From 9fa0bbca17f6346f10cffb618d2905dd3711c291 Mon Sep 17 00:00:00 2001
From: Bert <ber.t@gmx.com>
Date: Sat, 3 Sep 2011 15:58:58 +0200
Subject: [PATCH] Simplified it_shell_cmd() using SXIV_IMG env-variable

---
 commands.c | 57 ++++++++++++++++++------------------------------------
 config.h   | 14 +++++++++-----
 2 files changed, 28 insertions(+), 43 deletions(-)

diff --git a/commands.c b/commands.c
index 123d4f5..1bf95af 100644
--- a/commands.c
+++ b/commands.c
@@ -16,7 +16,9 @@
  * Foundation, Inc., 51 Franklin Street, 5th Floor, Boston, MA 02110-1301, USA.
  */
 
+#define _POSIX_C_SOURCE 200112L /* for setenv(3) */
 #include <stdlib.h>
+
 #include <string.h>
 #include <unistd.h>
 #include <sys/wait.h>
@@ -345,45 +347,27 @@ int it_open_with(arg_t a) {
 		warn("could not exec: %s", prog);
 		exit(1);
 	} else if (pid < 0) {
-		warn("could not for. program was: %s", prog);
+		warn("could not fork. program was: %s", prog);
 	}
 	
 	return 0;
 }
 
 int it_shell_cmd(arg_t a) {
-	const char *cline = (const char*) a;
-	char *cn, *cmdline;
-	const char *co, *fpath;
-	int fpcnt, fplen, status;
+	int n, status;
+	const char *cmdline = (const char*) a;
 	pid_t pid;
 
-	if (!cline || !*cline)
+	if (!cmdline || !*cmdline)
 		return 0;
 
-	/* build command line: */
-	fpcnt = 0;
-	co = cline - 1;
-	while ((co = strchr(co + 1, '#')))
-		fpcnt++;
-	if (!fpcnt)
+	n = mode == MODE_IMAGE ? fileidx : tns.sel;
+
+	if (setenv("SXIV_IMG", files[n].path, 1) < 0) {
+		warn("could not change env.-variable: SXIV_IMG. command line was: %s",
+		     cmdline);
 		return 0;
-	fpath = files[mode == MODE_IMAGE ? fileidx : tns.sel].path;
-	fplen = strlen(fpath);
-	cn = cmdline = (char*) s_malloc((strlen(cline) + fpcnt * (fplen + 2)) *
-	                                sizeof(char));
-	/* replace all '#' with filename: */
-	for (co = cline; *co; co++) {
-		if (*co == '#') {
-			*cn++ = '"';
-			strcpy(cn, fpath);
-			cn += fplen;
-			*cn++ = '"';
-		} else {
-			*cn++ = *co;
-		}
 	}
-	*cn = '\0';
 
 	win_set_cursor(&win, CURSOR_WATCH);
 
@@ -402,17 +386,16 @@ int it_shell_cmd(arg_t a) {
 		     WEXITSTATUS(status), cmdline);
 	
 	if (mode == MODE_IMAGE) {
-		if (fileidx < tns.cnt)
-			tns_load(&tns, fileidx, &files[fileidx], False, True);
 		img_close(&img, 1);
 		load_image(fileidx);
-	} else {
-		if (!tns_load(&tns, tns.sel, &files[tns.sel], True, False)) {
-			remove_file(tns.sel, 0);
-			tns.dirty = 1;
-			if (tns.sel >= tns.cnt)
-				tns.sel = tns.cnt - 1;
-		}
+	}
+	if (!tns_load(&tns, n, &files[n], True, mode == MODE_IMAGE) &&
+	    mode == MODE_THUMB)
+	{
+		remove_file(tns.sel, 0);
+		tns.dirty = 1;
+		if (tns.sel >= tns.cnt)
+			tns.sel = tns.cnt - 1;
 	}
 
 end:
@@ -420,7 +403,5 @@ end:
 		win_set_cursor(&win, CURSOR_ARROW);
 	/* else: cursor gets reset in redraw() */
 
-	free(cmdline);
-
 	return 1;
 }
diff --git a/config.h b/config.h
index 46e30c6..aa8bc8a 100644
--- a/config.h
+++ b/config.h
@@ -110,11 +110,15 @@ static const keymap_t keys[] = {
 	/* open current image with given program: */
 	{ True,   XK_g,             it_open_with,         (arg_t) "gimp" },
 
-	/* run shell command line on current file ('#' is replaced by file path: */
-	{ True,   XK_less,          it_shell_cmd,         (arg_t) "mogrify -rotate -90 #" },
-	{ True,   XK_greater,       it_shell_cmd,         (arg_t) "mogrify -rotate +90 #" },
-	{ True,   XK_comma,         it_shell_cmd,         (arg_t) "jpegtran -rotate 270 -copy all -outfile # #" },
-	{ True,   XK_period,        it_shell_cmd,         (arg_t) "jpegtran -rotate 90 -copy all -outfile # #" },
+	/* run shell command line on current file ("$SXIV_IMG"): */
+	{ True,   XK_less,          it_shell_cmd,         (arg_t) \
+			"mogrify -rotate -90 \"$SXIV_IMG\"" },
+	{ True,   XK_greater,       it_shell_cmd,         (arg_t) \
+			"mogrify -rotate +90 \"$SXIV_IMG\"" },
+	{ True,   XK_comma,         it_shell_cmd,         (arg_t) \
+			"jpegtran -rotate 270 -copy all -outfile \"$SXIV_IMG\" \"$SXIV_IMG\"" },
+	{ True,   XK_period,        it_shell_cmd,         (arg_t) \
+			"jpegtran -rotate  90 -copy all -outfile \"$SXIV_IMG\" \"$SXIV_IMG\"" },
 };
 
 /* mouse button mappings for image mode: */