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Use C code to detect WM theme (#42)
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* Use C code to detect WM theme

* replace more shell commands with c functions, few error fixes

* fix unquoting strings, make detectgtk script more usable

* define _POSIX_C_SOURCE=200809L
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@darealshinji @woodruffw
darealshinji authored and woodruffw committed Jan 22, 2018
1 parent 0333515 commit 358e1d7
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Showing 7 changed files with 360 additions and 31 deletions.
4 changes: 2 additions & 2 deletions Makefile
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
CC = gcc
CFLAGS = -O3 -std=c99 -Wall -Wformat -Wunused-variable -pedantic
CPPFLAGS = -D_POSIX_C_SOURCE=200112L
CPPFLAGS = -D_POSIX_C_SOURCE=200809L
LDFLAGS =
INSTALL = install -c

Expand Down Expand Up @@ -38,7 +38,7 @@ else
SOURCES += $(wildcard ./src/plat/linux/*.c)
CFLAGS += -Wno-unused-result
LDFLAGS += -lX11 -lGL
SCRIPTS += ./src/scripts/detectwmtheme ./src/scripts/detectgtk
SCRIPTS += ./src/scripts/detectgtk
TESTS += x11test gltest
endif

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4 changes: 3 additions & 1 deletion src/misc.h
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Original file line number Diff line number Diff line change
Expand Up @@ -11,9 +11,11 @@
#define KB (1024)
#define MB (KB * KB)
#define GB (MB * KB)
#define MAX_STRLEN 128
#define MAX_STRLEN 512
#define SET_GIVEN_DISTRO(str) (safe_strncpy(given_distro_str, str, MAX_STRLEN))
#define STREQ(x, y) (!strcmp(x, y))
#define STRCASEEQ(x, y) (!strcasecmp(x, y))
#define BEGINS_WITH(x, y) (!strncmp(x, y, strlen(y)))
#define FILE_EXISTS(file) (!access(file, F_OK))

#endif /* SCREENFETCH_C_MISC_H */
313 changes: 296 additions & 17 deletions src/plat/linux/detect.c
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,7 @@
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
#include <strings.h>
#include <getopt.h>

/* linux-specific includes */
Expand All @@ -35,6 +36,29 @@
#include "../../util.h"
#include "../../error_flag.h"

/* remove preceding and trailing single quote character,
remove trailing newline
*/
static void unquote(char *s)
{
int len = strlen(s);

if (s[len-1] == '\n')
{
s[len-1] = '\0';
len--;
}
if (s[len-1] == '\'')
{
s[len-1] = '\0';
len--;
}
if (s[0] == '\'')
{
memmove(s, s+1, len);
}
}

/* detect_distro
detects the computer's distribution (really only relevant on Linux)
*/
Expand Down Expand Up @@ -753,14 +777,267 @@ void detect_wm(void)
*/
void detect_wm_theme(void)
{
char exec_str[MAX_STRLEN];
char exec_str[MAX_STRLEN] = "false";
char config_file[MAX_STRLEN];
char *home;
FILE *wm_theme_file;

snprintf(exec_str, MAX_STRLEN, "detectwmtheme %s 2> /dev/null", wm_str);
snprintf(wm_theme_str, MAX_STRLEN, "Unknown");
home = getenv("HOME");

