2921795668
We want to always avoid merge commits being committed to Homebrew so this feels like a better fit.
359 lines
10 KiB
Bash
359 lines
10 KiB
Bash
#: * `update` [`--merge`]:
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#: Fetch the newest version of Homebrew and all formulae from GitHub using
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#: `git`(1).
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#:
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#: If `--merge` is specified then `git merge` is used to include updates
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#: (rather than `git rebase`).
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brew() {
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"$HOMEBREW_BREW_FILE" "$@"
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}
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git() {
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"$HOMEBREW_LIBRARY/ENV/scm/git" "$@"
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}
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git_init_if_necessary() {
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if [[ -n "$HOMEBREW_OSX" ]]
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then
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OFFICIAL_REMOTE="https://github.com/Homebrew/brew.git"
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else
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OFFICIAL_REMOTE="https://github.com/Linuxbrew/brew.git"
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fi
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if [[ ! -d ".git" ]]
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then
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set -e
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trap '{ rm -rf .git; exit 1; }' EXIT
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git init
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git config --bool core.autocrlf false
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git config remote.origin.url "$OFFICIAL_REMOTE"
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git config remote.origin.fetch "+refs/heads/*:refs/remotes/origin/*"
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git fetch --force --depth=1 origin refs/heads/master:refs/remotes/origin/master
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git reset --hard origin/master
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SKIP_FETCH_HOMEBREW_REPOSITORY=1
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set +e
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trap - EXIT
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fi
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}
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rename_taps_dir_if_necessary() {
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local tap_dir
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local tap_dir_basename
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local user
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local repo
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for tap_dir in "$HOMEBREW_LIBRARY"/Taps/*
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do
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[[ -d "$tap_dir/.git" ]] || continue
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tap_dir_basename="${tap_dir##*/}"
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if [[ "$tap_dir_basename" = *"-"* ]]
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then
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# only replace the *last* dash: yes, tap filenames suck
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user="$(echo "${tap_dir_basename%-*}" | tr "[:upper:]" "[:lower:]")"
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repo="$(echo "${tap_dir_basename:${#user}+1}" | tr "[:upper:]" "[:lower:]")"
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mkdir -p "$HOMEBREW_LIBRARY/Taps/$user"
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mv "$tap_dir", "$HOMEBREW_LIBRARY/Taps/$user/homebrew-$repo"
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if [[ ${#${tap_dir_basename//[^\-]}} -gt 1 ]]
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then
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echo "Homebrew changed the structure of Taps like <someuser>/<sometap>." >&2
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echo "So you may need to rename $HOMEBREW_LIBRARY/Taps/$user/homebrew-$repo manually." >&2
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fi
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else
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echo "Homebrew changed the structure of Taps like <someuser>/<sometap>. " >&2
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echo "$tap_dir is an incorrect Tap path." >&2
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echo "So you may need to rename it to $HOMEBREW_LIBRARY/Taps/<someuser>/homebrew-<sometap> manually." >&2
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fi
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done
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}
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repo_var() {
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local repo_var
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repo_var="$1"
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if [[ "$repo_var" = "$HOMEBREW_REPOSITORY" ]]
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then
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repo_var=""
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else
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repo_var="${repo_var#"$HOMEBREW_LIBRARY/Taps"}"
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repo_var="$(echo -n "$repo_var" | tr -C "A-Za-z0-9" "_" | tr "[:lower:]" "[:upper:]")"
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fi
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echo "$repo_var"
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}
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upstream_branch() {
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local upstream_branch
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upstream_branch="$(git symbolic-ref refs/remotes/origin/HEAD 2>/dev/null)"
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upstream_branch="${upstream_branch#refs/remotes/origin/}"
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[[ -z "$upstream_branch" ]] && upstream_branch="master"
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echo "$upstream_branch"
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}
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read_current_revision() {
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git rev-parse -q --verify HEAD
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}
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pop_stash() {
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[[ -z "$STASHED" ]] && return
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git stash pop "${QUIET_ARGS[@]}"
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if [[ -n "$HOMEBREW_VERBOSE" ]]
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then
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echo "Restoring your stashed changes to $DIR:"
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git status --short --untracked-files
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fi
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unset STASHED
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}
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pop_stash_message() {
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[[ -z "$STASHED" ]] && return
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echo "To restore the stashed changes to $DIR run:"
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echo " 'cd $DIR && git stash pop'"
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unset STASHED
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}
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reset_on_interrupt() {
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if [[ "$INITIAL_BRANCH" != "$UPSTREAM_BRANCH" && -n "$INITIAL_BRANCH" ]]
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then
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git checkout "$INITIAL_BRANCH"
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fi
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if [[ -n "$INITIAL_REVISION" ]]
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then
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git reset --hard "$INITIAL_REVISION" "${QUIET_ARGS[@]}"
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fi
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if [[ "$INITIAL_BRANCH" != "$UPSTREAM_BRANCH" && -n "$INITIAL_BRANCH" ]]
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then
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pop_stash
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else
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pop_stash_message
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fi
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exit 130
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}
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pull() {
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local DIR
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local TAP_VAR
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DIR="$1"
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cd "$DIR" || return
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TAP_VAR=$(repo_var "$DIR")
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unset STASHED
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# The upstream repository's default branch may not be master;
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# check refs/remotes/origin/HEAD to see what the default
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# origin branch name is, and use that. If not set, fall back to "master".
