bin/lein

   1 #!/usr/bin/env bash
   2
   3 # Ensure this file is executable via `chmod a+x lein`, then place it
   4 # somewhere on your $PATH, like ~/bin. The rest of Leiningen will be
   5 # installed upon first run into the ~/.lein/self-installs directory.
   6
   7 export LEIN_VERSION="2.7.1"
   8
   9 case $LEIN_VERSION in
  10     *SNAPSHOT) SNAPSHOT="YES" ;;
  11     *) SNAPSHOT="NO" ;;
  12 esac
  13
  14 if [[ "$OSTYPE" == "cygwin" ]] || [[ "$OSTYPE" == "msys" ]]; then
  15     delimiter=";"
  16 else
  17     delimiter=":"
  18 fi
  19
  20 if [[ "$OSTYPE" == "cygwin" ]]; then
  21   cygwin=true
  22 else
  23   cygwin=false
  24 fi
  25
  26 function command_not_found {
  27     >&2 echo "Leiningen coundn't find $1 in your \$PATH ($PATH), which is required."
  28     exit 1
  29 }
  30
  31 function make_native_path {
  32     # ensure we have native paths
  33     if $cygwin && [[ "$1"  == /* ]]; then
  34     echo -n "$(cygpath -wp "$1")"
  35     elif [[ "$OSTYPE" == "msys" && "$1"  == /?/* ]]; then
  36     echo -n "$(sh -c "(cd $1 2</dev/null && pwd -W) || echo $1 | sed 's/^\\/\([a-z]\)/\\1:/g'")"
  37     else
  38     echo -n "$1"
  39     fi
  40 }
  41
  42 #  usage : add_path PATH_VAR [PATH]...
  43 function add_path {
  44     local path_var="$1"
  45     shift
  46     while [ -n "$1" ];do
  47         # http://bashify.com/?Useful_Techniques:Indirect_Variables:Indirect_Assignment
  48         if [[ -z ${!path_var} ]]; then
  49           export ${path_var}="$(make_native_path "$1")"
  50         else
  51           export ${path_var}="${!path_var}${delimiter}$(make_native_path "$1")"
  52         fi
  53     shift
  54     done
  55 }
  56
  57 function download_failed_message {
  58     echo "Failed to download $1 (exit code $2)"
  59     echo "It's possible your HTTP client's certificate store does not have the"
  60     echo "correct certificate authority needed. This is often caused by an"
  61     echo "out-of-date version of libssl. It's also possible that you're behind a"
  62     echo "firewall and haven't set HTTP_PROXY and HTTPS_PROXY."
  63 }
  64
  65 function self_install {
  66   if [ -r "$LEIN_JAR" ]; then
  67     echo "The self-install jar already exists at $LEIN_JAR."
  68     echo "If you wish to re-download, delete it and rerun \"$0 self-install\"."
  69     exit 1
  70   fi
  71   echo "Downloading Leiningen to $LEIN_JAR now..."
  72   mkdir -p "$(dirname "$LEIN_JAR")"
  73   LEIN_URL="https://github.com/technomancy/leiningen/releases/download/$LEIN_VERSION/leiningen-$LEIN_VERSION-standalone.zip"
  74   $HTTP_CLIENT "$LEIN_JAR.pending" "$LEIN_URL"
  75   local exit_code=$?
  76   if [ $exit_code == 0 ]; then
  77       # TODO: checksum
  78       mv -f "$LEIN_JAR.pending" "$LEIN_JAR"
  79   else
  80       rm "$LEIN_JAR.pending" 2> /dev/null
  81       download_failed_message "$LEIN_URL" "$exit_code"
  82       exit 1
  83   fi
  84 }
  85
  86 function check_root {
  87   local -i user_id
  88   # Thank you for the complexity, Solaris
  89   if [ `uname` = "SunOS" -a -x /usr/xpg4/bin/id ]; then
  90     user_id=$(/usr/xpg4/bin/id -u 2>/dev/null || echo 0)
  91   else
  92     user_id=$(id -u 2>/dev/null || echo 0)
  93   fi
  94   [ $user_id -eq 0 -a "$LEIN_ROOT" = "" ] && return 0
  95   return 1
  96 }
  97
  98 if check_root; then
  99     echo "WARNING: You're currently running as root; probably by accident."
 100     echo "Press control-C to abort or Enter to continue as root."
 101     echo "Set LEIN_ROOT to disable this warning."
 102     read _
 103 fi
 104
 105 NOT_FOUND=1
 106 ORIGINAL_PWD="$PWD"
 107 while [ ! -r "$PWD/project.clj" ] && [ "$PWD" != "/" ] && [ $NOT_FOUND -ne 0 ]
 108 do
 109     cd ..
