-
Notifications
You must be signed in to change notification settings - Fork 1
/
common.c
227 lines (184 loc) · 7.48 KB
/
common.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
#include <stdio.h> // printf
#include <string.h>
#include <ctype.h>
#include <stdlib.h> // exit
#include <unistd.h> // fork, wait, execvp, chdir, pid_t
#include "constants.h"
#include "welcome.h" // welcome screen constants
#include "chalk.h" // color constants
#include "execute.h"
#include "parse.h"
// === Helpers ===
void printWelcome ()
{
printf("%s%s%s", KYELLOW, WELCOME_L1_Y, KNORMAL);
printf("%s%s%s", KBLUE, WELCOME_L1_B, KNORMAL);
printf("%s%s%s", KCYAN, WELCOME_L1_C, KNORMAL);
printf("%s%s%s", KWHITE, WELCOME_L1_W, KNORMAL);
printf("%s%s%s", KRED, WELCOME_L2_R, KNORMAL);
printf("%s%s%s", KGREEN, WELCOME_L2_G, KNORMAL);
printf("%s%s%s", KYELLOW, WELCOME_L2_Y, KNORMAL);
printf("%s%s%s", KBLUE, WELCOME_L2_B, KNORMAL);
printf("%s%s%s", KMAGENTA, WELCOME_L2_M, KNORMAL);
printf("%s%s%s", KCYAN, WELCOME_L2_C, KNORMAL);
printf("%s%s%s", KWHITE, WELCOME_L2_W, KNORMAL);
printf("%s%s%s", KRED, WELCOME_L3_R, KNORMAL);
printf("%s%s%s", KGREEN, WELCOME_L3_G, KNORMAL);
printf("%s%s%s", KYELLOW, WELCOME_L3_Y, KNORMAL);
printf("%s%s%s", KBLUE, WELCOME_L3_B, KNORMAL);
printf("%s%s%s", KMAGENTA, WELCOME_L3_M, KNORMAL);
printf("%s%s%s", KCYAN, WELCOME_L3_C, KNORMAL);
printf("%s%s%s", KWHITE, WELCOME_L3_W, KNORMAL);
printf("%s%s%s", KRED, WELCOME_L4_R, KNORMAL);
printf("%s%s%s", KGREEN, WELCOME_L4_G, KNORMAL);
printf("%s%s%s", KYELLOW, WELCOME_L4_Y, KNORMAL);
printf("%s%s%s", KBLUE, WELCOME_L4_B, KNORMAL);
printf("%s%s%s", KMAGENTA, WELCOME_L4_M, KNORMAL);
printf("%s%s%s", KCYAN, WELCOME_L4_C, KNORMAL);
printf("%s%s%s", KWHITE, WELCOME_L4_W, KNORMAL);
printf("%s%s%s", KRED, WELCOME_L5_R, KNORMAL);
printf("%s%s%s", KGREEN, WELCOME_L5_G, KNORMAL);
printf("%s%s%s", KYELLOW, WELCOME_L5_Y, KNORMAL);
printf("%s%s%s", KBLUE, WELCOME_L5_B, KNORMAL);
printf("%s%s%s", KMAGENTA, WELCOME_L5_M, KNORMAL);
printf("%s%s%s", KCYAN, WELCOME_L5_C, KNORMAL);
printf("%s%s%s", KWHITE, WELCOME_L5_W, KNORMAL);
printf("%s%s%s", KRED, WELCOME_L6_R, KNORMAL);
printf("%s%s%s", KGREEN, WELCOME_L6_G, KNORMAL);
printf("%s%s%s", KYELLOW, WELCOME_L6_Y, KNORMAL);
printf("%s%s%s", KBLUE, WELCOME_L6_B, KNORMAL);
printf("%s%s%s", KMAGENTA, WELCOME_L6_M, KNORMAL);
printf("%s%s%s", KCYAN, WELCOME_L6_C, KNORMAL);
printf("%s%s%s", KWHITE, WELCOME_L6_W, KNORMAL);
printf("%s%s%s", KRED, WELCOME_L7_R, KNORMAL);
printf("%s%s%s", KGREEN, WELCOME_L7_G, KNORMAL);
printf("%s%s%s", KYELLOW, WELCOME_L7_Y, KNORMAL);
printf("%s%s%s", KBLUE, WELCOME_L7_B, KNORMAL);
printf("%s%s%s", KMAGENTA, WELCOME_L7_M, KNORMAL);
printf("%s%s%s", KCYAN, WELCOME_L7_C, KNORMAL);
printf("%s%s%s", KWHITE, WELCOME_L7_W, KNORMAL);
printf("%s", WELCOME_BLANK);
printf("%s%s%s", KRED, WELCOME_L9_R, KNORMAL);
printf("%s%s%s", KGREEN, WELCOME_L9_G, KNORMAL);
printf("%s%s%s", KYELLOW, WELCOME_L9_Y, KNORMAL);
printf("%s%s%s", KBLUE, WELCOME_L9_B, KNORMAL);
printf("%s%s%s", KMAGENTA, WELCOME_L9_M, KNORMAL);
printf("%s%s%s", KCYAN, WELCOME_L9_C, KNORMAL);
printf("%s%s%s", KWHITE, WELCOME_L9_W, KNORMAL);
printf("%s", WELCOME_BLANK);
printf("%s%s%s", KRED, WELCOME_L11_R, KNORMAL);
printf("%s%s%s", KGREEN, WELCOME_L11_G, KNORMAL);
printf("%s%s%s", KYELLOW, WELCOME_L11_Y, KNORMAL);
printf("%s%s%s", KBLUE, WELCOME_L11_B, KNORMAL);
printf("%s", WELCOME_BLANK);
printf("%s%s%s", KMAGENTA, WELCOME_L13_M, KNORMAL);
printf("%s%s%s", KCYAN, WELCOME_L13_C, KNORMAL);
