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  1. #!/bin/sh
  2. #
  3. # Copyright © 2015-2021 the original authors.
  4. #
  5. # Licensed under the Apache License, Version 2.0 (the "License");
  6. # you may not use this file except in compliance with the License.
  7. # You may obtain a copy of the License at
  8. #
  9. # https://www.apache.org/licenses/LICENSE-2.0
  10. #
  11. # Unless required by applicable law or agreed to in writing, software
  12. # distributed under the License is distributed on an "AS IS" BASIS,
  13. # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14. # See the License for the specific language governing permissions and
  15. # limitations under the License.
  16. #
  17. ##############################################################################
  18. #
  19. # Gradle start up script for POSIX generated by Gradle.
  20. #
  21. # Important for running:
  22. #
  23. # (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
  24. # noncompliant, but you have some other compliant shell such as ksh or
  25. # bash, then to run this script, type that shell name before the whole
  26. # command line, like:
  27. #
  28. # ksh Gradle
  29. #
  30. # Busybox and similar reduced shells will NOT work, because this script
  31. # requires all of these POSIX shell features:
  32. # * functions;
  33. # * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
  34. # «${var#prefix}», «${var%suffix}», and «$( cmd )»;
  35. # * compound commands having a testable exit status, especially «case»;
  36. # * various built-in commands including «command», «set», and «ulimit».
  37. #
  38. # Important for patching:
  39. #
  40. # (2) This script targets any POSIX shell, so it avoids extensions provided
  41. # by Bash, Ksh, etc; in particular arrays are avoided.
  42. #
  43. # The "traditional" practice of packing multiple parameters into a
  44. # space-separated string is a well documented source of bugs and security
  45. # problems, so this is (mostly) avoided, by progressively accumulating
  46. # options in "$@", and eventually passing that to Java.
  47. #
  48. # Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
  49. # and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
  50. # see the in-line comments for details.
  51. #
  52. # There are tweaks for specific operating systems such as AIX, CygWin,
  53. # Darwin, MinGW, and NonStop.
  54. #
  55. # (3) This script is generated from the Groovy template
  56. # https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
  57. # within the Gradle project.
  58. #
  59. # You can find Gradle at https://github.com/gradle/gradle/.
  60. #
  61. ##############################################################################
  62. # Attempt to set APP_HOME
  63. # Resolve links: $0 may be a link
  64. app_path=$0
  65. # Need this for daisy-chained symlinks.
  66. while
  67. APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path
  68. [ -h "$app_path" ]
  69. do
  70. ls=$( ls -ld "$app_path" )
  71. link=${ls#*' -> '}
  72. case $link in #(
  73. /*) app_path=$link ;; #(
  74. *) app_path=$APP_HOME$link ;;
  75. esac
  76. done
  77. APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
  78. APP_NAME="Gradle"
  79. APP_BASE_NAME=${0##*/}
  80. # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
  81. DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
  82. # Use the maximum available, or set MAX_FD != -1 to use that value.
  83. MAX_FD=maximum
  84. warn () {
  85. echo "$*"
  86. } >&2
  87. die () {
  88. echo
  89. echo "$*"
  90. echo
  91. exit 1
  92. } >&2
  93. # OS specific support (must be 'true' or 'false').
  94. cygwin=false
  95. msys=false
  96. darwin=false
  97. nonstop=false
  98. case "$( uname )" in #(
  99. CYGWIN* ) cygwin=true ;; #(
  100. Darwin* ) darwin=true ;; #(
  101. MSYS* | MINGW* ) msys=true ;; #(
  102. NONSTOP* ) nonstop=true ;;
  103. esac
  104. CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
  105. # Determine the Java command to use to start the JVM.
  106. if [ -n "$JAVA_HOME" ] ; then
  107. if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
  108. # IBM's JDK on AIX uses strange locations for the executables
  109. JAVACMD=$JAVA_HOME/jre/sh/java
  110. else
  111. JAVACMD=$JAVA_HOME/bin/java
  112. fi
  113. if [ ! -x "$JAVACMD" ] ; then
  114. die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
  115. Please set the JAVA_HOME variable in your environment to match the
  116. location of your Java installation."
  117. fi
  118. else
  119. JAVACMD=java
  120. which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
  121. Please set the JAVA_HOME variable in your environment to match the
  122. location of your Java installation."
  123. fi
  124. # Increase the maximum file descriptors if we can.
  125. if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
  126. case $MAX_FD in #(
  127. max*)
  128. MAX_FD=$( ulimit -H -n ) ||
  129. warn "Could not query maximum file descriptor limit"
  130. esac
  131. case $MAX_FD in #(
  132. '' | soft) :;; #(
  133. *)
  134. ulimit -n "$MAX_FD" ||
  135. warn "Could not set maximum file descriptor limit to $MAX_FD"
  136. esac
  137. fi
  138. # Collect all arguments for the java command, stacking in reverse order:
  139. # * args from the command line
  140. # * the main class name
  141. # * -classpath
  142. # * -D...appname settings
  143. # * --module-path (only if needed)
  144. # * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
  145. # For Cygwin or MSYS, switch paths to Windows format before running java
  146. if "$cygwin" || "$msys" ; then
  147. APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
  148. CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
  149. JAVACMD=$( cygpath --unix "$JAVACMD" )
  150. # Now convert the arguments - kludge to limit ourselves to /bin/sh
  151. for arg do
  152. if
  153. case $arg in #(
  154. -*) false ;; # don't mess with options #(
  155. /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath
  156. [ -e "$t" ] ;; #(
  157. *) false ;;
  158. esac
  159. then
  160. arg=$( cygpath --path --ignore --mixed "$arg" )
  161. fi
  162. # Roll the args list around exactly as many times as the number of
  163. # args, so each arg winds up back in the position where it started, but
  164. # possibly modified.
  165. #
  166. # NB: a `for` loop captures its iteration list before it begins, so
  167. # changing the positional parameters here affects neither the number of
  168. # iterations, nor the values presented in `arg`.
  169. shift # remove old arg
  170. set -- "$@" "$arg" # push replacement arg
  171. done
  172. fi
  173. # Collect all arguments for the java command;
  174. # * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
  175. # shell script including quotes and variable substitutions, so put them in
  176. # double quotes to make sure that they get re-expanded; and
  177. # * put everything else in single quotes, so that it's not re-expanded.
  178. set -- \
  179. "-Dorg.gradle.appname=$APP_BASE_NAME" \
  180. -classpath "$CLASSPATH" \
  181. org.gradle.wrapper.GradleWrapperMain \
  182. "$@"
  183. # Use "xargs" to parse quoted args.
  184. #
  185. # With -n1 it outputs one arg per line, with the quotes and backslashes removed.
  186. #
  187. # In Bash we could simply go:
  188. #
  189. # readarray ARGS < <( xargs -n1 <<<"$var" ) &&
  190. # set -- "${ARGS[@]}" "$@"
  191. #
  192. # but POSIX shell has neither arrays nor command substitution, so instead we
  193. # post-process each arg (as a line of input to sed) to backslash-escape any
  194. # character that might be a shell metacharacter, then use eval to reverse
  195. # that process (while maintaining the separation between arguments), and wrap
  196. # the whole thing up as a single "set" statement.
  197. #
  198. # This will of course break if any of these variables contains a newline or
  199. # an unmatched quote.
  200. #
  201. eval "set -- $(
  202. printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
  203. xargs -n1 |
  204. sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
  205. tr '\n' ' '
  206. )" '"$@"'
  207. exec "$JAVACMD" "$@"