X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fcgls%2Fcgls.c;h=e649b75df605b5a53bc3c38d8fa55a83c3a5150c;hb=39c155ea0d8b24895017fd5cf48508924ce2016d;hp=fd02d52c23f0fd6e7e9b35c6a0acb604de355e0e;hpb=dce818b390a857a11f7dd634684500675cf79833;p=elogind.git

diff --git a/src/cgls/cgls.c b/src/cgls/cgls.c
index fd02d52c2..e649b75df 100644
--- a/src/cgls/cgls.c
+++ b/src/cgls/cgls.c
@@ -29,18 +29,26 @@
 #include "cgroup-show.h"
 #include "cgroup-util.h"
 #include "log.h"
+#include "path-util.h"
 #include "util.h"
 #include "pager.h"
+#include "build.h"
+#include "output-mode.h"
 
 static bool arg_no_pager = false;
 static bool arg_kernel_threads = false;
+static bool arg_all = false;
+static int arg_full = -1;
 
 static void help(void) {
 
         printf("%s [OPTIONS...] [CGROUP...]\n\n"
                "Recursively show control group contents.\n\n"
                "  -h --help           Show this help\n"
+               "     --version        Show package version\n"
                "     --no-pager       Do not pipe output into a pager\n"
+               "  -a --all            Show all groups, including empty\n"
+               "  --full              Do not ellipsize output\n"
                "  -k                  Include kernel threads in output\n",
                program_invocation_short_name);
 }
@@ -48,12 +56,17 @@ static void help(void) {
 static int parse_argv(int argc, char *argv[]) {
 
         enum {
-                ARG_NO_PAGER = 0x100
+                ARG_NO_PAGER = 0x100,
+                ARG_VERSION,
+                ARG_FULL,
         };
 
         static const struct option options[] = {
                 { "help",      no_argument,       NULL, 'h'          },
+                { "version",   no_argument,       NULL, ARG_VERSION  },
                 { "no-pager",  no_argument,       NULL, ARG_NO_PAGER },
+                { "all",       no_argument,       NULL, 'a'          },
+                { "full",      no_argument,       NULL, ARG_FULL     },
                 { NULL,        0,                 NULL, 0            }
         };
 
@@ -62,7 +75,7 @@ static int parse_argv(int argc, char *argv[]) {
         assert(argc >= 1);
         assert(argv);
 
-        while ((c = getopt_long(argc, argv, "hk", options, NULL)) >= 0) {
+        while ((c = getopt_long(argc, argv, "hka", options, NULL)) >= 0) {
 
                 switch (c) {
 
@@ -70,10 +83,23 @@ static int parse_argv(int argc, char *argv[]) {
                         help();
                         return 0;
 
+                case ARG_VERSION:
+                        puts(PACKAGE_STRING);
+                        puts(SYSTEMD_FEATURES);
+                        return 0;
+
                 case ARG_NO_PAGER:
                         arg_no_pager = true;
                         break;
 
+                case 'a':
+                        arg_all = true;
+                        break;
+
+                case ARG_FULL:
+                        arg_full = true;
+                        break;
+
                 case 'k':
                         arg_kernel_threads = true;
                         break;
@@ -92,6 +118,7 @@ static int parse_argv(int argc, char *argv[]) {
 
 int main(int argc, char *argv[]) {
         int r = 0, retval = EXIT_FAILURE;
+        int output_flags;
 
         log_parse_environment();
         log_open();
@@ -104,8 +131,17 @@ int main(int argc, char *argv[]) {
                 goto finish;
         }
 
-        if (!arg_no_pager)
-                pager_open();
+        if (!arg_no_pager) {
+                r = pager_open(false);
+                if (r > 0) {
+                        if (arg_full == -1)
+                                arg_full = true;
+                }
+        }
+
+        output_flags =
+                arg_all * OUTPUT_SHOW_ALL |
+                (arg_full > 0) * OUTPUT_FULL_WIDTH;
 
         if (optind < argc) {
                 unsigned i;
@@ -114,13 +150,14 @@ int main(int argc, char *argv[]) {
                         int q;
                         printf("%s:\n", argv[i]);
 
-                        q = show_cgroup_by_path(argv[i], NULL, 0, arg_kernel_threads);
+                        q = show_cgroup_by_path(argv[i], NULL, 0,
+                                                arg_kernel_threads, output_flags);
                         if (q < 0)
                                 r = q;
                 }
 
         } else {
-                char *p;
+                char _cleanup_free_ *p;
 
                 p = get_current_dir_name();
                 if (!p) {
@@ -130,9 +167,10 @@ int main(int argc, char *argv[]) {
 
                 if (path_startswith(p, "/sys/fs/cgroup")) {
                         printf("Working Directory %s:\n", p);
-                        r = show_cgroup_by_path(p, NULL, 0, arg_kernel_threads);
+                        r = show_cgroup_by_path(p, NULL, 0,
+                                                arg_kernel_threads, output_flags);
                 } else {
-                        char *root = NULL;
+                        char _cleanup_free_ *root = NULL;
                         const char *t = NULL;
 
                         r = cg_get_by_pid(SYSTEMD_CGROUP_CONTROLLER, 1, &root);
@@ -145,11 +183,9 @@ int main(int argc, char *argv[]) {
                                 t = root[0] ? root : "/";
                         }
 
-                        r = show_cgroup(SYSTEMD_CGROUP_CONTROLLER, t, NULL, 0, arg_kernel_threads);
-                        free(root);
+                        r = show_cgroup(SYSTEMD_CGROUP_CONTROLLER, t, NULL, 0,
+                                        arg_kernel_threads, output_flags);
                 }
-
-                free(p);
         }
 
         if (r < 0)