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Commit | Line | Data |
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b2d46199 | 1 | #!/bin/sh |
ccf1ee32 JH |
2 | # |
3 | # Copyright (c) 2005 Linus Torvalds | |
4 | # | |
5 | ||
5715d0bb PH |
6 | OPTIONS_KEEPDASHDASH= |
7 | OPTIONS_SPEC="\ | |
1b1dd23f | 8 | git repack [options] |
5715d0bb PH |
9 | -- |
10 | a pack everything in a single pack | |
ca11b212 | 11 | A same as -a, and turn unreachable objects loose |
5715d0bb | 12 | d remove redundant packs, and run git-prune-packed |
5c47e1c7 JK |
13 | f pass --no-reuse-delta to git-pack-objects |
14 | F pass --no-reuse-object to git-pack-objects | |
2b36b146 | 15 | n do not run git-update-server-info |
5715d0bb PH |
16 | q,quiet be quiet |
17 | l pass --local to git-pack-objects | |
7e52f566 | 18 | unpack-unreachable= with -A, do not loosen objects older than this |
5715d0bb PH |
19 | Packing constraints |
20 | window= size of the window used for delta compression | |
21 | window-memory= same as the above, but limit memory size instead of entries count | |
22 | depth= limits the maximum delta depth | |
23 | max-pack-size= maximum size of each packfile | |
24 | " | |
d0b353b1 | 25 | SUBDIRECTORY_OK='Yes' |
ae2b0f15 | 26 | . git-sh-setup |
ccb36504 | 27 | |
ca11b212 | 28 | no_update_info= all_into_one= remove_redundant= unpack_unreachable= |
2e6a30ef | 29 | local= no_reuse= extra= |
822f7c73 | 30 | while test $# != 0 |
ccf1ee32 JH |
31 | do |
32 | case "$1" in | |
33 | -n) no_update_info=t ;; | |
d5acdcf1 | 34 | -a) all_into_one=t ;; |
65aa5302 | 35 | -A) all_into_one=t |
ca11b212 | 36 | unpack_unreachable=--unpack-unreachable ;; |
7e52f566 JK |
37 | --unpack-unreachable) |
38 | unpack_unreachable="--unpack-unreachable=$2"; shift ;; | |
0adb3358 | 39 | -d) remove_redundant=t ;; |
2e6a30ef | 40 | -q) GIT_QUIET=t ;; |
5c47e1c7 JK |
41 | -f) no_reuse=--no-reuse-delta ;; |
42 | -F) no_reuse=--no-reuse-object ;; | |
cec2be76 | 43 | -l) local=--local ;; |
5715d0bb PH |
44 | --max-pack-size|--window|--window-memory|--depth) |
45 | extra="$extra $1=$2"; shift ;; | |
46 | --) shift; break;; | |
9678faaa | 47 | *) usage ;; |
ccf1ee32 JH |
48 | esac |
49 | shift | |
50 | done | |
51 | ||
22c79eab | 52 | case "`git config --bool repack.usedeltabaseoffset || echo true`" in |
b6945f57 JH |
53 | true) |
54 | extra="$extra --delta-base-offset" ;; | |
55 | esac | |
56 | ||
d5acdcf1 | 57 | PACKDIR="$GIT_OBJECT_DIRECTORY/pack" |
e32dfec7 | 58 | PACKTMP="$PACKDIR/.tmp-$$-pack" |
0ea2582d ML |
59 | rm -f "$PACKTMP"-* |
60 | trap 'rm -f "$PACKTMP"-*' 0 1 2 3 15 | |
d5acdcf1 JH |
61 | |
62 | # There will be more repacking strategies to come... | |
63 | case ",$all_into_one," in | |
64 | ,,) | |
cd0d74d2 | 65 | args='--unpacked --incremental' |
d5acdcf1 JH |
66 | ;; |
67 | ,t,) | |
2478dc84 | 68 | args= existing= |
ce859074 SP |
69 | if [ -d "$PACKDIR" ]; then |
70 | for e in `cd "$PACKDIR" && find . -type f -name '*.pack' \ | |
71 | | sed -e 's/^\.\///' -e 's/\.pack$//'` | |
72 | do | |
73 | if [ -e "$PACKDIR/$e.keep" ]; then | |
74 | : keep | |
75 | else | |
ce859074 SP |
76 | existing="$existing $e" |
77 | fi | |
78 | done | |
171110a4 | 79 | if test -n "$existing" -a -n "$unpack_unreachable" -a \ |
83d0289d | 80 | -n "$remove_redundant" |
f7991d1e | 81 | then |
7e52f566 JK |
82 | # This may have arbitrary user arguments, so we |
83 | # have to protect it against whitespace splitting | |
84 | # when it gets run as "pack-objects $args" later. | |
85 | # Fortunately, we know it's an approxidate, so we | |
86 | # can just use dots instead. | |
87 | args="$args $(echo "$unpack_unreachable" | tr ' ' .)" | |
f7991d1e | 88 | fi |
65aa5302 | 89 | fi |
d5acdcf1 JH |
90 | ;; |
