1#!/bin/sh 2 3# Script to add some local git customizations suitable for working 4# with the GCC git repository 5 6ask () { 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 21git 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 25git 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" 26git 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 31git config diff.md.xfuncname '^\(define.*$' 32 33set_user=$(git config --get "user.name") 34set_email=$(git config --get "user.email") 35 36if [ "x$set_user" = "x" ] 37then 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 44else 45 new_user=$set_user 46fi 47ask "Your name" "${new_user}" new_user 48if [ "x$new_user" = "x(no default)" ] 49then 50 echo "Cannot continue, git needs to record your name against commits" 51 exit 1 52fi 53 54if [ "x$set_email" = "x" ] 55then 56 new_email="(no_default)" 57else 58 new_email=$set_email 59fi 60 61ask "Your email address (for git commits)" "${new_email}" new_email 62if [ "x$new_email" = "x(no default)" ] 63then 64 echo "Cannot continue, git needs to record your email address against commits" 65 exit 1 66fi 67 68if [ "x$set_user" != "x$new_user" ] 69then 70 git config "user.name" "$new_user" 71fi 72 73if [ "x$set_email" != "x$new_email" ] 74then 75 git config "user.email" "$new_email" 76fi 77 78upstream=$(git config --get "gcc-config.upstream") 79if [ "x$upstream" = "x" ] 80then 81 upstream="origin" 82fi 83ask "Local name for upstream repository" "origin" upstream 84 85v=$(git config --get-all "remote.${upstream}.fetch") 86if [ "x$v" = "x" ] 87then 88 echo "Remote $upstream does not seem to exist as a remote" 89 exit 1 90fi 91git config "gcc-config.upstream" "$upstream" 92 93remote_id=$(git config --get "gcc-config.user") 94if [ "x$remote_id" = "x" ] 95then 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 109fi 110 111ask "Account name on gcc.gnu.org (for your personal branches area)" $remote_id remote_id 112git config "gcc-config.user" "$remote_id" 113 114old_pfx=$(git config --get "gcc-config.userpfx") 115if [ "x$old_pfx" = "x" ] 116then 117 old_pfx="me" 118fi 119echo 120echo "Local branch prefix for personal branches you want to share" 121echo "(local branches starting <prefix>/ can be pushed directly to your" 122ask "personal area on the gcc server)" $old_pfx new_pfx 123git config "gcc-config.userpfx" "$new_pfx" 124 125# Scan the existing settings to see if there are any we need to rewrite. 126vendors=$(git config --get-all "remote.${upstream}.fetch" "refs/vendors/" | sed -r "s:.*refs/vendors/([^/]+)/.*:\1:" | sort | uniq) 127url=$(git config --get "remote.${upstream}.url") 128pushurl=$(git config --get "remote.${upstream}.pushurl") 129for v in $vendors 130do 131 echo "Migrating vendor \"$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}/*" 141done 142 143# Convert the remote 'pfx' to users/pfx to avoid problems with ambiguous refs 144# on user branches 145old_remote=$(git config --get "remote.${old_pfx}.url") 146if [ -n "${old_remote}" ] 147then 148 echo "Migrating remote \"${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 162fi 163 164echo "Setting up tracking for personal namespace $remote_id in remotes/users/${new_pfx}" 165git config "remote.users/${new_pfx}.url" "${url}" 166if [ "x$pushurl" != "x" ] 167then 168 git config "remote.users/${new_pfx}.pushurl" "${pushurl}" 169fi 170git config --replace-all "remote.users/${new_pfx}.fetch" "+refs/users/${remote_id}/heads/*:refs/remotes/users/${new_pfx}/*" "refs/users/${remote_id}/heads/" 171git config --replace-all "remote.users/${new_pfx}.fetch" "+refs/users/${remote_id}/tags/*:refs/tags/users/${new_pfx}/*" "refs/users/${remote_id}/tags/" 172git config --replace-all "remote.users/${new_pfx}.push" "refs/heads/${new_pfx}/*:refs/users/${remote_id}/heads/*" "refs/users/${remote_id}" 173 174if [ "$old_pfx" != "$new_pfx" -a "$old_pfx" != "${upstream}" ] 175then 176 git config --remove-section "remote.${old_pfx}" 177fi 178 179git config --unset-all "remote.${upstream}.fetch" "refs/users/${remote_id}/" 180git config --unset-all "remote.${upstream}.push" "refs/users/${remote_id}/" 181 182git fetch "users/${new_pfx}" 183