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Commit | Line | Data |
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07800601 | 1 | #include "cache.h" |
148be2c1 | 2 | #include "../builtin.h" |
07800601 | 3 | #include "exec_cmd.h" |
07800601 | 4 | #include "help.h" |
901421a5 | 5 | #include "subcmd-util.h" |
07800601 | 6 | |
f37a291c | 7 | void add_cmdname(struct cmdnames *cmds, const char *name, size_t len) |
07800601 IM |
8 | { |
9 | struct cmdname *ent = malloc(sizeof(*ent) + len + 1); | |
10 | ||
11 | ent->len = len; | |
12 | memcpy(ent->name, name, len); | |
13 | ent->name[len] = 0; | |
14 | ||
15 | ALLOC_GROW(cmds->names, cmds->cnt + 1, cmds->alloc); | |
16 | cmds->names[cmds->cnt++] = ent; | |
17 | } | |
18 | ||
5feaac24 | 19 | void clean_cmdnames(struct cmdnames *cmds) |
07800601 | 20 | { |
f37a291c IM |
21 | unsigned int i; |
22 | ||
07800601 | 23 | for (i = 0; i < cmds->cnt; ++i) |
74cf249d ACM |
24 | zfree(&cmds->names[i]); |
25 | zfree(&cmds->names); | |
07800601 IM |
26 | cmds->cnt = 0; |
27 | cmds->alloc = 0; | |
28 | } | |
29 | ||
5feaac24 | 30 | int cmdname_compare(const void *a_, const void *b_) |
07800601 IM |
31 | { |
32 | struct cmdname *a = *(struct cmdname **)a_; | |
33 | struct cmdname *b = *(struct cmdname **)b_; | |
34 | return strcmp(a->name, b->name); | |
35 | } | |
36 | ||
5feaac24 | 37 | void uniq(struct cmdnames *cmds) |
07800601 | 38 | { |
f37a291c | 39 | unsigned int i, j; |
07800601 IM |
40 | |
41 | if (!cmds->cnt) | |
42 | return; | |
43 | ||
44 | for (i = j = 1; i < cmds->cnt; i++) | |
45 | if (strcmp(cmds->names[i]->name, cmds->names[i-1]->name)) | |
46 | cmds->names[j++] = cmds->names[i]; | |
47 | ||
48 | cmds->cnt = j; | |
49 | } | |
50 | ||
51 | void exclude_cmds(struct cmdnames *cmds, struct cmdnames *excludes) | |
52 | { | |
f37a291c | 53 | size_t ci, cj, ei; |
07800601 IM |
54 | int cmp; |
55 | ||
56 | ci = cj = ei = 0; | |
57 | while (ci < cmds->cnt && ei < excludes->cnt) { | |
58 | cmp = strcmp(cmds->names[ci]->name, excludes->names[ei]->name); | |
59 | if (cmp < 0) | |
60 | cmds->names[cj++] = cmds->names[ci++]; | |
61 | else if (cmp == 0) | |
62 | ci++, ei++; | |
63 | else if (cmp > 0) | |
64 | ei++; | |
65 | } | |
66 | ||
67 | while (ci < cmds->cnt) | |
68 | cmds->names[cj++] = cmds->names[ci++]; | |
69 | ||
70 | cmds->cnt = cj; | |
71 | } | |
72 | ||
73 | static void pretty_print_string_list(struct cmdnames *cmds, int longest) | |
74 | { | |
75 | int cols = 1, rows; | |
76 | int space = longest + 1; /* min 1 SP between words */ | |
a41794cd ACM |
77 | struct winsize win; |
78 | int max_cols; | |
07800601 IM |
79 | int i, j; |
80 | ||
a41794cd ACM |
81 | get_term_dimensions(&win); |
82 | max_cols = win.ws_col - 1; /* don't print *on* the edge */ | |
83 | ||
07800601 IM |
84 | if (space < max_cols) |
85 | cols = max_cols / space; | |
86 | rows = (cmds->cnt + cols - 1) / cols; | |
87 | ||
88 | for (i = 0; i < rows; i++) { | |
89 | printf(" "); | |
90 | ||
91 | for (j = 0; j < cols; j++) { | |
f37a291c IM |
92 | unsigned int n = j * rows + i; |
93 | unsigned int size = space; | |
94 | ||
07800601 IM |
95 | if (n >= cmds->cnt) |
96 | break; | |
97 | if (j == cols-1 || n + rows >= cmds->cnt) | |
98 | size = 1; | |
99 | printf("%-*s", size, cmds->names[n]->name); | |
100 | } | |
101 | putchar('\n'); | |
102 | } | |
103 | } | |
104 | ||
105 | static int is_executable(const char *name) | |
106 | { | |
107 | struct stat st; | |
108 | ||
109 | if (stat(name, &st) || /* stat, not lstat */ | |
110 | !S_ISREG(st.st_mode)) | |
111 | return 0; | |
112 | ||
07800601 IM |
113 | return st.st_mode & S_IXUSR; |
114 | } | |
115 | ||
116 | static void list_commands_in_dir(struct cmdnames *cmds, | |
117 | const char *path, | |
