256 lines
8.9 KiB
Bash
Executable File
256 lines
8.9 KiB
Bash
Executable File
#!/bin/bash
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# set -x
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source ./log_helpers
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source ./general_utils
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# if [ ${git_helpers_sourced:-1} = "1" ]; then
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# readonly git_helpers_sourced=${BASH_SOURCE[0]}
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readonly repository_already_up_to_date=2
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#
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exec_git_command () {
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local func="${FUNCNAME[0]}"
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log_debug "$func:${LINENO} exec-ing [$*]"
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local __git_result=$(exec_process_substitution $*)
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log_debug "$func:${LINENO} result=$__git_result"
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printf '%s' "$__git_result"
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}
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#
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latest_commit () {
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local func="${FUNCNAME[0]}"
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# git reflog -> 46c5896 HEAD@{0}: commit: Made update_helpers executable
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local c=$(git reflog | grep "HEAD@{0}" | cut -d" " -f1)
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if ! [ -z "$c" ]; then
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if grep -qE "^[[:xdigit:]]{6,}$" <<< $c; then
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log_debug "$func:${LINENO} commit -> $c"
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printf "%s\n" "$c"
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else
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log_crit "$func:${LINENO} wrong format for commit c=$c"
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fi
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else
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log_crit "$func:${LINENO} 'git reflog' result empty"
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fi
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}
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# fallback if something went wrong: revert to last valid commit
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revert_to_commit_before_pull () {
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local func="${FUNCNAME[0]}"
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if ! [ -z "$commit_before_pull" ]; then
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if grep -qE "^[[:xdigit:]]{6,}$" <<< $commit_before_pull; then
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`git reset --hard "$commit_before_pull"`
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if [ $? -eq 0 ]; then
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log_info "$func: git reset --hard $commit_before_pull"
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return 0
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fi
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log_crit "$func: 'git reset --hard $commit_before_pull' failed!"
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fi
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log_crit "$func: wrong format for commit_before_pull"
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fi
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log_crit "$func: empty commit_before_pull"
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return 1
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}
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# revert_to_commit_before_pull
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git_branch () {
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# always relative to a git repository
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echo $(git branch -a | grep '*' | awk '{ print $2 }')
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}
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git_customer_branch () {
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if cd_customer_repository; then
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customer_branch=$(git_branch)
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cd_home;
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echo $customer_branch
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fi
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}
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# clone the customer repository in ./workspace.
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# this is done only once.
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#
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# Cloning into 'customer_281'...
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# remote: Enumerating objects: 1087, done.
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# remote: Counting objects: 100% (1087/1087), done.
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# remote: Compressing objects: 100% (946/946), done.
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# remote: Total 1087 (delta 404), reused 0 (delta 0), pack-reused 0
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# Receiving objects: 100% (1087/1087), 103.27 KiB | 873.00 KiB/s, done.
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# Resoving deltas: 100% (410/410), done.
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#
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clone_customer_repository () {
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local func="${FUNCNAME[0]}"
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if [ "$PWD" != "$WORKING_DIRECTORY" ]; then
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log_fatal "$func:${LINENO} PD != WD ($PWD != $WORKING_DIRECTORY)"
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fi
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mkdir -p "./$WORKSPACE_DIR"
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# check if the directory is empty. If so, clone the
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# customer repository
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if ! find ./$WORKSPACE_DIR -mindepth 1 -maxdepth 1 | read; then
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log_info "$func:${LINENO} cloning ${1} into ${PWD}/${WORKSPACE_DIR}..."
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if ! cd "./$WORKSPACE_DIR"; then
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update_psa_clone_error # message to ISMAS
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log_fatal "$func:${LINENO} can not change to $WORKSPACE_DIR"
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fi
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if ! exec_git_command git clone "$1"; then
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update_psa_clone_error # message to ISMAS
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log_fatal "$func:${LINENO} can not clone $1"
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fi
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########################## CLONING DONE ############################
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log_debug "$func:${LINENO} cloning ${1} done"
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# after cloning, cd into repository, and re-initialize,
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# setting the work-tree as "/". This has the effect that
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# a "git pull" will automatically fetched files in the
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# corresponding sytem-folders.
