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| -rwxr-xr-x | bin/ootb | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/bin/ootb b/bin/ootb new file mode 100755 index 0000000..3aa58db --- /dev/null +++ b/bin/ootb @@ -0,0 +1,103 @@ +#!/bin/sh +set -eu + +usage() { + cat <<-'EOF' + Usage: + ootb BUILD_DIRECTORY < FILE... + ootb -h + EOF +} + +help() { + cat <<-'EOF' + + + Options: + -h, --help show this message + + BUILD_DIRECTORY the path of the build directory + FILE the files to be linked + + + Create a directory out of symlinks of the given files. + + The goal is to enable parallel build directories to coexist, + so that one do *O*ut *O*f *T*ree *B*uilds without requiring the + build system or the project to explicitly support it. + + If a repository contains the files: + + .git/ + Makefile + README.md + src/ + file1.ext + file2.ext + + Running `git ls-files | ootb build-1/` would create the + 'build-1/' directory with: + + build-1/ + Makefile -> /absolute/path/to/Makefile + README.md -> /absolute/path/to/README.md + src/ + file1.ext -> /absolute/path/to/file1.ext + file2.ext -> /absolute/path/to/file2.ext + + With that one can `cd build-1/` and run builds there, without + the build artifacts littering the source tree. Also, one could + create a build-2/ directory, where different compiler flags or + build options are given, such as debug/release, while sharing the + underlying source code. + + + Examples: + + Create a 'build/' directory with the files from the Git repository: + + $ git ls-files | ootb build/ + EOF +} + + +for flag in "$@"; do + case "$flag" in + --) + break + ;; + --help) + usage + help + exit + ;; + *) + ;; + esac +done + +while getopts 'h' flag; do + case "$flag" in + h) + usage + help + exit + ;; + *) + usage >&2 + exit 2 + ;; + esac +done +shift $((OPTIND - 1)) + + +BUILD_DIRECTORY="${1:-}" +eval "$(assert-arg "$BUILD_DIRECTORY" 'BUILD_DIRECTORY')" +mkdir -p "$BUILD_DIRECTORY" + + +while read -r f; do + mkdir -p "$BUILD_DIRECTORY"/"$(dirname "$f")" + ln -fs "$PWD"/"$f" "$BUILD_DIRECTORY"/"$f" +done |