diff options
Diffstat (limited to 'meta/classes/devshell.bbclass')
-rw-r--r-- | meta/classes/devshell.bbclass | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/meta/classes/devshell.bbclass b/meta/classes/devshell.bbclass new file mode 100644 index 0000000000..41164a3f33 --- /dev/null +++ b/meta/classes/devshell.bbclass | |||
@@ -0,0 +1,154 @@ | |||
1 | inherit terminal | ||
2 | |||
3 | DEVSHELL = "${SHELL}" | ||
4 | |||
5 | python do_devshell () { | ||
6 | if d.getVarFlag("do_devshell", "manualfakeroot"): | ||
7 | d.prependVar("DEVSHELL", "pseudo ") | ||
8 | fakeenv = d.getVar("FAKEROOTENV", True).split() | ||
9 | for f in fakeenv: | ||
10 | k = f.split("=") | ||
11 | d.setVar(k[0], k[1]) | ||
12 | d.appendVar("OE_TERMINAL_EXPORTS", " " + k[0]) | ||
13 | d.delVarFlag("do_devshell", "fakeroot") | ||
14 | |||
15 | oe_terminal(d.getVar('DEVSHELL', True), 'OpenEmbedded Developer Shell', d) | ||
16 | } | ||
17 | |||
18 | addtask devshell after do_patch | ||
19 | |||
20 | do_devshell[dirs] = "${S}" | ||
21 | do_devshell[nostamp] = "1" | ||
22 | |||
23 | # devshell and fakeroot/pseudo need careful handling since only the final | ||
24 | # command should run under fakeroot emulation, any X connection should | ||
25 | # be done as the normal user. We therfore carefully construct the envionment | ||
26 | # manually | ||
27 | python () { | ||
28 | if d.getVarFlag("do_devshell", "fakeroot"): | ||
29 | # We need to signal our code that we want fakeroot however we | ||
30 | # can't manipulate the environment and variables here yet (see YOCTO #4795) | ||
31 | d.setVarFlag("do_devshell", "manualfakeroot", "1") | ||
32 | d.delVarFlag("do_devshell", "fakeroot") | ||
33 | } | ||
34 | |||
35 | def devpyshell(d): | ||
36 | |||
37 | import code | ||
38 | import select | ||
39 | import signal | ||
40 | import termios | ||
41 | |||
42 | m, s = os.openpty() | ||
43 | sname = os.ttyname(s) | ||
44 | |||
45 | def noechoicanon(fd): | ||
46 | old = termios.tcgetattr(fd) | ||
47 | old[3] = old[3] &~ termios.ECHO &~ termios.ICANON | ||
48 | # &~ termios.ISIG | ||
49 | termios.tcsetattr(fd, termios.TCSADRAIN, old) | ||
50 | |||
51 | # No echo or buffering over the pty | ||
52 | noechoicanon(s) | ||
53 | |||
54 | pid = os.fork() | ||
55 | if pid: | ||
56 | os.close(m) | ||
57 | oe_terminal("oepydevshell-internal.py %s %d" % (sname, pid), 'OpenEmbedded Developer PyShell', d) | ||
58 | os._exit(0) | ||
59 | else: | ||
60 | os.close(s) | ||
61 | |||
62 | os.dup2(m, sys.stdin.fileno()) | ||
63 | os.dup2(m, sys.stdout.fileno()) | ||
64 | os.dup2(m, sys.stderr.fileno()) | ||
65 | |||
66 | sys.stdout = os.fdopen(sys.stdout.fileno(), 'w', 0) | ||
67 | sys.stdin = os.fdopen(sys.stdin.fileno(), 'r', 0) | ||
68 | |||
69 | bb.utils.nonblockingfd(sys.stdout) | ||
70 | bb.utils.nonblockingfd(sys.stderr) | ||
71 | bb.utils.nonblockingfd(sys.stdin) | ||
72 | |||
73 | _context = { | ||
74 | "os": os, | ||
75 | "bb": bb, | ||
76 | "time": time, | ||
77 | "d": d, | ||
78 | } | ||
79 | |||
80 | ps1 = "pydevshell> " | ||
81 | ps2 = "... " | ||
82 | buf = [] | ||
83 | more = False | ||
84 | |||
85 | i = code.InteractiveInterpreter(locals=_context) | ||
86 | print("OE PyShell (PN = %s)\n" % d.getVar("PN", True)) | ||
87 | |||
88 | def prompt(more): | ||
89 | if more: | ||
90 | prompt = ps2 | ||
91 | else: | ||
92 | prompt = ps1 | ||
93 | sys.stdout.write(prompt) | ||
94 | |||
95 | # Restore Ctrl+C since bitbake masks this | ||
96 | def signal_handler(signal, frame): | ||
97 | raise KeyboardInterrupt | ||
98 | signal.signal(signal.SIGINT, signal_handler) | ||
99 | |||
100 | child = None | ||
101 | |||
102 | prompt(more) | ||
103 | while True: | ||
104 | try: | ||
105 | try: | ||
106 | (r, _, _) = select.select([sys.stdin], [], [], 1) | ||
107 | if not r: | ||
108 | continue | ||
109 | line = sys.stdin.readline().strip() | ||
110 | if not line: | ||
111 | prompt(more) | ||
112 | continue | ||
113 | except EOFError as e: | ||
114 | sys.stdout.write("\n") | ||
115 | except (OSError, IOError) as e: | ||
116 | if e.errno == 11: | ||
117 | continue | ||
118 | if e.errno == 5: | ||
119 | return | ||
120 | raise | ||
121 | else: | ||
122 | if not child: | ||
123 | child = int(line) | ||
124 | continue | ||
125 | buf.append(line) | ||
126 | source = "\n".join(buf) | ||
127 | more = i.runsource(source, "<pyshell>") | ||
128 | if not more: | ||
129 | buf = [] | ||
130 | prompt(more) | ||
131 | except KeyboardInterrupt: | ||
132 | i.write("\nKeyboardInterrupt\n") | ||
133 | buf = [] | ||
134 | more = False | ||
135 | prompt(more) | ||
136 | except SystemExit: | ||
137 | # Easiest way to ensure everything exits | ||
138 | os.kill(child, signal.SIGTERM) | ||
139 | break | ||
140 | |||
141 | python do_devpyshell() { | ||
142 | import signal | ||
143 | |||
144 | try: | ||
145 | devpyshell(d) | ||
146 | except SystemExit: | ||
147 | # Stop the SIGTERM above causing an error exit code | ||
148 | return | ||
149 | finally: | ||
150 | return | ||
151 | } | ||
152 | addtask devpyshell after do_patch | ||
153 | |||
154 | do_devpyshell[nostamp] = "1" | ||