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INITIAL_BRANCH="$(git symbolic-ref --short HEAD 2>/dev/null)"
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UPSTREAM_BRANCH="$(upstream_branch)"
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# Used for testing purposes, e.g., for testing formula migration after
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# renaming it in the currently checked-out branch. To test run
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# "brew update --simulate-from-current-branch"
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if [[ -n "$HOMEBREW_SIMULATE_FROM_CURRENT_BRANCH" ]]
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then
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INITIAL_REVISION="$(git rev-parse -q --verify "$UPSTREAM_BRANCH")"
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CURRENT_REVISION="$(read_current_revision)"
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export HOMEBREW_UPDATE_BEFORE"$TAP_VAR"="$INITIAL_REVISION"
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export HOMEBREW_UPDATE_AFTER"$TAP_VAR"="$CURRENT_REVISION"
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if ! git merge-base --is-ancestor "$INITIAL_REVISION" "$CURRENT_REVISION"
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then
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odie "Your $DIR HEAD is not a descendant of $UPSTREAM_BRANCH!"
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fi
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return
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fi
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trap reset_on_interrupt SIGINT
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if [[ -n "$(git status --untracked-files=all --porcelain 2>/dev/null)" ]]
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then
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if [[ -n "$HOMEBREW_VERBOSE" ]]
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then
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echo "Stashing uncommitted changes to $DIR."
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git status --short --untracked-files=all
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fi
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git merge --abort &>/dev/null
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git -c "user.email=brew-update@localhost" \
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-c "user.name=brew update" \
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stash save --include-untracked "${QUIET_ARGS[@]}"
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git reset --hard "${QUIET_ARGS[@]}"
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STASHED="1"
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fi
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if [[ "$INITIAL_BRANCH" != "$UPSTREAM_BRANCH" && -n "$INITIAL_BRANCH" ]]
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then
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# Recreate and check out `#{upstream_branch}` if unable to fast-forward
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# it to `origin/#{@upstream_branch}`. Otherwise, just check it out.
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if git merge-base --is-ancestor "$UPSTREAM_BRANCH" "origin/$UPSTREAM_BRANCH" &>/dev/null
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then
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git checkout --force "$UPSTREAM_BRANCH" "${QUIET_ARGS[@]}"
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else
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git checkout --force -B "$UPSTREAM_BRANCH" "origin/$UPSTREAM_BRANCH" "${QUIET_ARGS[@]}"
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fi
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fi
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INITIAL_REVISION="$(read_current_revision)"
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export HOMEBREW_UPDATE_BEFORE"$TAP_VAR"="$INITIAL_REVISION"
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# ensure we don't munge line endings on checkout
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git config core.autocrlf false
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if [[ -z "$HOMEBREW_MERGE" ]]
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then
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git rebase "${QUIET_ARGS[@]}" "origin/$UPSTREAM_BRANCH"
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else
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git merge --no-edit --ff "${QUIET_ARGS[@]}" "origin/$UPSTREAM_BRANCH" \
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--strategy=recursive \
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--strategy-option=ours \
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--strategy-option=ignore-all-space
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fi
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export HOMEBREW_UPDATE_AFTER"$TAP_VAR"="$(read_current_revision)"
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trap '' SIGINT
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if [[ -n "$HOMEBREW_DEVELOPER" ]] &&
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[[ "$INITIAL_BRANCH" != "$UPSTREAM_BRANCH" && -n "$INITIAL_BRANCH" ]]
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then
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git checkout "${QUIET_ARGS[@]}" "$INITIAL_BRANCH"
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pop_stash
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else
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pop_stash_message
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fi
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trap - SIGINT
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}
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homebrew-update() {
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local option
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local DIR
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local UPSTREAM_BRANCH
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for option in "$@"
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do
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case "$option" in
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--help) brew help update; exit $? ;;
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--verbose) HOMEBREW_VERBOSE=1 ;;
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--debug) HOMEBREW_DEBUG=1;;
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--merge) HOMEBREW_MERGE=1 ;;
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--simulate-from-current-branch) HOMEBREW_SIMULATE_FROM_CURRENT_BRANCH=1 ;;
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--preinstall) HOMEBREW_UPDATE_PREINSTALL=1 ;;
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--*) ;;
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-*)
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[[ "$option" = *v* ]] && HOMEBREW_VERBOSE=1;
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[[ "$option" = *d* ]] && HOMEBREW_DEBUG=1;
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;;
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*)
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odie <<-EOS
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This command updates brew itself, and does not take formula names.
