comparison contrib/gcc-git-customization.sh @ 145:1830386684a0

gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
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131:84e7813d76e9 145:1830386684a0
1 #!/bin/sh
2
3 # Script to add some local git customizations suitable for working
4 # with the GCC git repository
5
6 ask () {
7 question=$1
8 default=$2
9 var=$3
10 echo -n $question "["$default"]? "
11 read answer
12 if [ "x$answer" = "x" ]
13 then
14 eval $var=\$default
15 else
16 eval $var=\$answer
17 fi
18 }
19
20 # Add a git command to find the git commit equivalent to legacy SVN revision NNN
21 git config alias.svn-rev '!f() { rev=$1; shift; git log --all --grep="From-SVN: r\\?$rev\\b" "${@}"; } ; f'
22
23 # Add git commands to convert git commit to monotonically increasing revision number
24 # and vice versa
25 git config alias.gcc-descr \!"f() { if test \${1:-no} = --full; then c=\${2:-master}; r=\$(git describe --all --abbrev=40 --match 'basepoints/gcc-[0-9]*' \$c | sed -n 's,^\\(tags/\\)\\?basepoints/gcc-,r,p'); expr match \${r:-no} '^r[0-9]\\+\$' >/dev/null && r=\${r}-0-g\$(git rev-parse \${2:-master}); else c=\${1:-master}; r=\$(git describe --all --match 'basepoints/gcc-[0-9]*' \$c | sed -n 's,^\\(tags/\\)\\?basepoints/gcc-\\([0-9]\\+\\)-\\([0-9]\\+\\)-g[0-9a-f]*\$,r\\2-\\3,p;s,^\\(tags/\\)\\?basepoints/gcc-\\([0-9]\\+\\)\$,r\\2-0,p'); fi; if test -n \$r; then o=\$(git config --get gcc-config.upstream); rr=\$(echo \$r | sed -n 's,^r\\([0-9]\\+\\)-[0-9]\\+\\(-g[0-9a-f]\\+\\)\\?\$,\\1,p'); if git rev-parse --verify --quiet \${o:-origin}/releases/gcc-\$rr >/dev/null; then m=releases/gcc-\$rr; else m=master; fi; git merge-base --is-ancestor \$c \${o:-origin}/\$m && \echo \${r}; fi; }; f"
26 git config alias.gcc-undescr \!"f() { o=\$(git config --get gcc-config.upstream); r=\$(echo \$1 | sed -n 's,^r\\([0-9]\\+\\)-[0-9]\\+\$,\\1,p'); n=\$(echo \$1 | sed -n 's,^r[0-9]\\+-\\([0-9]\\+\\)\$,\\1,p'); test -z \$r && echo Invalid id \$1 && exit 1; h=\$(git rev-parse --verify --quiet \${o:-origin}/releases/gcc-\$r); test -z \$h && h=\$(git rev-parse --verify --quiet \${o:-origin}/master); p=\$(git describe --all --match 'basepoints/gcc-'\$r \$h | sed -n 's,^\\(tags/\\)\\?basepoints/gcc-[0-9]\\+-\\([0-9]\\+\\)-g[0-9a-f]*\$,\\2,p;s,^\\(tags/\\)\\?basepoints/gcc-[0-9]\\+\$,0,p'); git rev-parse --verify \$h~\$(expr \$p - \$n); }; f"
27
28 # Make diff on MD files use "(define" as a function marker.
29 # Use this in conjunction with a .gitattributes file containing
30 # *.md diff=md
31 git config diff.md.xfuncname '^\(define.*$'
32
33 set_user=$(git config --get "user.name")
34 set_email=$(git config --get "user.email")
35
36 if [ "x$set_user" = "x" ]
37 then
38 # Try to guess the user's name by looking it up in the password file
39 new_user=$(getent passwd $(whoami) | awk -F: '{ print $5 }')
40 if [ "x$new_user" = "x" ]
41 then
42 new_user="(no default)"
43 fi
44 else
45 new_user=$set_user
46 fi
47 ask "Your name" "${new_user}" new_user
48 if [ "x$new_user" = "x(no default)" ]
49 then
50 echo "Cannot continue, git needs to record your name against commits"
51 exit 1
52 fi
53
54 if [ "x$set_email" = "x" ]
55 then
56 new_email="(no_default)"
57 else
58 new_email=$set_email
59 fi
60
61 ask "Your email address (for git commits)" "${new_email}" new_email
62 if [ "x$new_email" = "x(no default)" ]
63 then
64 echo "Cannot continue, git needs to record your email address against commits"
65 exit 1
66 fi
67
68 if [ "x$set_user" != "x$new_user" ]
69 then
70 git config "user.name" "$new_user"
71 fi
72
73 if [ "x$set_email" != "x$new_email" ]
74 then
75 git config "user.email" "$new_email"
76 fi
77
78 upstream=$(git config --get "gcc-config.upstream")
79 if [ "x$upstream" = "x" ]
80 then
81 upstream="origin"
82 fi
83 ask "Local name for upstream repository" "origin" upstream
84
85 v=$(git config --get-all "remote.${upstream}.fetch")
86 if [ "x$v" = "x" ]
87 then
88 echo "Remote $upstream does not seem to exist as a remote"
89 exit 1
90 fi
91 git config "gcc-config.upstream" "$upstream"
92
93 remote_id=$(git config --get "gcc-config.user")
94 if [ "x$remote_id" = "x" ]
95 then
96 # See if the url specifies the remote user name.