118 | const char *prefix) | |
119 | { | |
120 | int prefix_len; | |
121 | DIR *dir = opendir(path); | |
122 | struct dirent *de; | |
901421a5 | 123 | char *buf = NULL; |
07800601 IM |
124 | |
125 | if (!dir) | |
126 | return; | |
127 | if (!prefix) | |
128 | prefix = "perf-"; | |
129 | prefix_len = strlen(prefix); | |
130 | ||
901421a5 | 131 | astrcatf(&buf, "%s/", path); |
07800601 IM |
132 | |
133 | while ((de = readdir(dir)) != NULL) { | |
134 | int entlen; | |
135 | ||
136 | if (prefixcmp(de->d_name, prefix)) | |
137 | continue; | |
138 | ||
901421a5 JP |
139 | astrcat(&buf, de->d_name); |
140 | if (!is_executable(buf)) | |
07800601 IM |
141 | continue; |
142 | ||
143 | entlen = strlen(de->d_name) - prefix_len; | |
144 | if (has_extension(de->d_name, ".exe")) | |
145 | entlen -= 4; | |
146 | ||
147 | add_cmdname(cmds, de->d_name + prefix_len, entlen); | |
148 | } | |
149 | closedir(dir); | |
901421a5 | 150 | free(buf); |
07800601 IM |
151 | } |
152 | ||
153 | void load_command_list(const char *prefix, | |
154 | struct cmdnames *main_cmds, | |
155 | struct cmdnames *other_cmds) | |
156 | { | |
157 | const char *env_path = getenv("PATH"); | |
46113a54 | 158 | char *exec_path = get_argv_exec_path(); |
07800601 IM |
159 | |
160 | if (exec_path) { | |
161 | list_commands_in_dir(main_cmds, exec_path, prefix); | |
162 | qsort(main_cmds->names, main_cmds->cnt, | |
163 | sizeof(*main_cmds->names), cmdname_compare); | |
164 | uniq(main_cmds); | |
165 | } | |
166 | ||
167 | if (env_path) { | |
168 | char *paths, *path, *colon; | |
169 | path = paths = strdup(env_path); | |
170 | while (1) { | |
171 | if ((colon = strchr(path, PATH_SEP))) | |
172 | *colon = 0; | |
173 | if (!exec_path || strcmp(path, exec_path)) | |
174 | list_commands_in_dir(other_cmds, path, prefix); | |
175 | ||
176 | if (!colon) | |
177 | break; | |
178 | path = colon + 1; | |
179 | } | |
180 | free(paths); | |
181 | ||
182 | qsort(other_cmds->names, other_cmds->cnt, | |
183 | sizeof(*other_cmds->names), cmdname_compare); | |
184 | uniq(other_cmds); | |
185 | } | |
c4068f51 | 186 | free(exec_path); |
07800601 IM |
187 | exclude_cmds(other_cmds, main_cmds); |
188 | } | |
189 | ||
190 | void list_commands(const char *title, struct cmdnames *main_cmds, | |
191 | struct cmdnames *other_cmds) | |
192 | { | |
f37a291c | 193 | unsigned int i, longest = 0; |
07800601 IM |
194 | |
195 | for (i = 0; i < main_cmds->cnt; i++) | |
196 | if (longest < main_cmds->names[i]->len) | |
197 | longest = main_cmds->names[i]->len; | |
198 | for (i = 0; i < other_cmds->cnt; i++) | |
199 | if (longest < other_cmds->names[i]->len) | |
200 | longest = other_cmds->names[i]->len; | |
201 | ||
202 | if (main_cmds->cnt) { | |
46113a54 | 203 | char *exec_path = get_argv_exec_path(); |
07800601 IM |
204 | printf("available %s in '%s'\n", title, exec_path); |
205 | printf("----------------"); | |
206 | mput_char('-', strlen(title) + strlen(exec_path)); | |
207 | putchar('\n'); | |
208 | pretty_print_string_list(main_cmds, longest); | |
209 | putchar('\n'); | |
c4068f51 | 210 | free(exec_path); |
07800601 IM |
211 | } |
212 | ||
213 | if (other_cmds->cnt) { | |
214 | printf("%s available from elsewhere on your $PATH\n", title); | |
215 | printf("---------------------------------------"); | |
216 | mput_char('-', strlen(title)); | |
217 | putchar('\n'); | |
218 | pretty_print_string_list(other_cmds, longest); | |
219 | putchar('\n'); | |
220 | } | |
221 | } | |
222 | ||
223 | int is_in_cmdlist(struct cmdnames *c, const char *s) | |
224 | { | |
f37a291c IM |
225 | unsigned int i; |
226 | ||
07800601 IM |
227 | for (i = 0; i < c->cnt; i++) |
228 | if (!strcmp(s, c->names[i]->name)) | |
229 | return 1; | |
230 | return 0; | |
231 | } |