e247d59274
contrib/ChangeLog: * gcc-git-customization.sh: Use git-backport.py to drop all changes for ChangeLog files. * git-backport.py: New file.
199 lines
8.0 KiB
Bash
Executable File
199 lines
8.0 KiB
Bash
Executable File
#!/bin/sh
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# Script to add some local git customizations suitable for working
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# with the GCC git repository
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ask () {
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question=$1
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default=$2
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var=$3
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echo -n $question "["$default"]? "
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read answer
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if [ "x$answer" = "x" ]
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then
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eval $var=\$default
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else
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eval $var=\$answer
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fi
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}
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# Add a git command to find the git commit equivalent to legacy SVN revision NNN
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git config alias.svn-rev '!f() { rev=$1; shift; git log --all --grep="^From-SVN: r\\?$rev\\b" "${@}"; } ; f'
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# Add git commands to convert git commit to monotonically increasing revision number
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# and vice versa
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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"
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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"
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git config alias.gcc-verify '!f() { "`git rev-parse --show-toplevel`/contrib/gcc-changelog/git_check_commit.py" $@; } ; f'
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git config alias.gcc-backport '!f() { "`git rev-parse --show-toplevel`/contrib/git-backport.py" $@; } ; f'
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git config alias.gcc-mklog '!f() { "`git rev-parse --show-toplevel`/contrib/mklog.py" $@; } ; f'
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git config alias.gcc-commit-mklog '!f() { GCC_FORCE_MKLOG=1 git commit "$@"; }; f'
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# Make diff on MD files use "(define" as a function marker.
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# Use this in conjunction with a .gitattributes file containing
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# *.md diff=md
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git config diff.md.xfuncname '^\(define.*$'
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set_user=$(git config --get "user.name")
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set_email=$(git config --get "user.email")
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if [ "x$set_user" = "x" ]
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then
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# Try to guess the user's name by looking it up in the password file
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new_user=$(getent passwd $(whoami) | awk -F: '{ print $5 }')
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if [ "x$new_user" = "x" ]
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then
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new_user="(no default)"
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fi
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else
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new_user=$set_user
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fi
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ask "Your name" "${new_user}" new_user
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if [ "x$new_user" = "x(no default)" ]
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then
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echo "Cannot continue, git needs to record your name against commits"
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exit 1
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fi
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if [ "x$set_email" = "x" ]
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then
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new_email="(no_default)"
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else
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new_email=$set_email
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fi
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ask "Your email address (for git commits)" "${new_email}" new_email
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if [ "x$new_email" = "x(no default)" ]
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then
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echo "Cannot continue, git needs to record your email address against commits"
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exit 1
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fi
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if [ "x$set_user" != "x$new_user" ]
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then
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git config "user.name" "$new_user"
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fi
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if [ "x$set_email" != "x$new_email" ]
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then
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git config "user.email" "$new_email"
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fi
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upstream=$(git config --get "gcc-config.upstream")
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if [ "x$upstream" = "x" ]
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then
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upstream="origin"
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fi
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ask "Local name for upstream repository" "origin" upstream
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v=$(git config --get-all "remote.${upstream}.fetch")
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if [ "x$v" = "x" ]
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then
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echo "Remote $upstream does not seem to exist as a remote"
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exit 1
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fi
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git config "gcc-config.upstream" "$upstream"
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remote_id=$(git config --get "gcc-config.user")
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if [ "x$remote_id" = "x" ]
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then
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# See if the url specifies the remote user name.
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url=$(git config --get "remote.$upstream.url")
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if [ "x$url" = "x" ]
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then
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# This is a pure guess, but for many people it might be OK.