printf("%s%s%s", KWHITE, WELCOME_L13_W, KNORMAL);
printf("%s%s%s", KRED, WELCOME_L13_R, KNORMAL);
printf("%s%s%s", KGREEN, WELCOME_L13_G, KNORMAL);
printf("%s%s%s", KYELLOW, WELCOME_L13_Y, KNORMAL);
printf("%s%s%s", KBLUE, WELCOME_L13_B, KNORMAL);
printf("%s", WELCOME_BLANK);
printf("%s%s%s", KRED, WELCOME_L15_R, KNORMAL);
printf("%s%s%s", KGREEN, WELCOME_L15_G, KNORMAL);
printf("%s%s%s", KYELLOW, WELCOME_L15_Y, KNORMAL);
printf("%s%s%s", KBLUE, WELCOME_L15_B, KNORMAL);
printf("%s%s%s", KMAGENTA, WELCOME_L15_M, KNORMAL);
printf("%s%s%s", KCYAN, WELCOME_L15_C, KNORMAL);
printf("%s%s%s", KWHITE, WELCOME_L15_W, KNORMAL);
}
// Note: This function returns a pointer to a substring of the original string.
// If the given string was allocated dynamically, the caller must not overwrite
// that pointer with the returned value, since the original pointer must be
// deallocated using the same allocator with which it was allocated. The return
// value must NOT be deallocated using free() etc.
// Source: http://stackoverflow.com/a/122721/2578205
char *trimwhitespace(char *str)
{
char *end;
// Trim leading space
while(isspace(*str)) str++;
if(*str == 0) // All spaces?
return str;
// Trim trailing space
end = str + strlen(str) - 1;
while(end > str && isspace(*end)) end--;
// Write new null terminator
*(end+1) = 0;
return str;
}
int getOutputOfCmd(char *cmd, char **cmdv, char *buff, int buffLen)
{
parse(cmd, cmdv); /* parse the line */
// fprintf(stderr, "Cmd: '%s %s'\n", cmdv[0], cmdv[1]);
// Create pipe file descriptors
int fdIn[2]; // [read, write]
int fdOut[2]; // [read, write]
// Create pipe, check for failure
if (pipe(fdIn) < 0)
{
perror("Pipe fdIn Failed");
exit(1);
}
// Create pipe, check for failure
if (pipe(fdOut) < 0)
{
perror("Pipe fdOut Failed");
exit(1);
}
int status;
execCmd(cmdv, fdIn, fdOut, false, &status);
// The Output of this executionTree should go to stdout
close(fdOut[1]); /* close write end of pipe */
close(fdIn[1]); /* close write end of pipe */
int len = (sizeof(char *) * buffLen);
// fprintf(stderr, "sizeof(buff) : %i\n", len);
int nbytes = read(fdOut[0], buff, len);
close(fdOut[0]); /* close read end of pipe */
close(fdIn[0]); /* close read end of pipe */
// printf("Current Git Branch After: '%s' '%i'\n", buff, nbytes);
return nbytes;
}
int getDate(char *buff)
{
char *cmd = "date +%H:%M:%S";
char *cmdv[2];
int buffLen = 10;
int nbytes = getOutputOfCmd(cmd, cmdv, buff, buffLen);
trimwhitespace(buff);
return nbytes;
}
int getCurrentGitBranch(char *buff)
{
char *cmd = "git symbolic-ref --short -q HEAD";
char *cmdv[6];
int buffLen = GIT_BRANCH_LENGTH;
int nbytes = getOutputOfCmd(cmd, cmdv, buff, buffLen);
// printf("Current Git Branch Befor: '%s' '%i'\n", buff, nbytes);
trimwhitespace(buff);
// This fixes an error where it returns
// a branch with a space and a trailing character that
// breaks the terminal
// and causes segfaults.
// This will fillin NULL character for every character
// after a space, etc.
char *p = buff;
// While not the end of line
bool foundSpace = false;
while (*p != '\0')
{
// printf("Top of while loop\n");
// While there are spaces, tabs or new lines replace with null
// printf("Line before nested while loop 1: %s\n", p);
if (foundSpace || *p == ' ' || *p == '\t' || *p == '\n')
{
// printf("Replace space, tab, or new line: %c\n", *p);
*p++ = '\0';
foundSpace = true;
}
// printf("Line after nested while loop 1: %s\n", p);
p++;
}
// printf("Current Git Branch After: '%s' '%i'\n", buff, nbytes);
return nbytes;
}