Simplify Emacs build script

With some gratuitous variable renaming (add some _dir suffixes) &
bashism banishment (port a [[ =~ ]] to plain case).

1 files changed, 12 insertions, 22 deletions

diff --git a/.local/bin/emacs-build b/.local/bin/emacs-build
index 375a402..c63338f 100755
--- a/.local/bin/emacs-build
+++ b/.local/bin/emacs-build
@@ -2,9 +2,9 @@
 
 set -eux
 
-src=$(realpath "${EMACS_SRC:-.}")
-build=$(realpath "${EMACS_BUILD:-.}")
-config_h=${build}/src/config.h
+src_dir=$(realpath "${EMACS_SRC:-.}")
+build_dir=$(realpath "${EMACS_BUILD:-.}")
+config_h=${build_dir}/src/config.h
 
 make="make -j$(nproc --all)"
 configure_flags=(
@@ -77,27 +77,17 @@ then
     )
 fi
 
-if ! test -f "${src}"/Makefile
+if ! test -f "${src_dir}"/Makefile
 then
-        ${make} -C "${src}" configure
+    ${make} -C "${src_dir}" configure
 fi
 
-check-config ()
-{
-    if ! test -f "${config_h}"
-    then
-        return 1
-    fi
-
-    local pattern="#define EMACS_CONFIG_OPTIONS \"${configure_flags[@]}\""
-    grep "${pattern}" "${config_h}"
-}
-
-cd "${build}"
-
-if ! check-config
-then
-    "${src}"/configure "${configure_flags[@]}"
-fi
+cd "${build_dir}"
 
+# Had logic to check src/config.h:EMACS_CONFIG_OPTIONS to determine
+# whether running 'configure' is redundant.  Threw it all to the wind:
+# date-based --prefix changes everyday; build times are not as long as
+# they used to be; I can always invoke 'make' if I want fast iteration
+# over build errors.
+"${src_dir}"/configure "${configure_flags[@]}"
 ${make} "$@"