if (!home)
{
ERR_REPORT("Environment variable HOME not set.");
}
else
{
if (STREQ("Awesome", wm_str))
{
snprintf(config_file, MAX_STRLEN, "%s/.config/awesome/rc.lua", home);
snprintf(exec_str, MAX_STRLEN,
"grep -e '^[^-].*\\(theme\\|beautiful\\).*lua' '%s' | grep '[a-zA-Z0-9]\\+/[a-zA-Z0-9]\\+.lua' -o | head -n1 | cut -d'/' -f1",
config_file);
}
else if (STRCASEEQ("BlackBox", wm_str))
{
snprintf(config_file, MAX_STRLEN, "%s/.blackboxrc", home);
if (FILE_EXISTS(config_file))
{
snprintf(exec_str, MAX_STRLEN,
"awk -F\"/\" '/styleFile/ {print $NF}' '%s'",
config_file);
}
}
else if (STREQ("Cinnamon", wm_str))
{
safe_strncpy(exec_str,
"gsettings get org.cinnamon.theme name",
MAX_STRLEN);
}
else if (STREQ("Compiz", wm_str) || BEGINS_WITH(wm_str, "Mutter") ||
STREQ("GNOME Shell", wm_str))
{
if (command_in_path("gsettings"))
{
safe_strncpy(exec_str,
"gsettings get org.gnome.desktop.wm.preferences theme",
MAX_STRLEN);
}
else if (command_in_path("gconftool-2"))
{
safe_strncpy(exec_str,
"gconftool-2 -g /apps/metacity/general/theme",
MAX_STRLEN);
}
}
else if (STREQ("E16", wm_str))
{
snprintf(config_file, MAX_STRLEN, "%s/.e16/e_config--0.0.cfg", home);
if (FILE_EXISTS(config_file))
{
snprintf(exec_str, MAX_STRLEN,
"awk -F\"= \" '/theme.name/ {print $2}' '%s'",
config_file);
}
}
else if (STREQ("E17", wm_str) || STREQ("Enlightenment", wm_str))
{
snprintf(config_file, MAX_STRLEN, "%s/.e/e/config/standard/e.cfg", home);
if (FILE_EXISTS(config_file) && command_in_path("eet"))
{
snprintf(exec_str, MAX_STRLEN,
"cfg=\"$(eet -d '%s' config | awk '/value \"file\" string.*.edj/{ print $4 }')\"; "
"cfg=\"${cfg##*/}\"; "
"echo \"${cfg%%.*}\"",
config_file);
}
else
{
char *tmp = getenv("E_CONF_PROFILE");
if (tmp)
{
safe_strncpy(wm_theme_str, tmp, MAX_STRLEN);
}
}
}
else if (STREQ("Emerald", wm_str))
{
snprintf(config_file, MAX_STRLEN, "%s/.emerald/theme/theme.ini", home);
if (FILE_EXISTS(config_file))
{
snprintf(exec_str, MAX_STRLEN,
"for a in /usr/share/emerald/themes/* \"%s/.emerald/themes\"/*; do"
" cmp \"%s\" \"$a/theme.ini\" &>/dev/null && basename \"$a\"; "
"done",
home, config_file);
}
}
else if (STRCASEEQ("FluxBox", wm_str))
{
snprintf(config_file, MAX_STRLEN, "%s/.fluxbox/init", home);
if (FILE_EXISTS(config_file))
{
snprintf(exec_str, MAX_STRLEN,
"awk -F\"/\" '/styleFile/ {print $NF}' '%s'",
config_file);
}
}
else if (STREQ("IceWM", wm_str))
{
snprintf(config_file, MAX_STRLEN, "%s/.icewm/theme", home);
if (FILE_EXISTS(config_file))
{
snprintf(exec_str, MAX_STRLEN,
"awk -F\"[\\\",/]\" '!/#/ {print $2}' '%s'",
config_file);
}
}
else if (BEGINS_WITH(wm_str, "KWin"))
{
FILE *f = NULL;
char kde_config_dir[MAX_STRLEN] = "Unknown";
char kde_theme[MAX_STRLEN] = "Unknown";
char *env;
const char *kde_config_cmd = NULL;

env = getenv("KDE_CONFIG_DIR");
if (env)
{
safe_strncpy(kde_config_dir, env, MAX_STRLEN);
}
else
{
if (command_in_path("kde5-config"))
{
kde_config_cmd = "kde5-config --localprefix";
}
else if (command_in_path("kde4-config"))
{
kde_config_cmd = "kde4-config --localprefix";
}
if (command_in_path("kde-config"))
{
kde_config_cmd = "kde-config --localprefix";
}

if (kde_config_cmd)
{
f = popen(kde_config_cmd, "r");
fgets(kde_config_dir, MAX_STRLEN, f);
pclose(f);
}
}

if (!STREQ("Unknown", kde_config_dir))
{
snprintf(exec_str, MAX_STRLEN,
"awk '/PluginLib=kwin3_/{gsub(/PluginLib=kwin3_/,\"\",$0); print $0; exit}' '%s/share/config/kwinrc'",
kde_config_dir);
f = popen(exec_str, "r");
fgets(kde_theme, MAX_STRLEN, f);
pclose(f);

if (STREQ("", kde_theme) || STREQ("\n", kde_theme))
{
snprintf(config_file, MAX_STRLEN, "%s/share/config/kdebugrc", kde_config_dir);
if (FILE_EXISTS(config_file))
{
snprintf(exec_str, MAX_STRLEN,
"awk '/(decoration)/ {gsub(/\\[/,\"\",$1); print $1; exit}' '%s'",
config_file);
f = popen(exec_str, "r");
fgets(kde_theme, MAX_STRLEN, f);
pclose(f);

if (STREQ("", kde_theme) || STREQ("\n", kde_theme))
{
safe_strncpy(kde_theme, "Unknown", MAX_STRLEN);
}
}
}
}

safe_strncpy(exec_str, "false", MAX_STRLEN);
safe_strncpy(wm_theme_str, kde_theme, MAX_STRLEN);
}
else if (STREQ("Marco", wm_str) || STREQ("Metacity (Marco)", wm_str))
{
safe_strncpy(exec_str,
"gsettings get org.mate.Marco.general theme",
MAX_STRLEN);
}
else if (STREQ("Metacity", wm_str))
{
safe_strncpy(exec_str, "gconftool-2 -g /apps/metacity/general/theme 2>/dev/null", MAX_STRLEN);
}
else if (STRCASEEQ("OpenBox", wm_str))
{
snprintf(config_file, MAX_STRLEN, "%s/.config/openbox/lxde-rc.xml", home);
if (!(FILE_EXISTS(config_file) && STREQ(de_str, "LXDE")))
{
config_file[0] = '\0';
}

