Mercurial > hg
annotate setup_osutil_cffi.py @ 30306:5581b294f3c6
help: show help for disabled extensions (issue5228)
This patch does not exactly solve issue5228 but it results in a better
condition on this issue. For disabled extensions, we used to parse the
module and get the first occurrences of docstring and then return the first
line of that as an introductory heading of extension. This is what we get
today.
This patch returns the whole docstring of the module as a help for extension,
which is more informative. There are some modules which don't have much
docstring at top level except the heading so those are unaffected by this
change. To follow the existing trend of showing commands either we have to
load the extension or have a very ugly parsing method which don't even assure
correctness.
author | Pulkit Goyal <7895pulkit@gmail.com> |
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date | Sun, 06 Nov 2016 06:54:31 +0530 |
parents | a043c6d372db |
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rev | line source |
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1 from __future__ import absolute_import |
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2 |
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3 import cffi |
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4 |
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5 ffi = cffi.FFI() |
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6 ffi.set_source("_osutil_cffi", """ |
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7 #include <sys/attr.h> |
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8 #include <sys/vnode.h> |
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9 #include <unistd.h> |
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10 #include <fcntl.h> |
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11 #include <time.h> |
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12 |
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13 typedef struct val_attrs { |
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14 uint32_t length; |
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15 attribute_set_t returned; |
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16 attrreference_t name_info; |
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17 fsobj_type_t obj_type; |
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18 struct timespec mtime; |
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19 uint32_t accessmask; |
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20 off_t datalength; |
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21 } __attribute__((aligned(4), packed)) val_attrs_t; |
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22 """, include_dirs=['mercurial']) |
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23 ffi.cdef(''' |
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24 |
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25 typedef uint32_t attrgroup_t; |
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26 |
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27 typedef struct attrlist { |
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28 uint16_t bitmapcount; /* number of attr. bit sets in list */ |
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29 uint16_t reserved; /* (to maintain 4-byte alignment) */ |
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30 attrgroup_t commonattr; /* common attribute group */ |
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31 attrgroup_t volattr; /* volume attribute group */ |
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32 attrgroup_t dirattr; /* directory attribute group */ |
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33 attrgroup_t fileattr; /* file attribute group */ |
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34 attrgroup_t forkattr; /* fork attribute group */ |
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35 ...; |
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36 }; |
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37 |
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38 typedef struct attribute_set { |
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39 ...; |
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40 } attribute_set_t; |
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41 |
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42 typedef struct attrreference { |
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43 int attr_dataoffset; |
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44 int attr_length; |
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45 ...; |
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46 } attrreference_t; |
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47 |
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48 typedef int ... off_t; |
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49 |
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50 typedef struct val_attrs { |
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51 uint32_t length; |
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52 attribute_set_t returned; |
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53 attrreference_t name_info; |
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54 uint32_t obj_type; |
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55 struct timespec mtime; |
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56 uint32_t accessmask; |
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57 off_t datalength; |
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58 ...; |
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59 } val_attrs_t; |
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60 |
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61 /* the exact layout of the above struct will be figured out during build time */ |
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62 |
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63 typedef int ... time_t; |
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64 |
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65 typedef struct timespec { |
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66 time_t tv_sec; |
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67 ...; |
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68 }; |
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69 |
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70 int getattrlist(const char* path, struct attrlist * attrList, void * attrBuf, |
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71 size_t attrBufSize, unsigned int options); |
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72 |
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73 int getattrlistbulk(int dirfd, struct attrlist * attrList, void * attrBuf, |
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74 size_t attrBufSize, uint64_t options); |
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75 |
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76 #define ATTR_BIT_MAP_COUNT ... |
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77 #define ATTR_CMN_NAME ... |
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78 #define ATTR_CMN_OBJTYPE ... |
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79 #define ATTR_CMN_MODTIME ... |
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80 #define ATTR_CMN_ACCESSMASK ... |
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81 #define ATTR_CMN_ERROR ... |
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82 #define ATTR_CMN_RETURNED_ATTRS ... |
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83 #define ATTR_FILE_DATALENGTH ... |
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84 |
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85 #define VREG ... |
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86 #define VDIR ... |
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87 #define VLNK ... |
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88 #define VBLK ... |
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89 #define VCHR ... |
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90 #define VFIFO ... |
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91 #define VSOCK ... |
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92 |
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93 #define S_IFMT ... |
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94 |
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95 int open(const char *path, int oflag, int perm); |
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96 int close(int); |
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97 |
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98 #define O_RDONLY ... |
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99 ''') |
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100 |
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101 if __name__ == '__main__': |
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102 ffi.compile() |