forked from lda/telodendria
256 lines
6.5 KiB
Bash
256 lines
6.5 KiB
Bash
#!/usr/bin/env sh
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#
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# td: "Telodendria Developer"
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#
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# A helper script that operates sort of like Make, except it is
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# a lot easier to read and write than a Makefile, and it works on
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# any POSIX system.
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#
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# I chose to use a custom build script instead of using Make because
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# it is much more portable and flexible. This script doesn't only
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# handle building the code, it also handles formatting it, as well
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# as generating patch files.
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#
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# Set variables
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#
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# This syntax may look odd, but as far as I can tell, it is POSIX,
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# and it allows the values to be overridden by the environment,
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# such that these serve more as sane defaults than hard requirements.
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#
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: "${TELODENDRIA_VERSION:=0.0.0}"
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: "${CVS_TAG:=Telodendria-$(echo $TELODENDRIA_VERSION | sed 's/\./_/g')}"
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: "${DEFINES:=-D_BSD_SOURCE -D_POSIX_C_SOURCE=199506L -DTELODENDRIA_VERSION=\"$TELODENDRIA_VERSION\"}"
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: "${INCLUDES:=-Isrc/include}"
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: "${CC:=cc}"
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: "${CFLAGS:=-Wall -Wextra -pedantic -ansi -std=c89 -O3 $DEFINES $INCLUDES}"
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: "${LDFLAGS:=-pthread -static -flto -fdata-sections -ffunction-sections -s -Wl,-static -Wl,-gc-sections}"
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: "${PROG:=telodendria}"
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# If a .env file exists in the current directory, we load it.
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# As Telodendria's build infrastructure relies heavily on
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# environment variables, we allow users to specify their
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# Telodendria-specific variables in a dedicated .env so they don't
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# have to pollute their environment.
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if [ -f "$(pwd)/.env" ]; then
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. "$(pwd)/.env"
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fi
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if [ "$DEBUG" = "1" ]; then
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CFLAGS="$CFLAGS -O0 -g"
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LDFLAGS="$LDFLAGS -v"
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PROG="$PROG-debug"
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fi
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# Check the modificiation time of a file. This is used to do
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# incremental builds; we only want to rebuild files that have
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# have changed.
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mod_time() {
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if [ -n "$1" ] && [ -f "$1" ]; then
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case "$(uname)" in
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Linux)
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stat -c %Y "$1"
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;;
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*BSD)
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stat -f %m "$1"
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;;
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*)
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# Platform unknown, force rebuilding the whole
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# project every time.
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echo "0"
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;;
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esac
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else
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echo "0"
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fi
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}
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# Build the source code, and generate the 'build/telodendria'
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# binary.
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recipe_build() {
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mkdir -p build
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do_rebuild=0
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objs=""
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for src in $(find src -name '*.c'); do
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obj=$(echo "$src" | sed -e 's/^src/build/' -e 's/\.c$/\.o/')
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objs="$objs $obj"
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if [ $(mod_time "$src") -gt $(mod_time "$obj") ]; then
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echo "CC $obj"
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obj_dir=$(dirname "$obj")
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mkdir -p "$obj_dir"
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if ! $CC $CFLAGS -c -o "$obj" "$src"; then
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exit 1
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fi
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do_rebuild=1
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fi
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done
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if [ $do_rebuild -eq 1 ] || [ ! -f "build/$PROG" ]; then
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echo "LD build/$PROG"
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$CC $LDFLAGS -o "build/$PROG" $objs
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else
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echo "Up to date."
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fi
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}
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# Remove all build files, which can be regenerated by re-running the
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# build recipe.
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recipe_clean() {
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rm -rv build
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}
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# Format the source code by updating the copyright headers and
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# then running indent(1) on each source code file.
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recipe_format() {
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find src -name '*.c' -or -name '*.h' | while IFS= read -r src; do
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# Update the headers
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srcHeader=$(grep -n -m 1 '^ \*/' "$src" | cut -d ':' -f 1)
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head "-n$srcHeader" "$src" |
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diff -u -p - src/header.txt |
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patch "$src"
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# Format the source code
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if indent "$src"; then
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rm $(basename "$src").BAK
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fi
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done
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}
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# Execute all the unit tests and report any failures.
