Rev 24 | Rev 78 | Go to most recent revision | Show entire file | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed
Rev 24 | Rev 77 | ||
---|---|---|---|
Line 1... | Line 1... | ||
1 | <?php |
1 | <?php |
2 | 2 | ||
3 | /* |
3 | /* |
4 | * PHP git functions |
4 | * PHP git functions |
5 | * Copyright 2021 Daniel Marschall, ViaThinkSoft |
5 | * Copyright 2021 - 2023 Daniel Marschall, ViaThinkSoft |
6 | * Revision 2021-12-29 |
6 | * Revision 2023-04-09 |
7 | * |
7 | * |
8 | * Licensed under the Apache License, Version 2.0 (the "License"); |
8 | * Licensed under the Apache License, Version 2.0 (the "License"); |
9 | * you may not use this file except in compliance with the License. |
9 | * you may not use this file except in compliance with the License. |
10 | * You may obtain a copy of the License at |
10 | * You may obtain a copy of the License at |
11 | * |
11 | * |
Line 74... | Line 74... | ||
74 | if ($pack_files) foreach ($pack_files as $basename) { |
74 | if ($pack_files) foreach ($pack_files as $basename) { |
75 | $basename = substr(basename($basename),0,strlen(basename($basename))-5); |
75 | $basename = substr(basename($basename),0,strlen(basename($basename))-5); |
76 | try { |
76 | try { |
77 | return git_read_object($commit_object, |
77 | return git_read_object($commit_object, |
78 | $objects_dir.'/pack/'.$basename.'.idx', |
78 | $objects_dir.'/pack/'.$basename.'.idx', |
79 | $objects_dir.'/pack/'.$basename.'.pack', |
79 | $objects_dir.'/pack/'.$basename.'.pack' |
80 | false |
- | |
81 | ); |
80 | ); |
82 | } catch (Exception $e) { |
81 | } catch (Exception $e) { |
83 | $last_exception = $e; |
82 | $last_exception = $e; |
84 | } |
83 | } |
85 | } |
84 | } |
Line 99... | Line 98... | ||
99 | $fp = fopen($idx_file, 'rb'); |
98 | $fp = fopen($idx_file, 'rb'); |
100 | if (!$fp) throw new Exception("Cannot open index file $idx_file"); |
99 | if (!$fp) throw new Exception("Cannot open index file $idx_file"); |
101 | 100 | ||
102 | // Read version |
101 | // Read version |
103 | fseek($fp, 0); |
102 | fseek($fp, 0); |
104 | $unpacked = unpack('N', fread($fp, 4)); // vorzeichenloser Long-Typ (immer 32 Bit, Byte-Folge Big-Endian) |
103 | $unpacked = unpack('H8', fread($fp, 4)); // H8 = 8x "Hex string, high nibble first" |
105 | if ($unpacked[1] === 0xFF744F63) { |
104 | if ($unpacked[1] === bin2hex("\377tOc")) { |
106 | $version = unpack('N', fread($fp, 4))[1]; // vorzeichenloser Long-Typ (immer 32 Bit, Byte-Folge Big-Endian) |
105 | $version = unpack('N', fread($fp, 4))[1]; // N = "unsigned long (always 32 bit, big endian byte order)" |
107 | $fanout_offset = 8; |
106 | $fanout_offset = 8; |
108 | if ($version != 2) throw new Exception("Version $version unknown"); |
107 | if ($version != 2) throw new Exception("Version $version unknown"); |
109 | } else { |
108 | } else { |
110 | $version = 1; |
109 | $version = 1; |
111 | $fanout_offset = 0; |
110 | $fanout_offset = 0; |
Line 212... | Line 211... | ||
212 | 211 | ||
213 | if ($debug) echo "Packed size = ".sprintf('0x%x',$size)."\n"; |
212 | if ($debug) echo "Packed size = ".sprintf('0x%x',$size)."\n"; |
214 | 213 | ||
215 | // Read delta base type |
214 | // Read delta base type |
216 | if ($type == 6/*OBJ_OFS_DELTA*/) { |
215 | if ($type == 6/*OBJ_OFS_DELTA*/) { |
217 | // "a negative relative offset from the delta object's position in the pack |
216 | // "a negative relative offset from the delta object's position in the pack if this is an OBJ_OFS_DELTA object" |
218 | // if this is an OBJ_OFS_DELTA object" |
- | |
219 | $delta_info = unpack('C*', fread($fp,4))[1]; // TODO?! |
217 | $delta_info = unpack('C*', fread($fp,4))[1]; |
220 | if ($debug) echo "Delta negative offset: $delta_info\n"; |
218 | if ($debug) echo "Delta negative offset: $delta_info\n"; |
- | 219 | throw new Exception("OBJ_OFS_DELTA is currently not implemented"); // TODO! Implement OBJ_OFS_DELTA! |
|
221 | } |
220 | } |
222 | if ($type == 7/*OBJ_REF_DELTA*/) { |
221 | if ($type == 7/*OBJ_REF_DELTA*/) { |
223 | // "base object name if OBJ_REF_DELTA" |
222 | // "base object name if OBJ_REF_DELTA" |
224 | $delta_info = bin2hex(fread($fp,20))[1]; // TODO?! |
223 | $delta_info = bin2hex(fread($fp,20)); |
225 | if ($debug) echo "Delta base object name: $delta_info\n"; |
224 | if ($debug) echo "Delta base object name: $delta_info\n"; |
- | 225 | throw new Exception("OBJ_REF_DELTA is currently not implemented"); // TODO! Implement OBJ_REF_DELTA! |
|
226 | } |
226 | } |
227 | 227 | ||
228 | // Read compressed data |
228 | // Read compressed data |
229 | $compressed = fread($fp,$size); |
229 | $compressed = fread($fp,$size); |
230 | 230 |