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only run bootsrap jobs on compiler changes
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,168 @@ | ||
| #!/usr/bin/env bash | ||
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| # Disable globbing in this bash script since we iterate over path patterns | ||
| set -f | ||
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| # Stop script if unbound variable found (use ${var:-} if intentional) | ||
| set -u | ||
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| # Stop script if command returns non-zero exit code. | ||
| # Prevents hidden errors caused by missing error code propagation. | ||
| set -e | ||
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| usage() | ||
| { | ||
| echo "Script that evaluates changed paths and emits an azure devops variable if the changes contained in the current HEAD against the difftarget meet the includepahts/excludepaths filters:" | ||
| echo " --difftarget <value> SHA or branch to diff against. (i.e: HEAD^1, origin/main, 0f4hd36, etc.)" | ||
| echo " --excludepaths <value> Escaped list of paths to exclude from diff separated by '+'. (i.e: 'src/libraries/*+'src/installer/*')" | ||
| echo " --includepaths <value> Escaped list of paths to include on diff separated by '+'. (i.e: 'src/libraries/System.Private.CoreLib/*')" | ||
| echo " --subset Subset name for which we're evaluating in order to include it in logs" | ||
| echo " --azurevariable Name of azure devops variable to create if change meets filter criteria" | ||
| echo "" | ||
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| echo "Arguments can also be passed in with a single hyphen." | ||
| } | ||
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| source="${BASH_SOURCE[0]}" | ||
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| # resolve $source until the file is no longer a symlink | ||
| while [[ -h "$source" ]]; do | ||
| scriptroot="$( cd -P "$( dirname "$source" )" && pwd )" | ||
| source="$(readlink "$source")" | ||
| # if $source was a relative symlink, we need to resolve it relative to the path where the | ||
| # symlink file was located | ||
| [[ $source != /* ]] && source="$scriptroot/$source" | ||
| done | ||
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| scriptroot="$( cd -P "$( dirname "$source" )" && pwd )" | ||
| eng_root=`cd -P "$scriptroot" && pwd` | ||
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| exclude_paths=() | ||
| include_paths=() | ||
| subset_name='' | ||
| azure_variable='' | ||
| diff_target='' | ||
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| while [[ $# > 0 ]]; do | ||
| opt="$(echo "${1/#--/-}" | tr "[:upper:]" "[:lower:]")" | ||
| case "$opt" in | ||
| -help|-h) | ||
| usage | ||
| exit 0 | ||
| ;; | ||
| -difftarget) | ||
| diff_target=$2 | ||
| shift | ||
| ;; | ||
| -excludepaths) | ||
| IFS='+' read -r -a tmp <<< $2 | ||
| exclude_paths+=(${tmp[@]}) | ||
| shift | ||
| ;; | ||
| -includepaths) | ||
| IFS='+' read -r -a tmp <<< $2 | ||
| include_paths+=(${tmp[@]}) | ||
| shift | ||
| ;; | ||
| -subset) | ||
| subset_name=$2 | ||
| shift | ||
| ;; | ||
| -azurevariable) | ||
| azure_variable=$2 | ||
| shift | ||
| ;; | ||
| esac | ||
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| shift | ||
| done | ||
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| ci=true # Needed in order to use pipeline-logging-functions.sh | ||
| . "$eng_root/common/pipeline-logging-functions.sh" | ||
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| # -- expected args -- | ||
| # $@: git diff arguments | ||
| customGitDiff() { | ||
| ( | ||
| set -x | ||
| git diff -M -C -b --ignore-cr-at-eol --ignore-space-at-eol "$@" | ||
| ) | ||
| } | ||
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| # runs git diff with supplied filter. | ||
| # -- exit codes -- | ||
| # 0: No match was found | ||
| # 1: At least 1 match was found | ||
| # | ||
| # -- expected args -- | ||
| # $@: filter string | ||
| probePathsWithExitCode() { | ||
| local _filter=$@ | ||
| echo "" | ||
| customGitDiff --exit-code --quiet $diff_target -- $_filter | ||
| } | ||
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| # -- expected args -- | ||
| # $@: filter string | ||
| printMatchedPaths() { | ||
| local _subset=$subset_name | ||
| local _filter=$@ | ||
| echo "" | ||
| echo "----- Matching files for $_subset -----" | ||
| customGitDiff --name-only $diff_target -- $_filter | ||
| } | ||
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| probePaths() { | ||
| local _subset=$subset_name | ||
| local _azure_devops_var_name=$azure_variable | ||
| local exclude_path_string="" | ||
| local include_path_string="" | ||
| local found_applying_changes=false | ||
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| if [[ ${#exclude_paths[@]} -gt 0 ]]; then | ||
| echo "" | ||
| echo "******* Probing $_subset exclude paths *******"; | ||
| for _path in "${exclude_paths[@]}"; do | ||
| echo "$_path" | ||
| if [[ -z "$exclude_path_string" ]]; then | ||
| exclude_path_string=":!$_path" | ||
| else | ||
| exclude_path_string="$exclude_path_string :!$_path" | ||
| fi | ||
| done | ||
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| if ! probePathsWithExitCode $exclude_path_string; then | ||
| found_applying_changes=true | ||
| printMatchedPaths $exclude_path_string | ||
| fi | ||
| fi | ||
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| if [[ $found_applying_changes != true && ${#include_paths[@]} -gt 0 ]]; then | ||
| echo "" | ||
| echo "******* Probing $_subset include paths *******"; | ||
| for _path in "${include_paths[@]}"; do | ||
| echo "$_path" | ||
| if [[ -z "$include_path_string" ]]; then | ||
| include_path_string=":$_path" | ||
| else | ||
| include_path_string="$include_path_string :$_path" | ||
| fi | ||
| done | ||
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| if ! probePathsWithExitCode $include_path_string; then | ||
| found_applying_changes=true | ||
| printMatchedPaths $include_path_string | ||
| fi | ||
| fi | ||
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| if [[ $found_applying_changes == true ]]; then | ||
| echo "" | ||
| echo "Setting pipeline variable $_azure_devops_var_name=true" | ||
| Write-PipelineSetVariable -name $_azure_devops_var_name -value true -is_multi_job_variable true | ||
| else | ||
| echo "" | ||
| echo "No changed files for $_subset" | ||
| fi | ||
| } | ||
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| probePaths |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,19 @@ | ||
| # This step template evaluates git changes using git based on a include/exclude path filter. | ||
| # For more information on how the path evaluation works look at evaluate-changed-paths.sh docs | ||
| # at the beginning of that file. | ||
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| parameters: | ||
| # Name for the subset that we're evaluating changes for. | ||
| # It is required to name the step correctly and so the variable created can be consumable. | ||
| subsetName: '' | ||
| # Array containing the arguments that are to be passed down to evaluate-changed-paths.sh | ||
| # Note that --azurevariable is always set to containschange, no need to pass it down. | ||
| arguments: [] | ||
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| steps: | ||
| - ${{ if ne(parameters.arguments[0], '') }}: | ||
| - script: eng/evaluate-changed-paths.sh | ||
| --azurevariable containsChange | ||
| ${{ join(' ', parameters.arguments) }} | ||
| displayName: Evaluate paths for ${{ parameters.subsetName }} | ||
| name: ${{ format('SetPathVars_{0}', parameters.subsetName) }} # need a name to access output variable |
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