mirror of
https://github.com/YunoHost/yunohost.git
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139 lines
4.8 KiB
Bash
139 lines
4.8 KiB
Bash
#!/bin/bash
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# Generate a random string
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#
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# usage: ynh_string_random [--length=string_length]
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# | arg: -l, --length= - the string length to generate (default: 24)
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# | arg: -f, --filter= - the kind of characters accepted in the output (default: 'A-Za-z0-9')
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# | ret: the generated string
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#
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# example: pwd=$(ynh_string_random --length=8)
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#
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# Requires YunoHost version 2.2.4 or higher.
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ynh_string_random() {
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# ============ Argument parsing =============
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local -A args_array=([l]=length= [f]=filter=)
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local length
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local filter
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ynh_handle_getopts_args "$@"
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length=${length:-24}
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filter=${filter:-'A-Za-z0-9'}
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# ===========================================
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dd if=/dev/urandom bs=1 count=1000 2>/dev/null \
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| tr --complement --delete "$filter" \
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| sed --quiet 's/\(.\{'"$length"'\}\).*/\1/p'
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}
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# Substitute/replace a string (or expression) by another in a file
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#
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# usage: ynh_replace --match=match --replace=replace --file=file
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# | arg: -m, --match= - String to be searched and replaced in the file
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# | arg: -r, --replace= - String that will replace matches
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# | arg: -f, --file= - File in which the string will be replaced.
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#
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# As this helper is based on sed command, regular expressions and references to
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# sub-expressions can be used (see sed manual page for more information)
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#
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# Requires YunoHost version 2.6.4 or higher.
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ynh_replace() {
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# ============ Argument parsing =============
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local -A args_array=([m]=match= [r]=replace= [f]=file=)
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local match
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local replace
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local file
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ynh_handle_getopts_args "$@"
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# ===========================================
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set +o xtrace # set +x
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local delimit=$'\001'
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# Escape the delimiter if it's in the string.
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match=${match//${delimit}/"\\${delimit}"}
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replace=${replace//${delimit}/"\\${delimit}"}
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set -o xtrace # set -x
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sed --in-place "s${delimit}${match}${delimit}${replace}${delimit}g" "$file"
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}
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# Substitute/replace a special string by another in a file
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#
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# usage: ynh_replace_special_string --match=match --replace=replace --file=file
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# | arg: -m, --match= - String to be searched and replaced in the file
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# | arg: -r, --replace= - String that will replace matches
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# | arg: -f, --file= - File in which the string will be replaced.
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#
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# This helper will use ynh_replace, but as you can use special
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# characters, you can't use some regular expressions and sub-expressions.
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#
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# Requires YunoHost version 2.7.7 or higher.
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ynh_replace_special_string() {
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# ============ Argument parsing =============
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local -A args_array=([m]=match= [r]=replace= [f]=file=)
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local match
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local replace
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local file
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ynh_handle_getopts_args "$@"
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# ===========================================
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# Escape any backslash to preserve them as simple backslash.
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match=${match//\\/"\\\\"}
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replace=${replace//\\/"\\\\"}
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# Escape the & character, who has a special function in sed.
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match=${match//&/"\&"}
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replace=${replace//&/"\&"}
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ynh_replace --match="$match" --replace="$replace" --file="$file"
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}
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# Sanitize a string intended to be the name of a database
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#
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# [packagingv1]
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#
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# usage: ynh_sanitize_dbid --db_name=name
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# | arg: -n, --db_name= - name to correct/sanitize
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# | ret: the corrected name
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#
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# example: dbname=$(ynh_sanitize_dbid $app)
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#
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# Underscorify the string (replace - and . by _)
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#
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# Requires YunoHost version 2.2.4 or higher.
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ynh_sanitize_dbid() {
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# ============ Argument parsing =============
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local -A args_array=([n]=db_name=)
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local db_name
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ynh_handle_getopts_args "$@"
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# ===========================================
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# We should avoid having - and . in the name of databases. They are replaced by _
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echo ${db_name//[-.]/_}
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}
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# Normalize the url path syntax
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#
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# Handle the slash at the beginning of path and its absence at ending
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# Return a normalized url path
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#
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# examples:
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# url_path=$(ynh_normalize_url_path $url_path)
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# ynh_normalize_url_path example # -> /example
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# ynh_normalize_url_path /example # -> /example
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# ynh_normalize_url_path /example/ # -> /example
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# ynh_normalize_url_path / # -> /
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#
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# usage: ynh_normalize_url_path path_to_normalize
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#
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# Requires YunoHost version 2.6.4 or higher.
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ynh_normalize_url_path() {
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local path_url=$1
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test -n "$path_url" || ynh_die "ynh_normalize_url_path expect a URL path as first argument and received nothing."
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if [ "${path_url:0:1}" != "/" ]; then # If the first character is not a /
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path_url="/$path_url" # Add / at begin of path variable
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fi
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if [ "${path_url:${#path_url}-1}" == "/" ] && [ ${#path_url} -gt 1 ]; then # If the last character is a / and that not the only character.
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path_url="${path_url:0:${#path_url}-1}" # Delete the last character
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fi
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echo $path_url
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}
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