perf subcmd: Create subcmd library

Move the subcommand-related files from perf to a new library named
libsubcmd.a.

Since we're moving files anyway, go ahead and rename 'exec_cmd.*' to
'exec-cmd.*' to be consistent with the naming of all the other files.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/c0a838d4c878ab17fee50998811612b2281355c1.1450193761.git.jpoimboe@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 0 insertions, 268 deletions

diff --git a/tools/perf/util/help.c b/tools/perf/util/help.c
deleted file mode 100644
index 8169480..0000000
--- a/tools/perf/util/help.c
+++ /dev/null
@@ -1,268 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <termios.h>
-#include <sys/ioctl.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <dirent.h>
-#include "subcmd-util.h"
-#include "help.h"
-#include "exec_cmd.h"
-
-void add_cmdname(struct cmdnames *cmds, const char *name, size_t len)
-{
-	struct cmdname *ent = malloc(sizeof(*ent) + len + 1);
-
-	ent->len = len;
-	memcpy(ent->name, name, len);
-	ent->name[len] = 0;
-
-	ALLOC_GROW(cmds->names, cmds->cnt + 1, cmds->alloc);
-	cmds->names[cmds->cnt++] = ent;
-}
-
-void clean_cmdnames(struct cmdnames *cmds)
-{
-	unsigned int i;
-
-	for (i = 0; i < cmds->cnt; ++i)
-		zfree(&cmds->names[i]);
-	zfree(&cmds->names);
-	cmds->cnt = 0;
-	cmds->alloc = 0;
-}
-
-int cmdname_compare(const void *a_, const void *b_)
-{
-	struct cmdname *a = *(struct cmdname **)a_;
-	struct cmdname *b = *(struct cmdname **)b_;
-	return strcmp(a->name, b->name);
-}
-
-void uniq(struct cmdnames *cmds)
-{
-	unsigned int i, j;
-
-	if (!cmds->cnt)
-		return;
-
-	for (i = j = 1; i < cmds->cnt; i++)
-		if (strcmp(cmds->names[i]->name, cmds->names[i-1]->name))
-			cmds->names[j++] = cmds->names[i];
-
-	cmds->cnt = j;
-}
-
-void exclude_cmds(struct cmdnames *cmds, struct cmdnames *excludes)
-{
-	size_t ci, cj, ei;
-	int cmp;
-
-	ci = cj = ei = 0;
-	while (ci < cmds->cnt && ei < excludes->cnt) {
-		cmp = strcmp(cmds->names[ci]->name, excludes->names[ei]->name);
-		if (cmp < 0)
-			cmds->names[cj++] = cmds->names[ci++];
-		else if (cmp == 0)
-			ci++, ei++;
-		else if (cmp > 0)
-			ei++;
-	}
-
-	while (ci < cmds->cnt)
-		cmds->names[cj++] = cmds->names[ci++];
-
-	cmds->cnt = cj;
-}
-
-static void get_term_dimensions(struct winsize *ws)
-{
-	char *s = getenv("LINES");
-
-	if (s != NULL) {
-		ws->ws_row = atoi(s);
-		s = getenv("COLUMNS");
-		if (s != NULL) {
-			ws->ws_col = atoi(s);
-			if (ws->ws_row && ws->ws_col)
-				return;
-		}
-	}
-#ifdef TIOCGWINSZ
-	if (ioctl(1, TIOCGWINSZ, ws) == 0 &&
-	    ws->ws_row && ws->ws_col)
-		return;
-#endif
-	ws->ws_row = 25;
-	ws->ws_col = 80;
-}
-
-static void pretty_print_string_list(struct cmdnames *cmds, int longest)
-{
-	int cols = 1, rows;
-	int space = longest + 1; /* min 1 SP between words */
-	struct winsize win;
-	int max_cols;
-	int i, j;
-
-	get_term_dimensions(&win);
-	max_cols = win.ws_col - 1; /* don't print *on* the edge */
-
-	if (space < max_cols)
-		cols = max_cols / space;
-	rows = (cmds->cnt + cols - 1) / cols;
-
-	for (i = 0; i < rows; i++) {
-		printf("  ");
-
-		for (j = 0; j < cols; j++) {
-			unsigned int n = j * rows + i;
-			unsigned int size = space;
-
-			if (n >= cmds->cnt)
-				break;
-			if (j == cols-1 || n + rows >= cmds->cnt)