 110     if [ "$(dirname "$PWD")" = "/" ]; then
 111         NOT_FOUND=0
 112         cd "$ORIGINAL_PWD"
 113     fi
 114 done
 115
 116 export LEIN_HOME="${LEIN_HOME:-"$HOME/.lein"}"
 117
 118 for f in "/etc/leinrc" "$LEIN_HOME/leinrc" ".leinrc"; do
 119   if [ -e "$f" ]; then
 120     source "$f"
 121   fi
 122 done
 123
 124 if $cygwin; then
 125     export LEIN_HOME=$(cygpath -w "$LEIN_HOME")
 126 fi
 127
 128 LEIN_JAR="$LEIN_HOME/self-installs/leiningen-$LEIN_VERSION-standalone.jar"
 129
 130 # normalize $0 on certain BSDs
 131 if [ "$(dirname "$0")" = "." ]; then
 132     SCRIPT="$(which "$(basename "$0")")"
 133     if [ -z "$SCRIPT" ]; then
 134         SCRIPT="$0"
 135     fi
 136 else
 137     SCRIPT="$0"
 138 fi
 139
 140 # resolve symlinks to the script itself portably
 141 while [ -h "$SCRIPT" ] ; do
 142     ls=$(ls -ld "$SCRIPT")
 143     link=$(expr "$ls" : '.*-> \(.*\)$')
 144     if expr "$link" : '/.*' > /dev/null; then
 145         SCRIPT="$link"
 146     else
 147         SCRIPT="$(dirname "$SCRIPT"$)/$link"
 148     fi
 149 done
 150
 151 BIN_DIR="$(dirname "$SCRIPT")"
 152
 153 export LEIN_JVM_OPTS="${LEIN_JVM_OPTS-"-XX:+TieredCompilation -XX:TieredStopAtLevel=1"}"
 154
 155 # This needs to be defined before we call HTTP_CLIENT below
 156 if [ "$HTTP_CLIENT" = "" ]; then
 157     if type -p curl >/dev/null 2>&1; then
 158         if [ "$https_proxy" != "" ]; then
 159             CURL_PROXY="-x $https_proxy"
 160         fi
 161         HTTP_CLIENT="curl $CURL_PROXY -f -L -o"
 162     else
 163         HTTP_CLIENT="wget -O"
 164     fi
 165 fi
 166
 167
 168 # When :eval-in :classloader we need more memory
 169 grep -E -q '^\s*:eval-in\s+:classloader\s*$' project.clj 2> /dev/null && \
 170     export LEIN_JVM_OPTS="$LEIN_JVM_OPTS -Xms64m -Xmx512m"
 171
 172 if [ -r "$BIN_DIR/../src/leiningen/version.clj" ]; then
 173     # Running from source checkout
 174     LEIN_DIR="$(dirname "$BIN_DIR")"
 175
 176     # Need to use lein release to bootstrap the leiningen-core library (for aether)
 177     if [ ! -r "$LEIN_DIR/leiningen-core/.lein-bootstrap" ]; then
 178         echo "Leiningen is missing its dependencies."
 179         echo "Please run \"lein bootstrap\" in the leiningen-core/ directory"
 180         echo "with a stable release of Leiningen. See CONTRIBUTING.md for details."
 181         exit 1
 182     fi
 183
 184     # If project.clj for lein or leiningen-core changes, we must recalculate
 185     LAST_PROJECT_CHECKSUM=$(cat "$LEIN_DIR/.lein-project-checksum" 2> /dev/null)
 186     PROJECT_CHECKSUM=$(sum "$LEIN_DIR/project.clj" "$LEIN_DIR/leiningen-core/project.clj")
 187     if [ "$PROJECT_CHECKSUM" != "$LAST_PROJECT_CHECKSUM" ]; then
 188         if [ -r "$LEIN_DIR/.lein-classpath" ]; then
 189             rm "$LEIN_DIR/.lein-classpath"
 190         fi
 191     fi
 192
 193     # Use bin/lein to calculate its own classpath.
 194     if [ ! -r "$LEIN_DIR/.lein-classpath" ] && [ "$1" != "classpath" ]; then
 195         echo "Recalculating Leiningen's classpath."
