1#!/bin/sh
2. git-sh-setup
4get_data_source () {
6 case "$1" in
7 */*)
8 # Not so fast. This could be the partial URL shorthand...
9 token=$(expr "$1" : '\([^/]*\)/')
10 remainder=$(expr "$1" : '[^/]*/\(.*\)')
11 if test -f "$GIT_DIR/branches/$token"
12 then
13 echo branches-partial
14 else
15 echo ''
16 fi
17 ;;
18 *)
19 if test -f "$GIT_DIR/remotes/$1"
20 then
21 echo remotes
22 elif test -f "$GIT_DIR/branches/$1"
23 then
24 echo branches
25 else
26 echo ''
27 fi ;;
28 esac
29}
30get_remote_url () {
32 data_source=$(get_data_source "$1")
33 case "$data_source" in
34 '')
35 echo "$1" ;;
36 remotes)
37 sed -ne '/^URL: */{
38 s///p
39 q
40 }' "$GIT_DIR/remotes/$1" ;;
41 branches)
42 sed -e 's/#.*//' "$GIT_DIR/branches/$1" ;;
43 branches-partial)
44 token=$(expr "$1" : '\([^/]*\)/')
45 remainder=$(expr "$1" : '[^/]*/\(.*\)')
46 url=$(sed -e 's/#.*//' "$GIT_DIR/branches/$token")
47 echo "$url/$remainder"
48 ;;
49 *)
50 die "internal error: get-remote-url $1" ;;
51 esac
52}
53get_remote_default_refs_for_push () {
55 data_source=$(get_data_source "$1")
56 case "$data_source" in
57 '' | branches | branches-partial)
58 ;; # no default push mapping, just send matching refs.
59 remotes)
60 sed -ne '/^Push: */{
61 s///p
62 }' "$GIT_DIR/remotes/$1" ;;
63 *)
64 die "internal error: get-remote-default-ref-for-push $1" ;;
65 esac
66}
67# Subroutine to canonicalize remote:local notation.
69canon_refs_list_for_fetch () {
70 # Leave only the first one alone; add prefix . to the rest
71 # to prevent the secondary branches to be merged by default.
72 dot_prefix=
73 for ref
74 do
75 force=
76 case "$ref" in
77 +*)
78 ref=$(expr "$ref" : '\+\(.*\)')
79 force=+
80 ;;
81 esac
82 expr "$ref" : '.*:' >/dev/null || ref="${ref}:"
83 remote=$(expr "$ref" : '\([^:]*\):')
84 local=$(expr "$ref" : '[^:]*:\(.*\)')
85 case "$remote" in
86 '') remote=HEAD ;;
87 refs/heads/* | refs/tags/*) ;;
88 heads/* | tags/* ) remote="refs/$remote" ;;
89 *) remote="refs/heads/$remote" ;;
90 esac
91 case "$local" in
92 '') local= ;;
93 refs/heads/* | refs/tags/*) ;;
94 heads/* | tags/* ) local="refs/$local" ;;
95 *) local="refs/heads/$local" ;;
96 esac
97 echo "${dot_prefix}${force}${remote}:${local}"
98 dot_prefix=.
99 done
100}
101# Returns list of src: (no store), or src:dst (store)
103get_remote_default_refs_for_fetch () {
104 data_source=$(get_data_source "$1")
105 case "$data_source" in
106 '' | branches-partial)
107 echo "HEAD:" ;;
108 branches)
109 remote_branch=$(sed -ne '/#/s/.*#//p' "$GIT_DIR/branches/$1")
110 case "$remote_branch" in '') remote_branch=master ;; esac
111 echo "refs/heads/${remote_branch}:refs/heads/$1"
112 ;;
113 remotes)
114 # This prefixes the second and later default refspecs
115 # with a '.', to signal git-fetch to mark them
116 # not-for-merge.
117 canon_refs_list_for_fetch $(sed -ne '/^Pull: */{
118 s///p
119 }' "$GIT_DIR/remotes/$1")
120 ;;
121 *)
122 die "internal error: get-remote-default-ref-for-push $1" ;;
123 esac
124}
125get_remote_refs_for_push () {
127 case "$#" in
128 0) die "internal error: get-remote-refs-for-push." ;;
129 1) get_remote_default_refs_for_push "$@" ;;
130 *) shift; echo "$@" ;;
131 esac
132}
133get_remote_refs_for_fetch () {
135 case "$#" in
136 0)
137 die "internal error: get-remote-refs-for-fetch." ;;
138 1)
139 get_remote_default_refs_for_fetch "$@" ;;
140 *)
141 shift
142 tag_just_seen=
143 for ref
144 do
145 if test "$tag_just_seen"
146 then
147 echo "refs/tags/${ref}:refs/tags/${ref}"
148 tag_just_seen=
149 continue
150 else
151 case "$ref" in
152 tag)
153 tag_just_seen=yes
154 continue
155 ;;
156 esac
157 fi
158 canon_refs_list_for_fetch "$ref"
159 done
160 ;;
161 esac
162}
163resolve_alternates () {
165 # original URL (xxx.git)
166 top_=`expr "$1" : '\([^:]*:/*[^/]*\)/'`
167 while read path
168 do
169 case "$path" in
170 \#* | '')
171 continue ;;
172 /*)
173 echo "$top_$path/" ;;
174 ../*)
175 # relative -- ugly but seems to work.
176 echo "$1/objects/$path/" ;;
177 *)
178 # exit code may not be caught by the reader.
179 echo "bad alternate: $path"
180 exit 1 ;;
181 esac
182 done
183}