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recipe_test() {
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passed=0
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failed=0
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mkdir -p "build/tests"
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for testSrc in $(find tests -name 'Test*.c'); do
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testBin=$(basename "$testSrc" .c)
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testBin="build/tests/$testBin"
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if ! $CC $CFLAGS -I src -o "$testBin" "$testSrc"; then
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failed=$((failed + 1))
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break;
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fi
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if ! "$testBin"; then
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failed=$((failed + 1))
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break;
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fi
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passed=$((passed + 1))
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done
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echo "Passed: $passed, failed: $failed"
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echo "Total: $((passed + failed))"
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}
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# Deploy the Telodendria website by copying the required files to
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# a web root defined by TELODENDRIA_PUB.
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recipe_site() {
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if [ -z "$TELODENDRIA_PUB" ]; then
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echo "No public root directory specified."
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echo "Set TELODENDRIA_PUB."
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exit 1
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fi
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# In the future, this might do more.
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cp -v site/* "$TELODENDRIA_PUB/"
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}
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# Generate a release tarball, checksum and sign it, and push it to
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# the web root.
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recipe_release() {
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if [ -z "$TELODENDRIA_PUB" ]; then
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echo "No public root directory specified."
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echo "Set TELODENDRIA_PUB."
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exit 1
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fi
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mkdir -p "$TELODENDRIA_PUB/pub/v$TELODENDRIA_VERSION"
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cd "$TELODENDRIA_PUB/pub/v$TELODENDRIA_VERSION"
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# Generate release tarball
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cvs export "-r$CVS_TAG" "Telodendria"
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mv "Telodendria" "Telodendria-v$TELODENDRIA_VERSION"
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tar -czf "Telodendria-v$TELODENDRIA_VERSION.tar.gz" \
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"Telodendria-v$TELODENDRIA_VERSION"
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rm -r "Telodendria-v$TELODENDRIA_VERSION"
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# Checksum release tarball
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sha256 "Telodendria-v$TELODENDRIA_VERSION.tar.gz" \
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> "Telodendria-v$TELODENDRIA_VERSION.tar.gz.sha256"
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# Sign release tarball
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if [ ! -z "$TELODENDRIA_SIGNIFY_SECRET" ]; then
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signify -S -s "$TELODENDRIA_SIGNIFY_SECRET" \
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-m "Telodendria-v$TELODENDRIA_VERSION.tar.gz" \
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-x "Telodendria-v$TELODENDRIA_VERSION.tar.gz.sig"
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else
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echo "Warning: TELODENDRIA_SIGNIFY_SECRET not net."
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echo "The built tarball will not be signed."
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fi
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}
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# Generate a formatted patch file. The Telodendria project isn't
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# really picky about how patches look, but this is how we like them
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# best. Makes them easy to read.
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recipe_patch() {
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# If the user has not set their MXID, try to deduce one from
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# their system.
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if [ -z "$MXID" ]; then
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MXID="@${USER}:$(hostname)"
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fi
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# If the user has not set their DISPLAY_NAME, try to deduce it
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# from their system.
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if [ -z "$DISPLAY_NAME" ]; then
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DISPLAY_NAME=$(getent passwd "$USER" | cut -d ':' -f 5 | cut -d ',' -f 1)
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fi
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# If the user has not set their EDITOR, use a safe default.
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# (vi should be available on any POSIX system)
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if [ -z "$EDITOR" ]; then
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EDITOR=vi
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fi
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NORMALIZED_MXID=$(echo "$MXID" | sed -e 's/@//g' -e 's/:/-/g')
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PATCH_FILE="${NORMALIZED_MXID}_$(date +%s).patch"
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# Generate the actual patch file
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# Here we write some nice headers, and then do a cvs diff.
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(
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printf 'From: "%s" <%s>\n' "$DISPLAY_NAME" "$MXID"
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echo "Date: $(date)"
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echo "Subject: "
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echo
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cvs -q diff -uNp $PATCHSET | grep -v '^\? '
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) > "$PATCH_FILE"
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"$EDITOR" "$PATCH_FILE"
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echo "$PATCH_FILE"
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}
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recipe_diff() {
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tmp_patch="/tmp/telodendria-$(date +%s).patch"
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cvs -q diff -uNp $PATCHSET > "$tmp_patch"
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if [ -z "$PAGER" ]; then
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PAGER="less -F"
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fi
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$PAGER "$tmp_patch"
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rm "$tmp_patch"
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}
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# Execute the user-specified recipes.
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for recipe in $@; do
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recipe_$recipe
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done
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# If no recipe was provided, run a build.
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if [ -z "$1" ]; then
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recipe_build
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fi
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