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Diffstat (limited to 'utils/inst')
-rw-r--r-- | utils/inst | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/utils/inst b/utils/inst new file mode 100644 index 0000000..46cae0c --- /dev/null +++ b/utils/inst @@ -0,0 +1,89 @@ +# Functions used for interactive installation of new changes to running system +# vim: ft=sh + +dodiff() { + if [ -d "$2" ]; then + # If we just copying some file to directory + OUT=$2/$(basename "$1") + else + OUT=$2 + fi + if ! [ -f "$OUT" ]; then + echo "Not installed: $1 => $OUT" + read -p "Install? (Y/n) " + if [[ $REPLY =~ ^[Yy]?$ ]]; then + doinst "$1" "$OUT" + fi + return + fi + if cmp "$1" "$OUT" >/dev/null; then + echo "No difference detected: $OUT" + return + fi + vimdiff "$1" "$OUT" +} + +diff() { + # Iterate trough source directory but ignore any git repositories + # Note that it's design decision to not iterate trough target directory. + if [ -d "$1" ]; then + # This is check if we have correct inst command basically. If it is + # directory than it have to have trailing slash to ensure that no + # additional directory is created. + if ! echo "$1" | grep -qE '/$'; then + echo ERROR: Directory without trailing slash detected: $1 + exit 1 + fi + # Got trough all files ignoring git repositories + for f in `find "$1" \( -type d -exec test -e '{}'/.git \; \) -prune -o -type f -print`; do + F="${f#$1}" + dodiff "$1/$F" "$2/$F" + done + # Check if we have all directories ignoring those in git repositories + for d in `find "$1" -type d -print -exec test -e '{}'/.git \; -prune`; do + D="${d#$1}" + if [ ! -d "$2/$D" ]; then + echo "Directory not installed: $1/$D => $2/$D" + read -p "Install? (Y/n) " + if [[ $REPLY =~ ^[Yy]?$ ]]; then + doinst "$1/$D/" "$2/$D" + fi + fi + done + # Now checkout git repositories + for g in `find "$1" -name .git -type f -printf '%h '`; do + G="${g#$1}" + COMMIT=$( cd "$1/$G" && git rev-parse HEAD ) + echo "Checkout of git repository: $2/$G" + ( cd "$2/$G" && git --work-tree=. checkout -f "$COMMIT" ) + done + else + dodiff "$1" "$2" + fi +} + +# Managing two git trees with master has small inconvenience that git allows only +# single branch checkout in all work trees, so as it sets now git will execute all +# commands not on deployed tree but on tree in this repository, so we need specify +# work tree on command line every time we want target deployed work tree. +doinst() { + echo rsync -rlpt $1 $2 + rsync -rlpt $1 $2 + # Now edit all .git files in target directory + for g in `find "$2" -name '.git' -type f`; do + if ! grep -q "gitdir: " "$g"; then + continue # Probably not a git repository or who knows. + fi + echo "Pointing git repository $g to this repository" + echo gitdir: $PWD/.git`sed "s/^gitdir: [./]*git//" "$g"` > "$g" + done +} + +inst() { + if [ -e "$2" ]; then + # If output exists, execute diff instead + diff $1 $2 + return + fi + doinst $1 $2 +} |