Merge pull request #58 from janschulz/jinja_processing
Excluding yadm.md changes (these will happen during a release)
This commit is contained in:
Tim Byrne
commit
fd6fa8c923
4 changed files with 233 additions and 16 deletions
151
test/113_accept_jinja_alt.bats
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151
test/113_accept_jinja_alt.bats
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@ -0,0 +1,151 @@
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load common
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load_fixtures
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status=;output=; #; populated by bats run()
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IN_REPO=(alt* "dir one")
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export TEST_TREE_WITH_ALT=1
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setup() {
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destroy_tmp
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build_repo "${IN_REPO[@]}"
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}
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function test_alt() {
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local alt_type="$1"
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local test_overwrite="$2"
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local auto_alt="$3"
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#; detemine test parameters
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case $alt_type in
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base)
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real_name="alt-jinja"
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file_content_match="-${T_SYS}-${T_HOST}-${T_USER}"
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;;
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override_all)
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real_name="alt-jinja"
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file_content_match="custom_class-custom_system-custom_host-custom_user"
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;;
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esac
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if [ "$test_overwrite" = "true" ] ; then
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#; create incorrect links (to overwrite)
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echo "BAD_CONTENT" "$T_DIR_WORK/$real_name"
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else
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#; verify real file doesn't already exist
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if [ -e "$T_DIR_WORK/$real_name" ] ; then
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echo "ERROR: real file already exists before running yadm"
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return 1
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fi
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fi
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#; configure yadm.auto_alt=false
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if [ "$auto_alt" = "false" ]; then
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git config --file="$T_YADM_CONFIG" yadm.auto-alt false
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fi
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#; run yadm (alt or status)
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if [ -z "$auto_alt" ]; then
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run "${T_YADM_Y[@]}" alt
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#; validate status and output
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if [ "$status" != 0 ] || [[ ! "$output" =~ Creating.+$real_name ]]; then
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echo "OUTPUT:$output"
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echo "ERROR: Could not confirm status and output of alt command"
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return 1;
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fi
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else
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#; running any passed through Git command should trigger auto-alt
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run "${T_YADM_Y[@]}" status
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if [ -n "$auto_alt" ] && [[ "$output" =~ Creating.+$real_name ]]; then
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echo "ERROR: Reporting of jinja processing should not happen"
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return 1
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fi
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fi
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#; validate link content
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if [[ "$alt_type" =~ none ]] || [ "$auto_alt" = "false" ]; then
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#; no real file should be present
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if [ -L "$T_DIR_WORK/$real_name" ] ; then
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echo "ERROR: Real file should not exist"
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return 1
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fi
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else
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#; correct real file should be present
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local file_content
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file_content=$(cat "$T_DIR_WORK/$real_name")
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if [ "$file_content" != "$file_content_match" ]; then
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echo "file_content: ${file_content}"
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echo "expected_content: ${file_content_match}"
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echo "ERROR: Link content is not correct"
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return 1
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fi
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fi
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}
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@test "Command 'alt' (select jinja)" {
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echo "
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When the command 'alt' is provided
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and file matches ##yadm_tmpl
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Report jinja template processing
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Verify that the correct content is written
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Exit with 0
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"
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test_alt 'base' 'false' ''
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}
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@test "Command 'auto-alt' (enabled)" {
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echo "
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When a command possibly changes the repo
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and auto-alt is configured true
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and file matches ##yadm_tmpl
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automatically process alternates
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report no linking (not loud)
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Verify that the correct content is written
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"
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test_alt 'base' 'false' 'true'
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}
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@test "Command 'auto-alt' (disabled)" {
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echo "
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When a command possibly changes the repo
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and auto-alt is configured false
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and file matches ##yadm_tmpl
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Report no jinja template processing
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Verify no content
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"
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test_alt 'base' 'false' 'false'
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}
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@test "Command 'alt' (overwrite existing content)" {
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echo "
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When the command 'alt' is provided
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and file matches ##yadm_tmpl
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and the real file exists, and is wrong
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Report jinja template processing
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Verify that the correct content is written
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Exit with 0
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"
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test_alt 'base' 'true' ''
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}
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@test "Command 'alt' (overwritten settings)" {
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echo "
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When the command 'alt' is provided
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and file matches ##yadm_tmpl
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after setting local.*
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Report jinja template processing
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Verify that the correct content is written
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Exit with 0
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"
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GIT_DIR="$T_DIR_REPO" git config local.os custom_system
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GIT_DIR="$T_DIR_REPO" git config local.user custom_user
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GIT_DIR="$T_DIR_REPO" git config local.host custom_host
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GIT_DIR="$T_DIR_REPO" git config local.class custom_class
