xref: /aosp_15_r20/external/accompanist/gradlew (revision fa44fe6ae8e729aa3cfe5c03eedbbf98fb44e2c6) 
1#!/bin/sh
2
3#
4# Copyright © 2015-2021 the original authors.
5#
6# Licensed under the Apache License, Version 2.0 (the "License");
7# you may not use this file except in compliance with the License.
8# You may obtain a copy of the License at
9#
10#      https://www.apache.org/licenses/LICENSE-2.0
11#
12# Unless required by applicable law or agreed to in writing, software
13# distributed under the License is distributed on an "AS IS" BASIS,
14# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15# See the License for the specific language governing permissions and
16# limitations under the License.
17#
18
19##############################################################################
20#
21#   Gradle start up script for POSIX generated by Gradle.
22#
23#   Important for running:
24#
25#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
26#       noncompliant, but you have some other compliant shell such as ksh or
27#       bash, then to run this script, type that shell name before the whole
28#       command line, like:
29#
30#           ksh Gradle
31#
32#       Busybox and similar reduced shells will NOT work, because this script
33#       requires all of these POSIX shell features:
34#         * functions;
35#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
36#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
37#         * compound commands having a testable exit status, especially «case»;
38#         * various built-in commands including «command», «set», and «ulimit».
39#
40#   Important for patching:
41#
42#   (2) This script targets any POSIX shell, so it avoids extensions provided
43#       by Bash, Ksh, etc; in particular arrays are avoided.
44#
45#       The "traditional" practice of packing multiple parameters into a
46#       space-separated string is a well documented source of bugs and security
47#       problems, so this is (mostly) avoided, by progressively accumulating
48#       options in "$@", and eventually passing that to Java.
49#
50#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
51#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
52#       see the in-line comments for details.
53#
54#       There are tweaks for specific operating systems such as AIX, CygWin,
55#       Darwin, MinGW, and NonStop.
56#
57#   (3) This script is generated from the Groovy template
58#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
59#       within the Gradle project.
60#
61#       You can find Gradle at https://github.com/gradle/gradle/.
62#
63##############################################################################
64
65# Attempt to set APP_HOME
66
67# Resolve links: $0 may be a link
68app_path=$0
69
70# Need this for daisy-chained symlinks.
71while
72    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
73    [ -h "$app_path" ]
74do
75    ls=$( ls -ld "$app_path" )
76    link=${ls#*' -> '}
77    case $link in             #(
78      /*)   app_path=$link ;; #(
79      *)    app_path=$APP_HOME$link ;;
80    esac
81done
82
83# This is normally unused
84# shellcheck disable=SC2034
85APP_BASE_NAME=${0##*/}
86APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
87
88# Use the maximum available, or set MAX_FD != -1 to use that value.
89MAX_FD=maximum
90
91warn () {
92    echo "$*"
93} >&2
94
95die () {
96    echo
97    echo "$*"
98    echo
99    exit 1
100} >&2
101
102# OS specific support (must be 'true' or 'false').
103cygwin=false
104msys=false
105darwin=false
106nonstop=false
107case "$( uname )" in                #(
108  CYGWIN* )         cygwin=true  ;; #(
109  Darwin* )         darwin=true  ;; #(
110  MSYS* | MINGW* )  msys=true    ;; #(
111  NONSTOP* )        nonstop=true ;;
112esac
113
114CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
115
116
117# Determine the Java command to use to start the JVM.
118if [ -n "$JAVA_HOME" ] ; then
119    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
120        # IBM's JDK on AIX uses strange locations for the executables
121        JAVACMD=$JAVA_HOME/jre/sh/java
122    else
123        JAVACMD=$JAVA_HOME/bin/java
124    fi
125    if [ ! -x "$JAVACMD" ] ; then
126        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
127
128Please set the JAVA_HOME variable in your environment to match the
129location of your Java installation."
130    fi
131else
132    JAVACMD=java
133    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
134
135Please set the JAVA_HOME variable in your environment to match the
136location of your Java installation."
137fi
138
139# Increase the maximum file descriptors if we can.
140if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
141    case $MAX_FD in #(
142      max*)
143        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
144        # shellcheck disable=SC3045
145        MAX_FD=$( ulimit -H -n ) ||
146            warn "Could not query maximum file descriptor limit"
147    esac
148    case $MAX_FD in  #(
149      '' | soft) :;; #(
150      *)
151        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
152        # shellcheck disable=SC3045
153        ulimit -n "$MAX_FD" ||
154            warn "Could not set maximum file descriptor limit to $MAX_FD"
155    esac
156fi
157
158# Collect all arguments for the java command, stacking in reverse order:
159#   * args from the command line
160#   * the main class name
161#   * -classpath
162#   * -D...appname settings
163#   * --module-path (only if needed)
164#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
165
166# For Cygwin or MSYS, switch paths to Windows format before running java
167if "$cygwin" || "$msys" ; then
168    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
169    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
170
171    JAVACMD=$( cygpath --unix "$JAVACMD" )
172
173    # Now convert the arguments - kludge to limit ourselves to /bin/sh
174    for arg do
175        if
176            case $arg in                                #(
177              -*)   false ;;                            # don't mess with options #(
178              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
179                    [ -e "$t" ] ;;                      #(
180              *)    false ;;
181            esac
182        then
183            arg=$( cygpath --path --ignore --mixed "$arg" )
184        fi
185        # Roll the args list around exactly as many times as the number of
186        # args, so each arg winds up back in the position where it started, but
187        # possibly modified.
188        #
189        # NB: a `for` loop captures its iteration list before it begins, so
190        # changing the positional parameters here affects neither the number of
191        # iterations, nor the values presented in `arg`.
192        shift                   # remove old arg
193        set -- "$@" "$arg"      # push replacement arg
194    done
195fi
196
197
198# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
199DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
200
201# Collect all arguments for the java command;
202#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
203#     shell script including quotes and variable substitutions, so put them in
204#     double quotes to make sure that they get re-expanded; and
205#   * put everything else in single quotes, so that it's not re-expanded.
206
207set -- \
208        "-Dorg.gradle.appname=$APP_BASE_NAME" \
209        -classpath "$CLASSPATH" \
210        org.gradle.wrapper.GradleWrapperMain \
211        "$@"
212
213# Stop when "xargs" is not available.
214if ! command -v xargs >/dev/null 2>&1
215then
216    die "xargs is not available"
217fi
218
219# Use "xargs" to parse quoted args.
220#
221# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
222#
223# In Bash we could simply go:
224#
225#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
226#   set -- "${ARGS[@]}" "$@"
227#
228# but POSIX shell has neither arrays nor command substitution, so instead we
229# post-process each arg (as a line of input to sed) to backslash-escape any
230# character that might be a shell metacharacter, then use eval to reverse
231# that process (while maintaining the separation between arguments), and wrap
232# the whole thing up as a single "set" statement.
233#
234# This will of course break if any of these variables contains a newline or
235# an unmatched quote.
236#
237
238eval "set -- $(
239        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
240        xargs -n1 |
241        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
242        tr '\n' ' '
243    )" '"$@"'
244
245exec "$JAVACMD" "$@"
246