Simple build script for basic one-document pdflatex projects
The script searches for the .latex.build config file recursively starting from the current working directory.
.latex.build files describes a particular build:
latex-build-command = < build command >
latex-work-dir = < build working directory >
latex-input-doc = < build source >
We will denote the location of the .latex.build file as CFG_DIR.
If no build command specified, the LATEX_BUILD_COMMAND environment variable will be used. Build command may also refer to environment variables.
Build source option is relative to CFG_DIR. If no build source specified, the first *.tex file found starting from CFG_DIR is used. If the LATEX_INPUT_DOC environment variable is present, it will be tried first.
Working directory is also relative to CFG_DIR. If no working directory specified, CFG_DIR is used instead. If the LATEX_WORK_DIR environment variable is present, it will be tried first.
The minimal configuration is empty .latex.build file and the LATEX_BUILD_COMMAND environment variable set.
Whether the build script should fail the build is controlled via the FAIL_BUILD_ON_ERROR environment variable (possible values are true or yes, case insensitive).