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Use 'brew upgrade <formula>'.
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EOS
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;;
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esac
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done
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if [[ -n "$HOMEBREW_DEBUG" ]]
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then
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set -x
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fi
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# check permissions
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if [[ "$HOMEBREW_PREFIX" = "/usr/local" && ! -w /usr/local ]]
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then
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odie "/usr/local must be writable!"
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fi
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if [[ ! -w "$HOMEBREW_REPOSITORY" ]]
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then
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odie "$HOMEBREW_REPOSITORY must be writable!"
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fi
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if ! git --version >/dev/null 2>&1
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then
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# we cannot install brewed git if homebrew/core is unavailable.
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[[ -d "$HOMEBREW_LIBRARY/Taps/homebrew/homebrew-core" ]] && brew install git
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if ! git --version >/dev/null 2>&1
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then
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odie "Git must be installed and in your PATH!"
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fi
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fi
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export GIT_TERMINAL_PROMPT="0"
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export GIT_ASKPASS="false"
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export GIT_SSH_COMMAND="ssh -oBatchMode=yes"
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if [[ -z "$HOMEBREW_VERBOSE" ]]
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then
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QUIET_ARGS=(-q)
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else
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QUIET_ARGS=()
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fi
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# ensure GIT_CONFIG is unset as we need to operate on .git/config
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unset GIT_CONFIG
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chdir "$HOMEBREW_REPOSITORY"
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git_init_if_necessary
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# rename Taps directories
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# this procedure will be removed in the future if it seems unnecessary
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rename_taps_dir_if_necessary
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# kill all of subprocess on interrupt
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trap '{ pkill -P $$; wait; exit 130; }' SIGINT
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for DIR in "$HOMEBREW_REPOSITORY" "$HOMEBREW_LIBRARY"/Taps/*/*
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do
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[[ -d "$DIR/.git" ]] || continue
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[[ -n "$SKIP_FETCH_HOMEBREW_REPOSITORY" && "$DIR" = "$HOMEBREW_REPOSITORY" ]] && continue
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cd "$DIR" || continue
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UPSTREAM_BRANCH="$(upstream_branch)"
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# the refspec ensures that the default upstream branch gets updated
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(
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UPSTREAM_REPOSITORY_URL="$(git config remote.origin.url)"
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if [[ "$UPSTREAM_REPOSITORY_URL" = "https://github.com/"* ]]
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then
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UPSTREAM_REPOSITORY="${UPSTREAM_REPOSITORY_URL#https://github.com/}"
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UPSTREAM_REPOSITORY="${UPSTREAM_REPOSITORY%.git}"
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UPSTREAM_BRANCH_LOCAL_SHA="$(git rev-parse "refs/remotes/origin/$UPSTREAM_BRANCH")"
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# Only try to `git fetch` when the upstream branch is at a different SHA
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# (so the API does not return 304: unmodified).
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UPSTREAM_SHA_HTTP_CODE="$("$HOMEBREW_CURL" --silent '--max-time' 3 \
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--output /dev/null --write-out "%{http_code}" \
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--user-agent "$HOMEBREW_USER_AGENT_CURL" \
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--header "Accept: application/vnd.github.v3.sha" \
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--header "If-None-Match: \"$UPSTREAM_BRANCH_LOCAL_SHA\"" \
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"https://api.github.com/repos/$UPSTREAM_REPOSITORY/commits/$UPSTREAM_BRANCH")"
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[[ "$UPSTREAM_SHA_HTTP_CODE" = "304" ]] && exit
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elif [[ -n "$HOMEBREW_UPDATE_PREINSTALL" ]]
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then
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# Don't try to do a `git fetch` that may take longer than expected.
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exit
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fi
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if [[ -n "$HOMEBREW_UPDATE_PREINSTALL" ]]
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then
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git fetch --force "${QUIET_ARGS[@]}" origin \
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"refs/heads/$UPSTREAM_BRANCH:refs/remotes/origin/$UPSTREAM_BRANCH" 2>/dev/null
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else
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git fetch --force "${QUIET_ARGS[@]}" origin \
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"refs/heads/$UPSTREAM_BRANCH:refs/remotes/origin/$UPSTREAM_BRANCH" || \
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odie "Fetching $DIR failed!"
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fi
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) &
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done
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wait
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trap - SIGINT
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for DIR in "$HOMEBREW_REPOSITORY" "$HOMEBREW_LIBRARY"/Taps/*/*
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do
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[[ -d "$DIR/.git" ]] || continue
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pull "$DIR"
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done
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chdir "$HOMEBREW_REPOSITORY"
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brew update-report "$@"
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return $?
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}
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