 196         ORIG_PWD="$PWD"
 197         cd "$LEIN_DIR"
 198
 199         LEIN_NO_USER_PROFILES=1 $0 classpath .lein-classpath
 200         sum "$LEIN_DIR/project.clj" "$LEIN_DIR/leiningen-core/project.clj" > \
 201             .lein-project-checksum
 202         cd "$ORIG_PWD"
 203     fi
 204
 205     mkdir -p "$LEIN_DIR/target/classes"
 206     export LEIN_JVM_OPTS="$LEIN_JVM_OPTS -Dclojure.compile.path=$LEIN_DIR/target/classes"
 207     add_path CLASSPATH "$LEIN_DIR/leiningen-core/src/" "$LEIN_DIR/leiningen-core/resources/" \
 208         "$LEIN_DIR/test:$LEIN_DIR/target/classes" "$LEIN_DIR/src" ":$LEIN_DIR/resources"
 209
 210     if [ -r "$LEIN_DIR/.lein-classpath" ]; then
 211         add_path CLASSPATH "$(cat "$LEIN_DIR/.lein-classpath" 2> /dev/null)"
 212     else
 213         add_path CLASSPATH "$(cat "$LEIN_DIR/leiningen-core/.lein-bootstrap" 2> /dev/null)"
 214     fi
 215 else # Not running from a checkout
 216     add_path CLASSPATH "$LEIN_JAR"
 217
 218     BOOTCLASSPATH="-Xbootclasspath/a:$LEIN_JAR"
 219
 220     if [ ! -r "$LEIN_JAR" -a "$1" != "self-install" ]; then
 221         self_install
 222     fi
 223 fi
 224
 225 if [ ! -x "$JAVA_CMD" ] && ! type -f java >/dev/null
 226 then
 227     >&2 echo "Leiningen coundn't find 'java' executable, which is required."
 228     >&2 echo "Please either set JAVA_CMD or put java (>=1.6) in your \$PATH ($PATH)."
 229     exit 1
 230 fi
 231
 232 export LEIN_JAVA_CMD="${LEIN_JAVA_CMD:-${JAVA_CMD:-java}}"
 233
 234 if [[ -z "${DRIP_INIT+x}" && "$(basename "$LEIN_JAVA_CMD")" == *drip* ]]; then
 235     export DRIP_INIT="$(printf -- '-e\n(require (quote leiningen.repl))')"
 236     export DRIP_INIT_CLASS="clojure.main"
 237 fi
 238
 239 # Support $JAVA_OPTS for backwards-compatibility.
 240 export JVM_OPTS="${JVM_OPTS:-"$JAVA_OPTS"}"
 241
 242 # Handle jline issue with cygwin not propagating OSTYPE through java subprocesses: https://github.com/jline/jline2/issues/62
 243 cygterm=false
 244 if $cygwin; then
 245   case "$TERM" in
 246     rxvt* | xterm* | vt*) cygterm=true ;;
 247   esac
 248 fi
 249
 250 if $cygterm; then
 251   LEIN_JVM_OPTS="$LEIN_JVM_OPTS -Djline.terminal=jline.UnixTerminal"
 252   stty -icanon min 1 -echo > /dev/null 2>&1
 253 fi
 254
 255 # TODO: investigate http://skife.org/java/unix/2011/06/20/really_executable_jars.html
 256 # If you're packaging this for a package manager (.deb, homebrew, etc)
 257 # you need to remove the self-install and upgrade functionality or see lein-pkg.
 258 if [ "$1" = "self-install" ]; then
 259     if [ -r "$BIN_DIR/../src/leiningen/version.clj" ]; then
 260         echo "Running self-install from a checkout is not supported."
 261         echo "See CONTRIBUTING.md for SNAPSHOT-specific build instructions."
 262         exit 1
 263     fi
 264     echo "Manual self-install is deprecated; it will run automatically when necessary."
 265     self_install
 266 elif [ "$1" = "upgrade" ] || [ "$1" = "downgrade" ]; then
 267     if [ "$LEIN_DIR" != "" ]; then
 268         echo "The upgrade task is not meant to be run from a checkout."
 269         exit 1
 270     fi
 271     if [ $SNAPSHOT = "YES" ]; then
 272         echo "The upgrade task is only meant for stable releases."
 273         echo "See the \"Bootstrapping\" section of CONTRIBUTING.md."
 274         exit 1
 275     fi
 276     if [ ! -w "$SCRIPT" ]; then
 277         echo "You do not have permission to upgrade the installation in $SCRIPT"
 278         exit 1
 279     else
 280         TARGET_VERSION="${2:-stable}"
 281         echo "The script at $SCRIPT will be upgraded to the latest $TARGET_VERSION version."
 282         echo -n "Do you want to continue [Y/n]? "
 283         read RESP
 284         case "$RESP" in
 285             y|Y|"")
 286                 echo
 287                 echo "Upgrading..."
 288                 TARGET="/tmp/lein-$$-upgrade"
 289                 if $cygwin; then
 290                     TARGET=$(cygpath -w "$TARGET")
 291                 fi
 292                 LEIN_SCRIPT_URL="https://github.com/technomancy/leiningen/raw/$TARGET_VERSION/bin/lein"
 293                 $HTTP_CLIENT "$TARGET" "$LEIN_SCRIPT_URL"
 294                 if [ $? == 0 ]; then
 295                     cmp -s "$TARGET" "$SCRIPT"
 296                     if [ $? == 0 ]; then
 297                         echo "Leiningen is already up-to-date."
