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Unnamed repository; edit this file 'description' to name the repository. git clone https://hacktivis.me/git/mirror/shit.git

update-index (2345B)

    

  1. #!/bin/sh -eu
  2. SHIT_PATH=$(dirname "$0")
  3. . $SHIT_PATH/common.sh
  5. write_index_header() (
  6. 	nentries="$1"
  7. 	printf 'DIRC'
  8. 	write_int32 $INDEX_VERSION
  9. 	write_int32 $nentries
  10. 	# TODO: Extensions would go here if we cared
  11. )
  13. write_index_file() (
  14. 	path="$(normalize_path "$1")"
  15. 	stat=$(stat -c "%W %Y %d %i %u %g %s" "$path") # XXX: GNUism
  16. 	ctime=$(printf "%s" "$stat" | cut -d' ' -f1)
  17. 	mtime=$(printf "%s" "$stat" | cut -d' ' -f2)
  18. 	dev=$(printf "%s" "$stat" | cut -d' ' -f3)
  19. 	inode=$(printf "%s" "$stat" | cut -d' ' -f4)
  20. 	uid=$(printf "%s" "$stat" | cut -d' ' -f5)
  21. 	gid=$(printf "%s" "$stat" | cut -d' ' -f6)
  22. 	size=$(printf "%s" "$stat" | cut -d' ' -f7)
  24. 	write_int32 "$ctime"
  25. 	write_int32 0 # nanoseconds
  26. 	write_int32 "$mtime"
  27. 	write_int32 0 # nanoseconds
  28. 	write_int32 "$dev"
  29. 	write_int32 "$inode"
  30. 	# object type & mode
  31. 	if [ -x "$path" ]
  32. 	then
  33. 		write_int32 $((0x8000 | 0755))
  34. 	else
  35. 		write_int32 $((0x8000 | 0644))
  36. 	fi
  37. 	write_int32 "$uid"
  38. 	write_int32 "$gid"
  39. 	write_int32 "$size"
  40. 	sha=$("$SHIT_PATH"/hash-object -w "$path")
  41. 	write_hex "$sha"
  42. 	# XXX: If file name length is >0xFFF this is wrong
  43. 	write_int16 "${#path}"
  44. 	printf '%s\0' "$path"
  45. 	padding=$((${#path} + 1 + 62))
  46. 	padding=$((padding % 8))
  47. 	padding=$(((8 - padding) % 8))
  48. 	while [ $padding -gt 0 ]
  49. 	do
  50. 		printf '\0'
  51. 		padding=$((padding-1))
  52. 	done
  53. )
  55. write_index_link() (
  56. 	printf '%s' "Symlinks are not implemented\n" >&2
  57. 	exit 1
  58. )
  60. do_add=0
  61. do_remove=0
  62. force_remove=0
  64. while [ $# -ne 0 ]
  65. do
  66. 	case "$1" in
  67. 		--add)
  68. 			do_add=1
  69. 			;;
  70. 		--remove)
  71. 			do_remove=1
  72. 			;;
  73. 		--force-remove)
  74. 			do_remove=1
  75. 			force_remove=1
  76. 			;;
  77. 		*)
  78. 			break
  79. 			;;
  80. 	esac
  81. 	shift
  82. done
  84. # TODO: Update existing index
  86. cleanup_old_index() {
  87. 	if [ $? -eq 0 ]
  88. 	then
  89. 		rm "$GIT_DIR"/index.old
  90. 	else
  91. 		# Restore old index on error
  92. 		mv "$GIT_DIR"/index.old "$GIT_DIR"/index
  93. 	fi
  94. }
  96. if [ -f "$GIT_DIR"/index ]
  97. then
  98. 	mv "$GIT_DIR"/index "$GIT_DIR"/index.old
  99. 	trap cleanup_old_index EXIT
  100. fi
  102. write_index_header "$#" >>"$GIT_DIR"/index
  104. for path in "$@"
  105. do
  106. 	printf "%s\n" "$path"
  107. done | gitsort | while read -r path
  108. do
  109. 	if [ -f "$path" ]
  110. 	then
  111. 		write_index_file "$path" >>"$GIT_DIR"/index
  112. 	elif [ -L "$path" ]
  113. 	then
  114. 		write_index_link "$path" >>"$GIT_DIR"/index
  115. 	else
  116. 		printf "Invalid path for indexing: %s\n" "$path" >&2
  117. 		exit 1
  118. 	fi
  119. done
  121. sha=$(sha1sum "$GIT_DIR"/index | cut -d' ' -f1)
  122. write_hex "$sha" >>"$GIT_DIR"/index