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Diffstat (limited to 'zsh/oh-my-zsh/tools/require_tool.sh')
| -rwxr-xr-x | zsh/oh-my-zsh/tools/require_tool.sh | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/zsh/oh-my-zsh/tools/require_tool.sh b/zsh/oh-my-zsh/tools/require_tool.sh deleted file mode 100755 index 1fa77f7..0000000 --- a/zsh/oh-my-zsh/tools/require_tool.sh +++ /dev/null @@ -1,161 +0,0 @@ -__require_tool_version_compare () -{ - ( - # Locally ignore failures, otherwise we'll exit whenever $1 and $2 - # are not equal! - set +e - -awk_strverscmp=' - # Use only awk features that work with 7th edition Unix awk (1978). - # My, what an old awk you have, Mr. Solaris! - END { - while (length(v1) || length(v2)) { - # Set d1 to be the next thing to compare from v1, and likewise for d2. - # Normally this is a single character, but if v1 and v2 contain digits, - # compare them as integers and fractions as strverscmp does. - if (v1 ~ /^[0-9]/ && v2 ~ /^[0-9]/) { - # Split v1 and v2 into their leading digit string components d1 and d2, - # and advance v1 and v2 past the leading digit strings. - for (len1 = 1; substr(v1, len1 + 1) ~ /^[0-9]/; len1++) continue - for (len2 = 1; substr(v2, len2 + 1) ~ /^[0-9]/; len2++) continue - d1 = substr(v1, 1, len1); v1 = substr(v1, len1 + 1) - d2 = substr(v2, 1, len2); v2 = substr(v2, len2 + 1) - if (d1 ~ /^0/) { - if (d2 ~ /^0/) { - # Compare two fractions. - while (d1 ~ /^0/ && d2 ~ /^0/) { - d1 = substr(d1, 2); len1-- - d2 = substr(d2, 2); len2-- - } - if (len1 != len2 && ! (len1 && len2 && substr(d1, 1, 1) == substr(d2, 1, 1))) { - # The two components differ in length, and the common prefix - # contains only leading zeros. Consider the longer to be less. - d1 = -len1 - d2 = -len2 - } else { - # Otherwise, compare as strings. - d1 = "x" d1 - d2 = "x" d2 - } - } else { - # A fraction is less than an integer. - exit 1 - } - } else { - if (d2 ~ /^0/) { - # An integer is greater than a fraction. - exit 2 - } else { - # Compare two integers. - d1 += 0 - d2 += 0 - } - } - } else { - # The normal case, without worrying about digits. - if (v1 == "") d1 = v1; else { d1 = substr(v1, 1, 1); v1 = substr(v1,2) } - if (v2 == "") d2 = v2; else { d2 = substr(v2, 1, 1); v2 = substr(v2,2) } - } - if (d1 < d2) exit 1 - if (d1 > d2) exit 2 - } - } -' - awk "$awk_strverscmp" v1="$1" v2="$2" /dev/null - case $? in - 1) echo '<';; - 0) echo '=';; - 2) echo '>';; - esac - ) -} - - -__require_tool_fatal () -{ - echo $@ >/dev/stderr - return 1 -} - -# Usage: require_tool program version -# Returns: 0 if $1 version if greater equals than $2, 1 otherwise. -# In case of error, message is written on error output. -# -# Example: require_tool gcc 4.6 -# Use GCC environment variable if defined instead of lookup for the tool -# in the environment. -require_tool () -{ - envvar_name=$(echo $1 | tr '[:lower:]' '[:upper:]') - tool=$(printenv $envvar_name || echo $1) - local version=$($tool --version 2>/dev/null| \ - sed -n 's/.*[^0-9.]\([0-9]*\.[0-9.]*\).*/\1/p;q') - if test x"$version" = x ; then - echo "$tool is required" >/dev/stderr - return 1 - fi - case $(__require_tool_version_compare "$2" "$version") in - '>') - echo "$1 $2 or better is required: this is $tool $version" >/dev/stderr - return 1 - ;; - esac -} - -usage() { - cat <<EOF -NAME - require_tool.sh - Ensure version of a tool is greater than the one expected - -SYNOPSYS - require_tool.sh [ -h ] - [ --help ] - [ TOOL MIN_VERSION ] - -DESCRIPTION - TOOL is the name or path of the program to check. If the name is specified, its - path is deduced from PATH environment variable. If environment variable TOOL - (in upper-case characters) is defined, considers its value as path to the tool. - - MIN_VERSION is a string representing the minimum required version. - -BEHAVIOR - * locate path to the program. - * execute $ TOOL_PATH --version - * extract version from standard output. - * compare this version to the expected one. - -OPTIONS - -h --help - Display this message and exit 0 - -ERRORS - if program is not found or its version is prior to expected version, - a message is written to error output. - -EXIT VALUE - returns 0 if program version if greater equals than expected version, - returns 1 otherwise. - -EXAMPLE - $ require_tool.sh emacs 23 - $ CC=g++ require_tool.sh cc 4.6 - $ require_tool.sh zsh 4.5 - -EOF -} - -for arg in $@; do - case $arg in - -h|--help) - usage - exit 0 - ;; - esac -done -if [ $# -gt 2 ] ; then - echo "ERROR: expecting 2 parameters. Please see option --help" - exit 1 -fi - -require_tool $@ |