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####################### CD INTO REPOSITORY ##########################
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if ! cd ${CUSTOMER_ID_BASE_DIR}; then
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update_psa_clone_error # message to ISMAS
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log_fatal "$func:${LINENO} can not change to $CUSTOMER_ID_BASE_DIR"
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fi
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log_debug "$func:${LINENO} cd into $CUSTOMER_ID_BASE_DIR"
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##################### CONFIGURE HOOKS DIRECTORY ######################
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if ! exec_git_command git config core.hooksPath .githooks; then
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update_psa_clone_error # message to ISMAS
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log_fatal "$func:${LINENO} can not configure hooks directory"
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fi
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###################### CHECKOUT LOCAL BRANCH #########################
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if ! exec_git_command git checkout "$LOCAL_BRANCH"; then
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update_psa_clone_error # message to ISMAS
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log_fatal "$func:${LINENO} can not checkout $LOCAL_BRANCH"
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fi
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log_debug "$func:${LINENO} checked out local branch $LOCAL_BRANCH"
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######################## CONFIGURE WORKTREE ##########################
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if ! exec_git_command git config core.worktree "/"; then
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update_psa_clone_error # message to ISMAS
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log_fatal "$func:${LINENO} can not configure worktree '/'"
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fi
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log_debug "$func:${LINENO} configured worktree '/'"
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########################### FETCH ALL #################################
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if ! exec_git_command git fetch --all; then
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update_psa_clone_error # message to ISMAS
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log_fatal "$func:${LINENO} can not fetch --all for $LOCAL_BRANCH"
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fi
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log_debug "$func:${LINENO} fetch repository"
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########################## RE-INIT REPOSITORY ########################
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if ! exec_git_command git reset --hard "$LOCAL_BRANCH"; then
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update_psa_clone_error # message to ISMAS
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log_fatal "$func:${LINENO} re-init of $LOCAL_BRANCH failed"
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fi
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log_debug "$func:${LINENO} reset --hard $LOCAL_BRANCH"
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INITIAL_CLONE=true
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log_debug "$func:${LINENO} re-init of ${1} done"
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update_psa_clone_customer_repository
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else
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# the directory is not empty, so we assume the
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# customer-repository has been cloned already
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if ! [[ -d "./${WORKSPACE_DIR}/$CUSTOMER_ID" ]]; then
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log_fatal "$func:${LINENO} $PWD $WORKSPACE_DIR/$CUSTOMER_ID"\
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"wrong repository: $(ls -d './${WORKSPACE_DIR}/*')"
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fi
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local __m="./${WORKSPACE_DIR}/$CUSTOMER_ID exists"
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log_info "$func:${LINENO} $__m, no clone necessary"
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fi
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cd_home
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log_info "$func:${LINENO} nach cd_home $PWD"
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}
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# clone_customer_repository ->
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# https://git.mimbach49.de/GerhardHoffmann/customer_281.git
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cd_customer_repository () {
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local func="${FUNCNAME[0]}"
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if [ "$PWD" != "$WORKING_DIRECTORY" ]; then
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log_fatal "$func:${LINENO} PD != WD ($PWD != $WORKING_DIRECTORY)"
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fi
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if ! [[ -d "$CUSTOMER_ID_BASE_DIR" ]]; then
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log_fatal "$func:${LINENO}: $CUSTOMER_ID_BASE_DIR does not exist!"
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fi
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if ! cd "$CUSTOMER_ID_BASE_DIR"; then
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log_fatal "$func:${LINENO}: cannot cd to $CUSTOMER_ID_BASE_DIR !!!"
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fi
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log_debug "$func:${LINENO}: cd to $CUSTOMER_ID_BASE_DIR"
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return 0
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}
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cd_home () {
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if cd "$WORKING_DIRECTORY" &>/dev/null ; then
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return 0
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fi
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return 1
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}
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pull_customer_repository () {
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local func="${FUNCNAME[0]}"
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if ! cd_customer_repository; then
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return 1
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fi
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log_crit "$func:${LINENO}: executing 'git pull'..."
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exec_git_command 'git pull'
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# GIT_UPDATE_LOG updated by hook post-merge. it contains the names of the
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# changed files or opkg-commands to execute.
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# If 'git pull' has fetched new data, then there are lines starting with
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# DOWNLOAD or EXECUTE.
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if grep -qE "^[[:space:]]*(DOWNLOAD|EXECUTE)" "$GIT_UPDATE_LOG"; then
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log_info "$func:${LINENO}: new data fetched from repository"
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cd_home; return 0
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fi
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log_warn "$func:${LINENO}: no data fetched from repository"
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cd_home; return 1
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}
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# pull_customer_repository customer_281
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changed_file_names () {
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local func="${FUNCNAME[0]}"
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if cd_customer_repository ; then
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local git_res=$(exec_git_command 'git diff --stat master@{1} master')
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git_res=${git_res//[$'\r\n\t']/ }
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log_debug "$func:${LINENO}: git_res=$git_res"
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local file_names=""
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for f in ${KNOWN_FILES[@]} ; do
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if grep -qE "${f}" <<< "$git_res"; then
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if ! [ -z $file_names ]; then
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file_names="$f $file_names"
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else
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file_names="$f"
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fi
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log_debug "$func:${LINENO}: $f found in $git_res"
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fi
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done
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cd_home; log_debug "$func:${LINENO}: file_names=$file_names" ;
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printf '%s' "$file_names"
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else
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log_crit "$func:${LINENO}: cannot cd to $customer_repository "\
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"while in $PWD"
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fi
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}
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get_blob () { # get the blob of the file(name) passed as $1
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# note: this can be used for any file in the filesystem
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echo $(git hash-object $1)
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}
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get_commit_for_blob () {
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blob=$(get_blob $1)
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if [ ! -z $blob ]; then
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# search for the blob in all commits for the file(name) $1
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echo $(echo $(git log --all --pretty=format:%H -- $1) |
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xargs -I{} sh -c "git ls-tree {} -- $1 |
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grep -q $blob && echo {}")
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fi
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}
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