if (config_file[0] == '\0')
{
snprintf(config_file, MAX_STRLEN, "%s/.config/openbox/rc.xml", home);
if (!FILE_EXISTS(config_file))
{
config_file[0] = '\0';
}
}

if (config_file[0] != '\0')
{
snprintf(exec_str, MAX_STRLEN,
"awk -F\"[<,>]\" '/<theme/ { getline; print $3 }' '%s'",
config_file);
}
}
else if (STREQ("PekWM", wm_str))
{
snprintf(config_file, MAX_STRLEN, "%s/.pekwm/config", home);
if (FILE_EXISTS(config_file))
{
snprintf(exec_str, MAX_STRLEN,
"awk -F\"/\" '/Theme/ {gsub(/\\\"/,\"\"); print $NF}' '%s'",
config_file);
}
}
else if (STREQ("Sawfish", wm_str))
{
snprintf(config_file, MAX_STRLEN, "%s/.sawfish/custom", home);
if (FILE_EXISTS(config_file))
{
snprintf(exec_str, MAX_STRLEN,
"awk -F\")\" '/\\(quote default-frame-style/{print $2}' '%s' | sed 's/ (quote //'",
config_file);
}
}
else if (STREQ("Xfwm4", wm_str))
{
snprintf(config_file, MAX_STRLEN,
"%s/.config/xfce4/xfconf/xfce-perchannel-xml/xfwm4.xml",
home);
if (FILE_EXISTS(config_file))
{
safe_strncpy(exec_str, "xfconf-query -c xfwm4 -p /general/theme", MAX_STRLEN);
}
}

wm_theme_file = popen(exec_str, "r");
fgets(wm_theme_str, MAX_STRLEN, wm_theme_file);
pclose(wm_theme_file);
if (!STREQ(exec_str, "false") && STREQ(wm_theme_str, "Unknown"))
{
wm_theme_file = popen(exec_str, "r");
fgets(wm_theme_str, MAX_STRLEN, wm_theme_file);
pclose(wm_theme_file);

if (STREQ("", wm_theme_str) || STREQ("\n", wm_theme_str))
{
safe_strncpy(wm_theme_str, "Unknown", MAX_STRLEN);
}
unquote(wm_theme_str);
}
}

return;
}
Expand All @@ -775,26 +1052,28 @@ void detect_wm_theme(void)
void detect_gtk(void)
{
FILE *gtk_file;
char exec_str[MAX_STRLEN];
char gtk2_str[MAX_STRLEN] = "Unknown";
char gtk3_str[MAX_STRLEN] = "Unknown";
char gtk_icons_str[MAX_STRLEN] = "Unknown";
char gtk_font_str[MAX_STRLEN] = "Unknown";

gtk_file = popen("detectgtk 2> /dev/null", "r");
snprintf(exec_str, MAX_STRLEN, "detectgtk '%s' 2> /dev/null", de_str);
gtk_file = popen(exec_str, "r");
fscanf(gtk_file, "%s%s%s%s", gtk2_str, gtk3_str, gtk_icons_str, gtk_font_str);
pclose(gtk_file);

if (STREQ(gtk2_str, gtk3_str))
{
if (STREQ(gtk2_str, "Unknown"))
safe_strncpy(gtk_str, gtk2_str, MAX_STRLEN);
else
snprintf(gtk_str, MAX_STRLEN, "%s (GTK2/3)", gtk2_str);
}
else if (STREQ(gtk2_str, "Unknown") && !STREQ(gtk3_str, "Unknown"))
snprintf(gtk_str, MAX_STRLEN, "%s (GTK3)", gtk3_str);
else if (STREQ(gtk3_str, "Unknown") && !STREQ(gtk2_str, "Unknown"))
snprintf(gtk_str, MAX_STRLEN, "%s (GTK2)", gtk2_str);
unquote(gtk2_str);
unquote(gtk3_str);
unquote(gtk_icons_str);
unquote(gtk_font_str);

if (STREQ(gtk3_str, "Unknown"))
snprintf(gtk_str, MAX_STRLEN, "%s (GTK2), %s (Icons)", gtk2_str,
gtk_icons_str);
else if (STREQ(gtk2_str, "Unknown"))
snprintf(gtk_str, MAX_STRLEN, "%s (GTK3), %s (Icons)", gtk3_str,
gtk_icons_str);
else
snprintf(gtk_str, MAX_STRLEN, "%s (GTK2), %s (GTK3)", gtk2_str, gtk3_str);

Expand Down
Empty file modified src/scripts/detectgpu
100644 → 100755
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