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htop
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getopt-based long options and --no-color 

(thanks to Vincent Launchbury)
This commit is contained in:
Hisham Muhammad 2010-02-25 02:04:24 +00:00
parent 02a30bfecd
commit 62a31673cb
2 changed files with 77 additions and 49 deletions
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2
ChangeLog
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@ -5,6 +5,8 @@ What's new in version 0.8.4
(thanks to Anders Torger) (thanks to Anders Torger)
* Fix license terms with regard to PLPA * Fix license terms with regard to PLPA
(thanks to Tom Callaway) (thanks to Tom Callaway)
* getopt-based long options and --no-color
(thanks to Vincent Launchbury)
What's new in version 0.8.3 What's new in version 0.8.3

124
htop.c
View File

@ -1,6 +1,6 @@
/* /*
htop - htop.c htop - htop.c
(C) 2004-2008 Hisham H. Muhammad (C) 2004-2010 Hisham H. Muhammad
Released under the GNU GPL, see the COPYING file Released under the GNU GPL, see the COPYING file
in the source distribution for its full text. in the source distribution for its full text.
*/ */
@ -12,6 +12,7 @@ in the source distribution for its full text.
#include <ctype.h> #include <ctype.h>
#include <stdbool.h> #include <stdbool.h>
#include <locale.h> #include <locale.h>
#include <getopt.h>
#include "ProcessList.h" #include "ProcessList.h"
#include "CRT.h" #include "CRT.h"
@ -36,22 +37,29 @@ in the source distribution for its full text.
#define INCSEARCH_MAX 40 #define INCSEARCH_MAX 40
#define COPYRIGHT "(C) 2004-2010 Hisham Muhammad"
static void printVersionFlag() { static void printVersionFlag() {
clear(); fputs("htop " VERSION " - " COPYRIGHT "\n"
printf("htop " VERSION " - (C) 2004-2008 Hisham Muhammad.\n"); "Released under the GNU GPL.\n\n",
printf("Released under the GNU GPL.\n\n"); stdout);
exit(0); exit(0);
} }
static void printHelpFlag() { static void printHelpFlag() {
clear(); fputs("htop " VERSION " - " COPYRIGHT "\n"
printf("htop " VERSION " - (C) 2004-2008 Hisham Muhammad.\n"); "Released under the GNU GPL.\n\n"
printf("Released under the GNU GPL.\n\n"); "-C --no-color Use a monochrome color scheme\n"
printf("-d DELAY Delay between updates, in tenths of seconds\n\n"); "-d --delay=DELAY Set the delay between updates, in tenths of seconds\n"
printf("-u USERNAME Show only processes of a given user\n\n"); "-h --help Print this help screen\n"
printf("--sort-key COLUMN Sort by this column (use --sort-key help for a column list)\n\n"); "-s --sort-key=COLUMN Sort by COLUMN (try --sort-key=help for a list)\n"
printf("Press F1 inside htop for online help.\n"); "-u --user=USERNAME Show only processes of a given user\n"
printf("See the man page for full information.\n\n"); "-v --version Print version info\n"
"\n"
"Long options may be passed with a single dash.\n\n"
"Press F1 inside htop for online help.\n"
"See 'man htop' for more information.\n",
stdout);
exit(0); exit(0);
} }
@ -62,7 +70,7 @@ static void showHelp(ProcessList* pl) {
for (int i = 0; i < LINES-1; i++) for (int i = 0; i < LINES-1; i++)
mvhline(i, 0, ' ', COLS); mvhline(i, 0, ' ', COLS);
mvaddstr(0, 0, "htop " VERSION " - (C) 2004-2008 Hisham Muhammad."); mvaddstr(0, 0, "htop " VERSION " - " COPYRIGHT);
mvaddstr(1, 0, "Released under the GNU GPL. See 'man' page for more info."); mvaddstr(1, 0, "Released under the GNU GPL. See 'man' page for more info.");
attrset(CRT_colors[DEFAULT_COLOR]); attrset(CRT_colors[DEFAULT_COLOR]);
@ -139,7 +147,7 @@ static void showHelp(ProcessList* pl) {
mvaddstr(18, 0, " a:"); mvaddstr(18, 0, " a:");
#endif #endif