 298                     fi
 299                     mv "$TARGET" "$SCRIPT" && chmod +x "$SCRIPT"
 300                     exec "$SCRIPT" version
 301                 else
 302                     download_failed_message "$LEIN_SCRIPT_URL"
 303                 fi;;
 304             *)
 305                 echo "Aborted."
 306                 exit 1;;
 307         esac
 308     fi
 309 else
 310     if $cygwin; then
 311         # When running on Cygwin, use Windows-style paths for java
 312         ORIGINAL_PWD=$(cygpath -w "$ORIGINAL_PWD")
 313     fi
 314
 315     # apply context specific CLASSPATH entries
 316     if [ -f .lein-classpath ]; then
 317         add_path CLASSPATH "$(cat .lein-classpath)"
 318     fi
 319
 320     if [ -n "$DEBUG" ]; then
 321         echo "Leiningen's classpath: $CLASSPATH"
 322     fi
 323
 324     if [ -r .lein-fast-trampoline ]; then
 325         export LEIN_FAST_TRAMPOLINE='y'
 326     fi
 327
 328     if [ "$LEIN_FAST_TRAMPOLINE" != "" ] && [ -r project.clj ]; then
 329         INPUTS="$* $(cat project.clj) $LEIN_VERSION $(test -f "$LEIN_HOME/profiles.clj" && cat "$LEIN_HOME/profiles.clj")"
 330
 331         if command -v shasum >/dev/null 2>&1; then
 332             SUM="shasum"
 333         elif command -v sha1sum >/dev/null 2>&1; then
 334             SUM="sha1sum"
 335         else
 336             command_not_found "sha1sum or shasum"
 337         fi
 338
 339         export INPUT_CHECKSUM=$(echo "$INPUTS" | $SUM | cut -f 1 -d " ")
 340         # Just don't change :target-path in project.clj, mkay?
 341         TRAMPOLINE_FILE="target/trampolines/$INPUT_CHECKSUM"
 342     else
 343         if hash mktemp 2>/dev/null; then
 344             # Check if mktemp is available before using it
 345             TRAMPOLINE_FILE="$(mktemp /tmp/lein-trampoline-XXXXXXXXXXXXX)"
 346         else
 347             TRAMPOLINE_FILE="/tmp/lein-trampoline-$$"
 348         fi
 349         trap "rm -f $TRAMPOLINE_FILE" EXIT
 350     fi
 351
 352     if $cygwin; then
 353         TRAMPOLINE_FILE=$(cygpath -w "$TRAMPOLINE_FILE")
 354     fi
 355
 356     if [ "$INPUT_CHECKSUM" != "" ] && [ -r "$TRAMPOLINE_FILE" ]; then
 357         if [ -n "$DEBUG" ]; then
 358             echo "Fast trampoline with $TRAMPOLINE_FILE."
 359         fi
 360         exec sh -c "exec $(cat "$TRAMPOLINE_FILE")"
 361     else
 362         export TRAMPOLINE_FILE
 363         "$LEIN_JAVA_CMD" \
 364             "${BOOTCLASSPATH[@]}" \
 365             -Dfile.encoding=UTF-8 \
 366             -Dmaven.wagon.http.ssl.easy=false \
 367             -Dmaven.wagon.rto=10000 \
 368             $LEIN_JVM_OPTS \
 369             -Dleiningen.original.pwd="$ORIGINAL_PWD" \
 370             -Dleiningen.script="$SCRIPT" \
 371             -classpath "$CLASSPATH" \
 372             clojure.main -m leiningen.core.main "$@"
 373
 374         EXIT_CODE=$?
 375
 376         if $cygterm ; then
 377           stty icanon echo > /dev/null 2>&1
 378         fi
 379
 380         ## TODO: [ -r "$TRAMPOLINE_FILE" ] may be redundant? A trampoline file
 381         ## is always generated these days.
 382         if [ -r "$TRAMPOLINE_FILE" ] && [ "$LEIN_TRAMPOLINE_WARMUP" = "" ]; then
 383             TRAMPOLINE="$(cat "$TRAMPOLINE_FILE")"
 384             if [ "$INPUT_CHECKSUM" = "" ]; then
 385                 rm "$TRAMPOLINE_FILE"
 386             fi
 387             if [ "$TRAMPOLINE" = "" ]; then
 388                 exit $EXIT_CODE
 389             else
 390                 exec sh -c "exec $TRAMPOLINE"
 391             fi
 392         else
 393             exit $EXIT_CODE
 394         fi
 395     fi
 396 fi