91 | esac | |
0ea2582d | 92 | |
e32dfec7 TR |
93 | mkdir -p "$PACKDIR" || exit |
94 | ||
2e6a30ef | 95 | args="$args $local ${GIT_QUIET:+-q} $no_reuse$extra" |
7f3140cd | 96 | names=$(git pack-objects --keep-true-parents --honor-pack-keep --non-empty --all --reflog $args </dev/null "$PACKTMP") || |
b2d46199 | 97 | exit 1 |
6b94b1a0 | 98 | if [ -z "$names" ]; then |
2e6a30ef | 99 | say Nothing new to pack. |
6b94b1a0 | 100 | fi |
d5acdcf1 | 101 | |
3e6b1d0a | 102 | # Ok we have prepared all new packfiles. |
3e6b1d0a JH |
103 | |
104 | # First see if there are packs of the same name and if so | |
105 | # if we can move them out of the way (this can happen if we | |
106 | # repacked immediately after packing fully. | |
107 | rollback= | |
108 | failed= | |
109 | for name in $names | |
110 | do | |
2ad47d61 JH |
111 | for sfx in pack idx |
112 | do | |
3e6b1d0a JH |
113 | file=pack-$name.$sfx |
114 | test -f "$PACKDIR/$file" || continue | |
115 | rm -f "$PACKDIR/old-$file" && | |
116 | mv "$PACKDIR/$file" "$PACKDIR/old-$file" || { | |
117 | failed=t | |
118 | break | |
119 | } | |
120 | rollback="$rollback $file" | |
121 | done | |
122 | test -z "$failed" || break | |
123 | done | |
124 | ||
125 | # If renaming failed for any of them, roll the ones we have | |
126 | # already renamed back to their original names. | |
127 | if test -n "$failed" | |
128 | then | |
129 | rollback_failure= | |
130 | for file in $rollback | |
131 | do | |
132 | mv "$PACKDIR/old-$file" "$PACKDIR/$file" || | |
133 | rollback_failure="$rollback_failure $file" | |
134 | done | |
135 | if test -n "$rollback_failure" | |
136 | then | |
137 | echo >&2 "WARNING: Some packs in use have been renamed by" | |
138 | echo >&2 "WARNING: prefixing old- to their name, in order to" | |
139 | echo >&2 "WARNING: replace them with the new version of the" | |
140 | echo >&2 "WARNING: file. But the operation failed, and" | |
141 | echo >&2 "WARNING: attempt to rename them back to their" | |
142 | echo >&2 "WARNING: original names also failed." | |
143 | echo >&2 "WARNING: Please rename them in $PACKDIR manually:" | |
144 | for file in $rollback_failure | |
145 | do | |
146 | echo >&2 "WARNING: old-$file -> $file" | |
147 | done | |
148 | fi | |
149 | exit 1 | |
150 | fi | |
151 | ||
152 | # Now the ones with the same name are out of the way... | |
153 | fullbases= | |
154 | for name in $names | |
155 | do | |
156 | fullbases="$fullbases pack-$name" | |
157 | chmod a-w "$PACKTMP-$name.pack" | |
158 | chmod a-w "$PACKTMP-$name.idx" | |
0ea2582d | 159 | mv -f "$PACKTMP-$name.pack" "$PACKDIR/pack-$name.pack" && |
3e6b1d0a JH |
160 | mv -f "$PACKTMP-$name.idx" "$PACKDIR/pack-$name.idx" || |
161 | exit | |
162 | done | |
163 | ||
164 | # Remove the "old-" files | |
165 | for name in $names | |
166 | do | |
167 | rm -f "$PACKDIR/old-pack-$name.idx" | |
168 | rm -f "$PACKDIR/old-pack-$name.pack" | |
6b94b1a0 | 169 | done |
d5acdcf1 | 170 | |
3e6b1d0a JH |
171 | # End of pack replacement. |
172 | ||
0adb3358 | 173 | if test "$remove_redundant" = t |
d5acdcf1 | 174 | then |
ce859074 SP |
175 | # We know $existing are all redundant. |
176 | if [ -n "$existing" ] | |
62af0b53 | 177 | then |
6ed64058 JH |
178 | ( cd "$PACKDIR" && |
179 | for e in $existing | |
180 | do | |
dca3957b DH |
181 | case " $fullbases " in |
182 | *" $e "*) ;; | |
ce859074 | 183 | *) rm -f "$e.pack" "$e.idx" "$e.keep" ;; |
62af0b53 | 184 | esac |
6ed64058 JH |
185 | done |
186 | ) | |
d5acdcf1 | 187 | fi |
2e6a30ef | 188 | git prune-packed ${GIT_QUIET:+-q} |
d5acdcf1 | 189 | fi |
ccf1ee32 | 190 | |
ccf1ee32 JH |
191 | case "$no_update_info" in |
192 | t) : ;; | |
e1dc49bc | 193 | *) git update-server-info ;; |
ccf1ee32 | 194 | esac |