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remote_id=$(whoami)
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else
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remote_id=$(echo $url | sed -r "s|^.*ssh://(.+)@gcc.gnu.org.*$|\1|")
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if [ x$remote_id = x$url ]
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then
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remote_id=$(whoami)
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fi
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fi
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fi
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ask "Account name on gcc.gnu.org (for your personal branches area)" $remote_id remote_id
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git config "gcc-config.user" "$remote_id"
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old_pfx=$(git config --get "gcc-config.userpfx")
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if [ "x$old_pfx" = "x" ]
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then
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old_pfx="me"
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fi
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echo
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echo "Local branch prefix for personal branches you want to share"
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echo "(local branches starting <prefix>/ can be pushed directly to your"
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ask "personal area on the gcc server)" $old_pfx new_pfx
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git config "gcc-config.userpfx" "$new_pfx"
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echo
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ask "Install prepare-commit-msg git hook for 'git commit-mklog' alias" yes dohook
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if [ "x$dohook" = xyes ]; then
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hookdir=`git rev-parse --git-path hooks`
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if [ -f "$hookdir/prepare-commit-msg" ]; then
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echo " Moving existing prepare-commit-msg hook to prepare-commit-msg.bak"
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mv "$hookdir/prepare-commit-msg" "$hookdir/prepare-commit-msg.bak"
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fi
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install -c "`git rev-parse --show-toplevel`/contrib/prepare-commit-msg" "$hookdir"
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fi
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# Scan the existing settings to see if there are any we need to rewrite.
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vendors=$(git config --get-all "remote.${upstream}.fetch" "refs/vendors/" | sed -r "s:.*refs/vendors/([^/]+)/.*:\1:" | sort | uniq)
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url=$(git config --get "remote.${upstream}.url")
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pushurl=$(git config --get "remote.${upstream}.pushurl")
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for v in $vendors
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do
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echo "Migrating vendor \"$v\" to new remote \"vendors/$v\""
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git config --unset-all "remote.${upstream}.fetch" "refs/vendors/$v/"
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git config --unset-all "remote.${upstream}.push" "refs/vendors/$v/"
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git config "remote.vendors/${v}.url" "${url}"
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if [ "x$pushurl" != "x" ]
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then
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git config "remote.vendors/${v}.pushurl" "${pushurl}"
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fi
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git config --add "remote.vendors/${v}.fetch" "+refs/vendors/$v/heads/*:refs/remotes/vendors/${v}/*"
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git config --add "remote.vendors/${v}.fetch" "+refs/vendors/$v/tags/*:refs/tags/vendors/${v}/*"
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done
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# Convert the remote 'pfx' to users/pfx to avoid problems with ambiguous refs
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# on user branches
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old_remote=$(git config --get "remote.${old_pfx}.url")
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if [ -n "${old_remote}" ]
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then
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echo "Migrating remote \"${old_pfx}\" to new remote \"users/${new_pfx}\""
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# Create a dummy fetch rule that will cause the subsequent prune to remove the old remote refs.
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git config --replace-all "remote.${old_pfx}.fetch" "+refs/empty/*:refs/remotes/${old_pfx}/*"
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# Remove any remotes
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git remote prune ${old_pfx}
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git config --remove-section "remote.${old_pfx}"
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for br in $(git branch --list "${old_pfx}/*")
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do
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old_remote=$(git config --get "branch.${br}.remote")
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if [ "${old_remote}" = "${old_pfx}" ]
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then
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git config "branch.${br}.remote" "users/${new_pfx}"
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fi
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done
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fi
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echo "Setting up tracking for personal namespace $remote_id in remotes/users/${new_pfx}"
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git config "remote.users/${new_pfx}.url" "${url}"
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if [ "x$pushurl" != "x" ]
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then
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git config "remote.users/${new_pfx}.pushurl" "${pushurl}"
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fi
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git config --replace-all "remote.users/${new_pfx}.fetch" "+refs/users/${remote_id}/heads/*:refs/remotes/users/${new_pfx}/*" "refs/users/${remote_id}/heads/"
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git config --replace-all "remote.users/${new_pfx}.fetch" "+refs/users/${remote_id}/tags/*:refs/tags/users/${new_pfx}/*" "refs/users/${remote_id}/tags/"
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git config --replace-all "remote.users/${new_pfx}.push" "refs/heads/${new_pfx}/*:refs/users/${remote_id}/heads/*" "refs/users/${remote_id}"
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if [ "$old_pfx" != "$new_pfx" -a "$old_pfx" != "${upstream}" ]
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then
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git config --remove-section "remote.${old_pfx}"
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fi
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git config --unset-all "remote.${upstream}.fetch" "refs/users/${remote_id}/"
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git config --unset-all "remote.${upstream}.push" "refs/users/${remote_id}/"
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git fetch "users/${new_pfx}"
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