Fix bugs

* Fix env diff for variables containing leading/trailing whitespace
* Run whole script in 'clean' (non-direnv) environment (fixes prepending/appending)

Makefile

@@ -1,9 +0,0 @@
-build:
-
-install:
-	mkdir -p $(PREFIX)/bin $(PREFIX)/share
-	cp direnv-cache $(PREFIX)/bin
-	cp direnvrc $(PREFIX)/share
-
-check:
-	term-test -s tests

default.nix

@@ -1,19 +1,3 @@
-{ stdenv
+{ pkgs ? import <nixpkgs> {} }:
-, direnv
+(pkgs.writers.writeBashBin "direnv-cache" ./direnv-cache).overrideAttrs
-, term-test ? null
+  (o: { passthru = { direnvrc = ./direnvrc; }; })
-, doCheck ? true
-}:
-assert doCheck -> term-test != null;
-
-stdenv.mkDerivation {
-  name = "direnv-cache";
-  src = ./.;
-  propagatedBuildInputs = [ direnv ];
-  installPhase = ''
-    make install PREFIX=$out
-  '';
-  checkInputs = [ term-test ];
-  inherit doCheck;
-  passthru = { direnvrc = ./direnvrc; };
-  preferLocalBuild = true;
-}

direnv-cache

@@ -32,16 +32,13 @@ diffEnvs() {
 
     while IFS= read -r -d '' line; do
         name=$(tr -d '\0' <<<"$line" | head -n1 | cut -f1 -d'=')
-        if ! [[ "$name" = DIRENV_* ]]; then
         if ! getByName "$name" "$new" >/dev/null; then
             echo "export -n '${name}'"
         fi
-        fi
     done <"$old"
 
     while IFS= read -rd $'\0' line; do
         name=$(tr -d '\0' <<<"$line" | head -n1 | cut -f1 -d'=')
-        if ! [[ "$name" = DIRENV_* ]]; then
         if getByName "$name" "$old" >/dev/null; then
             # found in old env, check if values match
             if ! grep -z "^${line}\$" "$old" >/dev/null; then
@@ -52,7 +49,6 @@ diffEnvs() {
             # variable is new
             echo "export ${line@Q}"
         fi
-        fi
     done <"$new"
 }
 
@@ -70,23 +66,9 @@ getCacheFilePath() {
     echo "${cacheDir}/$(pwd | sha1sum | tr -d ' -')"
 }
 
-switchToDirenvDir() {
-    # Find directory that contains the current .envrc.  Allows direnv-cache to
-    # be called from subdirectories.
-    wd="$(pwd)"
-
-    if [[ -n $DIRENV_DIR ]]; then
-        wd="${DIRENV_DIR#-}"
-    fi
-
-    cd "$wd"
-}
-
 cmd="$1"
 
-switchToDirenvDir
+if ! [[ -e .envrc ]]; then
-
-if ! [[ -e ".envrc" ]]; then
     echo "Error, no .envrc found in current directory"
     exit 1
 fi
@@ -98,19 +80,19 @@ case $cmd in
         if [[ -n $DIRENV_DIR ]]; then
             # run self in clean environment (i.e. outside of the current direnv
             # environment)
-            echo "Switching to clean environment"
             exec direnv exec /proc "${BASH_SOURCE[0]}" "$@"
         fi
         echo "Re-creating cache"
         mkdir -p "$(dirname ${cacheFile})"
         dumpEnv > "${cacheFile}.pre"
         source <(direnv stdlib)
-        echo "Re-creating recipe"
+        if [[ .envrc -nt ${cacheFile}.recipe ]]; then
             direnv exec . true > /dev/null
+        fi
         source "${cacheFile}.recipe"
         dumpEnv > "${cacheFile}.post"
         diffEnvs "${cacheFile}.pre" "${cacheFile}.post" > "$cacheFile"
-        rm "${cacheFile}.pre" "${cacheFile}.post"
+#        rm "${cacheFile}.pre" "${cacheFile}.post"
         echo "Environment cached in $cacheFile, telling direnv to reload"
         direnv reload
         ;;
@@ -122,7 +104,6 @@ case $cmd in
         if [[ -e "$cacheFile" ]]; then
             rm "$cacheFile"
         fi
-        direnv reload
         ;;
     *)
         usage

direnvrc

@@ -14,3 +14,4 @@ cache() {
         echo "Environment not cached"
     fi
 }
+

shell.nix

@@ -1,2 +0,0 @@
-{ pkgs ? import <nixpkgs> {} }:
-pkgs.callPackage ./. {}

tests/test_direnv_stable_behavior

@@ -1,33 +0,0 @@
-# -*- mode: sh -*-
-
-function initDirenv {
-    # direnv needs a writable home:
-    run "export HOME=$(pwd)"
-    run 'eval "$(direnv hook bash)"'
-}
-
-function test_simpleEnvrcWorks {
-    initDirenv
-
-    writeFile .envrc <<EOF
-          export FOO=bar
-EOF
-    run "direnv allow"
-    assert "$(getEnv FOO)" == bar
-}
-
-function test_direnvExecRunsInCleanEnv {
-    initDirenv
-
-    run "export FOO=baz"
-
-    writeFile .envrc <<EOF
-          export FOO=bar
-EOF
-
-    run "direnv allow"
-    assert "$(getEnv FOO)" == bar
-    #captureShell 'echo $FOO'
-    #captureShell 'direnv exec /proc env | grep FOO'
-    assert "$(captureShell 'direnv exec /proc env | grep FOO')" == "FOO=baz"
-}