Add imported code from dotfilesHEADmain

4 files changed, 145 insertions, 0 deletions

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..a471dec
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,86 @@
+.POSIX:
+DATE         = 1970-01-01
+VERSION      = 0.1.0
+NAME         = cronjob
+NAME_UC      = $(NAME)
+LANGUAGES    = en
+## Installation prefix.  Defaults to "/usr".
+PREFIX       = /usr
+BINDIR       = $(PREFIX)/bin
+LIBDIR       = $(PREFIX)/lib
+INCLUDEDIR   = $(PREFIX)/include
+SRCDIR       = $(PREFIX)/src/$(NAME)
+SHAREDIR     = $(PREFIX)/share
+LOCALEDIR    = $(SHAREDIR)/locale
+MANDIR       = $(SHAREDIR)/man
+EXEC         = ./
+## Where to store the installation.  Empty by default.
+DESTDIR      =
+LDLIBS       =
+
+
+
+.SUFFIXES:
+
+
+
+all:
+include deps.mk
+
+sources = \
+	$(sources.sh)                  \
+
+
+derived-assets = \
+
+side-assets = \
+
+
+
+## Default target.  Builds all artifacts required for testing
+## and installation.
+all: $(derived-assets)
+
+
+
+check-unit:
+
+
+check-integration:
+
+
+## Run all tests.  Each test suite is isolated, so that a parallel
+## build can run tests at the same time.  The required artifacts
+## are created if missing.
+check: check-unit check-integration
+
+
+
+## Remove *all* derived artifacts produced during the build.
+## A dedicated test asserts that this is always true.
+clean:
+	rm -rf $(derived-assets) $(side-assets)
+
+
+## Installs into $(DESTDIR)$(PREFIX).  Its dependency target
+## ensures that all installable artifacts are crafted beforehand.
+install: all
+	mkdir -p \
+		'$(DESTDIR)$(BINDIR)'     \
+		'$(DESTDIR)$(SRCDIR)'
+	cp $(sources.sh)     '$(DESTDIR)$(BINDIR)'
+	cp $(sources.sh)     '$(DESTDIR)$(SRCDIR)'
+
+
+## Uninstalls from $(DESTDIR)$(PREFIX).  This is a perfect mirror
+## of the "install" target, and removes *all* that was installed.
+## A dedicated test asserts that this is always true.
+uninstall:
+	rm -rf \
+		'$(DESTDIR)$(SRCDIR)'
+	for f in $(sources.sh); do \
+		rm -f '$(DESTDIR)$(BINDIR)'/"$${f#src/}"; \
+	done
+
+
+ALWAYS:
diff --git a/deps.mk b/deps.mk
new file mode 100644
index 0000000..a4a3320
--- /dev/null
+++ b/deps.mk
@@ -0,0 +1,3 @@
+sources.sh = \
+	src/cronjob \
+
diff --git a/mkdeps.sh b/mkdeps.sh
new file mode 100755
index 0000000..8204798
--- /dev/null
+++ b/mkdeps.sh
@@ -0,0 +1,13 @@
+#!/bin/sh
+set -eu
+
+export LANG=POSIX.UTF-8
+
+varlist() {
+	printf '%s = \\\n' "$1"
+	sort | sed 's|^\(.*\)$|\t\1 \\|'
+	printf '\n'
+}
+
+
+find src/* -type f -perm -111 | varlist 'sources.sh'
diff --git a/src/cronjob b/src/cronjob
new file mode 100755
index 0000000..b6798f0
--- /dev/null
+++ b/src/cronjob
@@ -0,0 +1,43 @@
+#!/bin/sh
+. /etc/rc
+set -eu
+
+
+CMD="$*"
+HOSTNAME="$(hostname)"
+FROM="cronjob@$HOSTNAME"
+TIMEOUT='14400' # four hours
+STATUS_F="$(mkstemp)"
+CLOCK_F="$(mkstemp)"
+OUT="$(mkstemp)"
+
+email() {
+	{
+		cat <<-EOF
+			Content-Type: text/plain; charset=UTF-8
+			Content-Transfer-Encoding: 8bit
+			From: $FROM
+			To: root@localhost
+			Subject: (exit status: $(cat "$STATUS_F")) - $HOSTNAME: $CMD
+
+		EOF
+		cat "$OUT"
+	} | sendmail -t -f "$FROM"
+}
+trap 'email; rm -f "$OUT" "$STATUS_F" "$CLOCK_F"' EXIT
+
+{
+	cat <<-EOF
+		Running commad: $CMD
+		Starting at: $(timestamp)
+
+	EOF
+
+	statusf "$STATUS_F" clock -o "$CLOCK_F" timeout "$TIMEOUT" nicely "$@"
+
+	cat <<-EOF
+
+		Finished at: $(timestamp)
+		Duration: $(minutes "$(cat "$CLOCK_F")")
+	EOF
+} 2>&1 | pre "[$CMD]" | ts '%Y-%m-%dT%H:%M:%S' | tee "$OUT" >> /var/log/cronjobs.log