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test_alt 'override_all' 'false' ''
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}
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@ -202,8 +202,10 @@ function create_worktree() {
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make_parents "$DIR_WORKTREE/$f"
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echo "$f" > "$DIR_WORKTREE/$f"
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done
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echo "{{ YADM_CLASS }}-{{ YADM_OS }}-{{ YADM_HOSTNAME }}-{{ YADM_USER }}" > "$DIR_WORKTREE/alt-jinja##yadm_tmpl"
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fi
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if [ ! -z "$TEST_TREE_WITH_WILD" ] ; then
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#; wildcard test data - yes this is a big mess :(
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#; none
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56
yadm
56
yadm
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@ -114,30 +114,32 @@ function alt() {
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require_repo
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match_class="$(config local.class)"
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if [ -z "$match_class" ] ; then
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local_class="$(config local.class)"
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if [ -z "$local_class" ] ; then
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match_class="%"
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else
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match_class="$local_class"
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fi
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match_class="(%|$match_class)"
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match_system="$(config local.os)"
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if [ -z "$match_system" ] ; then
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match_system=$(uname -s)
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local_system="$(config local.os)"
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if [ -z "$local_system" ] ; then
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local_system=$(uname -s)
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fi
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match_system="(%|$match_system)"
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match_system="(%|$local_system)"
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match_host="$(config local.host)"
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if [ -z "$match_host" ] ; then
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match_host=$(hostname)
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match_host=${match_host%%.*} #; trim any domain from hostname
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local_host="$(config local.host)"
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if [ -z "$local_host" ] ; then
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local_host=$(hostname)
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local_host=${local_host%%.*} #; trim any domain from hostname
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fi
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match_host="(%|$match_host)"
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match_host="(%|$local_host)"
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match_user="$(config local.user)"
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if [ -z "$match_user" ] ; then
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match_user=$(id -u -n)
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local_user="$(config local.user)"
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if [ -z "$local_user" ] ; then
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local_user=$(id -u -n)
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fi
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match_user="(%|$match_user)"
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match_user="(%|$local_user)"
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#; regex for matching "<file>##CLASS.SYSTEM.HOSTNAME.USER"
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match1="^(.+)##(()|$match_system|$match_system\.$match_host|$match_system\.$match_host\.$match_user)$"
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@ -193,6 +195,30 @@ function alt() {
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done
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done
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#; loop over all "tracked" files
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#; for every file which is a *##yadm_tmpl create a real file
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local IFS=$'\n'
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local match="^(.+)##yadm_tmpl"
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local envtpl_bin=$(which envtpl)
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for tracked_file in $("$GIT_PROGRAM" ls-files | sort) $(cat "$YADM_ENCRYPT" 2>/dev/null); do
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tracked_file="$YADM_WORK/$tracked_file"
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if [ -e "$tracked_file" ] ; then
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if [[ $tracked_file =~ $match ]] ; then
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if [[ -z "$envtpl_bin" ]]; then
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debug "'envtpl' (pip install envtpl) not available, not creating $real_file from template $tracked_file"
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[ -n "$loud" ] && echo "'envtpl' (pip install envtpl) not available, not creating $real_file from template $tracked_file"
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else
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real_file="${BASH_REMATCH[1]}"
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debug "Creating $real_file from template $tracked_file"
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[ -n "$loud" ] && echo "Creating $real_file from template $tracked_file"
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YADM_CLASS="$local_class" YADM_OS="$local_system" \
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YADM_HOSTNAME="$local_host" YADM_USER="$local_user" \
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$envtpl_bin < $tracked_file > $real_file
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fi
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fi
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fi
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done
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}
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function bootstrap() {
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40
yadm.1
40
yadm.1
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@ -91,7 +91,8 @@ Instead use the
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command (see below).
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.TP
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.B alt
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Create symbolic links for any managed files matching the naming rules describe in the ALTERNATES section.
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Create symbolic links and process jinja templates for any managed files matching the naming rules describe
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in the ALTERNATES section.
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It is usually unnecessary to run this command, as
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.B yadm
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automatically processes alternates by default.
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@ -489,6 +490,43 @@ using the configuration options
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and
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.BR local.user .
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If
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.BR envtpl
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(
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.BR pip\ install\ envtpl
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) is available, you can also create
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.B jinja
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templates (http://jinja.pocoo.org/) which will transformed into real files.
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.B yadm
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will treat files ending in
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##yadm_tmpl
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as jinja templates. During processing, the following variables are
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set according to the above rules:
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YADM_CLASS
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YADM_OS
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YADM_HOSTNAME
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YADM_USER
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E.g. a file 'whatever##yadm_tmpl' with the following content
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{% if YADM_USER == 'harvey' -%}
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config={{YADM_CLASS}}-{{ YADM_OS }}
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{% else -%}
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config=dev-whatever
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{% endif -%}
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would output a file with the follwing content, if the username would be 'harvey'
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config=work-Linux
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and the following otherwise:
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config=dev-whatever
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.SH ENCRYPTION
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It can be useful to manage confidential files, like SSH or GPG keys, across
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multiple systems. However, doing so would put plain text data into a Git
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