2);
$$ = get_colorpixel(hex);
free(hex);
}
projects / i3 / i3 / blobdiff