merge lsx -> default

Makefile

@@ -3,10 +3,10 @@
 
 include config.mk
 
-SRC = dmenu.c draw.c
+SRC = dmenu.c draw.c lsx.c
 OBJ = ${SRC:.c=.o}
 
-all: options dmenu
+all: options dmenu lsx
 
 options:
 	@echo dmenu build options:
@@ -20,9 +20,13 @@ options:
 
 ${OBJ}: config.mk
 
-dmenu: ${OBJ}
+dmenu: dmenu.o draw.o
 	@echo CC -o $@
-	@${CC} -o $@ ${OBJ} ${LDFLAGS}
+	@${CC} -o $@ dmenu.o draw.o ${LDFLAGS}
+
+lsx: lsx.o
+	@echo CC -o $@
+	@${CC} -o $@ lsx.o ${LDFLAGS}
 
 clean:
 	@echo cleaning
@@ -31,7 +35,7 @@ clean:
 dist: clean
 	@echo creating dist tarball
 	@mkdir -p dmenu-${VERSION}
-	@cp LICENSE Makefile README config.mk dmenu.1 draw.h dmenu_path dmenu_run ${SRC} dmenu-${VERSION}
+	@cp LICENSE Makefile README config.mk dmenu.1 draw.h dmenu_run ${SRC} dmenu-${VERSION}
 	@tar -cf dmenu-${VERSION}.tar dmenu-${VERSION}
 	@gzip dmenu-${VERSION}.tar
 	@rm -rf dmenu-${VERSION}
@@ -39,21 +43,24 @@ dist: clean
 install: all
 	@echo installing executables to ${DESTDIR}${PREFIX}/bin
 	@mkdir -p ${DESTDIR}${PREFIX}/bin
-	@cp -f dmenu dmenu_path dmenu_run ${DESTDIR}${PREFIX}/bin
+	@cp -f dmenu dmenu_run lsx ${DESTDIR}${PREFIX}/bin
 	@chmod 755 ${DESTDIR}${PREFIX}/bin/dmenu
-	@chmod 755 ${DESTDIR}${PREFIX}/bin/dmenu_path
 	@chmod 755 ${DESTDIR}${PREFIX}/bin/dmenu_run
-	@echo installing manual page to ${DESTDIR}${MANPREFIX}/man1
+	@chmod 755 ${DESTDIR}${PREFIX}/bin/lsx
+	@echo installing manual pages to ${DESTDIR}${MANPREFIX}/man1
 	@mkdir -p ${DESTDIR}${MANPREFIX}/man1
 	@sed "s/VERSION/${VERSION}/g" < dmenu.1 > ${DESTDIR}${MANPREFIX}/man1/dmenu.1
+	@sed "s/VERSION/${VERSION}/g" < lsx.1 > ${DESTDIR}${MANPREFIX}/man1/lsx.1
 	@chmod 644 ${DESTDIR}${MANPREFIX}/man1/dmenu.1
+	@chmod 644 ${DESTDIR}${MANPREFIX}/man1/lsx.1
 
 uninstall:
 	@echo removing executables from ${DESTDIR}${PREFIX}/bin
 	@rm -f ${DESTDIR}${PREFIX}/bin/dmenu
-	@rm -f ${DESTDIR}${PREFIX}/bin/dmenu_path
 	@rm -f ${DESTDIR}${PREFIX}/bin/dmenu_run
+	@rm -f ${DESTDIR}${PREFIX}/bin/lsx
 	@echo removing manual page from ${DESTDIR}${MANPREFIX}/man1
 	@rm -f ${DESTDIR}${MANPREFIX}/man1/dmenu.1
+	@rm -f ${DESTDIR}${MANPREFIX}/man1/lsx.1
 
 .PHONY: all options clean dist install uninstall

dmenu.1

@@ -23,12 +23,10 @@ dmenu \- dynamic menu
 .RB [ \-v ]
 .P
 .BR dmenu_run " ..."
-.P
-.B dmenu_path
 .SH DESCRIPTION
 .B dmenu
 is a dynamic menu for X, originally designed for
-.BR dwm (1).
+.IR dwm (1).
 It manages huge numbers of user\-defined menu items efficiently.
 .P
 dmenu reads a list of newline\-separated items from stdin and creates a menu.
@@ -36,11 +34,8 @@ When the user selects an item or enters any text and presses Return, their
 choice is printed to stdout and dmenu terminates.
 .P
 .B dmenu_run
-is a dmenu script used by dwm which lists programs in the user's PATH and
+is a dmenu script used by dwm which lists programs in the user's $PATH and
 executes the selected item.
-.P
-.B dmenu_path
-is a script used by dmenu_run to find and cache a list of executables.
 .SH OPTIONS
 .TP
 .B \-b
@@ -100,4 +95,5 @@ Exit without selecting an item, returning failure.
 .B Ctrl\-y
 Paste the current X selection into the input field.
 .SH SEE ALSO
-.BR dwm (1)
+.IR dwm (1),
+.IR lsx (1)

dmenu_path

@@ -1,9 +0,0 @@
-#!/bin/sh
-CACHE=$HOME/.dmenu_cache
-IFS=:
-
-if ! test -f "$CACHE" || find $PATH -type d -newer "$CACHE" | grep -q .; then
-	find $PATH ! -type d \( -perm -1 -o -perm -10 -o -perm -100 \) | sed 's/.*\///' | sort -u > "$CACHE"
-fi
-
-cat "$CACHE"

dmenu_run

@@ -1,2 +1,9 @@
 #!/bin/sh
-exe=`dmenu_path | dmenu ${1+"$@"}` && exec $exe
+CACHE=${XDG_CACHE_HOME:-"$HOME/.cache"}/dmenu_run
+(
+	IFS=:
+	if test "`ls -dt $PATH "$CACHE" 2> /dev/null | sed 1q`" != "$CACHE"; then
+		mkdir -p "`dirname "$CACHE"`" && lsx $PATH | sort -u > "$CACHE"
+	fi
+)
+cmd=`dmenu "$@" < "$CACHE"` && exec $cmd

lsx.1

@@ -0,0 +1,11 @@
+.TH LSX 1 dmenu\-VERSION
+.SH NAME
+lsx \- list executables
+.SH SYNOPSIS
+.B lsx
+.RI [ directory ...]
+.SH DESCRIPTION
+.B lsx
+lists the executables in each
+.IR directory .
+If none are given the current working directory is used.

lsx.c

@@ -0,0 +1,38 @@
+/* See LICENSE file for copyright and license details. */
+#include <dirent.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/stat.h>
+
+static void lsx(const char *dir);
+
+int
+main(int argc, char *argv[]) {
+	int i;
+
+	if(argc < 2)
+		lsx(".");
+	else for(i = 1; i < argc; i++)
+		lsx(argv[i]);
+	return EXIT_SUCCESS;
+}
+
+void
+lsx(const char *dir) {
+	char buf[PATH_MAX];
+	struct dirent *d;
+	struct stat st;
+	DIR *dp;
+
+	if(!(dp = opendir(dir))) {
+		perror(dir);
+		return;
+	}
+	while((d = readdir(dp)))
+		if(snprintf(buf, sizeof buf, "%s/%s", dir, d->d_name) < sizeof buf
+		&& !stat(buf, &st) && S_ISREG(st.st_mode) && access(buf, X_OK) == 0)
+			puts(d->d_name);
+	closedir(dp);
+}