97 url=$(git config --get "remote.$upstream.url")
98 if [ "x$url" = "x" ]
99 then
100 # This is a pure guess, but for many people it might be OK.
101 remote_id=$(whoami)
102 else
103 remote_id=$(echo $url | sed -r "s|^.*ssh://(.+)@gcc.gnu.org.*$|\1|")
104 if [ x$remote_id = x$url ]
105 then
106 remote_id=$(whoami)
107 fi
108 fi
109 fi
110
111 ask "Account name on gcc.gnu.org (for your personal branches area)" $remote_id remote_id
112 git config "gcc-config.user" "$remote_id"
113
114 old_pfx=$(git config --get "gcc-config.userpfx")
115 if [ "x$old_pfx" = "x" ]
116 then
117 old_pfx="me"
118 fi
119 echo
120 echo "Local branch prefix for personal branches you want to share"
121 echo "(local branches starting <prefix>/ can be pushed directly to your"
122 ask "personal area on the gcc server)" $old_pfx new_pfx
123 git config "gcc-config.userpfx" "$new_pfx"
124
125 # Scan the existing settings to see if there are any we need to rewrite.
126 vendors=$(git config --get-all "remote.${upstream}.fetch" "refs/vendors/" | sed -r "s:.*refs/vendors/([^/]+)/.*:\1:" | sort | uniq)
127 url=$(git config --get "remote.${upstream}.url")
128 pushurl=$(git config --get "remote.${upstream}.pushurl")
129 for v in $vendors
130 do
131 echo "Migrating vendor \"$v\" to new remote \"vendors/$v\""
132 git config --unset-all "remote.${upstream}.fetch" "refs/vendors/$v/"
133 git config --unset-all "remote.${upstream}.push" "refs/vendors/$v/"
134 git config "remote.vendors/${v}.url" "${url}"
135 if [ "x$pushurl" != "x" ]
136 then
137 git config "remote.vendors/${v}.pushurl" "${pushurl}"
138 fi
139 git config --add "remote.vendors/${v}.fetch" "+refs/vendors/$v/heads/*:refs/remotes/vendors/${v}/*"
140 git config --add "remote.vendors/${v}.fetch" "+refs/vendors/$v/tags/*:refs/tags/vendors/${v}/*"
141 done
142
143 # Convert the remote 'pfx' to users/pfx to avoid problems with ambiguous refs
144 # on user branches
145 old_remote=$(git config --get "remote.${old_pfx}.url")
146 if [ -n "${old_remote}" ]
147 then
148 echo "Migrating remote \"${old_pfx}\" to new remote \"users/${new_pfx}\""
149 # Create a dummy fetch rule that will cause the subsequent prune to remove the old remote refs.
150 git config --replace-all "remote.${old_pfx}.fetch" "+refs/empty/*:refs/remotes/${old_pfx}/*"
151 # Remove any remotes
152 git remote prune ${old_pfx}
153 git config --remove-section "remote.${old_pfx}"
154 for br in $(git branch --list "${old_pfx}/*")
155 do
156 old_remote=$(git config --get "branch.${br}.remote")
157 if [ "${old_remote}" = "${old_pfx}" ]
158 then
159 git config "branch.${br}.remote" "users/${new_pfx}"
160 fi
161 done
162 fi
163
164 echo "Setting up tracking for personal namespace $remote_id in remotes/users/${new_pfx}"
165 git config "remote.users/${new_pfx}.url" "${url}"
166 if [ "x$pushurl" != "x" ]
167 then
168 git config "remote.users/${new_pfx}.pushurl" "${pushurl}"
169 fi
170 git config --replace-all "remote.users/${new_pfx}.fetch" "+refs/users/${remote_id}/heads/*:refs/remotes/users/${new_pfx}/*" "refs/users/${remote_id}/heads/"
171 git config --replace-all "remote.users/${new_pfx}.fetch" "+refs/users/${remote_id}/tags/*:refs/tags/users/${new_pfx}/*" "refs/users/${remote_id}/tags/"
172 git config --replace-all "remote.users/${new_pfx}.push" "refs/heads/${new_pfx}/*:refs/users/${remote_id}/heads/*" "refs/users/${remote_id}"
173
174 if [ "$old_pfx" != "$new_pfx" -a "$old_pfx" != "${upstream}" ]
175 then
176 git config --remove-section "remote.${old_pfx}"
177 fi
178
179 git config --unset-all "remote.${upstream}.fetch" "refs/users/${remote_id}/"
180 git config --unset-all "remote.${upstream}.push" "refs/users/${remote_id}/"
181
182 git fetch "users/${new_pfx}"