-				size = 1;
-			printf("%-*s", size, cmds->names[n]->name);
-		}
-		putchar('\n');
-	}
-}
-
-static int is_executable(const char *name)
-{
-	struct stat st;
-
-	if (stat(name, &st) || /* stat, not lstat */
-	    !S_ISREG(st.st_mode))
-		return 0;
-
-	return st.st_mode & S_IXUSR;
-}
-
-static int has_extension(const char *filename, const char *ext)
-{
-	size_t len = strlen(filename);
-	size_t extlen = strlen(ext);
-
-	return len > extlen && !memcmp(filename + len - extlen, ext, extlen);
-}
-
-static void list_commands_in_dir(struct cmdnames *cmds,
-					 const char *path,
-					 const char *prefix)
-{
-	int prefix_len;
-	DIR *dir = opendir(path);
-	struct dirent *de;
-	char *buf = NULL;
-
-	if (!dir)
-		return;
-	if (!prefix)
-		prefix = "perf-";
-	prefix_len = strlen(prefix);
-
-	astrcatf(&buf, "%s/", path);
-
-	while ((de = readdir(dir)) != NULL) {
-		int entlen;
-
-		if (prefixcmp(de->d_name, prefix))
-			continue;
-
-		astrcat(&buf, de->d_name);
-		if (!is_executable(buf))
-			continue;
-
-		entlen = strlen(de->d_name) - prefix_len;
-		if (has_extension(de->d_name, ".exe"))
-			entlen -= 4;
-
-		add_cmdname(cmds, de->d_name + prefix_len, entlen);
-	}
-	closedir(dir);
-	free(buf);
-}
-
-void load_command_list(const char *prefix,
-		struct cmdnames *main_cmds,
-		struct cmdnames *other_cmds)
-{
-	const char *env_path = getenv("PATH");
-	char *exec_path = get_argv_exec_path();
-
-	if (exec_path) {
-		list_commands_in_dir(main_cmds, exec_path, prefix);
-		qsort(main_cmds->names, main_cmds->cnt,
-		      sizeof(*main_cmds->names), cmdname_compare);
-		uniq(main_cmds);
-	}
-
-	if (env_path) {
-		char *paths, *path, *colon;
-		path = paths = strdup(env_path);
-		while (1) {
-			if ((colon = strchr(path, ':')))
-				*colon = 0;
-			if (!exec_path || strcmp(path, exec_path))
-				list_commands_in_dir(other_cmds, path, prefix);
-
-			if (!colon)
-				break;
-			path = colon + 1;
-		}
-		free(paths);
-
-		qsort(other_cmds->names, other_cmds->cnt,
-		      sizeof(*other_cmds->names), cmdname_compare);
-		uniq(other_cmds);
-	}
-	free(exec_path);
-	exclude_cmds(other_cmds, main_cmds);
-}
-
-void list_commands(const char *title, struct cmdnames *main_cmds,
-		   struct cmdnames *other_cmds)
-{
-	unsigned int i, longest = 0;
-
-	for (i = 0; i < main_cmds->cnt; i++)
-		if (longest < main_cmds->names[i]->len)
-			longest = main_cmds->names[i]->len;
-	for (i = 0; i < other_cmds->cnt; i++)
-		if (longest < other_cmds->names[i]->len)
-			longest = other_cmds->names[i]->len;
-
-	if (main_cmds->cnt) {
-		char *exec_path = get_argv_exec_path();
-		printf("available %s in '%s'\n", title, exec_path);
-		printf("----------------");
-		mput_char('-', strlen(title) + strlen(exec_path));
-		putchar('\n');
-		pretty_print_string_list(main_cmds, longest);
-		putchar('\n');
-		free(exec_path);
-	}
-
-	if (other_cmds->cnt) {
-		printf("%s available from elsewhere on your $PATH\n", title);
-		printf("---------------------------------------");
-		mput_char('-', strlen(title));
-		putchar('\n');
-		pretty_print_string_list(other_cmds, longest);
-		putchar('\n');
-	}
-}
-
-int is_in_cmdlist(struct cmdnames *c, const char *s)
-{
-	unsigned int i;
-
-	for (i = 0; i < c->cnt; i++)
-		if (!strcmp(s, c->names[i]->name))
-			return 1;
-	return 0;
-}