mvaddstr(19, 0, " F2 S"); mvaddstr(19,40, " F6 >"); mvaddstr(19, 0, " F2 S"); mvaddstr(19,40, " F6 >");
mvaddstr(20, 0, " F1 h"); mvaddstr(20,40, " l"); mvaddstr(20, 0, " ? F1 h"); mvaddstr(20,40, " l");
mvaddstr(21, 0, " F10 q"); mvaddstr(21,40, " s"); mvaddstr(21, 0, " F10 q"); mvaddstr(21,40, " s");
attrset(CRT_colors[DEFAULT_COLOR]); attrset(CRT_colors[DEFAULT_COLOR]);
@ -238,6 +246,20 @@ int main(int argc, char** argv) {
int delay = -1; int delay = -1;
bool userOnly = false; bool userOnly = false;
uid_t userId = 0; uid_t userId = 0;
int usecolors = 1;
int opt, opti=0;
static struct option long_opts[] =
{
{"help", no_argument, 0, 'h'},
{"version", no_argument, 0, 'v'},
{"delay", required_argument, 0, 'd'},
{"sort-key", required_argument, 0, 's'},
{"user", required_argument, 0, 'u'},
{"no-color", no_argument, 0, 'C'},
{"no-colour",no_argument, 0, 'C'},
{0,0,0,0}
};
int sortKey = 0; int sortKey = 0;
char *lc_ctype = getenv("LC_CTYPE"); char *lc_ctype = getenv("LC_CTYPE");
@ -246,43 +268,44 @@ int main(int argc, char** argv) {
else else
setlocale(LC_CTYPE, getenv("LC_ALL")); setlocale(LC_CTYPE, getenv("LC_ALL"));
int arg = 1; /* Parse arguments */
while (arg < argc) { while ((opt = getopt_long_only(argc, argv, "hvCs:d:u:", long_opts, &opti))) {
if (String_eq(argv[arg], "--help")) { if (opt == EOF) break;
printHelpFlag(); switch (opt) {
} else if (String_eq(argv[arg], "--version")) { case 'h':
printVersionFlag(); printHelpFlag();
} else if (String_eq(argv[arg], "--sort-key")) { break;
if (arg == argc - 1) printHelpFlag(); case 'v':
arg++; printVersionFlag();
char* field = argv[arg]; break;
if (String_eq(field, "help")) { case 's':
for (int j = 1; j < LAST_PROCESSFIELD; j++) if (strcmp(optarg, "help")) {
printf ("%s\n", Process_fieldNames[j]); for (int j = 1; j < LAST_PROCESSFIELD; j++)
exit(0); printf ("%s\n", Process_fieldNames[j]);
} exit(0);
sortKey = ColumnsPanel_fieldNameToIndex(field); }
if (sortKey == -1) {
fprintf(stderr, "Error: invalid column \"%s\".\n", field); sortKey = ColumnsPanel_fieldNameToIndex(optarg);
exit(1); if (sortKey == -1) {
} fprintf(stderr, "Error: invalid column \"%s\".\n", optarg);
} else if (String_eq(argv[arg], "-d")) { exit(1);
if (arg == argc - 1) printHelpFlag(); }
arg++; break;
sscanf(argv[arg], "%d", &delay); case 'd':
if (delay < 1) delay = 1; sscanf(optarg, "%d", &delay);
if (delay > 100) delay = 100; if (delay < 1) delay = 1;
} else if (String_eq(argv[arg], "-u")) { if (delay > 100) delay = 100;
if (arg == argc - 1) printHelpFlag(); break;
arg++; case 'u':
setUserOnly(argv[arg], &userOnly, &userId); setUserOnly(optarg, &userOnly, &userId);
} else { break;
fprintf(stderr, "Error: unknown flag: %s\n", argv[arg]); case 'C':
exit(1); usecolors=0;
break;
} }
arg++;
} }
if (access(PROCDIR, R_OK) != 0) { if (access(PROCDIR, R_OK) != 0) {
fprintf(stderr, "Error: could not read procfs (compiled to look in %s).\n", PROCDIR); fprintf(stderr, "Error: could not read procfs (compiled to look in %s).\n", PROCDIR);
exit(1); exit(1);
@ -315,6 +338,8 @@ int main(int argc, char** argv) {
// FIXME: move delay code to settings // FIXME: move delay code to settings
if (delay != -1) if (delay != -1)
settings->delay = delay; settings->delay = delay;
if (!usecolors)
settings->colorScheme = COLORSCHEME_MONOCHROME;
CRT_init(settings->delay, settings->colorScheme); CRT_init(settings->delay, settings->colorScheme);
@ -532,6 +557,7 @@ int main(int argc, char** argv) {
} }
case KEY_F(1): case KEY_F(1):
case 'h': case 'h':
case '?':
{ {
showHelp(pl); showHelp(pl);
FunctionBar_draw(defaultBar, NULL); FunctionBar_draw(defaultBar, NULL);